Android adoptable storage was advertised as merging External SD with internal storage. Thus allowing people with limited internal storage to use external SD to boost their Internal Storage. (maybe similar to Windows Phone)
But in reality, Adoptable Storage is more similar to "Move App to SD" that already available in android since eons ago. I think since kitkat? Or maybe gingerbread. It also doesn't fix the limitation of "SD WRITE ACCESS" that was put since lollipop, despite adoptable storage was labeled as "internal storage". It actually still being treated as External SD.
Adoptable storage did not actualy merge external with internal storage. it just displays them as one storage. While in reality, they are still in a separate pool.
A few points:
no wonder Samsung and many other manufacturers prefer to disable Adoptable Storage by default. It simply wasn't ready for consumer.
it should works like Windows Phone.
But in reality, Adoptable Storage is more similar to "Move App to SD" that already available in android since eons ago. I think since kitkat? Or maybe gingerbread. It also doesn't fix the limitation of "SD WRITE ACCESS" that was put since lollipop, despite adoptable storage was labeled as "internal storage". It actually still being treated as External SD.
Adoptable storage did not actualy merge external with internal storage. it just displays them as one storage. While in reality, they are still in a separate pool.
A few points:
- Despite the merged internal storage (labeled as "internal storage") saying it have huge free space, app still can refuse to install due to "insufficient space" when the "real" internal storage is full.
- Android can goes into bootloop and/or crashy when the "real" internal storage is totally full.
- App that did not explicitly mention they support adoptable storage wont be automatically "migrated" to the expanded storage space.
- You can manually put apps into migrated storage space one by one, just like what you already can done using "move to sd" that already available on old android version.
- To make things more confusing, app that was moved to the expanded storage need to have SD Write/Media access declared to work properly. Case in point, SwiftKey will keep loosing its prediction and language data with Adoptable storage. Because it simply doesnt have the SD Write/Media access declared.
- Just like manufacturer can disable "move app to SD" feature from their ROM, manufacturer also can disable Adoptable storage.
no wonder Samsung and many other manufacturers prefer to disable Adoptable Storage by default. It simply wasn't ready for consumer.
it should works like Windows Phone.