MMKV是否支持多个App之间的通信

[IversonTang1997]

问一下MMKV是否支持多个App之间的通信？目前我试了一个App作为Client去连接另一个App的Service， Service传递ParcelableMMKV后，Client拿到MMKV对象进行通信。现在遇到的问题是Client和Service同时写数据时有报错<MMKV_I0.cpp:198::partialLoadFromFile> m_crcDigest[3512422925] != m_metaInm_crcDigest[2379569]，这个有办法解决吗

[lingol]

I don't think you can pass an read-write Parcel object between processes.
The only way you can share MMKV between multiple Apps is for these Apps to have access to the same folder/file path.

[IversonTang1997]

感谢解答，我试一试

[IversonTang1997]

测试mmkvdemo中的MainActivity prepareInterProcessAshmem Case。在client和service高频写数据的情况下，也有这个报错。client和service只有一方写数据的情况下没有报错

2025-08-12 11:28:06.865 13476-13476 MMKV com.tencent.mmkvdemo E <MMKV_IO.cpp:190::partialLoadFromFile> m_crcDigest[3698589049] != m_metaInfo->m_crcDigest[3447883939]
2025-08-12 11:28:06.865 13476-13476 MMKV com.tencent.mmkvdemo I MMKV.cpp:314::clearMemoryCache clearMemoryCache [tetAshmemMMKV]
2025-08-12 11:28:06.865 13476-13476 MMKV com.tencent.mmkvdemo I <MMKV_IO.cpp:258::loadMetaInfoAndCheck> meta file [tetAshmemMMKV] has flag [0]
2025-08-12 11:28:06.865 13476-13476 MMKV com.tencent.mmkvdemo I <MMKV_IO.cpp:91::loadFromFile> loading [tetAshmemMMKV] with 92935 actual size, file size 10485760, InterProcess 1, meta info version:4
2025-08-12 11:28:06.865 13476-13476 MMKV com.tencent.mmkvdemo I <MMKV_IO.cpp:96::loadFromFile> loading [tetAshmemMMKV] with crc 3447883939 sequence 8 version 4

[lingol]

Indeed. Looks like ashmem MMKV has been malfunction for some time. I will investigate it next week.

[lingol]

It's fixed on the dev branch. You can try it.

[IversonTang1997]

测试没问题了，感谢大佬