OSMDROID displays multiple maps with polylines in Android

问题

I see multiple maps with polyline when I start my android application. How can I show only one map?

MainActivity:

public class MainActivity extends AppCompatActivity {

    MapView map;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        Context ctx = getApplicationContext();
        Configuration.getInstance().load(ctx,    PreferenceManager.getDefaultSharedPreferences(ctx));
        setContentView(R.layout.activity_main);



       map = findViewById(R.id.mapViewMain);
       map.setTileSource(TileSourceFactory.DEFAULT_TILE_SOURCE);
       map.setBuiltInZoomControls(true);
       map.setMultiTouchControls(true);

    }

    protected void onResume() {
        super.onResume();       
        map.onPause();  
    }

    protected void onPause() {
        super.onPause();
        map.onPause();
    }


}

Layout activity_main:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <org.osmdroid.views.MapView
        android:id="@+id/mapViewMain"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />
</LinearLayout>

I want to see only one map on my device.

回答1:

I solved that with this:

MapView map = (MapView) findViewById(R.id.map);
map.setScrollableAreaLimitDouble(new BoundingBox(85, 180, -85, -180));
map.setMaxZoomLevel(20.0);
map.setMinZoomLevel(4.0);
map.setHorizontalMapRepetitionEnabled(false);
map.setVerticalMapRepetitionEnabled(false);
map.setScrollableAreaLimitLatitude(MapView.getTileSystem().getMaxLatitude(), MapView.getTileSystem().getMinLatitude(), 0);

回答2:

Your code is correct and you actually see only one map - meaning only on map component. The map is zoomed out too much and is smaller then the view. The osmdroid library solves this problem by repeating the map in the viewport. I don't think there is a way to turn this feature off.

You can solve the problem by setting some reasonable zoom level.

map.setZoomLevel(12)

回答3:

MapView map;
map.setHorizontalMapRepetitionEnabled(true);
map.setVerticalMapRepetitionEnabled(false);
map.setScrollableAreaLimitLatitude(MapView.getTileSystem().getMaxLatitude(), MapView.getTileSystem().getMinLatitude(), 0);

来源：https://stackoverflow.com/questions/52212951/osmdroid-displays-multiple-maps-with-polylines-in-android

标签

android

maps

osmdroid