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I have the following FileProvider in my manifest :
<provider
android:name="android.support.v4.content.FileProvider"
android:authorities="com.android.provider.DataSharing-1"
android:exported="false"
android:grantUriPermissions="true">
<meta-data
android:name="android.support.FILE_PROVIDER_PATHS"
android:resource="@xml/paths"/>
</provider>
I am getting the following exception on app launch :
java.lang.RuntimeException: Unable to get provider android.support.v4.content.FileProvider: java.lang.IllegalArgumentException: Name must not be empty
at android.app.ActivityThread.installProvider(ActivityThread.java:4793)
at android.app.ActivityThread.installContentProviders(ActivityThread.java:4385)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4325)
at android.app.ActivityThread.access$1500(ActivityThread.java:135)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1256)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5017)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.IllegalArgumentException: Name must not be empty
at android.support.v4.content.FileProvider$SimplePathStrategy.addRoot(FileProvider.java:644)
at android.support.v4.content.FileProvider.parsePathStrategy(FileProvider.java:587)
at android.support.v4.content.FileProvider.getPathStrategy(FileProvider.java:534)
at android.support.v4.content.FileProvider.attachInfo(FileProvider.java:352)
at android.app.ActivityThread.installProvider(ActivityThread.java:4790) ...
How do I resolve this ? Where did I miss specifying a name ?
Edit :
res/xml/paths.xml
<paths xmlns:android="http://schemas.android.com/apk/res/android">
<files-path android:name="my_images" android:path="images/"/>
</paths>
790
androidx.core.content.FileProvider. FileProvider is a special subclass of ContentProvider that facilitates secure sharing of files associated with an app by creating a content:// Uri for a file instead of a file:/// Uri. A content URI allows you to grant read and write access using temporary access permissions.
Create FileProvider Steps. Declare FileProvider provider component in AndroidManifest.xml file. Create a share folder xml file to indicate which folder will be shared. 2.1 Define FileProvider In AndroidManifest.xml.
You can use intent setFlags method to grant FileProvider access permission to other apps like below. If you set grantUriPermissions value to false, it will throw SecurityException (“Provider must grant uri permissions”). meta-data sub element : The provider meta-data sub element is used to specify the shared folder definition xml file.
Using FileProvider you can make your app files more secure in following ways. You can fully control which file to share to which app more accurately. Your app do not need to ask user to grant WRITE_EXTERNAL_STORAGE permission always. This can make your app more user friendly.
Remove the android: prefix from the attributes in your paths.xml file. It should look like:
<paths xmlns:android="http://schemas.android.com/apk/res/android">
<files-path name="my_images" path="images/"/>
</paths>
(and you can probably get rid of the xmlns:android bit too, since it's not used, though I have it in one of mine, perhaps because Eclipse put it there when creating the file...)
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