<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:tools="http://schemas.android.com/tools"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="vertical"

    tools:context=".MainActivity" >

    <ImageView

        android:id="@+id/iv_1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        />

    <ImageView

        android:id="@+id/iv_2"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

         />

</LinearLayout>

public class MainActivity extends Activity {

    private ImageView iv1;

    private ImageView iv2;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        iv1 = (ImageView) findViewById(R.id.iv_1);

        iv2 = (ImageView) findViewById(R.id.iv_2);

        // 设置第一个bitmap的图标

        Bitmap bitmap1 = BitmapFactory.decodeResource(getResources(),

                R.drawable.ic_launcher);

        iv1.setImageBitmap(bitmap1);

        // 新建一个bitmap

        Bitmap alterBitmap = Bitmap.createBitmap(bitmap1.getWidth(),

                bitmap1.getHeight(), bitmap1.getConfig());

        // 以alterBitmap为模板新建画布

        Canvas canvas = new Canvas(alterBitmap);

        // 新建画笔并设置属性

        Paint paint = new Paint();

        paint.setColor(Color.BLACK);

        //新建矩阵并设置缩放值

        Matrix matrix = new Matrix();

        matrix.setValues(new float[] {

                0.5f, 0, 0,

                0, 1, 0,

                0, 0, 1

        });

        //设置画布

        canvas.drawBitmap(bitmap1, matrix, paint);

        iv2.setImageBitmap(alterBitmap);

    }

}