退出应用程序使用硬件后退按钮从特定页面使用IONIC 3开发

2 回答

• 2

  @Neotrixs登录后，将 HomeTabsPage 设置为 Root Page . 它会阻止您的应用返回 LoginPage .
  对于硬件后退按钮，我通过以下方法完成：

  /* REGISTERING BACK BUTTON TO HANDLE HARDWARE BUTTON CLICKED */
    registerBackButton(){
      let backButton = this.platform.registerBackButtonAction(() => {
        var stackSize = this.nav.length();
        if(stackSize < 1)
          this.askForPressAgain();
        else
          this.nav.pop();  
      },1);
  
    }
  
    /*ASKING FOR PRESS BACK BUTTON AGAIN*/
    askForPressAgain(){
      let view = this.nav.getActive();
      if (view.component.name == 'ProjectsPage' || view.component.name == 'LoginPage') {
        if ((new Date().getTime() - this.lastTimeBackPress) < this.timePeriodToExit) {
          this.platform.exitApp(); //Exit from app
        } else {
          this.toast.showBottomToast(BACK_BTN_MESSAGE);
          this.lastTimeBackPress = new Date().getTime();
        }
      }
  

  }

  在上面的代码中，我首先检查了 Stack Size ，如果它小于1，则显示Toast以确认离开应用程序 .
  希望它能帮助你或其他人 .

  回复于 2024-05-02T09:57:25+08:00
• -1

  Ionic最新版本3.xx

  app.component.ts文件：

  import { Platform, Nav, Config, ToastController } from 'ionic-angular';
  
  constructor(public toastCtrl: ToastController, public platform: Platform) {
      platform.ready().then(() => {
          //back button handle
          //Registration of push in Android and Windows Phone
          var lastTimeBackPress = 0;
          var timePeriodToExit  = 2000;
  
          platform.registerBackButtonAction(() => {
              // get current active page
              let view = this.nav.getActive();
              if (view.component.name == "TabsPage") {
                  //Double check to exit app
                  if (new Date().getTime() - lastTimeBackPress < timePeriodToExit) {
                      this.platform.exitApp(); //Exit from app
                  } else {
                      let toast = this.toastCtrl.create({
                          message:  'Press back again to exit App?',
                          duration: 3000,
                          position: 'bottom'
                      });
                      toast.present();
                      lastTimeBackPress = new Date().getTime();
                  }
              } else {
                  // go to previous page
                  this.nav.pop({});
              }
          });
      });
  }
  

  回复于 2024-05-02T09:57:25+08:00