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我将我的应用程序发布到 android 市场。我的主页出现错误。有人写了崩溃错误。但是这个应用程序在我的真实设备中完美运行。我也添加了权限。我的错误：

java.lang.RuntimeException: Unable to start activity ComponentInfo{com.karthi.locationspeecher/com.android.locationspeecher.LocationSpeecher}: java.lang.IllegalArgumentException: 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

位置管理器：

 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); 
            }
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3 回答 3

6

由于GPS Providers. 请让此人检查设置是否Gps Provider或Network Provider已启用位置设置。

于 2012-09-21T04:56:29.107 回答
0

还要确保添加android.permission.ACCESS_FINE_LOCATION或添加android.permission.ACCESS_COARSE_LOCATION到您的清单文件中，这为我解决了问题（所有提供程序都已在位置设置中启用）。

于 2013-08-02T10:35:14.437 回答
0

我通过添加解决了这个问题：

`[程序集：UsesPermission(Manifest.Permission.AccessFineLocation)] [程序集：UsesPermission(Manifest.Permission.AccessCoarseLocation)] [程序集：UsesPermission(Manifest.Permission.Internet)]'

在 assemlyInfo.cs 中授予权限

于 2017-03-22T14:19:44.000 回答