make map zoom in scrollview

// <RelativeLayout // android:id="@+id/map_layout" // android:layout_width="match_parent" // android:layout_height="300dp"> // <fragment // android:id="@+id/mapview" // android:layout_width="match_parent" // android:layout_height="match_parent" // android:layout_marginTop="-100dp" // android:layout_marginBottom="-100dp" // android:name="com.google.android.gms.maps.MapFragment"/> // <ImageView // android:id="@+id/transparent_image" // android:layout_width="match_parent" // android:layout_height="match_parent" // android:src="@color/transparent" /> // </RelativeLayout> ScrollView mainScrollView = (ScrollView) findViewById(R.id.main_scrollview); ImageView transparentImageView = (ImageView) findViewById(R.id.transparent_image); transparentImageView.setOnTouchListener(new View.OnTouchListener() { @Override public boolean onTouch(View v, MotionEvent event) { int action = event.getAction(); switch (action) { case MotionEvent.ACTION_DOWN: // Disallow ScrollView to intercept touch events. mainScrollView.requestDisallowInterceptTouchEvent(true); // Disable touch on transparent view return false; case MotionEvent.ACTION_UP: Allow ScrollView to intercept touch events. mainScrollView.requestDisallowInterceptTouchEvent(false); return true; case MotionEvent.ACTION_MOVE: mainScrollView.requestDisallowInterceptTouchEvent(true); return false; default: return true; } } });