Java tutorial
//package com.java2s; import android.app.Activity; import android.graphics.Bitmap; import android.graphics.Canvas; import android.view.View; public class Main { public static Bitmap getScreenshotsForCurrentWindow(Activity activity) { View cv = activity.getWindow().getDecorView(); Bitmap bmp = Bitmap.createBitmap(cv.getWidth(), cv.getHeight(), Bitmap.Config.ARGB_4444); cv.draw(new Canvas(bmp)); return bmp; } }