Expansion files at Android 6

Question

On Android 6 devices, we've noticed that expansion files now need that we request the WRITE_EXTERNAL_STORAGE permission at runtime, which allows the user to deny, which doesn't allow us to continue with the app startup.

Is there a way to prevent the expansion files to use the WRITE_EXTERNAL_STORAGE or to prevent the user of denying?

If that request must appear when using expansion files, how are we supposed to handle that gracefully?

Explain to the user that your app does not work without that permission, and then request it again. — 1615903, Dec 15 '15 at 10:21
That's not possible, specially if they choose to never be asked about that again — Xavier Arias Botargues, Dec 15 '15 at 11:46

score 0 · Answer 1 · answered Apr 08 '16 at 17:12

I also have this problem. To resolve it for API 23 I download .obb file to private app's file directory instead of obb directory which my app hasn't access to. You can review my solution here . Usage:

repositories {
    maven { url 'https://dl.bintray.com/alexeydanilov/apk-expansion' }
}
dependencies {
    compile 'com.danikula.expansion:expansion:VERSION@aar'
    compile 'com.danikula.expansion:license:VERSION@aar'
    compile 'com.danikula.expansion:zip:VERSION@aar'
}

See the latest versions here.

score 0 · Answer 2 · answered Feb 15 '17 at 11:40

0

Seems to be a bug on Android 6.0

https://code.google.com/p/android/issues/detail?id=197287

answered Feb 15 '17 at 11:40

Emanuel Canha

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Expansion files at Android 6

2 Answers2