小程序-厕所雷达
moubao
8年前
<p>快来用厕所雷达吧</p> <p>作为一个优秀的楼主，胖子我不仅写了代码，连广告次都想好了，哇咔咔咔~~~~ “厕所找的快，排的才痛快”。</p> <p>练习区里看到一个“厕所雷达”就来做了下，主要还是为了练习小程序“控件的基本用法”和“页面间的交互”，CSS依旧让我感到头疼，不过比上次的demo“石头剪刀布”好了很多了HOHO。（PS：页面有好几个，就先贴上首页的代码吧，想看的小伙伴就下载一下然后咱们互相交流哦，注释都写好了的说。哦对了，新的分享功能也加进去了，当然广告词已经写在分享里了。）</p> <p>下面直接上图：</p> <p style="text-align:center"><img src="https://simg.open-open.com/show/6f15a784c276a38104f2ca85c3e73e51.png"></p> <p style="text-align:center"><img src="https://simg.open-open.com/show/709b54728d813428c4d31f88e8523398.png"></p> <p style="text-align:center"><img src="https://simg.open-open.com/show/ca11041c86e7e57672506b458773289f.png"></p> <p style="text-align:center"><img src="https://simg.open-open.com/show/0035d80749a56eceef76d668679adb59.png"></p> <p>JS:</p> <pre> <code class="language-javascript">//index.js var app = getApp() var winHeight = 0 var winWidth = 0 Page({ data: { //背景图片，现在没有 img:'/pages/image/123.png', //确定左边距距离，上边距距离，厕所title，头像 dataArr:[{'left':200,'top':100,'title':'我家厕所最好','img':'/pages/image/1.png'}, {'left':20,'top':400,'title':'amis的小屋','img':'/pages/image/2.png'}, {'left':540,'top':440,'title':'老丁的宝盆','img':'/pages/image/3.png'}, {'left':240,'top':800,'title':'雪姐专用坑','img':'/pages/image/4.png'}] }, //进页面后获取数据 onLoad: function () { console.log('onLoad') var that = this //调用应用实例的方法获取全局数据 app.getUserInfo(function(userInfo){ console.log(userInfo) //更新数据 that.setData({ userInfo:userInfo }) }) //获取数据 wx.getSystemInfo({ success: function(res) { console.log(res) winHeight = res.windowHeight; winWidth = res.windowWidth; } }) // 使用 wx.createContext 获取绘图上下文 context var context = wx.createContext() context.arc(winWidth/2, winHeight/2, 50, 0, 2 * Math.PI, true) context.arc(winWidth/2, winHeight/2, 100, 0, 2 * Math.PI, true) context.arc(winWidth/2, winHeight/2, 150, 0, 2 * Math.PI, true) context.arc(winWidth/2, winHeight/2, 200, 0, 2 * Math.PI, true) context.arc(winWidth/2, winHeight/2, 250, 0, 2 * Math.PI, true) context.arc(winWidth/2, winHeight/2, 300, 0, 2 * Math.PI, true) context.setStrokeStyle('red') context.setLineWidth(1) context.stroke() // 调用 wx.drawCanvas，通过 canvasId 指定在哪张画布上绘制，通过 actions 指定绘制行为 wx.drawCanvas({ canvasId: 'radar', actions: context.getActions() // 获取绘图动作数组 }) }, onShareAppMessage: function() { // 用户点击右上角分享 return { title: '厕所雷达', // 分享标题 desc: '厕所找的快，排的才痛快', // 分享描述 path: 'path' // 分享路径 } } })</code></pre> <p>wxml:</p> <pre> <code class="language-javascript"><!--index.wxml--> <canvas canvas-id="radar"> <image class="userinfo" src="{{userInfo.avatarUrl}}"></image> <block wx:for="{{dataArr}}"> <navigator url="../logs/logs?title={{item.title}}&img={{item.img}}"> <view class="toiletView" style="left:{{item.left}}rpx;top:{{item.top}}rpx" bindtap="toiletDetails" id="{{index}}"> <image class="toiletView-image" src="{{item.img}}"></image> <text class="toiletView-text">{{item.title}}</text> </view> </navigator> </block> </canvas></code></pre> <p>wxss:</p> <pre> <code class="language-javascript">/**index.wxss**/ page{ background: black; height: 100%; } canvas{ width: 100%; height: 100%; } .userinfo { position:absolute; top: 561rpx; left:311rpx; width: 128rpx; height: 128rpx; border-radius: 50%; } .toiletView{ position:absolute; width: 180rpx; height: 180rpx; } .toiletView-image{ position:absolute; left: 13px; top: 0px; width: 128rpx; height: 128rpx; border-radius: 50%; } .toiletView-text{ position:absolute; bottom: 10rpx; font-size: 30rpx; color: orangered; width: 180rpx; text-align: center; }</code></pre> <p>雷达的背景图是没有的，只能用画板自己手动画了一个。</p> <p> </p> <p> </p> <p>来自：https://segmentfault.com/a/1190000007995858</p> <p> </p>