Android 棉花糖请求权限？

Question

我目前正在开发一个需要多个“危险”权限的应用程序。所以我尝试按照Android Marshmallow(API级别23)的要求添加“请求许可”，但找不到如何做到这一点。

如何在我的应用中使用新的权限模型来请求权限？

Answer 1

Request runtime permissions文档中有您可以使用的代码示例。

此答案中的代码 fragment 取自该文档。

使用以下代码打开对话框:

ActivityCompat.requestPermissions(MainActivity.this,
                    new String[]{Manifest.permission.READ_EXTERNAL_STORAGE},
                    1);

获取Activity结果如下:

@Override public void onRequestPermissionsResult(int requestCode,
                                       String permissions[], int[] grantResults) {
    switch (requestCode) {
        case 1: {

          // If request is cancelled, the result arrays are empty.
          if (grantResults.length > 0
                    && grantResults[0] == PackageManager.PERMISSION_GRANTED) {

                // permission was granted, yay! Do the
                // contacts-related task you need to do.          
            } else {

                // permission denied, boo! Disable the
                // functionality that depends on this permission.
                Toast.makeText(MainActivity.this, "Permission denied to read your External storage", Toast.LENGTH_SHORT).show();
            }
            return;
        }

        // other 'case' lines to check for other
        // permissions this app might request
    } }

更多信息:https://developer.android.com/training/permissions/requesting.html