Ionic 2:如何处理在应用程序中检查退出确认的硬件后退按钮

Ionic 2: How to handle the hardware back button which checks confirmation of Exit in app(Ionic 2:如何处理在应用程序中检查退出确认的硬件后退按钮)
本文介绍了Ionic 2:如何处理在应用程序中检查退出确认的硬件后退按钮的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着跟版网的小编来一起学习吧!

问题描述

我面临一个问题,如何处理默认手机的后退按钮,该按钮在退出应用程序时检查确认,如果我按下后退按钮,应该调用一些显示弹出窗口的处理程序,以确认退出.或者有任何方法调用 registerBackButtonAction()?或者是如何在IONIC 2中使用它?请帮帮我.提前致谢.

I am facing an issue how to handle the default mobile's back button which checks the confirmation while exiting from the application, if I pressed the back button there should invoke some handler which shows pop-up, for confirm exiting. OR there is any method call registerBackButtonAction()? or is it so how to use it in IONIC 2,? Please help me out. Thanks in Advance.

推荐答案

这是我的解决和工作代码.谢谢大家.

This is my resolved and working Code. Thank you everyone.

constructor(platform: Platform,public alertCtrl: AlertController,public toastCtrl:ToastController) {
    platform.ready().then(()=>{
       platform.registerBackButtonAction(()=>this.myHandlerFunction());
       StatusBar.styleDefault();
      Splashscreen.hide();
})
  }

    myHandlerFunction(){
     let toast = this.toastCtrl.create({
      message: "Press Again to Confirm Exit",
      duration: 3000
    });
    toast.present(); 
     }

这篇关于Ionic 2:如何处理在应用程序中检查退出确认的硬件后退按钮的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持跟版网!

本站部分内容来源互联网,如果有图片或者内容侵犯您的权益请联系我们删除!

相关文档推荐

Android release APK crash with java.lang.AssertionError: impossible in java.lang.Enum(Android 发布 APK 因 java.lang.AssertionError 崩溃:在 java.lang.Enum 中不可能)
Finished with Non Zero Exit Value 3(以非零退出值 3 结束)
On gradle:3.0.0 More than one file was found with OS independent path #39;META-INF/ASL2.0#39;(在 gradle:3.0.0 上找到多个文件,其独立于操作系统的路径为“META-INF/ASL2.0)
Android : app loading library at runtime on Lollipop but not IceCreamSandwich(Android:运行时在 Lollipop 上而不是 IceCreamSandwich 上的应用程序加载库)
buildConfigField depending on flavor + buildType(buildConfigField 取决于风味 + buildType)
How do I suppress warnings when compiling an android library with gradle?(使用 gradle 编译 android 库时如何抑制警告?)