未显示WRITE_EXTERNAL_STORAGE的权限对话框 [英] Permission dialog is not shown for WRITE_EXTERNAL_STORAGE

问题描述

我要使用DownloadManager下载文件.并且DownloadManager想要WRITE_EXTERNAL_STORAGE权限. 我在AndroidManifest.xml中包含了WRITE_EXTERNAL_STORAGE权限.此外，我尝试在运行时获得此权限.

I want to download a file using DownloadManager. And DownloadManager wants to WRITE_EXTERNAL_STORAGE permission. I have included the WRITE_EXTERNAL_STORAGE permission in AndroidManifest.xml. Furthermore, I try to take this permission on runtime.

onRequestPermissionsResult回调.没有显示请求权限弹出窗口.

onRequestPermissionsResult callback is called immediately after the request permission. The request permission popup didn't display.

但是，在onRequestPermissionsResult上grantResult[0]的值是 PERMISSION_DENIED .但是权限弹出式窗口"没有显示.

However, the value of the grantResult[0] on the onRequestPermissionsResult is PERMISSION_DENIED. But THE PERMISSION POPUP ISN'T EVEN SHOWN.

我这样检查权限:

public  boolean isStoragePermissionGranted() {
    if (Build.VERSION.SDK_INT >= 23) {
        if (checkSelfPermission(getContext(), android.Manifest.permission.WRITE_EXTERNAL_STORAGE)
                == PackageManager.PERMISSION_GRANTED) {
            Log.v(TAG,"Permission is granted");
            return true;
        } else {

            Log.v(TAG,"Permission is revoked");
            ActivityCompat.requestPermissions(getActivity(), new String[]{android.Manifest.permission.WRITE_EXTERNAL_STORAGE}, WRITE_EXTERNAL_PERMISSION_REQUEST_CODE);
            return false;
        }
    }
    else {
        Log.v(TAG,"Permission is granted");
        return true;
    }
}

这是权限请求的回调:

@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
    super.onRequestPermissionsResult(requestCode, permissions, grantResults);
    switch (requestCode) {
        case WRITE_EXTERNAL_PERMISSION_REQUEST_CODE: {
            if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                downloadFile();
            }
            break;
        }
    }
}

当我尝试使用READ_EXTERNAL_STORAGE权限时，我可以获取该权限，但对于WRITE_EXTERNAL_STORAGE权限却无效.

When I have tried for READ_EXTERNAL_STORAGE permission, I could take that permission but it didn't work for WRITE_EXTERNAL_STORAGE permission.

我也尝试过 @MetaSnarf的解决方案.但是什么都没有改变.

Also, I have tried @MetaSnarf's solution. But nothing has changed.

您对这种情况有任何想法吗?

Have you any idea about this situation?

推荐答案

您的一个依赖项可能会导致该问题.您可以在清单中替换权限.

One of your dependency can cause that problem. You can replace permission in your manifest.

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" tools:node="replace" />

这篇关于未显示WRITE_EXTERNAL_STORAGE的权限对话框的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！