Resize and Rotate Image - Example

how to rotate ans resize images(Bitmaps) using a Matrix.

public class bitmaptest extends Activity { 
    @Override 
    public void onCreate(Bundle icicle) { 
        super.onCreate(icicle); 
        LinearLayout linLayout = new LinearLayout(this); 
        
        // load the origial BitMap (500 x 500 px) 
        Bitmap bitmapOrg = BitmapFactory.decodeResource(getResources(), 
               R.drawable.android); 
        
        int width = bitmapOrg.width(); 
        int height = bitmapOrg.height(); 
        int newWidth = 200; 
        int newHeight = 200; 
        
        // calculate the scale - in this case = 0.4f 
        float scaleWidth = ((float) newWidth) / width; 
        float scaleHeight = ((float) newHeight) / height; 
        
        // createa matrix for the manipulation 
        Matrix matrix = new Matrix(); 
        // resize the bit map 
        matrix.postScale(scaleWidth, scaleHeight); 
        // rotate the Bitmap 
        matrix.postRotate(45); 

        // recreate the new Bitmap 
        Bitmap resizedBitmap = Bitmap.createBitmap(bitmapOrg, 0, 0, 
                          width, height, matrix, true); 
    
        // make a Drawable from Bitmap to allow to set the BitMap 
        // to the ImageView, ImageButton or what ever 
        BitmapDrawable bmd = new BitmapDrawable(resizedBitmap); 
        
        ImageView imageView = new ImageView(this); 
        
        // set the Drawable on the ImageView 
        imageView.setImageDrawable(bmd); 
      
        // center the Image 
        imageView.setScaleType(ScaleType.CENTER); 
        
        // add ImageView to the Layout 
        linLayout.addView(imageView, 
          new LinearLayout.LayoutParams( 
                      LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT 
                ) 
        ); 
        
        // set LinearLayout as ContentView 
        setContentView(linLayout); 
    } 
}