Default value was not returned when decode type and encode type mismatch

[jianzhongli]

If we write some data of type A and read it as type B with the same key, unexpected value will be returned. For example:

MMKV kv = MMKV.mmkvWithID(mmapID, MMKV.SINGLE_PROCESS_MODE, cryptKey);
kv.encode("bool", true);
int val = kv.decodeInt("bool", 100);
System.out.println("decode int with key bool: " + val);

The terminal will print decode int with key bool: 1. That is kind of misleading since we never store any int value with key "bool", meanwhile there was no error or exception thrown when we are doing this implicit casting.

Is this an intentional design?

[lingol]

Yes. MMKV does type erasure while storing values. That means type mismatch detection is impossible.