HTML5

Using Event with Polymer

Categories: HTML5; Tagged with: HTML5 • Polymer; @ October 15th, 2015 22:26

Dispatching Event:

<link rel="import" href="../bower_components/polymer/polymer.html" />
<link rel="import" href="../bower_components/iron-icons/iron-icons.html" >
<link rel="import" href="../bower_components/paper-button/paper-button.html" />

<dom-module id="item-detail">
    <template>
        <div id="container">
            <h3>{{item_id}}</h3>
        </div>
        <paper-button on-tap="onAddToCart"><iron-icon icon="icons:shopping-cart"></iron-icon>AddToCart</paper-button>
    </template>

    <script>
        Polymer({
            is: 'item-detail',

            properties: {
                item_id: {
                    type:Number,
                    value:-1
                }
            },
            onAddToCart: function(e) {
                console.log('adding...');
                this.fire('eventAddToCart', {item_id: this.item_id});
            }
        });
    </script>
</dom-module>

Event Listener:

<link rel="import" href="bower_components/polymer/polymer.html" />
<link rel="import" href="element/item-detail.html">

<dom-module id="main-app">
    <template>
        <item-detail id="item_detail" item_id="{{current_detail_id}}"></
    </template>
    <script>
        Polymer({
            is: 'main-app',

            listeners: {
                'item_detail.eventAddToCart': 'onAddToCart'
            },

            onAddToCart: function(e) {
                console.log('Event received' + e.detail.item_id);
                // this.addToCart(e.detail.item_id);
            }
        });
    </script>
</dom-module>

Apache Cordova: Package/Build iOS/Andorid App from Polymer HTML5 Project

Categories: Android • Development Notes • HTML5; Tagged with: Android • Apache Cordova • HTML5 • iOS; @ July 21st, 2015 23:14

Requirement: Build iOS/Android app using existing Polymer project.

Solution:

There’re lots of tools/platforms to build an app from HTML5 project, such as Trigger.io, Intel XDK, PhoneGap, Apache Cordova. I choosed Cordova to build my first html app;

Install Apache Cordova by npm:
```
$ sudo npm install -g cordova
```

Create a Cordova project using cordova CLI;

$ cordova create hello com.liguoliang.app HelloWorld

Navigate to the project folder, add platform:
```
$ cordova platform add ios/android
```
Build project:
```
$ cordova build
```
Emulate the app:
```
$ cordova emulate ios/andorid
```

Note: It is required to install Xcode or Android SDK/Tools for simulating. you may follow the Cordova CLI message to installed the required sdk/tool.

> Apache Cordova CLI Document

HTML5 学习笔记: localStorage/sessionStorage

Categories: FrontEnd • HTML5; Tagged with: HTML5 • localStorage • sessionStorage • WebStorage; @ March 17th, 2012 19:17

HTML5新增的功能之一: 本地存储. 类似于Flex 的SharedObject.


localStorage.userName = data;  // Save data
var lastName = localStorage.userName; // Get data from local sotrage

>>Demo及代码<<

ref: http://www.w3schools.com/html5/html5_webstorage.asp