Question

在Marshmallow中，如果第一次拒绝权限，则运行时权限对话框不会再次提示。我有3个危险许可WRITE_EXTERNAL_STORAGE，READ_SMS＆amp; CAMERA许可。任何人都可以告诉我哪里出错了。

if (Build.VERSION.SDK_INT >= 23) {
        if (ContextCompat.checkSelfPermission(getActivity(),
                Manifest.permission.WRITE_EXTERNAL_STORAGE)
                != PackageManager.PERMISSION_GRANTED || ContextCompat.checkSelfPermission(getActivity(),
                Manifest.permission.CAMERA)
                != PackageManager.PERMISSION_GRANTED || ContextCompat.checkSelfPermission(getActivity(),
                Manifest.permission.READ_SMS)
                != PackageManager.PERMISSION_GRANTED) {

            if (ContextCompat.checkSelfPermission(getActivity(),
                    Manifest.permission.WRITE_EXTERNAL_STORAGE)
                    != PackageManager.PERMISSION_GRANTED) {
                if (ActivityCompat.shouldShowRequestPermissionRationale(getActivity(),
                        Manifest.permission.WRITE_EXTERNAL_STORAGE)) {

                } else {   
                    ActivityCompat.requestPermissions(getActivity(),
                            new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE},
                            MY_PERMISSIONS_REQUEST_WRITE_EXTERNAL_STORAGE);
                }
            }
            if (ContextCompat.checkSelfPermission(getActivity(),
                    Manifest.permission.CAMERA)
                    != PackageManager.PERMISSION_GRANTED) {
                if (ActivityCompat.shouldShowRequestPermissionRationale(getActivity(),
                        Manifest.permission.WRITE_EXTERNAL_STORAGE)) {

                } else {

                    ActivityCompat.requestPermissions(getActivity(),
                            new String[]{Manifest.permission.CAMERA},
                            MY_PERMISSIONS_REQUEST_CAMERA);
                }

            }
            if (ContextCompat.checkSelfPermission(getActivity(),
                    Manifest.permission.READ_SMS)
                    != PackageManager.PERMISSION_GRANTED) {
                if (ActivityCompat.shouldShowRequestPermissionRationale(getActivity(),
                        Manifest.permission.WRITE_EXTERNAL_STORAGE)) {

                } else {
        ActivityCompat.requestPermissions(getActivity(),
                            new String[]{Manifest.permission.READ_SMS},
                            MY_PERMISSIONS_REQUEST_SMS);
                }
            }

        }
    }

Answer 1

我认为你必须使用

ActivityCompat.requestPermissions(getActivity(), new String[]{Manifest.permission.CAMERA}, MY_PERMISSIONS_REQUEST_CAMERA);

而不是

write()

Answer 2

使用此代码可能会对您有所帮助

在您要打开权限请求对话框的位置使用此代码。

@RequiresApi(api = Build.VERSION_CODES.M)
    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);

        if (requestCode == 1) {

            if (ActivityCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
                if (shouldShowRequestPermissionRationale(Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
                    requestPermissions(new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, 1);
                }
                else{
                    Log.e("permission force:", "Here you code if anyone check never and denied request of Write External Storage");

                }
            }

        } else if (requestCode == 2) {
            if (ActivityCompat.checkSelfPermission(this, Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED) {
                if (shouldShowRequestPermissionRationale(Manifest.permission.CAMERA)) {

                    requestPermissions(new String[]{Manifest.permission.CAMERA}, 2);

                }else{
                    Log.e("permission force:", "Here you code if anyone check never and denied request of Camera");


                }
            }
        }else if (requestCode == 3) {
            if (ActivityCompat.checkSelfPermission(this, Manifest.permission.READ_SMS) != PackageManager.PERMISSION_GRANTED) {
                if (shouldShowRequestPermissionRationale(Manifest.permission.READ_SMS)) {

                    requestPermissions(new String[]{Manifest.permission.READ_SMS}, 3);

                }else{
                    Log.e("permission force:", "Here you code if anyone check never and denied request of ReadSMS");


                }
            }
        }


    }

下面的代码用于处理权限对话框响应（再次打开权限对话框，授予或拒绝权限检查等）。

$totalRequests = \App\LoanRequest::all();
$filterMeta = [];
foreach($totalRequests as $applicant){
    array_push($filterMeta, $applicant->aplicant->region);
}

Answer 3

运行时权限API的一个更令人困惑的方面是shouldShowRequestPermissionRationale()仅用于在PERMISSION_DENIED回调中获得onRequestPermissionsResult()时使用。在其他地方这样做会导致奇怪的行为。

您最好的选择是检查是否需要权限并请求，如果您的应用没有。如果需要，在结果处理拒绝。

您可能会发现此帮助程序库在处理此问题时更易于处理，也可帮助您的应用遵循适用于您的Google指南：https://github.com/hiqes/andele

MarshMallow权限对话框不提示

3 个答案: