OSMDroid offline map : exception with blank map on android device "fail to read directory on sdcard"

Question

       MapView mapView = new MapView(this, 256); //constructor
       mapView.setClickable(true);
       mapView.setBuiltInZoomControls(true);
       setContentView(mapView); //displaying the MapView
       mapView.setTileSource(TileSourceFactory.MAPQUESTOSM);
       mapView.getController().setZoom(15); 
       mapView.getController().setCenter(new GeoPoint(mLat, mLon));
       mapView.setUseDataConnection(true); 
       mapView.setMultiTouchControls(true);

I have made an offline map with Atlas creator using OSMDroid MapQuest

I have placed zip file inside Sdcard inside "osmdroid" folder.

But

When i run my android application there is excetion that

**fail to read directory

and showing "blank map" on my android device

Please please help.

Which android version are you using? do yo have declared read persmissions in android manifest? — k3b, Oct 05 '15 at 13:14

score 0 · Answer 1 · edited May 23 '17 at 11:59

If you're using Lollipop, you cannot read from any arbitrary directory from the SDCard. You have to do one of these:

Request for permission through SAF to read from any directory on the sdcard : How to use the new SD card access API presented for Android 5.0 (Lollipop)?
Write to your app specific folder on the sdcard by calling context.getExternalFilesDirs and choosing the sdcard path that is returned.

OSMDroid offline map : exception with blank map on android device "fail to read directory on sdcard"

1 Answers1