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  • Android layout with sqare buttons

    - by Mannaz
    I want to make a layout similar to this one: Four square buttons on the screen - each of those using half of the screen with/screen height (whichever is smaler). I already tried to achieve this by using a LinearLayoutbut the buttons are ending up using the correct width, but still having the height of the background (not square any more). <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent"> <LinearLayout android:layout_width="fill_parent" android:layout_height="wrap_content"> <Button android:layout_height="wrap_content" style="@style/CKMainButton" android:layout_width="fill_parent" android:text="@string/sights" android:id="@+id/ApplicationMainSight" android:layout_toLeftOf="@+id/ApplicationMainEvent"></Button> <Button android:layout_height="wrap_content" style="@style/CKMainButton" android:layout_width="fill_parent" android:text="@string/sights" android:id="@+id/ApplicationMainSight" android:layout_toLeftOf="@+id/ApplicationMainEvent"></Button> </LinearLayout> <LinearLayout android:layout_width="fill_parent" android:layout_height="wrap_content"> <Button android:layout_height="wrap_content" style="@style/CKMainButton" android:layout_weight="1" android:layout_width="fill_parent" android:text="@string/usergenerated" android:id="@+id/ApplicationMainUserGenerated"></Button> <Button android:layout_height="wrap_content" style="@style/CKMainButton" android:layout_weight="1" android:layout_width="fill_parent" android:text="@string/tours" android:id="@+id/ApplicationMainTour"></Button> </LinearLayout> </LinearLayout> It's looking like this: How can i acchieve the Layout to look like the image above?

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  • Android EditText won't take up remaining space

    - by Jamie
    In my Android app, I have a tabbed Activity. In one of the tabs I have two TextViews and two EditTexts. The first EditText is only one line, and that's fine. However, I want the other EditText, android:id="@+id/paste_code", to take up the remaining space, but no matter what I do to it, it will only show one line. I don't want to manually set the number of lines, since the number that would fit on the screen differs based on your device. Here's the relevant code. It's nested inside all the necessary components for a tabbed Activity. <ScrollView android:id="@+id/basicTab" android:layout_width="fill_parent" android:layout_height="fill_parent" > <LinearLayout android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" android:layout_weight="1" > <TextView android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="Paste title" android:layout_weight="0" /> <EditText android:layout_width="fill_parent" android:layout_height="wrap_content" android:hint="@string/paste_title_hint" android:id="@+id/paste_title" android:lines="1" android:gravity="top|left" android:layout_weight="0" /> <TextView android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="Paste text" android:layout_weight="0" /> <EditText android:layout_width="fill_parent" android:layout_height="fill_parent" android:hint="@string/paste_hint" android:id="@+id/paste_code" android:gravity="top|left" android:layout_weight="1" /> </LinearLayout> </ScrollView>

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  • How we see the total content in EditText in android

    - by sairam333
    Thank u But after the Edit Text I use the Icons also .So,when i give Wrap_content for that Edittext The icons are displayed only half ,In below my code is there see that one once <TableRow android:layout_width="wrap_content" android:layout_height="fill_parent"> <TextView android:id="@+id/TextViewEmail" android:text="Email" android:textSize="15sp" android:paddingRight="4dip" android:textStyle="bold" android:layout_width="wrap_content" android:textColor="@android:color/white" android:layout_gravity="right|center" /> <EditText android:id="@+id/EditTextEmail" android:editable="false" android:clickable="false" android:textSize="15sp" android:layout_height="wrap_content" android:singleLine="true" android:layout_width="150sp"/>

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  • android R.layout concept

    - by yoav.str
    can I genrate java code instead using xml code ? lets say i want to do this xml code in a loop : <TableRow android:id="@+id/LivingCreture" android:layout_width="wrap_content" android:layout_height="wrap_content"> <TextView android:text="LivingCreture" android:gravity="left" android:id="@+id/LivingCretureT" android:layout_width="45dp" android:layout_height="45dp"></TextView> <EditText android:text=" " android:gravity="center" android:id="@+id/LivingCretureE" android:layout_width="45dp" android:layout_height="45dp"></EditText> <ImageView android:id="@+id/ImageView03" android:layout_width="wrap_content"android:layout_height="wrap_content"></ImageView> is it possiable ?

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  • Android SDK - Animation prevents further events on View like OnClick()

    - by Ron
    I have an ImageView which is animated via startAnimation() to slide it into the screen. It is visible and enabled in the XML. When I add a Handler for a delay or an onClick event, nothing happens. When I remove the startAnimation() everything works fine. Except the animation of course. Heres my code: balloon.setOnClickListener(new OnClickListener() { @Override public void onClick(View view) { view.setVisibility(View.GONE); } }); Animation dropDown = AnimationUtils.loadAnimation(context, R.anim.balloon_slide_down); dropDown.setStartOffset(1500); balloon.startAnimation(dropDown); Any ideas why that is? I'm quite frustrated by now... Thanks, Ron

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  • How to check server connection is available or not in android

    - by Kalai Selvan.G
    Testing of Network Connection can be done by following method: public boolean isNetworkAvailable() { ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE); NetworkInfo networkInfo = cm.getActiveNetworkInfo(); if (networkInfo != null && networkInfo.isConnected()) { return true; } return false; } But i don't know how to check the server connection.I had followed this method public boolean isConnectedToServer(String url, long timeout) { try{ URL myUrl = new URL(url); URLConnection connection = myUrl.openConnection(); connection.setConnectTimetout(timeout); connection.connect(); return true; } catch (Exception e) { // Handle your exceptions return false; } } it doesn't works....Any Ideas Guys!!

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  • Android: Voice Recording and saving audio

    - by user1320912
    I am working on application that will record the voice of the user and save the file on the SD card and then allow the user to listen to the audio again. I am able to allow the user to record his voice using the RecognizerIntent, but I cant figure out how to save the audio file and allow the user to hear the audio. I would appreciate it if someone could help me out. I have displayed my code below: // Setting up the onClickListener for Audio Button attachVoice = (Button) findViewById(R.id.AttachVoice_questionandanswer); attachVoice.setOnClickListener(new OnClickListener() { public void onClick(View v) { Intent voiceIntent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH); voiceIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, RecognizerIntent.LANGUAGE_MODEL_FREE_FORM); voiceIntent.putExtra(RecognizerIntent.EXTRA_PROMPT, "Please Speak"); startActivityForResult(voiceIntent, VOICE_REQUEST); } }); protected void onActivityResult(int requestCode, int resultCode, Intent data) { if(requestCode == VOICE_REQUEST && resultCode == RESULT_OK){ }

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  • Swipe gestures on Android ListView items

    - by Bartek
    I have a ListView populated by a ResourceCursorAdapter. I use the loaders mechanism to query a ContentProvider for list items. I detect swipe gestures on the list items to perform some actions on them. New items get added by a background service, so the list can change dynamically. Everything works fine, except when I start swiping and a database change occurs (as a result of the background service adding a new row). In such case the gesture is not detected properly. I noticed that ACTION_CANCEL is dispatched to the list item view and also that bindView is executed for all visible items. Inside the bindView method I only set some text - I don't change any listeners there. How can I make gestures work even when new items are being added by the background service? Perhaps there's a way to prevent the motion from being cancelled or I can pause database updates so they don't interrupt the gesture.

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  • Why does Android Account & Sync reboot when trying to find my settings activity?

    - by mobibob
    I have an activity that I can declare as Launcher category and it launches just fine from the home screen. However, when I try to hook-up the same activity into my SyncAdapter's settings activity and open it from the Accounts & Sync page - MySyncAdapter - (touch account listing) it aborts with a system fatal error (reboots phone). Meanwhile, my SyncAdapter is working other respects. Here is the log at point of impact: 01-13 12:31:00.976 5024 5038 I ActivityManager: Starting activity: Intent { act=android.provider.Settings.ACTION_SYNC_SETTINGS flg=0x10000000 cmp=com.myapp.android.syncadapter.ui/SyncAdapterSettingsActivity.class (has extras) } 01-13 12:31:00.985 5024 5038 E AndroidRuntime: *** FATAL EXCEPTION IN SYSTEM PROCESS: android.server.ServerThread 01-13 12:31:00.985 5024 5038 E AndroidRuntime: android.content.ActivityNotFoundException: Unable to find explicit activity class {com.myapp.android.syncadapter.ui/SyncAdapterSettingsActivity.class}; have you declared this activity in your AndroidManifest.xml? 01-13 12:31:00.985 5024 5038 E AndroidRuntime: at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1404) 01-13 12:31:00.985 5024 5038 E AndroidRuntime: at android.app.Instrumentation.execStartActivity(Instrumentation.java:1378) 01-13 12:31:00.985 5024 5038 E AndroidRuntime: at android.app.ContextImpl.startActivity(ContextImpl.java:622) 01-13 12:31:00.985 5024 5038 E AndroidRuntime: at android.preference.Preference.performClick(Preference.java:828) 01-13 12:31:00.985 5024 5038 E AndroidRuntime: at android.preference.PreferenceScreen.onItemClick(PreferenceScreen.java:190) 01-13 12:31:00.985 5024 5038 E AndroidRuntime: at android.widget.AdapterView.performItemClick(AdapterView.java:284) 01-13 12:31:00.985 5024 5038 E AndroidRuntime: at android.widget.ListView.performItemClick(ListView.java:3382) 01-13 12:31:00.985 5024 5038 E AndroidRuntime: at android.widget.AbsListView$PerformClick.run(AbsListView.java:1696) 01-13 12:31:00.985 5024 5038 E AndroidRuntime: at android.os.Handler.handleCallback(Handler.java:587) 01-13 12:31:00.985 5024 5038 E AndroidRuntime: at android.os.Handler.dispatchMessage(Handler.java:92) 01-13 12:31:00.985 5024 5038 E AndroidRuntime: at android.os.Looper.loop(Looper.java:123) 01-13 12:31:00.985 5024 5038 E AndroidRuntime: at com.android.server.ServerThread.run(SystemServer.java:517) 01-13 12:31:00.985 5024 5038 I Process : Sending signal. PID: 5024 SIG: 9 01-13 12:31:01.005 5019 5019 I Zygote : Exit zygote because system server (5024) has terminated 01-13 12:31:01.015 1211 1211 E installd: eof Here is a snippet from my manifest file: <activity android:name="com.myapp.android.syncadapter.ui.SyncAdapterSettingsActivity" android:label="@string/title_settings" android:windowSoftInputMode="stateAlwaysHidden|adjustPan"> <intent-filter> <action android:name="android.intent.action.VIEW" /> <action android:name="android.intent.action.MAIN" /> <action android:name="android.provider.Settings.ACTION_SYNC_SETTINGS"/> <category android:name="android.intent.category.DEFAULT" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity>

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  • Updated - Having trouble making a circled button in android

    - by user3641545
    I'm trying to use an image as a button. The image is an oval/circle, so when I set it as the background there's basically a black box with the image on top of it. How can I fix this? This is the fragment main xml: <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" tools:context="com.example.example1.MainActivity$PlaceholderFragment" > <ImageButton android:id="@+id/hardButton" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerHorizontal="true" android:layout_centerVertical="true" android:background="@drawable/hard_button_clickable" android:onClick="hardButton" android:text="@string/button_hard" android:textColor="#ffff00" android:textSize="50sp" /> </RelativeLayout> This is the hard button xml: <?xml version="1.0" encoding="utf-8"?> <selector xmlns:android="http://schemas.android.com/apk/res/android"> <item android:drawable="@drawable/hard_button_img" android:state_focused="true" android:state_pressed="false"/> <item android:drawable="@drawable/hard_button_img" android:state_focused="true" android:state_pressed="true"/> <item android:drawable="@drawable/hard_button_img"/> </selector> Here's the problem in the app: http://i.gyazo.com/a7f3b25341ebf4146d294df1f5660e99.png I've tried setting background to null and setting src to my image file. Nothing changed. Thanks. e; Here's the actual PNG: http://tinypic.com/r/av3cli/8 e; Still looking for help with this!

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  • 8 Things You Can Do In Android’s Developer Options

    - by Chris Hoffman
    The Developer Options menu in Android is a hidden menu with a variety of advanced options. These options are intended for developers, but many of them will be interesting to geeks. You’ll have to perform a secret handshake to enable the Developer Options menu in the Settings screen, as it’s hidden from Android users by default. Follow the simple steps to quickly enable Developer Options. Enable USB Debugging “USB debugging” sounds like an option only an Android developer would need, but it’s probably the most widely used hidden option in Android. USB debugging allows applications on your computer to interface with your Android phone over the USB connection. This is required for a variety of advanced tricks, including rooting an Android phone, unlocking it, installing a custom ROM, or even using a desktop program that captures screenshots of your Android device’s screen. You can also use ADB commands to push and pull files between your device and your computer or create and restore complete local backups of your Android device without rooting. USB debugging can be a security concern, as it gives computers you plug your device into access to your phone. You could plug your device into a malicious USB charging port, which would try to compromise you. That’s why Android forces you to agree to a prompt every time you plug your device into a new computer with USB debugging enabled. Set a Desktop Backup Password If you use the above ADB trick to create local backups of your Android device over USB, you can protect them with a password with the Set a desktop backup password option here. This password encrypts your backups to secure them, so you won’t be able to access them if you forget the password. Disable or Speed Up Animations When you move between apps and screens in Android, you’re spending some of that time looking at animations and waiting for them to go away. You can disable these animations entirely by changing the Window animation scale, Transition animation scale, and Animator duration scale options here. If you like animations but just wish they were faster, you can speed them up. On a fast phone or tablet, this can make switching between apps nearly instant. If you thought your Android phone was speedy before, just try disabling animations and you’ll be surprised how much faster it can seem. Force-Enable FXAA For OpenGL Games If you have a high-end phone or tablet with great graphics performance and you play 3D games on it, there’s a way to make those games look even better. Just go to the Developer Options screen and enable the Force 4x MSAA option. This will force Android to use 4x multisample anti-aliasing in OpenGL ES 2.0 games and other apps. This requires more graphics power and will probably drain your battery a bit faster, but it will improve image quality in some games. This is a bit like force-enabling antialiasing using the NVIDIA Control Panel on a Windows gaming PC. See How Bad Task Killers Are We’ve written before about how task killers are worse than useless on Android. If you use a task killer, you’re just slowing down your system by throwing out cached data and forcing Android to load apps from system storage whenever you open them again. Don’t believe us? Enable the Don’t keep activities option on the Developer options screen and Android will force-close every app you use as soon as you exit it. Enable this app and use your phone normally for a few minutes — you’ll see just how harmful throwing out all that cached data is and how much it will slow down your phone. Don’t actually use this option unless you want to see how bad it is! It will make your phone perform much more slowly — there’s a reason Google has hidden these options away from average users who might accidentally change them. Fake Your GPS Location The Allow mock locations option allows you to set fake GPS locations, tricking Android into thinking you’re at a location where you actually aren’t. Use this option along with an app like Fake GPS location and you can trick your Android device and the apps running on it into thinking you’re at locations where you actually aren’t. How would this be useful? Well, you could fake a GPS check-in at a location without actually going there or confuse your friends in a location-tracking app by seemingly teleporting around the world. Stay Awake While Charging You can use Android’s Daydream Mode to display certain apps while charging your device. If you want to force Android to display a standard Android app that hasn’t been designed for Daydream Mode, you can enable the Stay awake option here. Android will keep your device’s screen on while charging and won’t turn it off. It’s like Daydream Mode, but can support any app and allows users to interact with them. Show Always-On-Top CPU Usage You can view CPU usage data by toggling the Show CPU usage option to On. This information will appear on top of whatever app you’re using. If you’re a Linux user, the three numbers on top probably look familiar — they represent the system load average. From left to right, the numbers represent your system load over the last one, five, and fifteen minutes. This isn’t the kind of thing you’d want enabled most of the time, but it can save you from having to install third-party floating CPU apps if you want to see CPU usage information for some reason. Most of the other options here will only be useful to developers debugging their Android apps. You shouldn’t start changing options you don’t understand. If you want to undo any of these changes, you can quickly erase all your custom options by sliding the switch at the top of the screen to Off.     

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  • Cant delete more than 200 contacts in HTC HERO

    - by rahul
    I'm working on security application which will copy all contacts to some other database and delete all contacts from phonebook. I'm testing this on android HTC HERO. I'm successful to delete contacts from phonebook and create new contact info database, Till 200 it is working, but after 200 contacts its not working properly. After tht application starts throwing error. There is one Sync with Google Option in MenuSettingData Sync, I think that is creating problem. There is notification that "Too many contacts deleted" n if i click tht there will b a dialog with title "Delete Limit exceeded". Is there anything i can do to stop syncronization or any other ideas by which i can achieve required output? Please Help me on this

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  • Problem in getting Contact Info

    - by Rahul
    Hi, I m working on application in which i have to send all contacts from Android mobile to other mobile through SMS. I don't have any problem in getting contact information but when I send those Contacts after few messages there is Alert Window pop up saying "A large number of message have being send" and ask if you want to send or not. I am testing this application on HTC Hero. Is this problem is for specific mobiles or for all? I don't know what should i do to avoid this window because I cant get SMS Sent event. Please help me with any ideas that i can implement........ Thanks

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  • Progressbar blocks notiyfyDatasetChanged() method in Android

    - by pathfinder
    I'm trying to display a ProgressBar while a listview is being populated. This is my XML <FrameLayout android:layout_width="fill_parent" android:layout_height="wrap_content" > <ListView android:id="@android:id/list" android:layout_width="fill_parent" android:layout_height="fill_parent" android:divider="@null" android:dividerHeight="0dp" android:fadingEdge="none" > </ListView> <ProgressBar android:id="@+id/doProgress" android:layout_width="60dp" android:layout_height="60dp" android:layout_gravity="center" /> </FrameLayout> ProgressBar's visibiliy has been changed in the onPostExecuteMethod when the whole listview is loaded. AsyncTask Code: public class WhatToDoLoader extends AsyncTask<String, String, String> { ProgressDialog progress = new ProgressDialog(WhatToDo.this); String url = "http://wearedesigners.net/clients/clients12/tourism/fetchWhatToDoList.php"; final String TAG_MAIN = "item"; final String TAG_ID = "itemId"; final String TAG_NAME = "itemName"; final String TAG_DETAIL = "itemDetailText"; final String TAG_ITEM_IMAGE = "itemImages"; final String TAG_MAP = "itemMapData"; final String TAG_MAP_IMAGE = "mapImage"; @Override protected void onProgressUpdate(String... values) { // TODO Auto-generated method stub super.onProgressUpdate(values); adapter.notifyDataSetChanged(); } @Override protected void onPreExecute() { // TODO Auto-generated method stub super.onPreExecute(); /* * progress.setMessage("Loading What To Do List"); progress.show(); */ } @Override protected String doInBackground(String... params) { XMLParser parser = new XMLParser(); String xml = parser.getXmlFromUrl(url); // getting XML Document doc = parser.getDomElement(xml); // getting DOM element NodeList nl = doc.getElementsByTagName(TAG_MAIN); // TODO Auto-generated method stub for (int i = 0; i < nl.getLength(); i++) { // creating new HashMap HashMap<String, String> map = new HashMap<String, String>(); Element e = (Element) nl.item(i); // adding each child node to HashMap key => value map.put(TAG_ID, parser.getValue(e, TAG_ID)); map.put(TAG_NAME, parser.getValue(e, TAG_NAME)); map.put(TAG_DETAIL, parser.getValue(e, TAG_DETAIL)); map.put(TAG_MAP, parser.getValue(e, TAG_MAP)); map.put(TAG_MAP_IMAGE, parser.getValue(e, TAG_MAP_IMAGE)); map.put(TAG_ITEM_IMAGE, parser.getValue(e, TAG_ITEM_IMAGE)); System.out.println("Test : " + parser.getValue(e, TAG_ID)); // adding HashList to ArrayList whatToDoInfo.add(map); publishProgress(""); } return null; } @Override protected void onPostExecute(String result) { // TODO Auto-generated method stub super.onPostExecute(result); ProgressBar pb = (ProgressBar) findViewById(R.id.doProgress); pb.setVisibility(pb.INVISIBLE); } } When i run the code it throws the following exception. *java.lang.IllegalStateException: The content of the adapter has changed but ListView did not receive a notification. Make sure the content of your adapter is not modified from a background thread, but only from the UI thread.* But the same code works fine when the progressbar feature is omitted. I can't find where i'm going wrong. can someone please help me ? Thank you in advance.

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  • The HTG Guide to Using a Bluetooth Keyboard with Your Android Device

    - by Matt Klein
    Android devices aren’t usually associated with physical keyboards. But, since Google is now bundling their QuickOffice app with the newly-released Kit-Kat, it appears inevitable that at least some Android tablets (particularly 10-inch models) will take on more productivity roles. In recent years, physical keyboards have been rendered obsolete by swipe style input methods such as Swype and Google Keyboard. Physical keyboards tend to make phones thick and plump, and that won’t fly today when thin (and even flexible and curved) is in vogue. So, you’ll be hard-pressed to find smartphone manufacturers launching new models with physical keyboards, thus rendering sliders to a past chapter in mobile phone evolution. It makes sense to ditch the clunky keyboard phone in favor of a lighter, thinner model. You’re going to carry around in your pocket or purse all day, why have that extra bulk and weight? That said, there is sound logic behind pairing tablets with keyboards. Microsoft continues to plod forward with its Surface models, and while critics continue to lavish praise on the iPad, its functionality is obviously enhanced and extended when you add a physical keyboard. Apple even has an entire page devoted specifically to iPad-compatible keyboards. But an Android tablet and a keyboard? Does such a thing even exist? They do actually. There are docking keyboards and keyboard/case combinations, there’s the Asus Transformer family, Logitech markets a Windows 8 keyboard that speaks “Android”, and these are just to name a few. So we know that keyboard products that are designed to work with Android exist, but what about an everyday Bluetooth keyboard you might use with Windows or OS X? How-To Geek wanted look at how viable it is to use such a keyboard with Android. We conducted some research and examined some lists of Android keyboard shortcuts. Most of what we found was long outdated. Many of the shortcuts don’t even apply anymore, while others just didn’t work. Regardless, after a little experimentation and a dash of customization, it turns out using a keyboard with Android is kind of fun, and who knows, maybe it will catch on. Setting things up Setting up a Bluetooth keyboard with Android is very easy. First, you’ll need a Bluetooth keyboard and of course an Android device, preferably running version 4.1 (Jelly Bean) or higher. For our test, we paired a second-generation Google Nexus 7 running Android 4.3 with a Samsung Series 7 keyboard. In Android, enable Bluetooth if it isn’t already on. We’d like to note that if you don’t normally use Bluetooth accessories and peripherals with your Android device (or any device really), it’s best practice to leave Bluetooth off because, like GPS, it drains the device’s battery more quickly. To enable Bluetooth, simply go to “Settings” -> “Bluetooth” and tap the slider button to “On”. To set up the keyboard, make sure it is on and then tap “Bluetooth” in the Android settings. On the resulting screen, your Android device should automatically search for and hopefully find your keyboard. If you don’t get it right the first time, simply turn the keyboard on again and then tap “Search for Devices” to try again. If it still doesn’t work, make sure you have fresh batteries and the keyboard isn’t paired to another device. If it is, you will need to unpair it before it will work with your Android device (consult your keyboard manufacturer’s documentation or Google if you don’t know how to do this). When Android finds your keyboard, select it under “Available Devices” … … and you should be prompted to type in a code: If successful, you will see that device is now “Connected” and you’re ready to go. If you want to test things out, try pressing the “Windows” key (“Apple” or “Command”) + ESC, and you will be whisked to your Home screen. So, what can you do? Traditional Mac and Windows users know there’s usually a keyboard shortcut for just about everything (and if there isn’t, there’s all kinds of ways to remap keys to do a variety of commands, tasks, and functions). So where does Android fall in terms of baked-in keyboard commands? There answer to that is kind of enough, but not too much. There are definitely established combos you can use to get around, but they aren’t clear and there doesn’t appear to be any one authority on what they are. Still, there is enough keyboard functionality in Android to make it a viable option, if only for those times when you need to get something done (long e-mail or important document) and an on-screen keyboard simply won’t do. It’s important to remember that Android is, and likely always will be a touch-first interface. That said, it does make some concessions to physical keyboards. In other words, you can get around Android fairly well without having to lift your hands off the keys, but you will still have to tap the screen regularly, unless you add a mouse. For example, you can wake your device by tapping a key rather than pressing its power button. However, if your device is slide or pattern-locked, then you’ll have to use the touchscreen to unlock it – a password or PIN however, works seamlessly with a keyboard – other things like widgets and app controls and features, have to be tapped. You get the idea. Keyboard shortcuts and navigation As we said, baked-in keyboard shortcut combos aren’t necessarily abundant nor apparent. The one thing you can always do is search. Any time you want to Google something, start typing from the Home screen and the search screen will automatically open and begin displaying results. Other than that, here is what we were able to figure out: ESC = go back CTRL + ESC = menu CTRL + ALT + DEL = restart (no questions asked) ALT + SPACE = search page (say “OK Google” to voice search) ALT + TAB (ALT + SHIFT + TAB) = switch tasks Also, if you have designated volume function keys, those will probably work too. There’s also some dedicated app shortcuts like calculator, Gmail, and a few others: CMD + A = calculator CMD + C = contacts CMD + E = e-mail CMD + G = Gmail CMD + L = Calendar CMD + P = Play Music CMD + Y = YouTube Overall, it’s not a long comprehensive list and there’s no dedicated keyboard combos for the full array of Google’s products. Granted, it’s hard to imagine getting a lot of mileage out of a keyboard with Maps but with something like Keep, you could type out long, detailed lists on your tablet, and then view them on your smartphone when you go out shopping. You can also use the arrow keys to navigate your Home screen over shortcuts and open the app drawer. When something on the screen is selected, it will be highlighted in blue. Press “Enter” to open your selection. Additionally, if an app has its own set of shortcuts, e.g. Gmail has quite a few unique shortcuts to it, as does Chrome, some – though not many – will work in Android (not for YouTube though). Also, many “universal” shortcuts such as Copy (CTRL + C), Cut (CTRL + X), Paste (CTRL + V), and Select All (CTRL + A) work where needed – such as in instant messaging, e-mail, social media apps, etc. Creating custom application shortcuts What about custom shortcuts? When we were researching this article, we were under the impression that it was possible to assign keyboard combinations to specific apps, such as you could do on older Android versions such as Gingerbread. This no long seems to be the case and nowhere in “Settings” could we find a way to assign hotkey combos to any of our favorite, oft-used apps or functions. If you do want custom keyboard shortcuts, what can you do? Luckily, there’s an app on Google Play that allows you to, among other things, create custom app shortcuts. It is called External Keyboard Helper (EKH) and while there is a free demo version, the pay version is only a few bucks. We decided to give EKH a whirl and through a little experimentation and finally reading the developer’s how-to, we found we could map custom keyboard combos to just about anything. To do this, first open the application and you’ll see the main app screen. Don’t worry about choosing a custom layout or anything like that, you want to go straight to the “Advanced settings”: In the “Advanced settings” select “Application shortcuts” to continue: You can have up to 16 custom application shortcuts. We are going to create a custom shortcut to the Facebook app. We choose “A0”, and from the resulting list, Facebook. You can do this for any number of apps, services, and settings. As you can now see, the Facebook app has now been linked to application-zero (A0): Go back to the “Advanced settings” and choose “Customize keyboard mappings”: You will be prompted to create a custom keyboard layout so we choose “Custom 1”: When you choose to create a custom layout, you can do a great many more things with your keyboard. For example, many keyboards have predefined function (Fn) keys, which you can map to your tablet’s brightness controls, toggle WiFi on/off, and much more. A word of advice, the application automatically remaps certain keys when you create a custom layout. This might mess up some existing keyboard combos. If you simply want to add some functionality to your keyboard, you can go ahead and delete EKH’s default changes and start your custom layout from scratch. To create a new combo, select “Add new key mapping”: For our new shortcut, we are going to assign the Facebook app to open when we key in “ALT + F”. To do this, we press the “F” key while in the “Scancode” field and we see it returns a value of “33”. If we wanted to use a different key, we can press “Change” and scan another key’s numerical value. We now want to assign the “ALT” key to application “A0”, previously designated as the Facebook app. In the “AltGr” field, we enter “A0” and then “Save” our custom combo. And now we see our new application shortcut. Now, as long as we’re using our custom layout, every time we press “ALT + F”, the Facebook app will launch: External Keyboard Helper extends far beyond simple application shortcuts and if you are looking for deeper keyboard customization options, you should definitely check it out. Among other things, EKH also supports dozens of languages, allows you to quickly switch between layouts using a key or combo, add up to 16 custom text shortcuts, and much more! It can be had on Google Play for $2.53 for the full version, but you can try the demo version for free. More extensive documentation on how to use the app is also available. Android? Keyboard? Sure, why not? Unlike traditional desktop operating systems, you don’t need a physical keyboard and mouse to use a mobile operating system. You can buy an iPad or Nexus 10 or Galaxy Note, and never need another accessory or peripheral – they work as intended right out of the box. It’s even possible you can write the next great American novel on one these devices, though that might require a lot of practice and patience. That said, using a keyboard with Android is kind of fun. It’s not revelatory but it does elevate the experience. You don’t even need to add customizations (though they are nice) because there are enough existing keyboard shortcuts in Android to make it usable. Plus, when it comes to inputting text such as in an editor or terminal application, we fully advocate big, physical keyboards. Bottom line, if you’re looking for a way to enhance your Android tablet, give a keyboard a chance. Do you use your Android device for productivity? Is a physical keyboard an important part of your setup? Do you have any shortcuts that we missed? Sound off in the comments and let us know what you think.     

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  • Using backport-android-bluetooth on Android 1.6

    - by newth
    Hi, I'm trying to write an application using Bluetooth on Android 1.6. Since it's not officially supported, I found the backport of android.bluetooth API ( http://code.google.com/p/backport-android-bluetooth ). But when I deploy the sample chat application (modified for backport) LogCat gives me the error below: My question is, how I can use backport-android-bluetooth on 1.6 and is there any working samples? Thanks! 11-30 14:03:19.890: ERROR/AndroidRuntime(1927): Uncaught handler: thread main exiting due to uncaught exception 11-30 14:03:19.906: ERROR/AndroidRuntime(1927): java.lang.ExceptionInInitializerError 11-30 14:03:19.906: ERROR/AndroidRuntime(1927): at backport.android.bluetooth.BluetoothSocket.<init>(BluetoothSocket.java:69) 11-30 14:03:19.906: ERROR/AndroidRuntime(1927): at backport.android.bluetooth.BluetoothServerSocket.<init>(BluetoothServerSocket.java:16) 11-30 14:03:19.906: ERROR/AndroidRuntime(1927): at backport.android.bluetooth.BluetoothAdapter.listenUsingRfcommWithServiceRecord(BluetoothAdapter.java:513) 11-30 14:03:19.906: ERROR/AndroidRuntime(1927): at com.example.bluetooth.BluetoothChatService$AcceptThread.<init>(BluetoothChatService.java:237) 11-30 14:03:19.906: ERROR/AndroidRuntime(1927): at com.example.bluetooth.BluetoothChatService.start(BluetoothChatService.java:109) 11-30 14:03:19.906: ERROR/AndroidRuntime(1927): at com.example.bluetooth.BluetoothChat.onResume(BluetoothChat.java:138) 11-30 14:03:19.906: ERROR/AndroidRuntime(1927): at android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1225) 11-30 14:03:19.906: ERROR/AndroidRuntime(1927): at android.app.Activity.performResume(Activity.java:3559) 11-30 14:03:19.906: ERROR/AndroidRuntime(1927): at android.app.ActivityThread.performResumeActivity(ActivityThread.java:2838) 11-30 14:03:19.906: ERROR/AndroidRuntime(1927): at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:2866) 11-30 14:03:19.906: ERROR/AndroidRuntime(1927): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2420) 11-30 14:03:19.906: ERROR/AndroidRuntime(1927): at android.app.ActivityThread.access$2100(ActivityThread.java:116) 11-30 14:03:19.906: ERROR/AndroidRuntime(1927): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1794) 11-30 14:03:19.906: ERROR/AndroidRuntime(1927): at android.os.Handler.dispatchMessage(Handler.java:99) 11-30 14:03:19.906: ERROR/AndroidRuntime(1927): at android.os.Looper.loop(Looper.java:123) 11-30 14:03:19.906: ERROR/AndroidRuntime(1927): at android.app.ActivityThread.main(ActivityThread.java:4203) 11-30 14:03:19.906: ERROR/AndroidRuntime(1927): at java.lang.reflect.Method.invokeNative(Native Method) 11-30 14:03:19.906: ERROR/AndroidRuntime(1927): at java.lang.reflect.Method.invoke(Method.java:521) 11-30 14:03:19.906: ERROR/AndroidRuntime(1927): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:791) 11-30 14:03:19.906: ERROR/AndroidRuntime(1927): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:549) 11-30 14:03:19.906: ERROR/AndroidRuntime(1927): at dalvik.system.NativeStart.main(Native Method) 11-30 14:03:19.906: ERROR/AndroidRuntime(1927): Caused by: java.lang.UnsatisfiedLinkError: classInitNative 11-30 14:03:19.906: ERROR/AndroidRuntime(1927): at android.bluetooth.RfcommSocket.classInitNative(Native Method) 11-30 14:03:19.906: ERROR/AndroidRuntime(1927): at android.bluetooth.RfcommSocket.<clinit>(RfcommSocket.java:152) 11-30 14:03:19.906: ERROR/AndroidRuntime(1927): ... 21 more

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  • How does Android decide which background resource to draw on the foreground?

    - by Sebi
    I defined two ImageButton which are contained in a LinearLayout in my XML layout file: <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/tabs" android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="horizontal" android:minHeight="40px" android:background="@drawable/library_tabs_background"> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/button_library" android:layout_width="160px" android:paddingTop="7px" android:layout_height="40px" android:paddingLeft="30px" android:orientation="horizontal"> <ImageButton android:id="@+id/list" android:layout_width="110px" android:layout_height="30px" android:src="@drawable/library_tab1_button_active"> </ImageButton> </LinearLayout> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/button_search" android:layout_width="160px" android:paddingTop="7px" android:layout_height="40px" android:orientation="horizontal"> <ImageButton android:id="@+id/search" android:layout_width="110px" android:layout_height="30px" android:src="@drawable/library_tab2_button_deactive"> </ImageButton> </LinearLayout> </LinearLayout> As one can see in the XML file, also the LinearLayout in which the buttons are contained, a background image is set. This two images (the button background and the linearlayout background) are overlapping. So in some views, the button background is in front of the layout background and in other views (im using a view flipper), the background of the layer is in the foreground. How can i set a clear rule? How does Android decide which BackgroundResource to draw first?

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  • Hey, Google: It’s Time to Add Multi-Window Multitasking To Android

    - by Chris Hoffman
    In 2012, Google’s Dianne Hackborn threatened to revoke CyanogenMod’s access to the Android Market if they moved forward with adding “Cornerstone” multitasking to their custom ROM. Samsung has since created their own multi-window multitasking feature. Dianne Hackborn said this “is something that needs to be done at the mainline platform level” so apps wouldn’t break. She was right — Android needs this as a standard feature and it’s time for Google to provide it. Doesn’t Android Have Multitasking? Android originally stood out from Apple’s iOS with its powerful multitasking. Applications can continue running in the background while you’re using another application. This makes Android powerful — you can even have BitTorrent clients downloading files in the background while using another app. Android still kept the design of a single app on screen at a time. This made a lot of sense when Android only ran on smartphones with small screens. Today, Android runs on everything from smaller smartphones all the way up to huge “phablets” like the Galaxy Note. Android has gone beyond phones and runs on 12-inch tablets, convertibles with keyboard docks, laptops, and even Android desktops. Android isn’t just a phone operating system. Samsung’s Multi-Window Isn’t Good Enough Samsung has tried to add value to Android by adding a multi-window feature. When you’re using a high-end phone like the Galaxy Note or Galaxy S, or a Galaxy tablet, you have the ability to run certain apps side-by-side with each other. There are big problems here. This only works on Samsung devices, and only on specific Samsung devices. To add support for this feature in a way that doesn’t break other apps, Samsung’s multi-window feature also only works with specific apps. You can’t just run any app in multi-window view, only the apps on the Multi Window bar Samsung provides. This prevents third-party apps from breaking, which is what Google was worried about with CyanogenMod’s Cornerstone feature. A feature that only works with a handful of apps on specific devices from a single manufacturer isn’t good enough. This feature needs to work on every Android device — or at least ones with suitably large screens and powerful enough internals. It needs to be an Android platform feature so application developers can ensure their apps will work properly with it on every device. Android developers shouldn’t have to add support for each manufacturer’s own multi-window feature if other manufacturers decide to copy Samsung. Floating Apps Are a Dirty Hack Floating apps also enable real multitasking. Remember that Android allows apps to run in the background while you’re using an app in the foreground. These apps can present interfaces that appear floating above the current app — think of it like using “always on top” to make a window always appear over every other app on a desktop operating system. You can install floating apps to browse the web, take notes, chat, and watch videos while using any app. Only apps specifically designed to run as floating apps will work, so you have to seek them out. Floating apps are also awkward to use because they float over the app you’re using, blocking parts of its interface. Microsoft added floating-window support to Skype for Android. You can have a video conversation and the other person’s face will always appear on your screen, even when you leave the Skype app. Microsoft is using more of Android’s multi-window multitasking power than Google is. Custom ROMs and Root-Only Tweaks Aren’t Acceptable Some custom ROMs are adding this feature to Android. Google threatened to revoke CyanogenMod’s access to the Android Market (now known as Google Play) if they added this feature because it could potentially break third-party apps. Today, other custom ROMs are working on split-screen multitasking. Samsung added their own version to their own devices. You can also get this feature by using a root-only Xposed Framework tweak known as XMultiWindow. If you have root access, you can get multi-window multitasking or any app on your device. This shouldn’t require rooting your device or installing a custom ROM. These third-party solutions often have awkward interfaces and bugs. We need an integrated, supported solution that works the same on every device. Why Multi-Window is Important Microsoft’s Windows 8.1 stands out among tablet operating systems for its powerful multitasking support, allowing you to view several apps side-by-side at the same time. Apple is also reported to be working on adding side-by-side apps to the iPad with iOS 8. On every competitor’s operating system, you’ll be able to view a web page while you write an email, watch a video while you browse the web, or chat with someone while you do anything else. But Android’s still remained frozen in time. Despite all Android’s underlying power — and despite the way Android allows apps to adapt to different screen sizes — Google is resisting adding this feature. Large-screen Android tablets like the Nexus 10 (remember that tablet Google hasn’t updated in over 18 months?) need this feature. So do huge phones, convertibles, laptops, and Android desktops. If tablets are the future of personal computing, we should be able to do more than one thing at a time on our tablets’ big screens. Microsoft, Samsung, and even Apple are realizing this — now it’s Google’s turn. Image Credit: Sergey Galyonkin on Flickr, Karlis Dambrans on Flickr

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  • How do I get a Java to call data from the Internet? Where to even start??

    - by cdg
    Hello oh great wizards of all things android. I really need your help. Mostly because my little brain just doesn't know were to start. I am trying to pull data from the internet to make a widget for the home screen. I have the layout built: <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/Layout" android:layout_width="fill_parent" android:layout_height="fill_parent" android:background="@drawable/widget_bg_normal" android:clipChildren="false" > <TextView android:id="@+id/text_view" android:layout_width="100px" android:layout_height="wrap_content" android:paddingTop="18px" android:layout_centerHorizontal="true" android:textSize="8px" android:text="158x154 Image downloaded from the internet goes here. Needs to be updated every evening at midnight or unless the button below is pressed. Now if I could only figure out exactly how to do this, life would be good." /> <Button android:id="@+id/new_button" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="Get New" android:layout_below="@+id/scroll_image" android:layout_centerHorizontal="true" android:padding="0px" android:textSize="10px" android:height="8px" android:includeFontPadding="false" /> </RelativeLayout> Got the provider xml bulit: <?xml version="1.0" encoding="utf-8"?> <appwidget-provider xmlns:android="http://schemas.android.com/apk/res/android" android:minWidth="150dip" android:minHeight="150dip" android:updatePeriodMillis="10000" android:initialLayout="@layout/widget" /> The Manifest works great. <?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.dge.myandroid" android:versionCode="1" android:versionName="1.0"> <application android:icon="@drawable/icon" android:label="@string/app_name"> <activity android:name=".myactivty" android:label="@string/app_name"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> <!-- Widget --> <receiver android:name=".mywidget" android:label="@string/app_name" > <intent-filter> <action android:name="android.appwidget.action.APPWIDGET_UPDATE" /> </intent-filter> <meta-data android:name="android.appwidget.widgetprovider" android:resource="@xml/widgetprovider" /> </receiver> <!-- Widget End --> </application> <uses-permission android:name="android.permission.INTERNET" /> <uses-sdk android:minSdkVersion="7" /> </manifest> The data it is calling looks something like this when it is called. It basically goes to a website that uses php to random the image: <html><body bgcolor="#000000">center> <a href="http://www.website.com" target="_blank"> <img border="0" src="http://www.webiste.com//0.gif"></a> <img src="http://www.webiste.com" style="border:none;" /> </center></body></html> But here is were I am stuck. I just don't know where to start at all. The java is so far beyond my little head that I don't know what to do. package com.dge.myandroid; import android.appwidget.AppWidgetProvider; public class mywidget extends AppWidgetProvider { } The wiki example just confused me more. I just don't know where to begin. Please help.

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  • focusable row inside table android

    - by Nikitas
    Hello guys, i have in xml a ScrollView which includes one TableLayout. My question is if it's possible to have a focusable row every time i click on it. Here is my xml code: <ScrollView android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="wrap_content"> <TableLayout android:id="@+id/table2" android:layout_width="wrap_content" android:layout_height="wrap_content" > <TableRow> <RelativeLayout android:id="@+id/rowlayout" android:layout_width="wrap_content" android:layout_height="fill_parent" android:background="@drawable/rowbackground2" > <ImageView android:id="@+id/icon" android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@drawable/icon_code_contact" android:padding="7dip" android:layout_alignParentLeft="true" /> <TextView android:id="@+id/contacts" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textStyle="bold" android:text="Contacts" android:textColor="#000" android:textSize="18dip" android:layout_toRightOf="@id/icon" android:paddingTop="10dip" /> </RelativeLayout> </TableRow> <TableRow> <Button android:id="@+id/contacts_button" android:layout_width="wrap_content" android:layout_height="wrap_content" android:background="@drawable/contact_button" /> </TableRow> I have already tried the "focusable="true"" and "focusableInTouchMode="true"" but nothing happened.. thanks in advance

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  • Android Home Screen Widget Failing with EditText

    - by Chris
    Whenever I add an EditText widget to the layout of my home screen widget (confusing how the term "widget" is being used twice in the Android lexicon :-/ ), I receive the "Problem Loading Widget" error box. Here is the layout I'm attempting; if you remove the EditText, it works... < RelativeLayout android:layout_width="fill_parent" android:layout_height="fill_parent" xmlns:android="http://schemas.android.com/apk/res/android" <Button android:id="@+id/button_generate" android:layout_width="54px" android:layout_height="54px" android:text="Generate" android:textSize="10sp" android:gravity="center" android:layout_alignParentTop="true" android:layout_toRightOf="@+id/edittext_key"> </Button> <TextView android:id="@+id/textview_hash" android:layout_width="75px" android:layout_height="45px" android:text="Password" android:textSize="11sp" android:gravity="left" android:layout_alignParentTop="true" android:layout_toLeftOf="@+id/edittext_key"> </TextView> <EditText android:id="@+id/edittext_data2" android:layout_width="200px" android:layout_height="50px" android:textSize="12sp" android:layout_marginTop="20px" android:layout_alignParentTop="true" android:layout_centerHorizontal="true"> </EditText> </RelativeLayout> Now, the Google Search home screen widget has an EditText, so it's obviously legal to implement. Any thoughts on why this is not working?

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  • Mobile: Wrox Cross Platform Mobile Development - iPhone, iPad, Android, and everything with .NET & C#

    - by Wallym
    Wrox has produced a bundle of their 3 best selling mobile development books and it is available as of Today (March 16). A bundle of 3 best-selling and respected mobile development e-books from Wrox form a complete library on the key tools and techniques for developing apps across the hottest platforms including Android and iOS. This collection includes the full content of these three books, at a special price: Professional Android Programming with Mono for Android and .NET/C#, ISBN: 9781118026434, by Wallace B. McClure, Nathan Blevins, John J. Croft, IV, Jonathan Dick, and Chris Hardy Professional iPhone Programming with MonoTouch and .NET/C#, ISBN: 9780470637821, by Wallace B. McClure, Rory Blyth, Craig Dunn, Chris Hardy, and Martin Bowling Professional Cross-Platform Mobile Development in C#, ISBN: 9781118157701, by Scott Olson, John Hunter, Ben Horgen, and Kenny Goers Remember, go buy 8-10 copies of the 3 book set for the ones you love. They will make great and romantic gifts!!

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  • Is there alternative way to sell android app?

    - by user34412
    I am a developer of android apps from Macedonia. So my country is not on the list of countries that one can sell paid app from (on the Android Market). I have a few apps ready for several months now and I am really struggling to find a way, alternative to sell my apps and have it licensed. I know that there are several markets that sell android app, but I want my apps to be licensed as well, and that is very important to me. I know that there are many countries that are not on that list, so if there are developers that had similar experience and solved their problems, please share your experience with me. I am eager to know if there is something I can do? Thank u for your answers in advance.

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  • png image store in database and retrieve in android 1.5

    - by hany
    hai, I am new to android. I have problem. This is my code but it will not work, the problem is in view binder. Please correct it. // this is my activity package com.android.Fruits2; import java.util.ArrayList; import java.util.HashMap; import android.app.ListActivity; import android.database.Cursor; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.os.Bundle; import android.widget.SimpleAdapter; import android.widget.SimpleCursorAdapter; import android.widget.SimpleAdapter.ViewBinder; public class Fruits2 extends ListActivity { private DBhelper mDB; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // setContentView(R.layout.main); mDB = new DBhelper(this); mDB.Reset(); Bitmap img = BitmapFactory.decodeResource(getResources(), R.drawable.icon); mDB.createPersonEntry(new PersonData(img, "Harsha", 24,"mca")); String[] columns = {mDB.KEY_ID, mDB.KEY_IMG, mDB.KEY_NAME, mDB.KEY_AGE, mDB.KEY_STUDY}; String table = mDB.PERSON_TABLE; Cursor c = mDB.getHandle().query(table, columns, null, null, null, null, null); startManagingCursor(c); SimpleCursorAdapter adapter = new SimpleCursorAdapter(this, R.layout.data, c, new String[] {mDB.KEY_IMG, mDB.KEY_NAME, mDB.KEY_AGE, mDB.KEY_STUDY}, new int[] {R.id.img, R.id.name, R.id.age,R.id.study}); adapter.setViewBinder( new MyViewBinder()); setListAdapter(adapter); } } //my viewbinder package com.android.Fruits2; import android.database.Cursor; import android.graphics.BitmapFactory; import android.view.View; import android.widget.ImageView; import android.widget.SimpleCursorAdapter; public class MyViewBinder implements SimpleCursorAdapter.ViewBinder { public boolean setViewValue(View view, Cursor cursor, int columnIndex) { if( (view instanceof ImageView) ) { ImageView iv = (ImageView) view; byte[] img = cursor.getBlob(columnIndex); iv.setImageBitmap(BitmapFactory.decodeByteArray(img, 0, img.length)); return true; } return false; } } // data package com.android.Fruits2; import android.graphics.Bitmap; public class PersonData { private Bitmap bmp; private String name; private int age; private String study; public PersonData(Bitmap b, String n, int k, String v) { bmp = b; name = n; age = k; study = v; } public Bitmap getBitmap() { return bmp; } public String getName() { return name; } public int getAge() { return age; } public String getStudy() { return study; } } //dbhelper package com.android.Fruits2; import java.io.ByteArrayOutputStream; import android.content.ContentValues; import android.content.Context; import android.database.sqlite.SQLiteDatabase; import android.database.sqlite.SQLiteOpenHelper; import android.graphics.Bitmap; import android.provider.BaseColumns; public class DBhelper { public static final String KEY_ID = BaseColumns._ID; public static final String KEY_NAME = "name"; public static final String KEY_AGE = "age"; public static final String KEY_STUDY = "study"; public static final String KEY_IMG = "image"; private DatabaseHelper mDbHelper; private SQLiteDatabase mDb; private static final String DATABASE_NAME = "PersonalDB"; private static final int DATABASE_VERSION = 1; public static final String PERSON_TABLE = "Person"; private static final String CREATE_PERSON_TABLE = "create table "+PERSON_TABLE+" (" +KEY_ID+" integer primary key autoincrement, " +KEY_IMG+" blob not null, " +KEY_NAME+" text not null , " +KEY_AGE+" integer not null, " +KEY_STUDY+" text not null);"; private final Context mCtx; private boolean opened = false; private static class DatabaseHelper extends SQLiteOpenHelper { DatabaseHelper(Context context) { super(context, DATABASE_NAME, null, DATABASE_VERSION); } public void onCreate(SQLiteDatabase db) { db.execSQL(CREATE_PERSON_TABLE); } public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { db.execSQL("DROP TABLE IF EXISTS "+PERSON_TABLE); onCreate(db); } } public void Reset() { openDB(); mDbHelper.onUpgrade(this.mDb, 1, 1); closeDB(); } public DBhelper(Context ctx) { mCtx = ctx; mDbHelper = new DatabaseHelper(mCtx); } private SQLiteDatabase openDB() { if(!opened) mDb = mDbHelper.getWritableDatabase(); opened = true; return mDb; } public SQLiteDatabase getHandle() { return openDB(); } private void closeDB() { if(opened) mDbHelper.close(); opened = false; } public void createPersonEntry(PersonData about) { openDB(); ByteArrayOutputStream out = new ByteArrayOutputStream(); about.getBitmap().compress(Bitmap.CompressFormat.PNG, 100, out); ContentValues cv = new ContentValues(); cv.put(KEY_IMG, out.toByteArray()); cv.put(KEY_NAME, about.getName()); cv.put(KEY_AGE, about.getAge()); cv.put(KEY_STUDY, about.getStudy()); mDb.insert(PERSON_TABLE, null, cv); closeDB(); } } //data.xml <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="wrap_content"> <ImageView android:id = "@+id/img" android:layout_width = "wrap_content" android:layout_height = "wrap_content" > </ImageView> <TextView android:id = "@+id/name" android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:textSize="15dp" android:textColor="#ff0000" > </TextView> <TextView android:id = "@+id/age" android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:textSize="15dp" android:textColor="#ff0000" /> <TextView android:id = "@+id/study" android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:textSize="15dp" android:textColor="#ff0000" /> </LinearLayout> When I run this in android 1.6 and 2.1, it works. But when I run in android 1.5, not work. My application is android 1.5. Please correct and send code to me. Thank you.

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  • insert an image in a tablelayout without streching it android

    - by Sephy
    Hi, I'm having some trouble getting pictures inside a tablelayout...actually, each I have 2 columns and when i put a picture in a cell of the table, it's completely streched and disproportionnated...I can't find how to make it stay it's original inside the cell and let the rest of the space filled by white background for instance.... XML is like that : <TableLayout android:layout_width="fill_parent" android:stretchColumns="*" android:layout_marginLeft="3dip" android:layout_marginRight="10dip" android:layout_height="wrap_content"> <TableRow android:layout_marginBottom="10dip"> <TextView android:id="@+id/tv01" android:text="text1" android:textSize="14sp" android:layout_margin="1dip" android:layout_height="wrap_content" android:textColor="@color/bleuLink" android:layout_width="wrap_content" android:layout_weight="1" android:background="@color/background"></TextView> <Button android:id="@+id/add" android:background="@drawable/addressbook" android:layout_height="wrap_content" android:layout_width="wrap_content"></Button> <Button android:id="@+id/call" android:background="@drawable/greenphone" android:layout_height="wrap_content" android:layout_width="wrap_content"></Button> help plz, thx

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