Android merge two images

Question

I want to merge two images and then save them on the Android SDCard.One is from the camera and one from the resources folder. The problem is that i get this error: Caused by: ja

Answer 1

This will help you =)

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Edit: (embed answer from link)

the only static "constructor" for Bitmap returning a mutable one is:

(Class: Bitmap) public static Bitmap createBitmap(int width, int height, boolean hasAlpha)
Returns: a mutable bitmap with the specified width and height.

• So you could work with getPixels/setPixels or like this:

  Bitmap bitmapResult = bm.createBitmap(widthOfOld, heightOfOld, hasAlpha);
  Canvas c = new Canvas();
  c.setDevice(bitmapResult); // drawXY will result on that Bitmap
  c.drawBitmap(bitmapOld, left, top, paint);
  

• how to get the drawable from Bitmap: by using the BitmapDrawable-Subclass which extends Drawable, like this:

  Bitmap myBitmap = BitmapFactory.decode(path);
  Drawable bd = new BitmapDrawable(myBitmap);
  

Answer 2

The bitmap you are retrieving is immutable, meaning it can't be modified. Although it doesn't specify on the Canvas page that the constructor needs a mutable bitmap, it does.

To create a mutable bitmap, you can use this method.