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明月漫千山 發表於 2019-8-5 18:09:00

uni-app 生命周期

<p> </p>
<p>生命周期分为：页面生命周期和应用生命周期</p>
<p> </p>
<p>生命周期可参考：uni-app官方API</p>
<p> </p>
<p>注意平台支持，仅某个平台支持会显示，5+App是超HTML5+的App方案.</p>
<p> </p>
<p><strong>例如分享：只有小程序支持.</strong>这时我们就要采用跨终端解决方案：https://uniapp.dcloud.io/platform</p>
<p> </p>
<h1>1.应用生命周期</h1>
<p><img src="https://img2018.cnblogs.com/blog/1567645/201908/1567645-20190805180719378-768186862.png" alt=""></p>
<p> </p>
<h1>2.<strong>页面生命周期</strong></h1>
<p><strong><img src="https://img2018.cnblogs.com/blog/1567645/201908/1567645-20190805180746432-869446989.png" alt=""></strong></p>
<div class="cnblogs_code">
<pre><span style="color: rgba(0, 0, 255, 1)"><</span><span style="color: rgba(128, 0, 0, 1)">template</span><span style="color: rgba(0, 0, 255, 1)">></span>
<span style="color: rgba(0, 0, 255, 1)"><</span><span style="color: rgba(128, 0, 0, 1)">view </span><span style="color: rgba(255, 0, 0, 1)">class</span><span style="color: rgba(0, 0, 255, 1)">="content"</span><span style="color: rgba(0, 0, 255, 1)">></span>
   <span style="color: rgba(0, 0, 255, 1)"><</span><span style="color: rgba(128, 0, 0, 1)">image </span><span style="color: rgba(255, 0, 0, 1)">class</span><span style="color: rgba(0, 0, 255, 1)">="logo"</span><span style="color: rgba(255, 0, 0, 1)"> src</span><span style="color: rgba(0, 0, 255, 1)">="../../static/image/myHover.png"</span><span style="color: rgba(255, 0, 0, 1)"> @click</span><span style="color: rgba(0, 0, 255, 1)">="tap"</span><span style="color: rgba(0, 0, 255, 1)">></</span><span style="color: rgba(128, 0, 0, 1)">image</span><span style="color: rgba(0, 0, 255, 1)">></span>
   <span style="color: rgba(0, 0, 255, 1)"><</span><span style="color: rgba(128, 0, 0, 1)">view</span><span style="color: rgba(0, 0, 255, 1)">></span>
         <span style="color: rgba(0, 0, 255, 1)"><</span><span style="color: rgba(128, 0, 0, 1)">text </span><span style="color: rgba(255, 0, 0, 1)">class</span><span style="color: rgba(0, 0, 255, 1)">="title"</span><span style="color: rgba(0, 0, 255, 1)">></span>{{title}}<span style="color: rgba(0, 0, 255, 1)"></</span><span style="color: rgba(128, 0, 0, 1)">text</span><span style="color: rgba(0, 0, 255, 1)">></span>
   <span style="color: rgba(0, 0, 255, 1)"></</span><span style="color: rgba(128, 0, 0, 1)">view</span><span style="color: rgba(0, 0, 255, 1)">></span>
<span style="color: rgba(0, 0, 255, 1)"></</span><span style="color: rgba(128, 0, 0, 1)">view</span><span style="color: rgba(0, 0, 255, 1)">></span>
<span style="color: rgba(0, 0, 255, 1)"></</span><span style="color: rgba(128, 0, 0, 1)">template</span><span style="color: rgba(0, 0, 255, 1)">></span>

<span style="color: rgba(0, 0, 255, 1)"><</span><span style="color: rgba(128, 0, 0, 1)">script</span><span style="color: rgba(0, 0, 255, 1)">></span>

<span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 128, 0, 1)">//</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 128, 0, 1)"> 跨终端解决方案:https://uniapp.dcloud.io/platform</span>
<span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 128, 0, 1)">//</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 128, 0, 1)"> 生命周期:https://uniapp.dcloud.io/frame?id=%E9%A1%B5%E9%9D%A2%E7%94%9F%E5%91%BD%E5%91%A8%E6%9C%9F</span>
<span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">
export </span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 255, 1)">default</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)"> {
   data() {
         </span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 255, 1)">return</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)"> {
            title: </span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">'</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">Hello</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">'</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">
         }
   },
   onLoad() {
         console.log(</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">'</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">页面加载</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">'</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">)
   },
   onShow() {
         console.log(</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">'</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">页面显示</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">'</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">)
   },
   onReady(){
         console.log(</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">'</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">页面初次显示</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">'</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">)
   },
   onHide() {
         console.log(</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">'</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">页面隐藏</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">'</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">)
   },
   onUnload() {
         console.log(</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">'</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">页面卸载</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">'</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">)
   },
   onBackPress(){
         console.log(</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">'</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">页面返回...</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">'</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">)
   },
   onShareAppMessage() {
         console.log(</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">'</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">分享!</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">'</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">)
   },
   onReachBottom() {
         console.log(</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">'滚动到底部</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">加载...</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">'</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">)
   },
   onPageScroll(){
         console.log(</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">'</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">页面滚动...</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">'</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">)
   },
   onPullDownRefresh() {
         console.log(</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">'下拉</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">刷新...</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">'</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">)
         uni.stopPullDownRefresh();
   },

   </span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 128, 0, 1)">//</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 128, 0, 1)"> #ifdef APP-PLUS</span>
<span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">    onNavigationBarButtonTap(){

   },
   </span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 128, 0, 1)">//</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 128, 0, 1)"> #endif</span>
<span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">
   methods: {
         tap(){
            console.log(</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">'</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">tap点击!</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">'</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">);
         }
   }
}
</span><span style="color: rgba(0, 0, 255, 1)"></</span><span style="color: rgba(128, 0, 0, 1)">script</span><span style="color: rgba(0, 0, 255, 1)">></span>

<span style="color: rgba(0, 0, 255, 1)"><</span><span style="color: rgba(128, 0, 0, 1)">style </span><span style="color: rgba(255, 0, 0, 1)">lang</span><span style="color: rgba(0, 0, 255, 1)">="scss"</span><span style="color: rgba(0, 0, 255, 1)">></span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(128, 0, 0, 1)">
.content </span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">{</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(255, 0, 0, 1)">
   text-align</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">:</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 255, 1)"> center</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">;</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(255, 0, 0, 1)">
   height</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">:</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 255, 1)"> 400upx</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">;</span>
<span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">}</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(128, 0, 0, 1)">

.logo </span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">{</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(255, 0, 0, 1)">
   height</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">:</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 255, 1)"> 200upx</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">;</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(255, 0, 0, 1)">
   width</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">:</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 255, 1)"> 200upx</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">;</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(255, 0, 0, 1)">
   margin-top</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">:</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 255, 1)"> 200upx</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">;</span>
<span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">}</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(128, 0, 0, 1)">

.title </span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">{</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(255, 0, 0, 1)">
   font-size</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">:</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 255, 1)"> 36upx</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">;</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(255, 0, 0, 1)">
   color</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">:</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 255, 1)"> #8f8f94</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">;</span>
<span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">}</span>
<span style="color: rgba(0, 0, 255, 1)"></</span><span style="color: rgba(128, 0, 0, 1)">style</span><span style="color: rgba(0, 0, 255, 1)">></span></pre>
</div>
<p> </p>
<p>页面栈以何种方式进入或退出以及tabbar的路由切换触发页面生命周期的行为.</p>
<p><img src="https://img2018.cnblogs.com/blog/1567645/201908/1567645-20190805180852240-197116720.png" alt=""></p>
<p> </p><br><br>
来源：https://www.cnblogs.com/fei-H/p/11304645.html

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