我想检测应用程序在flutter上关闭。有任何方法可能在dart上吗?
我尝试使用 WidgetsBindingObserver
但flutter只能检测AppLifecycleState的 停顿, 懒散 我相信在IOS上)。恢复和 独立.
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;
}
}
}
我试着关闭我的应用程序,它只打印 停顿.
我想做的是当应用程序在聊天屏幕上关闭。我想在我的firestore上写点东西。但我找不到一个方法来做到这一点。
编辑:我说的是 封闭 就是我自己故意关闭应用。(按home键向上滑动)
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.
P.S.我是新来的StackOverflow,和flutter
对不起,没有。你只能检测被放在后台不被强制关闭。