Android Question how to share my text1.txt for app2?android:grantUriPermissions="true"

[xiaoyao]

app1 read app2 text file,how to do?
I found some related technical articles and code snippets on the Internet, but I don't know if they can run.
I hope someone with experience can help test it or is there a "class library" component that has been successfully implemented within B4A that can be called?

<manifest>
    <application>
        <provider
            android:name="androidx.core.content.FileProvider"
            android:authorities="${applicationId}.provider"
            android:exported="false"
            android:grantUriPermissions="true">
            <meta-data
                android:name="android.support.FILE_PROVIDER_PATHS"
                android:resource="@xml/file_paths" />
        </provider>
    </application>
</manifest>

or use SharedPreferences?
SharedPreferences is a tool used in Android to save lightweight key-value pair data. It can be used to save user preference settings, login information, application configuration and other needs. It is implemented based on XML files, can achieve fast read and write operations, and is suitable for storing some simple data.

 

[xiaoyao]

i found some,try it
[class] FileProvider - share files | B4X Programming Forum

[class] FileProvider - share files

Edit: FileProvider is included as an internal library now. After investigating several issues with the current FileProvider code that you can find in the forum, I decided to make some improvements and implement it in a class. Starting from Android 7 (API 24) you cannot directly share file uris...

www.b4x.com

 

[xiaoyao]

https://developer.android.google.cn/training/secure-file-sharing/setup-sharing?hl=nb
Cit read by other app like:
file.readstring("content://com.example.myapp.fileprovider/myimages/txt.txt")
can write edit file by other app?

 

[Erel]

Yes, if the user uses ContentChooser to choose the file. Or with ExternalStorage. Both require the user to select the folder or file.