Android IPC Notes

Inter-process communication in Android:

Intent, ADIL, Messenger, ContentProvider, Socket, Shared File

Multiprocess in Android:

Generally speaking, an APP starts multiple processes.

Method: The four components add the android:process attribute to the Manifest

1）android:process=":abc"

APP's private process

2）android:process="edf"

You can share the same process with other APPs through shareUID, and the signatures of the APPs must be consistent.

Notes for APP opening multi-process:

1) Application will be initialized multiple times and there are multiple instance objects.

2) Concurrent synchronization code problem

3) Shared memory problem

4) Singleton problem

5) Activity stack problem