Ionic 实现双击返回键退出功能

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Ionic 实现双击返回键退出功能

本文转自http://ionichina.com/topic/5514b539b6421f9166aa5f88，非常感谢 zxj963577494的分享，为方便自己日后查阅，特记录。

一、准备 Toast插件 插件地址：cordova plugin add https://github.com/EddyVerbruggen/Toast-PhoneGap-Plugin.git 二：代码

.run(function($ionicPlatform, $rootScope, $location, $timeout, $ionicHistory, $cordovaToast){
        $ionicPlatform.ready(function($rootScope){// Hide the accessory bar by default (remove this to show the accessory bar above the keyboard// for form inputs)if(window.cordova && window.cordova.plugins.Keyboard){
                cordova.plugins.Keyboard.hideKeyboardAccessoryBar(true);}if(window.StatusBar){// org.apache.cordova.statusbar requiredStatusBar.styleDefault();}});//双击退出
        $ionicPlatform.registerBackButtonAction(function(e){//判断处于哪个页面时双击退出if($location.path()=='/tab/news'){if($rootScope.backButtonPressedOnceToExit){
                    ionic.Platform.exitApp();}else{
                    $rootScope.backButtonPressedOnceToExit =true;
                    $cordovaToast.showShortTop('再按一次退出系统');
                    setTimeout(function(){
                        $rootScope.backButtonPressedOnceToExit =false;},2000);}}elseif($ionicHistory.backView()){
                $ionicHistory.goBack();}else{
                $rootScope.backButtonPressedOnceToExit =true;
                $cordovaToast.showShortTop('再按一次退出系统');
                setTimeout(function(){
                    $rootScope.backButtonPressedOnceToExit =false;},2000);}
            e.preventDefault();returnfalse;},101);})