未选中addOnCompleteListener并导致应用崩溃 [英] addOnCompleteListener is Unchecked and crashes app

问题描述

我有此代码:

// Using this method to center MyLocation as default location when app is started
    private void getDeviceLocation() {
        Log.d(TAG, "getDeviceLocation: getting the devices current location");
    mFusedLocationClient = LocationServices.getFusedLocationProviderClient(this);

    try {

        if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
            //Request Location Permission
            checkLocationPermission();
        } else {
        final Task location = mFusedLocationClient.getLastLocation();
            location.addOnCompleteListener(this, new OnCompleteListener() {
                @Override
                public void onComplete(@NonNull Task task) {
                    if (task.isSuccessful()) {
                        Log.d(TAG, "onComplete: found location!");
                        Location mLastLocation = (Location) task.getResult();

                        // mLastLocation = location;
                        if (mCurrentLocationMarker != null) {
                            mCurrentLocationMarker.remove();
                        }

                        LatLng latLng = new LatLng(mLastLocation.getLatitude(), mLastLocation.getLongitude());
                        MarkerOptions markerOptions = new MarkerOptions();
                        markerOptions.position(latLng);
                        markerOptions.title("My position");
                        markerOptions.icon(BitmapDescriptorFactory.fromResource(R.drawable.emptyicon));
                        mCurrentLocationMarker = mMap.addMarker(markerOptions);
                        mMap.moveCamera(CameraUpdateFactory.newLatLngZoom(latLng, 15));

                    } else {
                        Log.d(TAG, "onComplete: current location is null");
                        Toast.makeText(MapsActivity.this, "unable to get current location", Toast.LENGTH_SHORT).show();
                    }
                }
            });
        }
    } catch (SecurityException e) {
        Log.e(TAG, "getDeviceLocation: SecurityException: " + e.getMessage());
    }

以下行:location.addCompleteListener被Android Studio标记为未选中，这会使应用崩溃.因此，我必须以某种方式使其选中". 这是在针对Android Studio的最新更新补丁之后发生的.

the line: location.addCompleteListener is marked as unchecked by Android Studio and it crashes the app. So I have to make it "checked" in somehow. This happened after the latest update patch for Android Studio.

我该如何解决?

推荐答案

如果我有50个以上的代表，我会发表评论.

I would comment if I had 50+ rep.

无论如何，您可以继续使用

Anyway, you can continue using

.addOnCompleteListener(new OnCompleteListener<Location>(){
});

通过添加到@ nope4561759所表示的内容，将<Location>添加到onComplete()重写方法的Task参数上，如下所示:public void onComplete(@NonNull Task<Location> task) {…}

by, adding to what @nope4561759 said, adding <Location> to Task argument on onComplete() overridden method like so: public void onComplete(@NonNull Task<Location> task) {…}

这篇关于未选中addOnCompleteListener并导致应用崩溃的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！