demo/index.html

<!DOCTYPE html>
<html>
<head>
  <meta charset="UTF-8">
  <meta name="format-detection" content="telephone=no">
  <meta name="viewport" content="initial-scale=1, width=device-width, height=device-height, viewport-fit=cover">
  <style>
    * {
      -webkit-tap-highlight-color: rgba(0, 0, 0, 0); /* make transparent link selection, adjust last value opacity 0 to 1.0 */
    }

    body {
      -webkit-touch-callout: none; /* prevent callout to copy image, etc when tap to hold */
      -webkit-text-size-adjust: none; /* prevent webkit from resizing text to fit */
      -webkit-user-select: none; /* prevent copy paste, to allow, change 'none' to 'text' */
      background-color: #E4E4E4;
      font-family: 'HelveticaNeue-Light', 'HelveticaNeue', Helvetica, Arial, sans-serif;
      font-size: 16px;
      height: 100%;
      padding: 0;
      margin: 0;
      width: 100%;
    }

    #header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      background-color: #DDDDDD;
      border-bottom: 1px solid #BBBBBB;
      height: 60px;
      z-index: 2;
    }

    #header #title {
      position: absolute;
      top: 20px;
      left: 20px;
    }

    #header #toggleChat {
      position: absolute;
      top: 26px;
      background-color: #eee;
      right: 0;
      font-size: 12px;
      text-decoration: underline;
      padding: 2px;
      border-radius: 2px;
    }

    #header #focusMessenger {
      position: absolute;
      top: 26px;
      background-color: #eee;
      right: 44px;
      font-size: 12px;
      text-decoration: underline;
      padding: 2px;
      border-radius: 2px;
    }

    #header #updateMessenger {
      position: absolute;
      top: 26px;
      background-color: #eee;
      right: 86px;
      font-size: 12px;
      text-decoration: underline;
      padding: 2px;
      border-radius: 2px;
    }

    #messages {
      width: 96%;
      left: 2%;
      position: absolute;
      top: 60px;
      bottom: 0;
      overflow-y: scroll;
    }

    .message {
      width: 100%;
      padding: 4px 0;
    }

    .right {
      text-align: right;
    }

    .message span {
      width: 65%;
      padding: 14px 10px;
      border-radius: 5px;
      display: inline-block;
      /*margin: 0 20px;*/
      text-align: left;
    }

    .message div {
      padding: 6px 10px;
      display: inline-block;
      margin: 0 20px 8px 20px;
      color: #BBBBBB;
      font-size: 12px;
    }

    .message.left span {
      background-color: #CCCCCC;
    }

    .message.right span {
      color: #FFFFFF;
      background-color: #007AFF;
    }
  </style>
  <script>
    window.onerror = function(a,b,c) {
      alert(a);
      alert(c);
    }
    function appendMessage(message) {
      message = message.split("\n").join("<br/>");
      var messages = document.getElementById("messages");
      messages.innerHTML = messages.innerHTML + '<div class="message right"><span>' + message + '</span><div>10/20/16, 5:21 PM</div></div>';
      // scroll down the page so the message is shown
      messages.scrollTop = messages.scrollHeight;
    }
  </script>
  <title>Native Keyboard demo</title>
</head>
<body>

<div id="header">
  <div id="title">Chatting with John</div>
  <div id="toggleChat" onclick="toggleChat()">Toggle</div>
  <div id="focusMessenger" onclick="showMessengerKeyboard()">Focus</div>
  <div id="updateMessenger" onclick="updateMessenger()">Update</div>
</div>

<div id="messages">
  <div class="message left"><span>Long time no chat!</span>
    <div>10/19/16, 2:18 AM</div>
  </div>
  <div class="message right"><span>Yeah likewise ;)</span>
    <div>10/20/16, 4:15 PM</div>
  </div>
  <div class="message left"><span>Hey man, how are you?</span>
    <div>10/20/16, 4:18 PM</div>
  </div>
  <div class="message right"><span>Good, thanks, how are you?</span>
    <div>10/20/16, 4:20 PM</div>
  </div>
  <div class="message left"><span>Meh.. could be better. I'm out of beer 🍺. Do you have any left?</span></div>
  <div class="message left"><span>.. please!</span>
    <div>10/20/16, 4:21 PM</div>
  </div>
  <div class="message right"><span>Lemme check..</span></div>
  <div class="message right"><span>Dude! I have 2 sixpacks stacked in the fridge - come over! 🍻</span>
    <div>10/20/16, 4:23 PM</div>
  </div>
  <div class="message left"><span>Right on! Let's party 🎉 🎉</span>
    <div>10/20/16, 4:23 PM</div>
  </div>
</div>

<script type="text/javascript" src="cordova.js"></script>

<script>
  function hideMessenger() {
    NativeKeyboard.hideMessenger({
      animated: true
    });
  }

  function updateMessenger() {
    var options = {
      text: "This is the updated text! ",
      showKeyboard: true,
      caretIndex: 10 // caret is set at end of text if not specified
    };

    NativeKeyboard.updateMessenger(
        options,
        // optional success and error handlers
        function(){},
        function(){});
  }

  function showMessengerKeyboard() {
    NativeKeyboard.showMessengerKeyboard(function(){}, function(){});
  }

  function showMessenger() {
    var options = {
      onSubmit: function (text) {
        console.log("onSubmit: " + text);
        appendMessage(text);
      },
      onKeyboardWillShow: function (height) {
        console.log("keyboard will show, height is: " + height);
        //appendMessage("keyboard will show, height is: " + height);
      },
      onKeyboardDidShow: function (height) {
        console.log("keyboard shows, height is: " + height);
        //appendMessage("keyboard shows, height is: " + height);
      },
      onMessengerBarHeightChanged: function (height) {
        console.log("messenger bar height changed to: " + height);
        //appendMessage("keyboard shows, height is: " + height);
      },
      onKeyboardWillHide: function () {
        console.log("keyboard will hide");
      },
      onKeyboardDidHide: function () {
        console.log("keyboard did hide");
      },
      onTextChanged: function(newText) {
        console.log("text changed to: " + newText);
        //appendMessage(newText);
      },
      onContentHeightChanged: function(heightDiff) {
        console.log("content height changed by: " + heightDiff);
      },
      showKeyboard: true,
      type: "twitter", // iOS only, default (default) | decimalpad | phonepad | numberpad | namephonepad | number | email | twitter | url | alphabet | search | ascii
      appearance: "light", // iOS only,  light (default) | dark
      secure: false, // iOS only,  default false, disables things like Emoji and Predicive text entry
      autocorrectionEnabled: false, // on iOS this hides the 'predictive text' bar
      scrollToBottomAfterMessengerShows: true,
      autoscrollElement: document.getElementById("messages"), // default unset
      keepOpenAfterSubmit: true, // default false
      animated: true,
      text: "This has been prefilled",
      placeholder: 'Type your message..',
      placeholderColor: "#DDDDDD",
      suppressSuggestions: true, // default true
      textViewBackgroundColor: "#F6F6F6",
      backgroundColor: "#F6F6F6", // default #F7F7F7
      textViewBorderColor: "#777777", // iOS only
      maxChars: 140, // setting this > 0 will make the counter show up on iOS (and ignore input on Android, for now)
      counterStyle: 'countdownreversed', // iOS only currently, note that 'none' still shows a counter in case maxChars is set
      textColor: '#555555',

      // this button is best suited for picking media (camera / cameraroll / last image) from an actionsheet
      leftButton: {
        type: 'ionicon', // or 'text' (Android only currently) or 'fontawesome'
        value: '\uf48a', // http://ionicons.com/ - right-click and inspect the :before value (don't forget the \uf !)
        //color: '#ff0000', // default blue on iOS, grey on Android
        textStyle: 'normal', // if type is 'text', you can set this to 'normal' (default), 'bold', 'italic'
        disabledWhenTextEntered: false, // default false
        onPress: function () {
          if (window.plugins && window.plugins.actionsheet) {
            window.plugins.actionsheet.show({
              androidTheme: window.plugins.actionsheet.ANDROID_THEMES.THEME_DEVICE_DEFAULT_LIGHT,
              buttonLabels: ['Take Photo or Video', 'Use Last Photo Taken', 'Choose From Library'],
              addCancelButtonWithLabel: 'Cancel'
            }, function(index) {
              if (index != 4) { // which is 'cancel'
                console.log("Picked index " + index + ".. you'll need to implement the rest yourself ;)");
              }
            });
          } else {
            alert("Left button pressed - if you install cordova-plugin-actionsheet you'll see a nice ActionSheet in this demo.");
          }
        }
      },
      rightButton: {
        type: 'text', // or 'fontawesome' or 'ionicon', default 'text'
        value: 'Send', // 'fa-battery-quarter', // '\uf2c3', // 'Send', // default 'Send'
        textStyle: 'bold', // 'normal' (default), 'bold', 'italic'
        //color: '#FF0000', // default iOS blue
        onPress: function () {
          console.log("Right button was pressed - text was passed to 'onSubmit' if provided.");
        }
      }
    };

    var onSuccess = function () {
      console.log("Show Messenger succeeded!");
    };

    var onError = function (message) {
      console.log("Got error message: " + message);
    };

    NativeKeyboard.showMessenger(options, onSuccess, onError);
  }

  function toggleChat() {
    if (chatShowing) {
      hideMessenger();
    } else {
      showMessenger();
    }
    chatShowing = !chatShowing;
  }

  var chatShowing = true;

  if (chatShowing) {
    document.addEventListener('deviceready', showMessenger, false);
  }

  //setTimeout(function() {
  //    NativeKeyboard.hideMessengerKeyboard();
  //}, 5000);

</script>
</body>
</html>