Question

我正在尝试实施简单的Android应用程序，允许用户在用户靠近特定位置时保存位置并显示提醒。然而，我的地理位置似乎并没有触发。我已经花了一些时间，但一直无法找到解决方案。

应用程序应该像这样工作： 1.去位置 2.添加位置提醒 3.当你在附近时获得提醒

MainActivity：

public class MainActivity extends Activity implements LocationListener {

final static int LOCATION_PERMISSION_REQUEST_CODE = 0;
private LocationManager locationManager;
private Location mLocation;

private double lat, lng;
private float radius=1000;
String ACTION_FILTER = "com.example.mikes.locationreminder";

@Override
protected void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
    registerReceiver(new Geofences(), new IntentFilter(ACTION_FILTER));

    locationManager=(LocationManager) getSystemService(LOCATION_SERVICE);

    Intent i= new Intent(ACTION_FILTER);
    PendingIntent pi = PendingIntent.getBroadcast(getApplicationContext(), -1, i, 0);

    locationManager.addProximityAlert(mLocation.getLatitude(), mLocation.getLongitude(), radius, -1, pi);


}
....

地理围栏：

public class Geofences extends BroadcastReceiver {

@Override
public void onReceive(Context context, Intent intent) {
    String key = LocationManager.KEY_PROXIMITY_ENTERING;

    boolean state = intent.getBooleanExtra(key, false);

    if(state){
        Log.i("MyTag", "In secret area");
        Toast.makeText(context, "In secret area", Toast.LENGTH_SHORT).show();
    }else{
        Log.i("MyTag", "Left secret area");
        Toast.makeText(context, "Left secret area", Toast.LENGTH_SHORT).show();
    }
}
}

简单的地理围栏不起作用

0 个答案: