Question

我试图实施Marshmallow的权限支持，但我的代码在＆＃34; onRequestPermissionsResult＆＃34;永远不会被称为。

当在一个活动中工作但是在片段中我遇到了问题，即控件没有进入onRequestPermissionsResult（）

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
                            mCheckPermission();
                        }

在mCheckPermission（）中： -

public void mCheckPermission() {
        if (ContextCompat.checkSelfPermission(getActivity(), Manifest.permission.ACCESS_FINE_LOCATION)
                != PackageManager.PERMISSION_GRANTED || ContextCompat.checkSelfPermission(getActivity(),
                Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
            requestPermissions(new String[]{Manifest.permission.ACCESS_FINE_LOCATION, Manifest.permission.ACCESS_COARSE_LOCATION},
                    PERMISSION_REQUEST_COARSE_LOCATION );

        }
    }

弹出对话框，弹出2个按钮。拒绝和允许。单击按钮时，控件不会进入onRequestPermissionCheck（）;

@Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);

        switch (requestCode){
            case PERMISSION_REQUEST_COARSE_LOCATION: {
                if (grantResults.length > 0
                        && grantResults[0] == PackageManager.PERMISSION_GRANTED) {

                    Toast.makeText(getActivity(), "permission granted", Toast.LENGTH_LONG).show();
                    //call your action

                } else {
                    Toast.makeText(getActivity(), "permission denied", Toast.LENGTH_LONG).show();
                }
                break;
            }
        }
    }

Answer 1

您需要使用support.v4.app.fragment requestPermission，而不是使用requestPermission的活动版本。 https://developer.android.com/reference/android/support/v4/app/Fragment.html 702

更改 ActivityCompat.requestPermissions（此为新的String [] {android.Manifest.permission.READ_CONTACTS}，REQUEST_CONTACT）；至 requestPermissions（new String [] {android.Manifest.permission.READ_CONTACTS}，REQUEST_CONTACT）;

和onRequestPermissionsResult将被正确调用。

积分：https://forums.bignerdranch.com/t/challenge-2-solution-onrequestpermissionsresult-was-not-called-back-on-fragment-so-used-it-in-the-activity-instead/9777

onRequestPermissionsResult无法在片段

1 个答案: