Develop Reference

Troubleshooting android displaying error"Unfortunately app has stopped working"

i have created an android app on google maps through eclipse,there are no errors but when i install it on emulator or any android device and run it,error message is displayed that "unfortunately app has stopped working".
please guide me for the troubleshooting.
this is the java main activity file :-
package com.example.droidloc;
import java.util.List;
import android.os.Bundle;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import com.google.android.maps.MapActivity;
import com.google.android.maps.MapView;
import com.google.android.maps.Overlay;
import android.view.Menu;
import android.view.MotionEvent;
public class MainActivity extends MapActivity {
MapView map;
long start;
long stop;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
map=(MapView)findViewById(R.id.mainmap);
map.setBuiltInZoomControls(true);
touchy t =new touchy();
List<Overlay> overlayList = map.getOverlays();
overlayList.add(t);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
class touchy extends Overlay
{
#SuppressWarnings("deprecation")
public boolean onTouchEvent(MotionEvent e,MapView m)
{
if(e.getAction()==MotionEvent.ACTION_DOWN)
{
start=e.getEventTime();
}
if(e.getAction()==MotionEvent.ACTION_UP)
{
stop=e.getEventTime();
}
if(stop-start>1500)
{
AlertDialog alert=new
AlertDialog.Builder(MainActivity.this).create();
alert.setTitle("Pick an Option");
alert.setMessage("Pick an Option dude");
alert.setButton2("Pin a Point", new
DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface arg0, int arg1)
{
// TODO Auto-generated method stub
}
});
alert.show();
return true;
}
return false ;
}
}
#Override
protected boolean isRouteDisplayed() {
// TODO Auto-generated method stub
return false;
}
}
---------------------------------------------------------------------------------------
This is the xml file :-
<?xml version="1.0" encoding="utf-8"?>
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/mainmap"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:name="com.google.android.gms.maps.MapFragment"
android:enabled="true"
android:clickable="true"
/>
---------------------------------------------------------------------------------------
this is the manifest file :-
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.droidloc"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="16" />
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<uses-feature
android:glEsVersion="0x00020000"
android:required="true"/>
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<uses-library android:name="com.google.android.maps" />
<activity
android:name="com.example.droidloc.MainActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<meta-data
android:name="com.google.android.maps.v2.API_KEY"
android:value="AIzaSyAlHKiaTa8KrABuGHIvcuZ4IiBFifqOu1s"/>
</application>
</manifest>

I think Your Fragment can not cast to MapView. so it could be your classcastexception . if not than you shoud post your logcat output.
try by use this in your Layout may be solve problem:
<com.google.android.gms.maps.MapView
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/mainmap"
android:layout_below="#+id/innerrelativelay" />
or
<fragment
android:id="#+id/mainmap"
android:layout_width="match_parent"
android:layout_height="match_parent"
class="com.google.android.gms.maps.MapFragment" />

There are a bunch of things missing. Heres a list of what I saw, and some are from comments:
You are extending mapActivity which is based on versio 1 of google maps android. But in xml you are using mapfragment v2 of google maps android.
You should extend FragmentActivity or any other activity like ActionBarActivity that extends from FragmentActivity.
You are missing metadata tag in manifest file.
Min sdk version is 8 so you need to use SupportMapFragment in xml you are using mapfragment which is available above api 11.

OSMDroid map not showing- small grey tiles only

package com.andersoncouncil.osm_01;
import org.osmdroid.DefaultResourceProxyImpl;
import org.osmdroid.ResourceProxy;
import org.osmdroid.tileprovider.tilesource.TileSourceFactory;
import org.osmdroid.util.GeoPoint;
import org.osmdroid.views.MapView;
import android.app.Activity;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.widget.TextView;
public class MainActivity extends Activity {
private TextView tv_sample;
private MapView mapview_osm;
private CustomItemizedOverlay item_overlay=null;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
tv_sample=(TextView)findViewById(R.id.textview_sample);
mapview_osm=(MapView)findViewById(R.id.mapview);
ResourceProxy proxy=new DefaultResourceProxyImpl(getApplicationContext());
Drawable icon=getResources().getDrawable(R.drawable.ic_launcher);
int icon_height=icon.getIntrinsicHeight();
int icon_width=icon.getIntrinsicWidth();
icon.setBounds(0,icon_height,icon_width,0);
item_overlay=new CustomItemizedOverlay(icon, proxy);
mapview_osm.setTileSource(TileSourceFactory.MAPNIK);
//mapview_osm.setUseDataConnection(true);
mapview_osm.setBuiltInZoomControls(true);
mapview_osm.getOverlays().add(item_overlay);
GeoPoint g1=new GeoPoint(5*1000000, 5*1000000);
GeoPoint g2=new GeoPoint(50*100000, 70*1000000);
item_overlay.addItem(g1,"point 1","point 1");
item_overlay.addItem(g2, "point 2", "point 2");
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}
package com.andersoncouncil.osm_01;
import java.util.ArrayList;
import org.osmdroid.ResourceProxy;
import org.osmdroid.api.IMapView;
import org.osmdroid.util.GeoPoint;
import org.osmdroid.views.overlay.ItemizedOverlay;
import org.osmdroid.views.overlay.OverlayItem;
import android.graphics.Point;
import android.graphics.drawable.Drawable;
public class CustomItemizedOverlay extends ItemizedOverlay<OverlayItem>{
private ArrayList<OverlayItem> item_list=new ArrayList<OverlayItem>();
public CustomItemizedOverlay(Drawable pDefaultMarker,
ResourceProxy pResourceProxy) {
super(pDefaultMarker, pResourceProxy);
// TODO Auto-generated constructor stub
}
public void addItem(GeoPoint p, String tittle, String snippets){
OverlayItem item=new OverlayItem(tittle, snippets, p);
item_list.add(item);
populate();
}
#Override
public boolean onSnapToItem(int arg0, int arg1, Point arg2, IMapView arg3) {
// TODO Auto-generated method stub
return false;
}
#Override
protected OverlayItem createItem(int arg0) {
// TODO Auto-generated method stub
return item_list.get(arg0);
}
#Override
public int size() {
// TODO Auto-generated method stub
return item_list.size();
}
}
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<TextView
android:id="#+id/textview_sample"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="OSM MAP EXAMPLE"
android:layout_alignParentTop="true" />
<org.osmdroid.views.MapView
android:id="#+id/mapview"
android:layout_below="#id/textview_sample"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:clickable="true" />
</RelativeLayout>
I ave attached my code above. Its just a simple implementation of OSMDroid, showing the launcher icon at two places. But my app is not sowing any maps. Its only showing grids(map grids, not actual places).
This programs manifest file is added below:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.andersoncouncil.osm_01"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="15" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name="com.andersoncouncil.osm_01.MainActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
Anyone up here, who knows the issue or can detect it please reply.

what version of osmdroid? what is your target api? If you're using API 23 and up as the target, you have explicitly ask for permission from the user for internet access and file system storage. The latest osmdroid sample app has an example of what's needed. The android docs have a good example too.

Android MapView Displays Black Screen

i am using google maps in my app. i am unable to get the map tiles. i just see a black screen. i have been struggling for 3 days now. i generate the map api key on my computer and i have added all the permissions in my menifest.xml file. but still unable to get map tiles.
ActivityMap.java
`
package com.example.locatometer;
import android.location.Criteria;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.os.Handler;
import com.example.locatometer.utils.Tracker;
import com.google.android.maps.GeoPoint;
import com.google.android.maps.MapActivity;
import com.google.android.maps.MapController;
import com.google.android.maps.MapView;
public class ActivityMap extends MapActivity{
MapView mapView;
MapController controller;
Tracker tracker;
Handler locationHandler = new Handler();
GeoPoint mapPoint;
#Override
protected void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.activity_current_location_on_map);
init();
}
private void init() {
mapView = (MapView) findViewById(R.id.map);
mapView.setBuiltInZoomControls(true);
mapView.setSatellite(true);
controller = mapView.getController();
}
#Override
protected void onResume() {
super.onResume();
}
#Override
protected void onPause() {
super.onPause();
}
#Override
protected boolean isRouteDisplayed() {
return false;
}
}
`
layout.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<com.google.android.maps.MapView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="#+id/map"
android:clickable="true"
android:apiKey="******************************" />
</LinearLayout>
manifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.locatometer"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="5"
android:targetSdkVersion="10" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_MOCK_LOCATION"/>
<uses-permission android:name="android.permission.INTERNET"/>
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/LocatometerTheme" android:debuggable="true">
<uses-library android:name="com.google.android.maps"/>
<activity
android:name="com.example.locatometer.ActivitySplash"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name="com.example.locatometer.ActivityMenu"></activity>
<activity android:name="com.example.locatometer.ActivityCurrentLocation"></activity>
<activity android:name="com.example.locatometer.ActivityMap"></activity>
</application>
</manifest>

It might not be related but i did this once when i was faced with a similar kind of issue. Under your application tag in manifest put
android:hardwareAccelerated="false"
Might not work but worth a try.

error application when show map

I'm new to android
I'm trying make a simple app in android with google map, but when I run it in emulator look error
The Application MapGoogle (process com.jol.android.Mapgoogle) has stopped unexpectedly. Please try again.
This is my GoogleMap.java
package com.jol.android.Mapgoogle;
import android.content.Context;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.widget.RelativeLayout;
import com.google.android.maps.GeoPoint;
import com.google.android.maps.MapActivity;
import com.google.android.maps.MapController;
import com.google.android.maps.MapView;
public class Googlemaps extends MapActivity {
private MapController mapController;
private MapView mapView;
private LocationManager locationManager;
public void onCreate(Bundle bundle) {
super.onCreate(bundle);
setContentView(R.layout.main); // bind the layout to the activity
// create a map view
RelativeLayout linearLayout = (RelativeLayout) findViewById(R.id.mapview);
mapView = (MapView) findViewById(R.id.mapview);
mapView.setBuiltInZoomControls(true);
mapView.setStreetView(true);
mapController = mapView.getController();
mapController.setZoom(14); // Zoon 1 is world view
locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, new GeoUpdateHandler());
}
#Override
protected boolean isRouteDisplayed() {
return false;
}
public class GeoUpdateHandler implements LocationListener {
#Override
public void onLocationChanged(Location location) {
int lat = (int) (location.getLatitude() * 1E6);
int lng = (int) (location.getLongitude() * 1E6);
GeoPoint point = new GeoPoint(lat, lng);
mapController.animateTo(point); // mapController.setCenter(point);
}
#Override
public void onProviderDisabled(String provider) {
}
#Override
public void onProviderEnabled(String provider) {
}
#Override
public void onStatusChanged(String provider, int status, Bundle extras) {
}
}
}
and this is my manifest
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.jol.android.Mapgoogle"
android:versionCode="1"
android:versionName="1.0" >
<application
android:icon="#drawable/icon"
android:label="#string/app_name" >
<activity
android:name=".mapgoogle"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<uses-library
android:required="true"
android:name="com.google.android.maps" />
</application>
<uses-sdk android:minSdkVersion="9" />
</manifest>
This my main.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<com.google.android.maps.MapView
android:id="#+id/mapview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:clickable="true"
android:apiKey="0Qe1BE05sZZFeWkfqemBVn-tw_Y_Kc9E40HpY-w" />
</RelativeLayout>
But when I run this program I got this error
The Application MapGoogle (process com.jol.android.Mapgoogle) has stopped unexpectedly. Please try again.
Why like this? Please help me. Thank you, mate.

Try this
<uses-permission android:name="android.permission.INTERNET"></uses-permission>
mobiForge: Using Google Maps in Android

You have several problems, the main one being the line:
RelativeLayout linearLayout = (RelativeLayout) findViewById(R.id.mapview);
It's an illegal cast and it does nothing - get rid of it!
As a matter of style your package should be all lower case, make it
package com.jol.android.mapgoogle;
Make sure you compilation unit is called Googlemaps.java and that it matches the class name.
As other posters have pointed out, you need certain permissions in the manifest. This manifest should work and match the other changes I have mentioned.
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.jol.android.mapgoogle"
android:versionCode="1"
android:versionName="1.0" >
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_MOCK_LOCATION" />
<uses-sdk android:minSdkVersion="9" />
<application
android:icon="#drawable/ic_launcher"
android:label="#string/app_name" >
<activity
android:name=".Googlemaps"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<uses-library
android:name="com.google.android.maps"
android:required="true" >
</uses-library>
</application>
</manifest>
.

You need to add following tag in your manifest file
<application >
<activity>
<uses-library android:name="com.google.android.maps" />
</activity>
</application>

Put this in the manifest:
<uses-permission android:name="android.permission.INTERNET">

Android google maps showing greed lines

I have one google maps application it does not show the maps it only shows the lines
It does not show the mapview,and i also have the internet Connection
And it also genrate the following error
09-30 12:01:12.934: WARN/Resources(587): Converting to string:
TypedValue{t=0x12/d=0x0 a=2 r=0x7f050002}
09-30 12:01:13.094: WARN/GpsLocationProvider(59): Duplicate add listener for uid
10042
09-30 12:01:13.334: INFO/MapActivity(587): Handling network change
notification:CONNECTED
09-30 12:01:13.334: ERROR/MapActivity(587): Couldn't get connection factory client
Showmap.java
package de.vogella.android.locationapi.maps;
import android.content.Context;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.widget.RelativeLayout;
import com.google.android.maps.GeoPoint;
import com.google.android.maps.MapActivity;
import com.google.android.maps.MapController;
import com.google.android.maps.MapView;
public class ShowMap extends MapActivity {
private MapController mapController;
private MapView mapView;
private LocationManager locationManager;
public void onCreate(Bundle bundle) {
super.onCreate(bundle);
setContentView(R.layout.main); // bind the layout to the activity
// create a map view
RelativeLayout linearLayout = (RelativeLayout) findViewById(R.id.mainlayout);
mapView = (MapView) findViewById(R.id.mapview);
mapView.setBuiltInZoomControls(true);
mapView.setStreetView(true);
mapController = mapView.getController();
mapController.setZoom(14); // Zoon 1 is world view
locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 13,
14, new GeoUpdateHandler());
}
#Override
protected boolean isRouteDisplayed() {
return false;
}
public class GeoUpdateHandler implements LocationListener {
#Override
public void onLocationChanged(Location location) {
int lat = (int) (location.getLatitude() * 1E6);
int lng = (int) (location.getLongitude() * 1E6);
GeoPoint point = new GeoPoint(lat, lng);
mapController.animateTo(point); // mapController.setCenter(point);
}
#Override
public void onProviderDisabled(String provider) {
}
#Override
public void onProviderEnabled(String provider) {
}
#Override
public void onStatusChanged(String provider, int status, Bundle extras) {
}
}
}
This is My mainfest
?xml version="1.0" encoding="utf-8"?>
<application android:icon="#drawable/icon" android:label="#string/app_name">
<uses-library android:name="com.google.android.maps" />
<activity android:name=".ShowMap"
android:label="#string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<uses-library android:required="true" android:name="com.google.android.maps"></uses-library>
And main.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/mainlayout"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<com.google.android.maps.MapView
android:id="#+id/mapview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:enabled="true"
android:clickable="true"
android:apiKey="0cHF-o_cvW1DEz3ocWAyybGqUsg8aUlwKMoyr4A"
/>

Do you have the required permissions in place in the AndroidManifest.xml? In an Android app that I've made for GPS + Maps I have the following:
<uses-permission android:name="android.permission.ACCESS_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_GPS" />

This is a problem with an API-Key.
Here you can do it.
You need to generate different one for each emulator, device etc. and for final release, and you need to merge them with an keystore you're using, what sux, but there is no different way :/.
Good luck!