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android: Forward suspended() and resumed() events and patch up platform-specific documentation (#3786)

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Key them off of `onStop()` and `onStart()` which seems to match the
other backends most closely.  These [Android Activity lifecycle] events
denote when the application is visible on-screen, and recommend that any
heavy lifting for startup and shutdown happens here, as the application
may be demoted to the background and later shut down entirely unless the
user navigates back to it.

[Android Activity lifecycle]: https://developer.android.com/guide/components/activities/activity-lifecycle
This commit is contained in:
Marijn Suijten
2024-10-16 12:17:59 +02:00
committed by GitHub
parent c23bed20b8
commit 7d77ccfad3
5 changed files with 79 additions and 61 deletions
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8
src/platform_impl/android/mod.rs
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@@ -218,11 +218,11 @@ impl EventLoop {
app.memory_warning(&self.window_target);
},
MainEvent::Start => {
// XXX: how to forward this state to applications?
warn!("TODO: forward onStart notification to application");
app.resumed(self.window_target());
},
MainEvent::Resume { .. } => {
debug!("App Resumed - is running");
// TODO: This is incorrect - will be solved in https://github.com/rust-windowing/winit/pull/3897
self.running = true;
},
MainEvent::SaveState { .. } => {
@@ -232,11 +232,11 @@ impl EventLoop {
},
MainEvent::Pause => {
debug!("App Paused - stopped running");
// TODO: This is incorrect - will be solved in https://github.com/rust-windowing/winit/pull/3897
self.running = false;
},
MainEvent::Stop => {
// XXX: how to forward this state to applications?
warn!("TODO: forward onStop notification to application");
app.suspended(self.window_target());
},
MainEvent::Destroy => {
// XXX: maybe exit mainloop to drop things before being