Menu
I have one of the new MapFragments in a ScrollView. Actually it's a SupportMapFragment, but anyway. It works, but there are two problems:
When scrolled, it leaves a black mask behind. The black covers exactly the area where the map was, except for a hole where the +/- zoom buttons were. See screenshot below. This is on Android 4.0.
The view doesn't use requestDisallowInterceptTouchEvent() when the user interacts with the map to prevent the ScrollView intercepting touches, so if you try to pan vertically in the map, it just scrolls the containing ScrollView. I could theoretically derive a view class MapView and add that functionality, but how can I get MapFragment to use my customised MapView instead of the standard one?
671
public class MapFragment extends Fragment. A Map component in an app. This fragment is the simplest way to place a map in an application. It's a wrapper around a view of a map to automatically handle the necessary life cycle needs.
In Android, a ScrollView is a view group that is used to make vertically scrollable views. A scroll view contains a single direct child only. In order to place multiple views in the scroll view, one needs to make a view group(like LinearLayout) as a direct child and then we can define many views inside it.
A View which displays a map (with data obtained from the Google Maps service). When focused, it will capture keypresses and touch gestures to move the map.
A view group that allows the view hierarchy placed within it to be scrolled. Scroll view may have only one direct child placed within it. To add multiple views within the scroll view, make the direct child you add a view group, for example LinearLayout , and place additional views within that LinearLayout.
Applying a transparent image over the mapview fragment seems to resolve the issue. It's not the prettiest, but it seems to work. Here's an XML snippet that shows this:
<RelativeLayout android:id="@+id/relativeLayout1" android:layout_width="match_parent" android:layout_height="300dp" > <fragment android:id="@+id/map" android:name="com.google.android.gms.maps.MapFragment" android:layout_width="fill_parent" android:layout_height="fill_parent"/> <ImageView android:id="@+id/imageView123" android:layout_width="match_parent" android:layout_height="match_parent" android:src="@drawable/temp_transparent" /> </RelativeLayout> If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
