[kuschku]

Don’t worry, most current message apps have code that horrible.

Be it matrix simply writing a HashMap into a file as "database" replacement https://github.com/matrix-org/matrix-android-sdk/blob/master...

Or Signal simply taking apart Android system structs with JNI, to get a file descriptor’s owner https://github.com/signalapp/Signal-Android/blob/master/jni/...

There’s lots of suboptimal code in messaging apps. All of them.

[slowmotiony]

Why do you need a database over a serialized object like a hashmap file if there is only one user and one device?

[kuschku]

Because writing the entire dataset back out on every addition or removal is extremely wasteful.

The existing database implementations in the system do much less writes.

Doing such large, constant writes not only is slower, it also degrades the NAND.

[slowmotiony]

Thank you