CustomMapView.java

package org.osmdroid.samplefragments.layouts;

import android.content.Context;
import android.os.Handler;
import android.util.AttributeSet;
import android.view.MotionEvent;

import org.osmdroid.tileprovider.MapTileProviderBase;
import org.osmdroid.views.MapView;

/**
 * The only delta with this class vs the standard mapview is that it overcomes some of the issues
 * with the map view being inside of some kind of container which allows scrolling, such as
 * scroll view
 * recycler/card view
 *
 *
 * created on 1/3/2017.
 *
 * @author Alex O'Ree
 */

public class CustomMapView extends MapView {


    public CustomMapView(Context context, MapTileProviderBase tileProvider, Handler tileRequestCompleteHandler, AttributeSet attrs) {
        super(context, tileProvider, tileRequestCompleteHandler, attrs);
    }

    public CustomMapView(Context context, MapTileProviderBase tileProvider, Handler tileRequestCompleteHandler, AttributeSet attrs, boolean hardwareAccelerated) {
        super(context, tileProvider, tileRequestCompleteHandler, attrs, hardwareAccelerated);
    }

    public CustomMapView(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    public CustomMapView(Context context) {
        super(context);
    }

    public CustomMapView(Context context, MapTileProviderBase aTileProvider) {
        super(context, aTileProvider);
    }

    public CustomMapView(Context context, MapTileProviderBase aTileProvider, Handler tileRequestCompleteHandler) {
        super(context, aTileProvider, tileRequestCompleteHandler);
    }

    @Override
    public boolean onTouchEvent(MotionEvent ev) {
        int action = ev.getAction();
        switch (action) {
            case MotionEvent.ACTION_DOWN:
                // Disallow ScrollView to intercept touch events.
                this.getParent().requestDisallowInterceptTouchEvent(true);
                break;

            case MotionEvent.ACTION_UP:
                // Allow ScrollView to intercept touch events.
                this.getParent().requestDisallowInterceptTouchEvent(false);
                break;
        }

        // Handle MapView's touch events.
        return super.onTouchEvent(ev);

    }
}