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  • Return back to the parent activity from subactivity

    - by ZelluX
    My application supports twitter and needs to open browser for OAuth. When the user clicks the Share on Twitter button, the main activity will create another subactivity (TwitterActivity) to handle twitter authentication issues. Here is a flow graph showing how activities are invoked currently. Main is short for MainActivity and Twit for TwitterActivity. startActivity() OAuth intent OAuth callback finish() Main ---------------> Twit ------------> Browser --------------> Twit --------> Browser As you may notice, after the TwitterActivity calls finish() to stop, it will now return back to MainActivity, but Browser instead. How can I make it return back to MainActivity? Many thanks

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  • Streaming Youtube Videos

    - by Vinay
    Hi All, I am writing an application to play the youtube videos using streaming. First method: I am getting the RTSP URL to the video using GData APIs. Here is the code to play the RTSP url. VideoView mVideoView = new VideoView(this); setContentView(mVideoView); mVideoView.setVideoURI(Uri.parse("rtsp://rtsp2.youtube.com/CiILENy73wIaGQkDwpjrUxOWQBMYESARFEgGUgZ2aWRlb3MM/0/0/0/video.3gp")); mVideoView.start(); But it throws error on both G1 device and emulator (Emulator has some firewall problem as per mailing list) Here is the error message ERROR/PlayerDriver(35): Command PLAYER_INIT completed with an error or info PVMFFailure Second method: A hack way to get the path of 3gp file from http://www.youtube.com/get_video?v=&t=<&<.. After getting the file path and I can call setVideoURI and it plays fine. But it is a hack way to achieve the requirement. I have checked the Youtube App also, it also does the hack way to play the youtube url.(Checked with logcat) I have tried changing from VideoView to MediaPlayer but no change in the error. Is there a "Clean" way to do this? Please let me know your thoughts.

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  • HTTPS with Self-Signed Certificate Issues... Solution or better way?

    - by stormin986
    All I need to do is download some basic text-based and image files from a web server that has a self-signed SSL certificate. I have been trying to figure out how to use HttpClient to do this, but getting the SSL to work is a nightmare that seems to be way too much trouble for such a simple task. Is there a better way to perform these file downloads? Perhaps through a WebView or Browser feature? Reinventing the wheel of making a simple HTTPS GET request is a major pain, and is significantly holding up my development schedule. ** Updated title to more accurately reflect question / solution **

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  • New Bluetooth API question

    - by Ralphz
    I have written a small app that puts my bluetooth in discoverable mode for a long time (G1 - API 1.6). I use that along with small program on windows to lock/unlock the computer if the phone is close by. Recently i try to port this app to my nexus one but it seems like i have to pop up the message every 300s to enable device to go to discoverable mode. does anyone know how i can suppress that? I'm ok with saying ok for the first time but not every 300s :)

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  • AlarmManager doesn't start the alarm on time

    - by user988635
    I try to use AlarmManager to setup an alarm that happens after some seconds from now. Here is my code: AlarmManager am = (AlarmManager)context.getSystemService(Context.ALARM_SERVICE); Intent intent = new Intent(ALARM_ACTION); PendingIntent alarmIntent = PendingIntent.getBroadcast(getBaseContext(), 0, intent, PendingIntent.FLAG_UPDATE_CURRENT); Calendar rightNow = Calendar.getInstance(); rightNow.add(Calendar.SECOND, NumOfSecond); am.set(AlarmManager.RTC, rightNow.getTimeInMillis(), alarmIntent); For example, if rightNow is 8:00AM and I hope my alarm happens after 14400 seconds, that is 12:00PM, so NumOfSecond will be set as 14400. But when the code runs what happens is the alarm not always happens exactly at 12:00PM, sometimes it will be delayed by 1 or 2 minutes, or even 5 minutes! Does any one know what the heck is happened here?

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  • Methods : Make my method with many input variables with out overloading

    - by Jack Jon
    is there Any Way To Make my Method Take many input variable but with out overloading ... could be my question not clear ... I mean Like That : if I Have This Method public void setValues (int val1,int val2 ,String val3){ } what I want is : use this method with many way setValues (val1,val2) OR setValues (val3) why I want to do that with out overloading : Because if i have as example 10 variable i want to add many method with overloading but i don't like that ... is there any way helps me to check variable or skip it in the same method .. Thanks for help .

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  • Adding configChanges ="locale" programatically

    - by chrisonline
    I use configChanges="locale" on my activities. Without this options in AndroidManifest.xml in 2.x i get flickering screens. It works in all my activities excepting in the preferences screen i add programatically. I have one Preference Activity -- it works after setting configChanges="locale" to the AndroidManifest.xml. Inside of the Preference Activity i add programatically a new preferencescreen. For this new PreferenceScreen i dont have an activity in the AndroidManifest.xml! So i cannot add the configChanges="locale" and the screen flickers on 2.x !! How can i add the attribute configChanges="locale" programatically?

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  • What's the best way to check if the view is visible on the window?

    - by bhups
    What's the best way to check if the view is visible on the window? I have a CustomView which is part of my SDK and anybody can add CustomView to their layouts. My CustomView is taking some actions when it is visible to the user periodically. So if view becomes invisible to the user then it needs to stop the timer and when it becomes visible again it should restart its course. But unfortunately there is no certain way of checking if my CustomView becomes visible or invisible to the user. There are few things that I can check and listen to: onVisibilityChange //it is for view's visibility change, and is introduced in new API 8 version so has backward compatibility issue onWindowVisibilityChange //but my CustomView can be part of a ViewFlipper's Views so it can pose issues onDetachedFromWindows //this not as useful onWindowFocusChanged //Again my CustomView can be part of ViewFlipper's views. So if anybody has faced this kind of issues please throw some light.

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  • Issue calling superclass method in subclass constructor

    - by stormin986
    I get a NullPointerException calling a Superclass Method in Subclass Inner Class Constructor... What's the Deal? In my application's main class (subclass of Application), I have a public inner class that simply contains 3 public string objects. In the parent class I declare an object of that inner class. public class MainApplication extends Application { public class Data { public String x; public String y; public String z; } private Data data; MainApplication() { data = new Data() data.x = SuperClassMethod(); } } After I instantiate the object in the constructor, I get a runtime error when I try to assign a value in the inner class with a superclass method. Any idea what's up here?? Can you not call superclass methods in the subclass constructor? ** Edit ** Original question was about inner class member assignment in outer class constructor. Turned out the issue was with calling a superclass method in the class's constructor. It was giving me a null pointer exception. Thus, the question has changed.

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  • Determine if a specific activity in an application can be launched...

    - by Justin
    Applications can have any number of launchable activities. I know how to get the list of these activities via PackageManager. Is there a way to determine which activities can be launched via startActivity? For example, the Documents To Go app has different activities that will start Word, Excel, Powerpoint, PDF, etc... I am able to launch all o these just fine. However, it also contains some activities that I am not able to launch with startActivity... If I attempt to do this I get a SecurityException. I want to be able to determine which activities I can safely launch and which I cannot so I only present the user with a list of activities that I can safely launch from within my application... Is this possible?

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  • White dialog theme

    - by Al
    I've noticed some apps have a dialog with white background, including along the title border, as opposed to the default black. I know how to make the background white but the whiteness doesn't extend to the dialog's title border. This image: http://localhostr.com/files/25bb19/tether.png is an example of how I want the dialog to look. Anyone know I can do this? I mainly use AlertDialog.Builder to make my dialogs so ideally something I can easily to that.

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  • Loading a Browser Page in the Background

    - by stormin986
    I have a tabbed interface (one activity per tab) where one tab will be a browser view displaying a webpage. The application loads in a different activity / view, but I want it to begin to download the webpage in the background as soon as the app launches, before the user ever clicks on that tab and initiates that activity. How can I do this? Thanks! -S

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  • GoogleAuthUtil: Daily Limit for Unauthenticated Use Exceeded

    - by Copa
    I am using the Google Client API and the GoogleAuthUtil.class to get access to the user's Google Drive Account. String scope = "oauth2:" + DriveScopes.DRIVE; String token = GoogleAuthUtil.getToken(getContext(), account.name, scope); This is the whole magic. It worked the whole day but since a couple of hours I receive the following message when sending API calls: com.google.api.client.googleapis.json.GoogleJsonResponseException: 403 Forbidden { "code": 403, "errors": [ { "domain": "usageLimits", "message": "Daily Limit for Unauthenticated Use Exceeded. Continued use requires signup.", "reason": "dailyLimitExceededUnreg", "extendedHelp": "https://code.google.com/apis/console" } ], "message": "Daily Limit for Unauthenticated Use Exceeded. Continued use requires signup." } I dont know how to use a API Key from the console instead of an oauth2 authentication. There are two different "getToken()" messages. One has four parameters and the description for the last one says: extras: Bundle containing additional information that may be relevant to the authentication scope. But what do these information should look like? What informations do I have to put in the Bundle?

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  • Most cost effective way to target multiple mobile platforms

    - by niidto
    Hi I have been given the tasks of speccing a mobile application, which will need to run on approx. 1000 devices. These devices already exist, and consist of iPhones, BlackBerrys, Androids, Windows Mobile and Netbooks. The application will have simple reporting capability, and a collection of forms. Anyway, the obvious solution would be to develop some browser based solution, although given the occasionally connected nature of the devices, there's a potential for data to get lost / not saved. So instead of creating a complex application for each platform, I was thinking we could build what is effectively a form generator, with basic offline storage capability (text files), designed to run on each device, and have the device generate a form, based on for example an XML file that it could request from a server somewhere, resulting in minimal specialist development costs, and the ability to run most of the logic from the server end, with the devices being dumb clients that render forms and upload the data when there is an available connection. Anyway, my question summarised is, how have you made the decision on supporting multiple devices for your application. Is this always an unavoidable problem, and you just have to make the call to support 1 or 2, or pay for developers to write code for each platform, or alternatively supply pre-installed devices to the company? Many thanks James

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  • Apply Quaternion to Camera in libGDX

    - by Alex_Hyzer_Kenoyer
    I am trying to rotate my camera using a Quaternion in libGDX. I have a Quaternion created and being manipulated but I have no idea how to apply it to the camera, everything I've tried hasn't moved the camera at all. Here is how I set up the rotation Quaternion: public void rotateX(float amount) { tempQuat.set(tempVector.set(1.0f, 0.0f, 0.0f), amount * MathHelper.PIOVER180); rotation = rotation.mul(tempQuat); } public void rotateY(float amount) { tempQuat.set(tempVector.set(0.0f, 1.0f, 0.0f), amount * MathHelper.PIOVER180); rotation = tempQuat.mul(rotation); } Here is how I am trying to update the camera (Same update method as the original libGDX version but I added the part about the rotation matrix to the top): public void update(boolean updateFrustum) { float[] matrix = new float[16]; rotation.toMatrix(matrix); Matrix4 m = new Matrix4(); m.set(matrix); camera.view.mul(m); //camera.direction.mul(m).nor(); //camera.up.mul(m).nor(); float aspect = camera.viewportWidth / camera.viewportHeight; camera.projection.setToProjection(Math.abs(camera.near), Math.abs(camera.far), camera.fieldOfView, aspect); camera.view.setToLookAt(camera.position, tempVector.set(camera.position).add(camera.direction), camera.up); camera.combined.set(camera.projection); Matrix4.mul(camera.combined.val, camera.view.val); if (updateFrustum) { camera.invProjectionView.set(camera.combined); Matrix4.inv(camera.invProjectionView.val); camera.frustum.update(camera.invProjectionView); } }

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  • how to find end of scroll value for HorizontalScrollView

    - by DroidCoder
    i need to implement following scenario, here i have two horizontalScrollViews the upper scrollView is a main menu and lower scrollView is a submenu. when i scroll main menu,the menu which comes under center arrow will show its submenu in lower scrollview and from the lower scrollview, the submenu which comes under center arrow shows the screen for that sub-menu. here's my requirement: i've implemented it using HorizontalScrollViews and ViewFlipper and also it works but it will give correct result only when i scroll it slowly and not when scroll fast. i've used onTouch() method with a ACTION_UP event,so when i release finger from screen it will gives me getScrollX() position at that point but here i need getScrollX() position when scroll is finished/stop. here's my code:- @Override public boolean onTouch(View v, MotionEvent event) { switch (v.getId()) { case R.id.mHorizontalScrollViewMain: if (event.getAction() == KeyEvent.ACTION_UP) { Log.d("test", " " + hsvUpperTab.getScrollX() + " , "+ mViewFlipper.getChildCount()); getUpperTabScrolled(hsvUpperTab.getScrollX()); } break; case R.id.mHorizontalScrollViewSub: if (event.getAction() == KeyEvent.ACTION_UP) { Log.d("test1", " " + hsvLowerTab.getScrollX()); getLowerTabScrolled(hsvLowerTab.getScrollX()); } default: break; } return false; }

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  • How can a link within a WebView load another layout using javascript?

    - by huffmaster
    So I have 2 layout files (main.xml, featured.xml) and both each have a single WebView. When the application starts "main.xml" loads a html file into it's WebView. In this html file I have a link that calls javascript that runs code in the Activity that loaded the html. Once back in this Activity code though I try running setContentView(R.layout.featured) but it just bombs out on me. If I debug it just dies without any real error and if I run it the application just Force closes. Am I going about this correctly or should I be doing something differently? final private int MAIN = 1; final private int FEATURED = 2; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); webview = (WebView) findViewById(R.id.wvMain); webview.getSettings().setJavaScriptEnabled(true); webview.getSettings().setSupportZoom(false); webview.addJavascriptInterface(new EHJavaScriptInterface(), "eh"); webview.loadUrl("file:///android_asset/default.html"); } final class EHJavaScriptInterface { EHJavaScriptInterface() { } public void loadLayout(final String lo) { int i = Integer.parseInt(lo.trim()); switch (i) { /****** THIS IS WHERE I'M BOMBING OUT *********/ case FEATURED: setContentView(R.layout.featured);break; case MAIN: setContentView(R.layout.main);break; } } }

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  • How to make a mutable ItemizedOverlay

    - by Hamy
    Hey all, I would like to make a Google map overlay with changable pins. An easy way to visualize this would be to think of a near real time overlay, where the pins are constantly changing location. However, I can't seem to think of a safe way to do this with the ItemizedOverlay. The problem seems to be the call to populate - If size() is called by some maps thread, and then my data changes, then the result when the maps call accesses getItem() can be an IndexOutOfBoundsException. Can anyone think of a better solution than overloading populate and wrapping super.populate in a synchronized block? Perhaps I could get better luck using a normal Overlay? The Itemized one seems to exist to manage the data for you, perhaps I am making a fundamental mistake by using it? Thanks for any help, my brain is hurting! Hamy

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  • parser 2.1 and 2.2

    - by yaniv
    hi i using the follwing Code to retrive XML element text using getElementsByTagName this code success in 2.2 and Failed in 2.1 any idea ? URL metafeedUrl = new URL("http://x..../Y.xml") URLConnection connection ; connection= metafeedUrl.openConnection(); HttpURLConnection httpConnection = (HttpURLConnection)connection ; int resposnseCode= httpConnection.getResponseCode() ; if (resposnseCode == HttpURLConnection.HTTP_OK) { InputStream in = httpConnection.getInputStream(); DocumentBuilderFactory dbf ; dbf = DocumentBuilderFactory.newInstance(); DocumentBuilder db = dbf.newDocumentBuilder(); // Parse the Earthquakes entry Document dom = db.parse(in); Element docEle = dom.getDocumentElement(); //ArrayList<Album> Albums = new ArrayList<Album>(); /* Returns a NodeList of all descendant Elements with a given tag name, in document order.*/ NodeList nl = docEle.getElementsByTagName("entry"); if (nl!=null && nl.getLength() > 0) { for (int i = 0; i < nl.getLength(); i++) { Element entry = (Element)nl.item(i); /* Now on every property in Entry **/ Element title =(Element)entry.getElementsByTagName("title").item(0); *Here i Get an Error* String album_Title = title.getTextContent(); Element id =(Element)entry.getElementsByTagName("id").item(0); String album_id = id.getTextContent(); //

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