Android Java，FileProviders，getUriFromFile失败，并出现错误无法找到包含/storage/1018-2710/Pictures/Sarx7IIJi-o.jpg

问题描述

因此，我一直试图通过电子邮件（或任何其他应用程序）发送图片。我使用MediaStore API将图片加载到我的应用中。我有他们的绝对路径/storage/1018-2710/Pictures/Sarx7IIJi-o.jpg，但是当我尝试从他们那里获取Uri时，我收到一条错误消息，说 Failed to find configured root that contains /storage/1018-2710/Pictures/Sarx7IIJi-o.jpg

这是我的AppManifest

    <provider
            android:name="androidx.core.content.FileProvider"
            android:authorities="com.nikolam.fileprovider"
            android:exported="false"
            android:grantUriPermissions="true">
            <meta-data
                android:name="android.support.FILE_PROVIDER_PATHS"
                android:resource="@xml/file_paths" />
        </provider>

还有我的file_paths.xml，我拥有所有这些条目，因此我可以尝试对其进行正确调试

<?xml version="1.0" encoding="utf-8"?>
<paths>
    <external-path
        name="external"
        path="." />
    <external-files-path
        name="external_files"
        path="." />
    <external-files-path
        name="external_files_pictures"
        path="storage/1018-2710/Pictures/" />
    <cache-path
        name="cache"
        path="." />
    <external-cache-path
        name="external_cache"
        path="." />
    <files-path
        name="files"
        path="." />
    <external-media-path name="media" path="." />
    <files-path name="my_images" path="images/"/>
</paths>

这是我尝试获取URI的地方

  {
           File myFile = new File(mViewModel.selectedImages.get(0).getmImageUrl());
           MimeTypeMap mime = MimeTypeMap.getSingleton();
           String ext = myFile.getName().substring(myFile.getName().lastIndexOf(".") + 1);
           String type = mime.getMimeTypeFromExtension(ext);
           Intent sharingIntent = new Intent("android.intent.action.SEND");
           sharingIntent.setType(type);
           Uri contentUri = getUriForFile(requireContext(),"com.nikolam.fileprovider",myFile);
           sharingIntent.putExtra("android.intent.extra.STREAM",contentUri);
           startActivity(Intent.createChooser(sharingIntent,"Share using"));
}

我尝试了许多不同的路径和配置，但到目前为止都没有奏效。

这是有问题的项目https://github.com/Nikola-Milovic/GalleryClone

这就是我load images for reference

这是图像

之一

解决方法

With cte as
(select T.restaurant_id,array_to_string(array_agg(food_id),',') as food_list
from
(select *
  from Identifier t1
  order by restaurant_id,food_id) T
  group by T.restaurant_id)

select 
   --concat(r1.name,r2.name) as resturant_names,t1.restaurant_id as restaurant_id,r1.name as restaurant--,--t2.restaurant_id as restaurant_id2,--r2.name as restaurant_2,--t1.food_list as common_food_ids
from cte t1
join cte t2
on t1.restaurant_id = t2.restaurant_id
and t1.food_list = t2.food_list
left join Restaurants r1
on t1.restaurant_id = r1.restaurant_id
left join Restaurants r2
on t2.restaurant_id = r2.restaurant_id;

您的路径表明文件位于可移动Micro SD卡上。

不幸的是，FileProvider无法从可移动媒体提供文件。

您必须为此编写自己的ContentProvider。