如何检查 Manifest.permission.MANAGE_EXTERNAL_STORAGE 是否被授予？

Question

如何查看Manifest.permission.MANAGE_EXTERNAL_STORAGE权限是否被授予？我尝试了以下但它不起作用：

ContextCompat.checkSelfPermission(context, 
  "Manifest.permission.MANAGE_EXTERNAL_STORAGE")
  == PackageManager.PERMISSION_GRANTED

上面的代码总是returns false，尽管已经授予了权限。感谢任何帮助，谢谢！

Answer 1

if (ContextCompat.checkSelfPermission(
                requireContext(),  
                Manifest.permission. MANAGE_EXTERNAL_STORAGE //Android 10, WRITE_EXTERNAL_STORAGE for older
            ) != PackageManager.PERMISSION_GRANTED
        ) {
            requestPermissions(
                arrayOf(Manifest.permission. MANAGE_EXTERNAL_STORAGE),
                REQUEST_CODE. // you can use it then in onActivityResult() etc.
            )
        } else {
             doSomething() //now you have permission
        }

Answer 2

使用Environment.isExternalStorageManager().

Answer 3

正如CommonsWare所说，您可以使用isExternalStorageManager()

Returns 调用应用程序是否具有主 shared/external 存储介质上的所有文件访问权限。声明权限 Manifest.permission.MANAGE_EXTERNAL_STORAGE 不足以获得访问权限。要请求访问权限，请使用 android.provider.Settings.ACTION_MANAGE_APP_ALL_FILES_ACCESS_PERMISSION.

例子

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
        if(!Environment.isExternalStorageManager())
        {
              try {
                    Intent intent = new Intent(Settings.ACTION_MANAGE_APP_ALL_FILES_ACCESS_PERMISSION);
                    intent.addCategory("android.intent.category.DEFAULT");
                    intent.setData(Uri.parse(String.format("package:%s", getApplicationContext().getPackageName())));
                    storagePermissionRequest.launch(intent);
                } catch (Exception e) {
                    Intent intent = new Intent();
                    intent.setAction(Settings.ACTION_MANAGE_ALL_FILES_ACCESS_PERMISSION);
                    storagePermissionRequest.launch(intent);
                }
        }
    }

结果合同。 ActivityResultContracts

ActivityResultLauncher<Intent> storagePermissionRequest = registerForActivityResult(
            new ActivityResultContracts.StartActivityForResult(),
            new ActivityResultCallback<ActivityResult>() {
                @Override
                public void onActivityResult(ActivityResult result) {
                    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
                        if (!Environment.isExternalStorageManager()) {
                            showPermissionDeniedDialog();
                        }
                    }
                }
            });

希望对大家有所帮助

如何检查 Manifest.permission.MANAGE_EXTERNAL_STORAGE 是否被授予？

How to check if Manifest.permission.MANAGE_EXTERNAL_STORAGE is granted?

android

android-manifest

android-permissions

android-10.0