2

I am getting current location using Location Services api. Actually, I have verified whether location is enabled or not using Location Manager class in onResume() method and if is not enable then sending user to Location Setting using intent. After enabling location coming back to activity and trying to connect Google client api. But it is not connecting and not giving any location. I have used this code.

protected synchronized void buildGoogleApiClient(){
    mGoogleApiClient = new GoogleApiClient.Builder(this)
            .addConnectionCallbacks(connectionCallbackListener)
            .addOnConnectionFailedListener(connectionFailedListener)
            .addApi(LocationServices.API)
            .build();
}

@Override
protected void onResume() {
    super.onResume();
    if (!manager.isProviderEnabled(LocationManager.GPS_PROVIDER) ||
            !manager.isProviderEnabled(LocationManager.NETWORK_PROVIDER)){
        AlertDialog.Builder builder = new AlertDialog.Builder(this)
                .setTitle("Location is disabled")
                .setMessage("Please enable your location")
                .setPositiveButton("OK", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        startActivity(new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS));
                    }
                });

        AlertDialog dialog = builder.create();
        dialog.show();

    } else {
        Log.v("Connection Status", String.valueOf(mGoogleApiClient.isConnected()));
        mGoogleApiClient.connect();
    }
}

@Override
protected void onPause() {
    super.onPause();
    if (mGoogleApiClient.isConnected()){
        mGoogleApiClient.disconnect();
    }
}

GoogleApiClient.ConnectionCallbacks connectionCallbackListener = new GoogleApiClient.ConnectionCallbacks() {

    @Override
    public void onConnected(Bundle bundle) {
        mLastLocation = LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient);

        if (mLastLocation != null){
            Log.v("Latitude", String.valueOf(mLastLocation.getLatitude()));
            Log.v("LOngitude", String.valueOf(mLastLocation.getLongitude()));
            startIntentService();
        }
    }
    @Override
    public void onConnectionSuspended(int i) {

    }
};

GoogleApiClient.OnConnectionFailedListener connectionFailedListener = new GoogleApiClient.OnConnectionFailedListener() {
    @Override
    public void onConnectionFailed(ConnectionResult connectionResult) {
        Log.i("Connection failed", String.valueOf(connectionResult.getErrorCode()));
    }
};

And I am calling buildGoogleApiClient() method in onCreate() callback. Please someone tell me solution as it is very important.

4

1 回答 1

3

您可以使用startActivityForResult(), 然后onActivityResult()检查是否从对话框提示中启用了位置提供程序之一。

如果启用了 GPS 或网络位置提供程序，则调用mGoogleApiClient.connect()。

另请注意，您可以在初始检查中使用&&而不是||，因为如果启用了至少一个位置提供程序，则实际上不需要提示用户“位置已禁用”。

@Override
protected void onResume() {
    super.onResume();
    if (!manager.isProviderEnabled(LocationManager.GPS_PROVIDER) &&
            !manager.isProviderEnabled(LocationManager.NETWORK_PROVIDER)){
        AlertDialog.Builder builder = new AlertDialog.Builder(this)
                .setTitle("Location is disabled")
                .setMessage("Please enable your location")
                .setPositiveButton("OK", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        startActivityForResult(new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS), 100);
                    }
                });

        AlertDialog dialog = builder.create();
        dialog.show();

    } else {
        Log.v("Connection Status", String.valueOf(mGoogleApiClient.isConnected()));
        mGoogleApiClient.connect();
    }
}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if (requestCode == 100) {
        if (manager.isProviderEnabled(LocationManager.GPS_PROVIDER) ||
                manager.isProviderEnabled(LocationManager.NETWORK_PROVIDER)) {

            //At least one provider enabled, connect GoogleApiClient
            mGoogleApiClient.connect();

        }
    }
}
于 2015-06-02T06:11:09.573 回答