Rotate a Bitmap : Bitmap « 2D Graphics « Android






  1. Android
  2. 2D Graphics
  3. Bitmap

Rotate a Bitmap

    
import android.graphics.Bitmap;
import android.graphics.Matrix;

class Utility {

  public static Bitmap rotate(Bitmap b, int degrees) {
    if (degrees != 0 && b != null) {
      Matrix m = new Matrix();
      m.setRotate(degrees, (float) b.getWidth() / 2,
          (float) b.getHeight() / 2);

      Bitmap b2 = Bitmap.createBitmap(b, 0, 0, b.getWidth(),
          b.getHeight(), m, true);
      if (b != b2) {
        b.recycle();
        b = b2;
      }

    }
    return b;
  }

}








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