使用Matrix 显示旋转和缩放后的图片

//旋转
ImageView image = (ImageView) findViewById(R.id.image);
Matrix matrix = new Matrix();
Bitmap bitmap = ((BitmapDrawable)getResources().getDrawable(R.drawable.jz)).getBitmap();
matrix.setRotate(30);
bitmap = bitmap.createBitmap(bitmap,0,0,bitmap.getWidth(),bitmap.getHeight(),matrix,true);
image.setImageBitmap(bitmap);

//缩放

ImageView image = (ImageView) findViewById(R.id.image);
Matrix matrix = new Matrix();
Bitmap bitmap = ((BitmapDrawable)getResources().getDrawable(R.drawable.jz)).getBitmap();
//matrix.setRotate(30);
matrix.setScale(0.5f,0.5f);
bitmap = bitmap.createBitmap(bitmap,0,0,bitmap.getWidth(),bitmap.getHeight(),matrix,true);
image.setImageBitmap(bitmap);