Pur*_*nut 5 lifecycle ondestroy flutter
我试图检测应用程序关闭时颤动。飞镖有什么办法吗?
我尝试使用WidgetsBindingObserver
但 flutter 只能检测 AppLifecycleState 的paused、inactive(我相信在 IOS 上)、resumed和detached。
class ChatScreenState extends State<ChatScreen> with WidgetsBindingObserver{
@override
void didChangeAppLifecycleState(AppLifecycleState state) {
super.didChangeAppLifecycleState(state);
setState(() {
_notification = state;
});
switch (state) {
case AppLifecycleState.paused:
print('paused');
break;
case AppLifecycleState.inactive:
print('inactive');
break;
case AppLifecycleState.resumed:
print('resumed');
break;
case AppLifecycleState.detached:
print('detached');
break;
}
}
}
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我尝试关闭我的应用程序,它的打印仅暂停。
我想要做的是当应用程序在聊天屏幕上关闭时。我想在我的firestore上写点东西。但我找不到办法做到这一点。
编辑:我所说的关闭是指我自己故意关闭应用程序。(按主页键并向上滑动)
这是应用程序关闭时的终端日志
D/EGL_emulation( 9248): eglMakeCurrent: 0xdb81aba0: ver 3 0 (tinfo 0xdb80fa70)
I/flutter ( 9248): state = AppLifecycleState.paused <- after I try send app to background
I/flutter ( 9248): state = AppLifecycleState.inactive
I/flutter ( 9248): state = AppLifecycleState.resumed
D/EGL_emulation( 9248): eglCreateContext: 0xe39acc80: maj 3 min 0 rcv 3
D/EGL_emulation( 9248): eglMakeCurrent: 0xe39acc80: ver 3 0 (tinfo 0xd840fd90)
D/EGL_emulation( 9248): eglMakeCurrent: 0xdb81aba0: ver 3 0 (tinfo 0xdb80fa70)
D/EGL_emulation( 9248): eglMakeCurrent: 0xe39acc80: ver 3 0 (tinfo 0xd840fd90)
I/flutter ( 9248): state = AppLifecycleState.inactive
D/EGL_emulation( 9248): eglMakeCurrent: 0xdb81aba0: ver 3 0 (tinfo 0xdb80fa70)
I/flutter ( 9248): state = AppLifecycleState.paused <- after I close my app
Lost connection to device.
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PS 我是 StackOverflow 的新手,并且颤抖
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