Android java.lang.IllegalArgumentException上出错:提供程序==null
我将我的应用程序发布到安卓市场。我的主页有错误。有人写了崩溃错误。但是这个应用程序在我的真实设备上运行得非常好。我还添加了权限。 我的错误:Android java.lang.IllegalArgumentException上出错:提供程序==null,android,google-maps,gps,illegalargumentexception,Android,Google Maps,Gps,Illegalargumentexception,我将我的应用程序发布到安卓市场。我的主页有错误。有人写了崩溃错误。但是这个应用程序在我的真实设备上运行得非常好。我还添加了权限。 我的错误: java.lang.RuntimeException: Unable to start activity ComponentInfo{com.karthi.locationspeecher/com.android.locationspeecher.LocationSpeecher}: java.lang.IllegalArgumentException:
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.karthi.locationspeecher/com.android.locationspeecher.LocationSpeecher}: java.lang.IllegalArgumentException: provider==null
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1651)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1667)
at android.app.ActivityThread.access$1500(ActivityThread.java:117)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:935)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:130)
at android.app.ActivityThread.main(ActivityThread.java:3687)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:507)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:867)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:625)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.IllegalArgumentException: provider==null
at android.location.LocationManager.getLastKnownLocation(LocationManager.java:1017)
at com.android.locationspeecher.LocationSpeecher.onCreate(LocationSpeecher.java:84)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1615)
... 11 more
地点经理:
LocationManager locationManager;
String context = Context.LOCATION_SERVICE;
locationManager = (LocationManager)getSystemService(context);
Criteria crta = new Criteria();
crta.setAccuracy(Criteria.ACCURACY_FINE);
crta.setAltitudeRequired(false);
crta.setBearingRequired(false);
crta.setCostAllowed(true);
crta.setPowerRequirement(Criteria.POWER_LOW);
String provider = locationManager.getBestProvider(crta, true);
// String provider = LocationManager.GPS_PROVIDER;
Location location = locationManager.getLastKnownLocation(provider);
updateWithNewLocation(location);
locationManager.requestLocationUpdates(provider, 2000, 10, locationListener);
}
您很可能会遇到此错误,因为
GPS提供商不可用。如果位置设置中启用了Gps提供商
或网络提供商
,请让该人员检查设置。同时确保添加android.permission.ACCESS\u FINE\u Location
或android.permission.ACCESS\u rough\u Location
,这为我解决了问题(所有提供程序都已在位置设置中启用)。我通过添加以下内容解决了此问题:
`[程序集:UsesPermission(Manifest.Permission.AccessFineLocation)]
[程序集:UsesPermission(Manifest.Permission.AccessLocation)]
[程序集:UsesPermission(Manifest.Permission.Internet)]”
在assemlyInfo.cs中授予权限