当连接丢失时(当用户清除 RAM 时),我尝试重新连接到 LocationClient。
我尝试使用此代码:
private final GooglePlayServicesClient.ConnectionCallbacks mConnectionCallback = new GooglePlayServicesClient.ConnectionCallbacks() {
@Override
public void onDisconnected() {
mLocationClient.removeLocationUpdates(mLocationListener);
mLocationClient.disconnect();
mLocationClient= null;
mLocationClient= new LocationClient(mContext, mConnectionCallback, mConnectionFailedCallback);
mLocationClient.connect(); // NULL POINTER EXCEPTION
}
@Override
public void onConnected(Bundle bundle) {
...
}
};
但是我在里面得到了 NullPointerException mLocaitonClient.connect()
。
10-15 08:33:26.478: E/AndroidRuntime(19572): FATAL EXCEPTION: main
10-15 08:33:26.478: E/AndroidRuntime(19572): java.lang.NullPointerException
10-15 08:33:26.478: E/AndroidRuntime(19572): at com.google.android.gms.internal.bh.a(Unknown Source)
10-15 08:33:26.478: E/AndroidRuntime(19572): at com.google.android.gms.internal.k.f(Unknown Source)
10-15 08:33:26.478: E/AndroidRuntime(19572): at com.google.android.gms.internal.k$e.onServiceConnected(Unknown Source)
10-15 08:33:26.478: E/AndroidRuntime(19572): at com.google.android.gms.internal.l.a(Unknown Source)
10-15 08:33:26.478: E/AndroidRuntime(19572): at com.google.android.gms.internal.k.connect(Unknown Source)
10-15 08:33:26.478: E/AndroidRuntime(19572): at com.google.android.gms.location.LocationClient.connect(Unknown Source)
10-15 08:33:26.478: E/AndroidRuntime(19572): at com.myapp.MyLocationClient$1.onDisconnected(MyLocationClient.java:92)
10-15 08:33:26.478: E/AndroidRuntime(19572): at com.google.android.gms.internal.k.A(Unknown Source)
10-15 08:33:26.478: E/AndroidRuntime(19572): at com.google.android.gms.internal.k$e.onServiceDisconnected(Unknown Source)
10-15 08:33:26.478: E/AndroidRuntime(19572): at com.google.android.gms.internal.l$a$a.onServiceDisconnected(Unknown Source)
10-15 08:33:26.478: E/AndroidRuntime(19572): at android.app.LoadedApk$ServiceDispatcher.doDeath(LoadedApk.java:1102)
10-15 08:33:26.478: E/AndroidRuntime(19572): at android.app.LoadedApk$ServiceDispatcher$RunConnection.run(LoadedApk.java:1116)
10-15 08:33:26.478: E/AndroidRuntime(19572): at android.os.Handler.handleCallback(Handler.java:615)
10-15 08:33:26.478: E/AndroidRuntime(19572): at android.os.Handler.dispatchMessage(Handler.java:92)
10-15 08:33:26.478: E/AndroidRuntime(19572): at android.os.Looper.loop(Looper.java:137)
10-15 08:33:26.478: E/AndroidRuntime(19572): at android.app.ActivityThread.main(ActivityThread.java:4898)
10-15 08:33:26.478: E/AndroidRuntime(19572): at java.lang.reflect.Method.invokeNative(Native Method)
10-15 08:33:26.478: E/AndroidRuntime(19572): at java.lang.reflect.Method.invoke(Method.java:511)
10-15 08:33:26.478: E/AndroidRuntime(19572): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1006)
10-15 08:33:26.478: E/AndroidRuntime(19572): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:773)
10-15 08:33:26.478: E/AndroidRuntime(19572): at dalvik.system.NativeStart.main(Native Method)
如何修复它并重新连接?