LOOPER_ID_MAIN

Looper data ID of commands coming from the app's main thread, which is returned as an identifier from ALooper_pollOnce(). The data for this identifier is a pointer to an android_poll_source structure. These can be retrieved and processed with android_app_read_cmd() and android_app_exec_cmd().

Looper data ID of events coming from the AInputQueue of the application's window, which is returned as an identifier from ALooper_pollOnce(). The data for this identifier is a pointer to an android_poll_source structure. These can be read via the inputQueue object of android_app.

Start of user-defined ALooper identifiers.