SYSTEM_ALERT_WINDOW 的運行時權限

Question

當用戶第一次打開應用程序時，我需要自動獲取用戶權限以獲得以下權限

1. 電話
2. 通話記錄
3. 總在最前面

電話工作正常。 如何獲得始終處於最高權限的權限

主要活動

protected void onCreate(Bundle savedInstanceState) {
    if (ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.SYSTEM_ALERT_WINDOW)
            != PackageManager.PERMISSION_GRANTED) {
        ActivityCompat.requestPermissions(MainActivity.this, new String[]{Manifest.permission.SYSTEM_ALERT_WINDOW}, 1);
    }
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
}

顯現

<uses-permission android:name="android.permission.READ_CALL_LOG" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.PROCESS_OUTGOING_CALLS"/>
<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />

Answer 1

沒有為此目的的運行時權限/對話框，您必須將用戶傳遞給應用程序設置

public boolean checkStartPermissionRequest() {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
        if (!Settings.canDrawOverlays(this)) {
            Intent intent = new Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION,
                Uri.parse("package:" + getPackageName()));
            startActivityForResult(intent, ACTION_MANAGE_OVERLAY_PERMISSION_REQUEST_CODE);
            return false; // above will start new Activity with proper app setting
        }
    }
    return true; // on lower OS versions granted during apk installation
}

更多信息在這里