Question

我希望用户在第一次打开应用程序时应询问权限，而不是第二次。此错误在oreo版本上

if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            // only for gingerbread and newer versions

            Dexter.withActivity(getActivity())
                    .withPermissions(
                            Manifest.permission.READ_EXTERNAL_STORAGE, Manifest.permission.WRITE_EXTERNAL_STORAGE,
                            Manifest.permission.CAMERA, Manifest.permission.CALL_PHONE
                    )
                    .withListener(new MultiplePermissionsListener() {
                        @Override
                        public void onPermissionsChecked(MultiplePermissionsReport report) {
                            // check if all permissions are granted
                            if (report.areAllPermissionsGranted()) {
                                // do you work now

                            }

                            // check for permanent denial of any permission
                            if (report.isAnyPermissionPermanentlyDenied()) {
                                // permission is denied permenantly, navigate user to app settings
                            }
                        }

                        @Override
                        public void onPermissionRationaleShouldBeShown(List<PermissionRequest> permissions, PermissionToken token) {
                            token.continuePermissionRequest();
                        }
                    })
                    .onSameThread()
                    .check();
        }

Answer 1

我正在使用从6.0到9.0的这段代码，并且可以正常工作。在onCreate()方法中。添加它。

注意 PERMISSION_REQUEST_CODE == 1

这只是运行时权限的示例代码。您可以更改

    if (ContextCompat.checkSelfPermission(Login.this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
        ActivityCompat.requestPermissions(Login.this, new String[]{Manifest.permission.ACCESS_FINE_LOCATION}, PERMISSION_REQUEST_CODE);
    }

    if (ContextCompat.checkSelfPermission(Login.this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
        ActivityCompat.requestPermissions(Login.this, new String[]{Manifest.permission.ACCESS_COARSE_LOCATION}, PERMISSION_REQUEST_CODE);
    }
    if (ContextCompat.checkSelfPermission(Login.this, Manifest.permission.READ_PHONE_STATE) != PackageManager.PERMISSION_GRANTED) {
        ActivityCompat.requestPermissions(Login.this, new String[]{Manifest.permission.READ_PHONE_STATE}, PERMISSION_REQUEST_CODE);
    }

Answer 2

运行时有多个请求权限。这对我有用！

List<String> listPermissionsNeeded = new ArrayList<>();
        if (ContextCompat.checkSelfPermission(context, Manifest.permission.READ_EXTERNAL_STORAGE)
                != PackageManager.PERMISSION_GRANTED) {
            listPermissionsNeeded.add(Manifest.permission.READ_EXTERNAL_STORAGE);
        }
        if (ContextCompat.checkSelfPermission(context, Manifest.permission.CAMERA)
                != PackageManager.PERMISSION_GRANTED) {
            listPermissionsNeeded.add(Manifest.permission.CAMERA);
        }
        if (ContextCompat.checkSelfPermission(context, Manifest.permission.CALL_PHONE)
                != PackageManager.PERMISSION_GRANTED) {
            listPermissionsNeeded.add(Manifest.permission.CALL_PHONE);
        }

        if (!listPermissionsNeeded.isEmpty()) {
            ActivityCompat.requestPermissions(this,
                    listPermissionsNeeded.toArray(new String[listPermissionsNeeded.size()]),
                    REQUEST_ID_MULTIPLE_PERMISSIONS);
        }

将此代码添加到清单

<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.CALL_PHONE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />

Android如何在OREO的第一个运行时上运行权限

2 个答案: