Update Ionic-JavaScript API(2).md

Ionic-JavaScript API(2).md

@@ -536,3 +536,95 @@ angular.module('testApp', ['ionic'])
 ![$ionicPopover](http://7vijqz.com1.z0.glb.clouddn.com/ionicPopover.gif)
 
 
+
+### $ionicPopup
+
+> $ionicPopup 提供了3个方法：alert(), prompt(),以及 confirm() 。用法也非常简单！
+
+**HTML:**
+
+```javascript
+ <button class="button button-dark" ng-click="showPopup()">
+      show
+    </button>
+    <button class="button button-primary" ng-click="showConfirm()">
+      Confirm
+    </button>
+    <button class="button button-positive" ng-click="showAlert()">
+      Alert
+    </button>
+    
+    <script id="popup-template.html" type="text/ng-template">
+      <input ng-model="data.wifi" type="text" placeholder="Password">
+    </script>
+```
+
+**JavaScript:**
+
+```javascript
+.controller('PopupCtrl',function($scope, $ionicPopup, $timeout) {
+
+ // Triggered on a button click, or some other target
+ $scope.showPopup = function() {
+   $scope.data = {}
+
+   // An elaborate, custom popup
+   var myPopup = $ionicPopup.show({
+     template: '<input type="password" ng-model="data.wifi">',
+     title: 'Enter Wi-Fi Password',
+     subTitle: 'Please use normal things',
+     scope: $scope,
+     buttons: [
+       { text: 'Cancel' },
+       {
+         text: '<b>Save</b>',
+         type: 'button-positive',
+         onTap: function(e) {
+           if (!$scope.data.wifi) {
+             //don't allow the user to close unless he enters wifi password
+             e.preventDefault();
+           } else {
+             return $scope.data.wifi;
+           }
+         }
+       },
+     ]
+   });
+   myPopup.then(function(res) {
+     console.log('Tapped!', res);
+   });
+   $timeout(function() {
+      myPopup.close(); //close the popup after 3 seconds for some reason
+   }, 3000);
+  };
+   // A confirm dialog
+   $scope.showConfirm = function() {
+     var confirmPopup = $ionicPopup.confirm({
+       title: 'Consume Ice Cream',
+       template: 'Are you sure you want to eat this ice cream?'
+     });
+     confirmPopup.then(function(res) {
+       if(res) {
+         console.log('You are sure');
+       } else {
+         console.log('You are not sure');
+       }
+     });
+   };
+
+   // An alert dialog
+   $scope.showAlert = function() {
+     var alertPopup = $ionicPopup.alert({
+       title: 'Don\'t eat that!',
+       template: 'It might taste good'
+     });
+     alertPopup.then(function(res) {
+       console.log('Thank you for not eating my delicious ice cream cone');
+     });
+   };
+});
+```
+
+![ionicPopup](http://7vijqz.com1.z0.glb.clouddn.com/popup.gif)
+
+