ionic文档：http://ionicframework.com/docs/api/platform/Platform/
ionViewDidLoad() {
this.platform.ready().then(() => {
this.platform.pause.subscribe(() => {
this.connectState = ‘disconnected’;
this.connected = false;
this.buttonDisabled = true;
});
this.platform.resume.subscribe(() => {
this.checkConnectivity();
});
}
2017.11.9
发现，取消订阅resume后，无法再次订阅，如果再次订阅就会报错：
Error: Uncaught (in promise): ObjectUnsubscribedError: object unsubscribed
我的写法：
ngOnInit() {
console.log("PlugConfigPage OnInit");
this.platformResume=this.platform.resume.subscribe(() => {
console.log("resume subscribe")
});
}
ngOnDestroy() {
console.log("PlugConfigPage OnDestroy");
this.platform.resume.unsubscribe();
}
其实这个写法是错误的，正确写法为：
ngOnInit() {
console.log("PlugConfigPage OnInit");
this.platformResume=this.platform.resume.subscribe(() => {
console.log("resume")
});
}
ngOnDestroy() {
console.log("PlugConfigPage OnDestroy");
this.platformResume.unsubscribe();
}