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POAndroid - How to take screenshot programmatically
 

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  1. POAndroid - How to take screenshot programmatically
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    <p>I need to screenshots of Android device or emulator programmatically when my application is installed and running in the background for every 200 milliseconds and save the images in my computer. I have implemented this procedure using below code and works only when my application is in foreground. I want to take screenshots when my application is in background as well. Below is my code:</p> <pre><code>public static Bitmap takeScreenshot(Activity activity, int ResourceID) { Random r = new Random(); int iterator=r.nextInt(); String mPath = Environment.getExternalStorageDirectory().toString() + "/screenshots/"; View v1 = activity.getWindow().getDecorView().findViewById(ResourceID); v1.measure(MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED), MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED)); v1.layout(0, 0, v1.getMeasuredWidth(), v1.getMeasuredHeight()); v1.setDrawingCacheEnabled(true); final Bitmap bitmap = Bitmap.createBitmap(v1.getDrawingCache()); Bitmap resultBitmap = Bitmap.createScaledBitmap(bitmap, 640, 480, false); v1.setDrawingCacheEnabled(false); File imageFile = new File(mPath); imageFile.mkdirs(); imageFile = new File(imageFile+"/"+iterator+"_screenshot.png"); try { ByteArrayOutputStream bos = new ByteArrayOutputStream(); resultBitmap.compress(CompressFormat.PNG, 100, bos); byte[] bitmapdata = bos.toByteArray(); //write the bytes in file FileOutputStream fos = new FileOutputStream(imageFile); fos.write(bitmapdata); fos.flush(); fos.close(); } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } return bitmap; } </code></pre> <p>How can I implement the functionality of Refresh and Save buttons of Screencapture in <code>Devices -&gt; DDMS</code> programmatically? Can I achieve that?</p>
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    1. COIt would freak me out if this is even possible. Apps doing this raises serious security concerns.
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      1. USBlake Caldwell
    2. CO**This can not be done except if the phone is rooted (*kitkat*)**. As for the "serious security concerns", I think there are more serious security concerns somewhere else. It is not that of a big deal if app can request a permission to take a screenshot or so.
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      1. USSherif elKhatib
    3. COThis isn't a screenshot or so... It's a screenshot every 200ms. Essentially a 5 FPS video. This would easily capture everything done on the phone. Not arguing against doing it for my own use (making a video of an app) but giving a 3rd party app the permission to take screenshots would be a long rabbit hole to go down.
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      1. USJustin Smith
 

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