如何為android shell用戶授予更多權限？

Question

我用ndk構建了一些命令行工具，並在/ data / local / tmp中執行它。 現在，當我在命令行工具中調用一些OpenSLES API時，它會提示我“需要android.permission.RECORD_AUDIO”：

W/AudioRecord( 4226): AUDIO_INPUT_FLAG_FAST denied by client
W/ServiceManager(  207): Permission failure: android.permission.RECORD_AUDIO from uid=2000 pid=4226
E/        (  207): Request requires android.permission.RECORD_AUDIO
D/PowerManagerService(  964): handleSandman: canDream=false, mWakefulness=Asleep
E/AudioFlinger(  207): openRecord() permission denied: recording not allowed
E/AudioRecord( 4226): AudioFlinger could not create record track, status: -1
E/libOpenSLES( 4226): android_audioRecorder_realize(0x453430) error creating AudioRecord object
W/libOpenSLES( 4226): Leaving Object::Realize (SL_RESULT_CONTENT_UNSUPPORTED)

我也嘗試用pm授予shell：

pm grant "com.android.shell" android.permission.RECORD_AUDIO
pm grant "com.android.shell" android.permission.RECORD_AUDIO
pm grant "com.android.shell" android.permission.RECORD_AUDIO
Operation not allowed: java.lang.SecurityException: Package com.android.shell has not requested permission android.permission.RECORD_AUDIO

更改/system/etc/permissions/platform.xml也沒有效果。

我可以在android shell中調試我的OpenSLES演示嗎？ 如何在shell中獲得更多權限。

我必須為每個實驗代碼片段創建一個jni和java項目，並在更改某些C ++接口時將它們一起修改嗎？

我可以直接在shell的命令工具中訪問RECORD_AUDIO，CAMERA嗎？

Answer 1

這是Android Marshmallow中的新權限模型 。 要獲得此權限，您需要提示用戶授予權限。 這是我做的：

1. 每當我需要RECORD_AUDIO權限時，我都會檢查是否有它：

    private boolean hasRecordAudioPermission(){ boolean hasPermission = (ContextCompat.checkSelfPermission(this, Manifest.permission.RECORD_AUDIO) == PackageManager.PERMISSION_GRANTED); log("Has RECORD_AUDIO permission? " + hasPermission); return hasPermission; } 

2. 如果我沒有它，那么請求它

    private void requestRecordAudioPermission(){ String requiredPermission = Manifest.permission.RECORD_AUDIO; // If the user previously denied this permission then show a message explaining why // this permission is needed if (ActivityCompat.shouldShowRequestPermissionRationale(this, requiredPermission)) { showToast("This app needs to record audio through the microphone...."); } // request the permission. ActivityCompat.requestPermissions(this, new String[]{requiredPermission}, PERMISSIONS_REQUEST_RECORD_AUDIO); } @Override public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) { // This method is called when the user responds to the permissions dialog }