想做個錄音機,第一步就卡在麥克風動畫這里了.
先上gif.再吐槽.
① 上面gif中聲波的動畫是個半成品.沒有循環播放.在微信小程序的開發文檔上找了很久,也沒找到循環模式的參數設置.用setInterval()并不執行動畫.我在微信小程序文檔 動畫最下面找到這么一行字.這個鍋是不是可以甩出去了?
ps:如果有同學能實現動畫循環,一定告訴我.
② 麥克風里面是個幀動畫.沒有前端的基礎,只能用非主流的辦法湊合了.
用wx:if{{}}判斷js中定義的值是不是等于圖片對應的數字來控制圖片的顯示和隱藏.css中應該有更好的方法.我css基礎不牢,就不說了.
上代碼:
1.index.wxml
<!--index.wxml--> <view class="voice-style" bindtap="startSpeak"> <image class="bg-style" src="../../images/voice_icon_speaking_bg_normal.png" ></image> <image class="bg-style" animation="{{spreakingAnimation}}" src="../../images/voice_video_loading_0.png"></image> <image class="bg-style" animation="{{spreakingAnimation_1}}" src="../../images/voice_video_loading_0.png"></image> <image class="bg-style" animation="{{spreakingAnimation_2}}" src="../../images/voice_video_loading_0.png"></image> <image class="sound-style" src="../../images/voice_icon_speech_sound_1.png" ></image> <image wx:if="{{j==2}}" class="sound-style" src="../../images/voice_icon_speech_sound_2.png" ></image> <image wx:if="{{j==3}}" class="sound-style" src="../../images/voice_icon_speech_sound_3.png" ></image> <image wx:if="{{j==4}}" class="sound-style" src="../../images/voice_icon_speech_sound_4.png" ></image> <image wx:if="{{j==5}}"class="sound-style" src="../../images/voice_icon_speech_sound_5.png" ></image> </view> 2.index.js
//index.js //獲取應用實例 var app = getApp() Page({ data: { spreakingAnimation: {},//放大動畫 j: 1,//幀動畫初始圖片 isSpeaking: false,//是否在錄音狀態 }, onLoad: function () { }, //點擊開始說話 startSpeak: function () { var _this = this; if (!this.data.isSpeaking) { speaking.call(this); this.setData({ isSpeaking: true }) } else { //去除幀動畫循環 clearInterval(this.timer) this.setData({ isSpeaking: false, j: 1 }) } }, }) function speaking() { //話筒幀動畫 var i = 1; this.timer = setInterval(function () { i++; i = i % 5; _this.setData({ j: i }) return }, 200); //波紋放大,淡出動畫 var _this = this; var animation = wx.createAnimation({ duration: 1000 }) animation.opacity(0).scale(3, 3).step();//修改透明度,放大 this.setData({ spreakingAnimation: animation.export() }) setTimeout(function(){ //波紋放大,淡出動畫 var animation = wx.createAnimation({ duration: 1000 }) animation.opacity(0).scale(3, 3).step();//修改透明度,放大 _this.setData({ spreakingAnimation_1: animation.export() }) },250) setTimeout(function(){ //波紋放大,淡出動畫 var animation = wx.createAnimation({ duration: 1000 }) animation.opacity(0).scale(3, 3).step();//修改透明度,放大 _this.setData({ spreakingAnimation_2: animation.export() }) },500) } 3.index.wxss
/**index.wxss**/ .voice-style { margin-top: 400px; display: flex; position: relative; flex-direction: column; align-items: center; } .bg-style { position: absolute; width: 100px; height: 100px; } .sound-style{ position: absolute; width: 37.6px; height: 60px; margin-top: 20px; } 以上就是本文的全部內容，希望本文的內容對大家的學習或者工作能帶來一定的幫助，同時也希望多多支持武林網！
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