android - error with setPixels

Question

i am trying to edit images. but i am getting errors with setPixels.

        picw = pic.getWidth();
        pich = pic.getHeight();
        picsize = picw*pich;        
        int[] pix = new int [picsize];
        pic.getPixels(pix, 0, picw, 0, 0, picw, pich);  
        pic.setPixels(pix,0,pic.getWidth(),0,0,pic.getWidth(),pic.getHeight());

but i am getting illegal state exception with setPixels

Caused by: java.lang.IllegalStateException
  at android.graphics.Bitmap.setPixels(Bitmap.java:878)
  at com.sandyapps.testapp.testapp.onCreate(testapp.java:66)

Answer 1

I think your Bitmap is not mutable (see setPixel()'s documentation).

If so, create a mutable copy of this Bitmap (using Bitmap.copy(Bitmap.Config config, boolean isMutable) as an example) and work on this one.