Are Hive boxes shared with the other apps ?!

additional to my main question...

```
x.put('map1',{});
x.get('map1').addAll({'text':'test'});
print(x.get('map1'));//{'text':'test'}
```
the above code works perfectly, BUT the data are ONLY saved to the memory not the Disk..
if i relaunched my app again if i print it, it will be empty Map:
print(x.get('map1'));//{}

is there's a function or something to save the current "Temp Data That Exists in the Memory and it's reference are Hive" to disk ?

some thing like `x.save();` for the entire Hive instance ?

i want when i reopen my app i want `print(x.get('map1'));` prints `{'text':'test'}` , is this possible ?

why i want this ?
to reduce Memory usage and some big data will be in it ..

Thank you for the great plugin <3