位置管理器不工作的Android 4.0.2模拟器 [英] Location Manager not working in Android 4.0.2 Emulator
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问题描述
我使用位置管理器在我的应用程序GPS跟踪。使用安卓 2.2,2.3.3仿真器和设备，而该应用程序将返回恰当的位置。但是，奇怪的是我所测试的应用程序中的仿真器4.0.2 。它返回部队密切误差 05-28 15：13：46.584：E / AndroidRuntime（4458）：在com.package.TestRun.registerLocationListeners（TestRun.java:191）在的logcat 。我已经实现如下的code：
I am using Location Manager for GPS tracking in my application. The app returns apt location while using in Android 2.2,2.3.3 emulators and devices. But, Strangely i tested the app in Emulator 4.0.2. It returns force close error as 05-28 15:13:46.584: E/AndroidRuntime(4458): at com.package.TestRun.registerLocationListeners(TestRun.java:191) in logcat. I have implemented the code as below:
LocationManager lm;
LocationManager lmNet;
private void registerLocationListeners() {
lm = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
if (myGPSLocationListener == null || mynetworkprovider == null)
{
createLocationListeners();
}
lm.requestLocationUpdates(LocationManager.NETWORK_PROVIDER ,0,0,mynetworkprovider);
lm.requestLocationUpdates(LocationManager.GPS_PROVIDER ,60000,0,myGPSLocationListener);
}
private void createLocationListeners() {
mynetworkprovider = new LocationListener() {
public void onLocationChanged(Location argLocation) {
if (argLocation != null) {
gps[0] = argLocation.getLatitude();
gps[1] = argLocation.getLongitude();
//Toast.makeText( getApplicationContext(),"Network provider Lat =" + gps[0] + " Lon = " + gps[1] , Toast.LENGTH_SHORT).show();
}
//Toast.makeText( getApplicationContext(),"On Location change" , Toast.LENGTH_SHORT).show();
}
public void onProviderDisabled(String provider) {
// TODO Auto-generated method stub
// Toast.makeText( getApplicationContext(),"Disable" , Toast.LENGTH_SHORT).show();
}
public void onProviderEnabled(String provider) {
// TODO Auto-generated method stub
// Toast.makeText( getApplicationContext(),"enabled" , Toast.LENGTH_SHORT).show();
}
public void onStatusChanged(String provider,
int status, Bundle extras) {
// TODO Auto-generated method stub
//Toast.makeText( getApplicationContext(),"Status change" , Toast.LENGTH_SHORT).show();
}
};
myGPSLocationListener = new LocationListener() {
public void onLocationChanged(Location argLocation) {
if (argLocation != null) {
gps[0] = argLocation.getLatitude();
gps[1] = argLocation.getLongitude();
//Toast.makeText( getApplicationContext(),"GPS Lat =" + gps[0] + " Lon = " + gps[1] , Toast.LENGTH_SHORT).show();
}
//Toast.makeText( getApplicationContext(),"On Location change" , Toast.LENGTH_SHORT).show();
}
public void onProviderDisabled(String provider) {
// TODO Auto-generated method stub
//Toast.makeText( getApplicationContext(),"Disable" , Toast.LENGTH_SHORT).show();
//launchGPS();
}
public void onProviderEnabled(String provider) {
// TODO Auto-generated method stub
//Toast.makeText( getApplicationContext(),"enabled" , Toast.LENGTH_SHORT).show();
}
public void onStatusChanged(String provider,
int status, Bundle extras) {
// TODO Auto-generated method stub
//Toast.makeText( getApplicationContext(),"Status change" , Toast.LENGTH_SHORT).show();
}
};
}
更新：这是我的logcat：
UPDATE: Here is my logcat :
05-28 15:42:46.375: E/AndroidRuntime(5585): FATAL EXCEPTION: main
05-28 15:42:46.375: E/AndroidRuntime(5585): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.package/com.package.TestRun}: java.lang.IllegalArgumentException: provider=network
05-28 15:42:46.375: E/AndroidRuntime(5585): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1955)
05-28 15:42:46.375: E/AndroidRuntime(5585): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1980)
05-28 15:42:46.375: E/AndroidRuntime(5585): at android.app.ActivityThread.access$600(ActivityThread.java:122)
05-28 15:42:46.375: E/AndroidRuntime(5585): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1146)
05-28 15:42:46.375: E/AndroidRuntime(5585): at android.os.Handler.dispatchMessage(Handler.java:99)
05-28 15:42:46.375: E/AndroidRuntime(5585): at android.os.Looper.loop(Looper.java:137)
05-28 15:42:46.375: E/AndroidRuntime(5585): at android.app.ActivityThread.main(ActivityThread.java:4340)
05-28 15:42:46.375: E/AndroidRuntime(5585): at java.lang.reflect.Method.invokeNative(Native Method)
05-28 15:42:46.375: E/AndroidRuntime(5585): at java.lang.reflect.Method.invoke(Method.java:511)
05-28 15:42:46.375: E/AndroidRuntime(5585): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
05-28 15:42:46.375: E/AndroidRuntime(5585): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
05-28 15:42:46.375: E/AndroidRuntime(5585): at dalvik.system.NativeStart.main(Native Method)
05-28 15:42:46.375: E/AndroidRuntime(5585): Caused by: java.lang.IllegalArgumentException: provider=network
05-28 15:42:46.375: E/AndroidRuntime(5585): at android.os.Parcel.readException(Parcel.java:1331)
05-28 15:42:46.375: E/AndroidRuntime(5585): at android.os.Parcel.readException(Parcel.java:1281)
05-28 15:42:46.375: E/AndroidRuntime(5585): at android.location.ILocationManager$Stub$Proxy.requestLocationUpdates(ILocationManager.java:646)
05-28 15:42:46.375: E/AndroidRuntime(5585): at android.location.LocationManager._requestLocationUpdates(LocationManager.java:582)
05-28 15:42:46.375: E/AndroidRuntime(5585): at android.location.LocationManager.requestLocationUpdates(LocationManager.java:446)
05-28 15:42:46.375: E/AndroidRuntime(5585): at com.package.TestRun.registerLocationListeners(TestRun.java:191)
05-28 15:42:46.375: E/AndroidRuntime(5585): at com.package.TestRun.onCreate(TestRun.java:135)
05-28 15:42:46.375: E/AndroidRuntime(5585): at android.app.Activity.performCreate(Activity.java:4465)
05-28 15:42:46.375: E/AndroidRuntime(5585): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049)
05-28 15:42:46.375: E/AndroidRuntime(5585): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1919)
是否有位置管理器在的Android 4.0 API的更新？请分享观点/解决方案的链接，如果任何人面临同样的问题。
Is there any update for Location Manager in Android 4.0 API? Please share views/solution links if anyone faced the same problem.
推荐答案
这是一个问题。看这。
它说：
不要直接使用提供商字符串，因为它不能保证它会存在的在运行时。
Do not use direct provider strings, as it is not guaranteed that it will exist at runtime.
使用仅提供商你从获得 LocationManager ，像这样的：
Use only providers that you get from the LocationManager, like this:
LocationManager locationManager = (LocationManager)context.getSystemService( Context.LOCATION_SERVICE );
Criteria criteria = new Criteria();
criteria.setAccuracy( Criteria.ACCURACY_COARSE );
String provider = locationManager.getBestProvider( criteria, true );
if ( provider == null ) {
Log.e( TAG, "No location provider found!" );
return;
}
lastLocation = locationManager.getLastKnownLocation(provider);
或
在 locationmanager 另一个有用的方法是 LocationManager.getAllProviders（）
Another useful method in locationmanager is LocationManager.getAllProviders()
/**
* Returns a list of the names of all known location providers. All
* providers are returned, including ones that are not permitted to be
* accessed by the calling activity or are currently disabled.
*
* @return list of Strings containing names of the providers
*/
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