【问题标题】:How to handle Orientation Change in Sencha Touch V2Sencha Touch V2 中如何处理方向变化
【发布时间】:2011-12-16 23:44:31
【问题描述】:

我有一个面板,如果方向发生变化,它需要执行一些 Javascript。如何处理 中的方向变化?

这基本上是我要开始工作的关键路线

this.on('orientationchange', 'handleOrientationChange', this, {buffer: 50 });

这是上下文。

Ext.define('rpc.view.home.indexView', {
    extend: 'Ext.Panel',
    alias: 'widget.home-indexView',
    config: {
        scrollable: true,
        items: [{
            xtype: 'toolbar',
            title: 'RockPointe Mobile',
            docked: 'top'
        }, {
            xtype: 'panel',
            items: [{
               xtype: 'panel',
                style:'border:1px solid #c4c4c4 !important; border-left:none;border-right:none;',
               items: [{
                   html: '<div style="width:100%; height:150px;"><ol id="AN-sObj-parentOl"><li id="AN-sObj-scene-0"><div class="AN-sObj-stage" id="ext-gen5089"><div class="AN-Object" id="AN-sObj-60"><div id="AN-sObj-val-60"><img src="img/banner-3.jpg" /></div></div><div id="AN-sObj-61"><span>Relentlessly Focused On The Lost</span></div><div id="AN-sObj-62"><span>Passionately Devoted To God</span></div><div id="AN-sObj-63"><span>Deeply Committed To One Another</span></div></div></li></div>'
               }]
            }, {
               xtype: 'container',
               layout: {
                   type: 'hbox',
                   pack: 'center'
               },
               defaults: {
                   xtype: 'button',
                   ui: 'plain',
                   style: 'margin-top: 5px;',
                   pressedCls: 'x-button-rpc-pressed'
               },
               items: [{
                   text: 'Videos',
                   cls: 'x-button-rpc',
                   flex: 1
               }, {
                   xtype: 'container',
                   cls: 'x-button-rpc-spacer'
               }, {
                   text: 'Calendar',
                   cls: 'x-button-rpc',
                   flex: 1
               }, {xtype: 'container',
                   cls: 'x-button-rpc-spacer'
               }, {
                   text: 'Sites',
                   cls: 'x-button-rpc',
                   flex: 1
               }]
            }, {
               xtype: 'panel',
               cls: 'x-panel-rpc',
               items: [{
                   html: 'body content'
               }]
            }, {
               xtype: 'panel',
               items: [{
                   html: '<div style="text-align: right; width:100%; padding-right: 5px;"><a href="fb://page/234638962305"><img src="/img/facebook.png" /></a><a href="twitter:@rockpointeca"><img src="/img/twitter.png" /></a></div>'
               }]
            }]
        }]
    },
    initialize: function () {
        console.log('rpc.view.home.indexView ~ initialize');
        this.on('painted', 'handlePainted', this, { buffer : 50 });
        // HOW TO HANDLE ORIENTATION CHANGE
        this.on('orientationchange', 'handleOrientationChange', this, {buffer: 50 });
        this.callParent(arguments);
    },
    handlePainted: function() {
        console.log('rpc.view.home.indexView ~ handlePainted');
        loadHomeBanner();
    },
    handleOrientationChange: function(){
        console.log('rpc.view.home.indexView ~ handleOrientationChange');
        loadHomeBanner();
    }
});

【问题讨论】:

    标签: sencha-touch-2 sencha-touch-2


    【解决方案1】:

    方向变化由视口处理。这是工作的sn-p

    Ext.Viewport.on('orientationchange', 'handleOrientationChange', this, {buffer: 50 });
    

    本质上,在面板初始化时,您将向面板添加一个侦听器(其中onaddListner 的别名)。从那里,您创建一个名为“handleOrientationChange”(或您想调用的任何名称)的新方法,该方法将在视口方向更改时执行

    Ext.define('app.view.home.indexView', {
        extend: 'Ext.Panel',
        alias: 'widget.home-indexView',
        config: { 
            //...
        },
        // Fires when the Panel is initialized
        initialize: function () {
            console.log('app.view.home.indexView ~ initialize');
            // Add a Listener. Listen for [Viewport ~ Orientation] Change.
            Ext.Viewport.on('orientationchange', 'handleOrientationChange', this, {buffer: 50 });
            this.callParent(arguments);
        },
        handleOrientationChange: function(){
            console.log('rpc.view.home.indexView ~ handleOrientationChange');
            // Execute the code that needs to fire on Orientation Change.
        }
    };
    

    【讨论】:

    • 你能简单解释一下吗,我如何在android中使用这段代码来处理方向变化,或者如果你有任何链接,请提前分享...
    • PS:由于sench-touch 是基于 HTML5、CSS3 和 Javascript 构建的,这将适用于 iOS、Android,我认为是 BB6。
    【解决方案2】:

    添加到Chase的解决方案中,orientationchange事件可以提供如下四个参数:

    handleOrientationChange: function(viewport, orientation, width, height){
        console.log('rpc.view.home.indexView ~ handleOrientationChange');
        // Execute the code that needs to fire on Orientation Change.
        alert('o:' + orientation + ' w:' + width + ' h:' + height);
    }
    

    【讨论】:

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