CODEWITHSUNDEEP
android
perumal316
perumal316

Reputation: 1169

Application A accessing a textfile stored in Application B's Internal Memory

My app (App A) need to write a textfile which will be stored under another app's(App B) internal memory. Any idea how to implement this?

I have tried the following:

Under both the AndroidManifest.xml file, I have specified the same android:sharedUserId.

From App A, I used:

filePath = getPackageManager().getPackageInfo("packagename of App B", 0).applicationInfo.dataDir;

to get the path and I have confirmed that the path is correct for App B's internal memory.

But I am getting "java.io.IOException: Permission Denied".

Any idea where I have made mistake?

Upvotes: 0

Views: 194

Answers (1)

Sterpu Mihai
Sterpu Mihai

Reputation: 618

According to official documentation here,

Technically, another app can read your internal files if you set the file mode to be readable. However, the other app would also need to know your app package name and file names.

It's a do-able thing.

So, create a File object with your filepath and call setReadable on it.

Also, check you're not creating the file with MODE_PRIVATE.

Upvotes: 1

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