IllegalArgumentException: provider doesn't exisit: null

[lingling-fan]

//package name: com.dgmltn.morphclock.app
//version: 1.0.1
//target sdk version: android-18
java.lang.RuntimeException: Unable to resume activity {com.dgmltn.morphclock.app/com.dgmltn.morphclock.app.MainActivity}: java.lang.IllegalArgumentException: provider doesn't exisit: null
at android.app.ActivityThread.performResumeActivity(ActivityThread.java:2790)
at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:2819)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2266)
at android.app.ActivityThread.access$600(ActivityThread.java:141)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1256)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5103)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.IllegalArgumentException: provider doesn't exisit: null
at android.os.Parcel.readException(Parcel.java:1435)
at android.os.Parcel.readException(Parcel.java:1385)
at android.location.ILocationManager$Stub$Proxy.requestLocationUpdates(ILocationManager.java:540)
at android.location.LocationManager.requestLocationUpdates(LocationManager.java:836)
at android.location.LocationManager.requestLocationUpdates(LocationManager.java:430)
at com.dgmltn.morphclock.app.SkyView.startTicking(SkyView.java:90)
at com.dgmltn.morphclock.app.MainActivity.onResume(MainActivity.java:140)
at android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1192)
at android.app.Activity.performResume(Activity.java:5211)
at android.app.ActivityThread.performResumeActivity(ActivityThread.java:2780)

[lingling-fan]

The provider(network or gps) is null or doesn't exist on some device, so even if you start corresponding services, it still doesn’t work. Better check it like this:

if(locationManager.getAllProviders().contains("network")) {
     locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, time, distance, this);
}