Grant permission required for EXTERNAL_STORAGE in Android M?

Question

Will the Android permissions WRITE_EXTERNAL_STORAGE and READ_EXTERNAL_STORAGE trigger the new grant permission dialog of Android M?

Answer 1

According to the docs:

Limited Permissions Granted at Install Time: When the user installs or updates the app, the system grants the app all permissions that the app requests that fall under PROTECTION_NORMAL.

So because READ_EXTERNAL_STORAGE is falling under PROTECTION_NORMAL , it won't trigger the dialog.

But because the level of WRITE_EXTERNAL_STORAGE is PROTECTION_DANGEROUS, it will fall under this behavior as described in docs:

User Grants Permissions at Run-Time: When the app requests a permission, the system shows a dialog to the user, then calls the app's callback function to notify it whether the permission was granted. If a user grants a permission, the app is given all permissions in that permission's functional area that were declared in the app manifest

Here is the sources for the protection level:

detailed list