Question

此程序需要访问相机和位置。但是，当设备需要同时请求时，它只请求其中一个权限，并且在我关闭程序然后重新打开之前不会请求另一个权限。我无法弄清楚这个问题。

StringIO

有人请帮忙！顺便说一句，我有意地从这个问题中省略了shouldShowRequestPermissionsRationale，以及onRequestPermissionsResult方法，因为我认为那些与问题无关。（我甚至尝试在onResume（）中调用request（），但是当一个权限被拒绝并且用户检查了“＃34;不再显示＆＃34;”时，这会导致无限循环。我完全没有想法。

Answer 1

另一个有效的解决方案是使用RxJava和RxPermission

所以你可以这样做：

res.write(data);
res.end();

或者您可以请求合并的每个权限：

rxPermissions
    .requestEach(Manifest.permission.CAMERA,
             Manifest.permission.ACCESS_FINE_LOCATION)
    .subscribe(permission -> { // will emit 2 Permission objects
        if (permission.granted) {
           // `permission.name` is granted !
        } else if (permission.shouldShowRequestPermissionRationale) {
           // Denied permission without ask never again
        } else {
           // Denied permission with ask never again
           // Need to go to the settings
        }
    });

Answer 2

使用Ted权限：

dependencies {
    compile 'gun0912.ted:tedpermission:2.1.0'
}

制作PermissionListener

PermissionListener permissionlistener = new PermissionListener() {
    @Override
    public void onPermissionGranted() {
        Toast.makeText(MainActivity.this, "Permission Granted", Toast.LENGTH_SHORT).show();
    }

    @Override
    public void onPermissionDenied(ArrayList<String> deniedPermissions) {
        Toast.makeText(MainActivity.this, "Permission Denied\n" + deniedPermissions.toString(), Toast.LENGTH_SHORT).show();
    }


};

启动TedPermission

//Change your permission in this section, you can add any number of permissions\\
// You can also check whether user has given the permission or not \\

TedPermission.with(this)
    .setPermissionListener(permissionlistener)
    .setDeniedMessage("If you reject permission,you can not use this service\n\nPlease turn on permissions at [Setting] > [Permission]")
    .setPermissions(Manifest.permission.READ_CONTACTS, Manifest.permission.ACCESS_FINE_LOCATION)
    .check();

欲了解更多信息，请访问

https://github.com/ParkSangGwon/TedPermission

希望它有所帮助。

Answer 3

请求两种权限的方法必须是requestBoth()：

protected void requestBoth() {
        ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.ACCESS_FINE_LOCATION, Manifest.permission.CAMERA}, MULT_KEY);
    }

将您的代码更改为：

 if ((ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) && (ContextCompat.checkSelfPermission(this, Manifest.permission.CAMERA) == PackageManager.PERMISSION_GRANTED)) {
         //requestUpdates();
          requestBoth();

    } 
    ...

Answer 4

现在，您可以像这样将它们全部放在一个String数组中

 ActivityCompat.requestPermissions((Activity) Login.this, new String[]{Manifest.permission.ACCESS_FINE_LOCATION, Manifest.permission.READ_PHONE_NUMBERS, Manifest.permission.READ_SMS}, 100);

我的程序一次只能请求1个权限

4 个答案: