I was looking for a way how to extract the pixel value (RGB) of a selected (x,y) from my screen
(My display countains many images, not only the background)
thanks
- The solutions is here: stackoverflow.com/questions/6272859/…eleven– eleven2014-04-13 14:16:08 +00:00Commented Apr 13, 2014 at 14:16
- i have already checked it, but i didn't find how to get the valuesOmar_0x80– Omar_0x802014-04-13 14:20:52 +00:00Commented Apr 13, 2014 at 14:20
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1 Answer
First of all you need the root container of your activity. Suppose xml of your activity looks like this:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/container" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent"> <!-- All your stuff--> </RelativeLayout> Then in the activity find the root and using jkhouw1 method get Bitmap which has method getPixel:
@Override protected void onCreate(Bundle savedInstanceState) { //... View container = findViewById(R.id.container); Bitmap bitmap = loadBitmapFromView(container); int pixel = bitmap.getPixel(100, 100); int r = Color.red(pixel); int b = Color.blue(pixel); int g = Color.green(pixel); } public static Bitmap loadBitmapFromView(View v) { Bitmap b = Bitmap.createBitmap( v.getLayoutParams().width, v.getLayoutParams().height, Bitmap.Config.ARGB_8888); Canvas c = new Canvas(b); v.layout(0, 0, v.getLayoutParams().width, v.getLayoutParams().height); v.draw(c); return b; } 
