Android program dynamic setting of ImageView brightness

Without further ado, I will post the code directly to you.

// Method of changing the brightness of the picture  0-- The same  >0--- The bright  <0--- dim 
  private void changeLight(ImageView imageView, int brightness) {
    ColorMatrix cMatrix = new ColorMatrix();
    cMatrix.set(new float[] { 1, 0, 0, 0, brightness, 0, 1, 0, 0,
        brightness,//  Change the brightness 
        0, 0, 1, 0, brightness, 0, 0, 0, 1, 0 });
    imageView.setColorFilter(new ColorMatrixColorFilter(cMatrix));
  } 

Well, the code is relatively simple, I hope to help you.