ImageView Bild Speichern

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
androidrientation="vertical"
androidaddingBottom="@dimen/activity_vertical_margin"
androidaddingLeft="@dimen/activity_horizontal_margin"
androidaddingRight="@dimen/activity_horizontal_margin"
androidaddingTop="@dimen/activity_vertical_margin"
tools:context=".ShowOverview" >

<ImageView
android:id="@+id/imageView1"
android:layout_width="130dp"
android:layout_height="130dp"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:layout_alignParentTop="true"
android:layout_marginEnd="84dp"
android:layout_marginRight="84dp"
android:layout_marginTop="47dp"
android:contentDescription="@string/image"
android:src="@android:drawable/ic_menu_gallery" />

<Button
android:id="@+id/button1"
android:layout_width="130dp"
android:layout_height="130dp"
android:layout_alignTop="@+id/imageView1"
android:layout_centerHorizontal="true"
android:alpha="0.0"
android:text="@string/image" />

</RelativeLayout>



public class ShowOverview extends ActionBarActivity implements OnClickListener{

private Button button;
private static Bitmap Image = null;
private ImageView imageView;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_show_overview);

Bitmap bitmap;
bitmap = BitmapFactory.decodeResource(getResources(), R.drawable.pic3);

imageView = (ImageView) findViewById(R.id.imageView1);
imageView.setImageBitmap(bitmap);
button = (Button) findViewById(R.id.button1);
button.setOnClickListener(this);
}

@Override
public void onClick(View v) {
Intent intent = new Intent();
intent.setAction(android.content.Intent.ACTION_GET_CONTENT);
intent.setType("image/*");
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);

}

}