android外部文件,android – 如何在外部缓存目录中为文件设置FileProvider

对于Cache目录中的文件,我可以在xml中添加它来设置FileProvidername="image"path="image/"/>但是,如果我在外部缓存目录中存储文件,我无法获得外部缓存路径标记或类似的东西来设置FileProvider.Andname="image_external"path="cache/image/"/>也没有帮助.这是我的清单文件：android:name=

蓝小狗

2770人浏览 · 2021-05-28 15:45:01

蓝小狗 · 2021-05-28 15:45:01 发布

对于Cache目录中的文件,我可以在xml中添加它来设置FileProvider

name="image"

path="image/"/>

但是,如果我在外部缓存目录中存储文件,我无法获得外部缓存路径标记或类似的东西来设置FileProvider.And

name="image_external"

path="cache/image/"/>

也没有帮助.

这是我的清单文件：

android:name="android.support.v4.content.FileProvider"

android:authorities="com.tizi.quanzi"

android:exported="false"

android:grantUriPermissions="true">

android:name="android.support.FILE_PROVIDER_PATHS"

android:resource="@xml/file_paths"/>

这是xml / file_paths文件：

name="image"

path="image/"/>

name="image_external"

path="cache/image/"/>

这是我的代码：

String RootPath = App.getApplication().getExternalCacheDir().getAbsolutePath();

String filePath = RootPath + "/image/" + fileName;

// done something there to save file

Intent shareIntent = new Intent();

Uri contentUri = FileProvider.getUriForFile(App.getApplication(),

App.getApplication().getPackageName(), new File(filePath));

App.getApplication().grantUriPermission(App.getApplication().getPackageName(),

contentUri, Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);

shareIntent.setData(contentUri);

shareIntent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);

shareIntent.setAction(Intent.ACTION_SEND);

shareIntent.putExtra(Intent.EXTRA_STREAM, contentUri);

shareIntent.setType("image/*");

activity.startActivity(Intent.createChooser(shareIntent, "share image"));

这是错误信息：

/AndroidRuntime: FATAL EXCEPTION: main

Process: com.tizi.quanzi, PID: 27487

java.lang.IllegalArgumentException: Failed to find configured root that contains /storage/emulated/0/Android/data/com.tizi.quanzi/cache/image/o9xygODHtdP6HXqsuUZghVCsBKTtY4FJgO1MpnmX.jpg

at android.support.v4.content.FileProvider$SimplePathStrategy.getUriForFile(FileProvider.java:678)

at android.support.v4.content.FileProvider.getUriForFile(FileProvider.java:377)

at com.tizi.quanzi.tool.ShareImage.shareImage(ShareImage.java:67)

at com.tizi.quanzi.tool.ShareImage.shareImage(ShareImage.java:61)

at com.tizi.quanzi.adapter.GalleryAdapter$2.onClick(GalleryAdapter.java:119)

at android.support.v7.app.AlertController$AlertParams$3.onItemClick(AlertController.java:956)

at android.widget.AdapterView.performItemClick(AdapterView.java:310)

at android.widget.AbsListView.performItemClick(AbsListView.java:1145)

at android.widget.AbsListView$PerformClick.run(AbsListView.java:3042)

at android.widget.AbsListView$3.run(AbsListView.java:3879)

at android.os.Handler.handleCallback(Handler.java:739)

at android.os.Handler.dispatchMessage(Handler.java:95)