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  • Rotated image in ImageView

    - by Lars D
    I want to show an arrow that indicates the direction towards a goal, using the orientation sensor and current GPS position. Everything works well, except that I want to rotate the arrow image in my ImageView. The current code, which shows the arrow pointing upwards, is this: ImageViewArrow.setImageResource(R.drawable.arrow); What is the best solution for showing the arrow, rotated by N degrees?

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  • How can I set an intent's class from a string value?

    - by twaxwei
    I am trying to set the class for an intent to the address listed in a string value, so that I can launch a given activity. The string is composed dynamically during runtime. Is there anyway to make something like the code below run: String target=com.test.activity1.class; Intent intent=new intent(); intent.setClass(this, target); Thanks

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  • How do I Capture native (Menu) button presses in PhoneGap?

    - by Dinedal
    By calling "BackButton.override();" and then hooking on to the backKeyDown event, I am able to get the back button press to register. But there doesn't appear to be a "MenuButton.override();" Also, hooking on the menuKeyDown doesn't register a button press. Here's my (non-functional) code. What am I missing? <script type="text/javascript" charset="utf-8" src="phonegap.js"></script> <script type="text/javascript" charset="utf-8"> document.addEventListener("deviceready", function() { alert('initialized'); }, false); document.addEventListener("menuKeyDown", function() { alert('menu_pressed'); // Never happens }, false); </script>

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  • Key Events in TabActivities?

    - by stormin986
    I have a TabActivity and want to catch and handle presses of HOME and BACK. Where do I need to catch these events? In my subclass of TabActivity I implement the following: @Override public boolean onKeyDown(int keyCode, KeyEvent event) { switch (keyCode) { // Code handling } return super.onKeyDown(keyCode, event); } Didn't work. So I placed a breakpoint on the switch statement line. But this function never gets called, whether I press volume up/down, menu, home, or back. Where do I need to catch these KeyEvents?

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  • How can I get zoom functionality for images?

    - by Janusz
    Is there a common way to show a big image and enable the user to zoom in and out and pan the image? Until now I found two ways: overwriting ImageView, that seems a little bit too much for such a common problem. using a webview but with less control over the overall layout etc.

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  • change background of an ImageView (the old image stays there!)

    - by nourdine
    how can I change the background of an ImageView from java? I have an ImageView and at a certain point I need to change the image that it displays (set in the styles). I tried to do it like this: placeHolder.setImageDrawable(myDrawb); but it looks like the old image remains there and it is partially covered but the new one (which in my case has different shape). hope you guys can help! cheers

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  • ListView Item Detail Screen: New or Same Activity?

    - by stormin986
    I have a listview where each item correlates to an instance of an item in an array. When the user selects an item, it will bring up a 'Details' page that reads and displays other data members of the list item. Would this be better implemented with the Details page as its own activity, or a new view within the same activity? Pros and cons of each? A new activity makes my job a little easier in terms of handling the 'back' button, but then I have the challenge of how do I pass the rest of the data structure to the new activity since I can't bundle it up (unless I serialize it).

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  • Play video in videoplayer using ffmpeg

    - by AndroidOptimist
    I am trying to play an video using ffmpeg. For this i referred ffmpeg-sample link wherein i can play my video successfully. Here the video is getting played as a bitmap image. Now i would like to play my video in mediaplayer by pressing a single play button with ffmpeg code. I googled this but i couldn't find an answer. Can u please help me in playing the video in player using ffmpeg (not using bitmaps).

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  • Call AsyncTask methods from another class/service (callbacks?)

    - by TiGer
    Hi, I was wondering if it's possible to call specific methods defined within the AsynTask class from another class and/or service ? In my specific case I have a Service playing some sounds, but the sound is selected from a List with available sounds... When a sounds is selected it is downloaded from my home server, this takes some time (not much, let's say around the 3-4 seconds, the sounds/effects aren't big in size)... So my problem at the moment is that I have a service to play those sounds, and when I select one I wanted to show a progressdialog... The way (if I understood correctly) is to use an AsyncTask, but the only thing the AsyncTask will do is telling my Service to play a specific sound from my server... So there is no "callback" from the service to the Asynctask... How can I achieve that ? How can I call a running AsyncTask, which sits in another class, and tell him all work is done and thus he can stop showing the ProgressDialog ? Or am I over-engineering it and there are other ways ? Thanks in advance...

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  • Calling SharedPrefences on AppWidget

    - by Rexx
    Hello all, I would like to know if there is an issue with calling a sharedPeference value on an appWidget provider class so i can use it for an update. I have this code which i call on a method in the appWidget provider class, but it keeps giving me compilation error and that i should create a method for it. this is the code: prefs = getSharedPreference("myPrefs", Context.MODE_PRIVATE); is this a known issue and is there any other way i can pass the value from my configuration class, if this is not possible. Thank you

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  • How to set the size of multiple buttons on content

    - by rob
    I am using three buttons along with the list view.These three buttons are added to the layout using the TableLayout and TableRow.The first button takes more space on content, so the other two becomes smaller in size than first one. When the application runs, it doesn't even show the two other buttons. How can I make the size of three buttons equal and display all of them when application runs?Give me some example please. Thanks

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  • How to create layout-small-land folder?

    - by codedeziner
    I want to create separate folders for my layouts, like this in my resource directory: layout-land layout-port this is ok, but this: layout-small-land layout-small-port or layout-land-small layout-port-small Results in: 'Invalid resource directory name' What gives?

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  • Scaling textSize in a TextView

    - by fiXedd
    Say I have a TextView of a particular size (doesn't really matter what... fill_parent, 20dip, whatever). Is it possible to tell the text to shrink/grow in size to fit the available space without doing a lot of math?

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  • Add menu option to SMS interface

    - by lq410
    Hi, I'm looking for a way to add a new custom menu item to the SMS interface. The idea is add an option like "Insert predefined message", and control the predefined message from other application. Is this possible?

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  • Why is MenuItem.AdapterContextMenuInfo null when my list view has a custom adapter?

    - by gregm
    My question: Before I go and use an OnLongClickListener, is there a better way to pass the "what was clicked to create this context menu" information when your list view has a custom adapter? Here are some details: Normally, my code can just do something like this: public boolean onContextItemSelected(MenuItem item) { AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo(); and then go on and be happy. However, ever since I introduced a custom adapter, item.getMenuInfo() is null. This is a big problem, because my code no longer knows which item was clicked. (My custom Adapter makes each list row a checkbox and a text view) I tried this but failed: Created my own special AdapterContextMenuInfo (called "HasAViewMenuInfo"), but when I pass it in this method, it ends up being null in the menu public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) { super.onCreateContextMenu(menu, v, new HasAViewMenuInfo(v));

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