kotlinx-coroutines-android

Provides Dispatchers.Main context for Android applications.

Read Guide to UI programming with coroutines for tutorial on this module.

Optimization

R8 and ProGuard rules are bundled into this module. R8 is a replacement for ProGuard in Android ecosystem, it is enabled by default since Android gradle plugin 3.4.0 (3.3.0-beta also had it enabled). For best results it is recommended to use a recent version of R8, which produces a smaller binary.

When optimizations are enabled with R8 version 1.6.0 or later the following debugging features are permanently turned off to reduce the size of the resulting binary:

  • ../../docs/debugging.md#debug-mode

  • ../../docs/debugging.md#stacktrace-recovery

  • The internal assertions in the library are also permanently removed.

You can examine the corresponding rules in this resources/META-INF/com.android.tools/r8-from-1.6.0/coroutines.pro file.

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Provides Dispatchers.Main context for Android applications.