小程式學習之旅----圖片image媒體元件camera、audio、video、live-player、live-pusher
阿新 • • 發佈:2018-11-02
<!--pages/image/image.wxml--> <text>這是一個image元件</text> <!-- <image src='../../images/0.jpg'></image> <image src='/images/0.jpg'></image> --> <view class="section section_gap" wx:for="{{list}}" wx:for-item="item"> <view class="section__title">{{item.text}}</view> <view class="section__ctn"> <image bindtap="preview" style="width: 200px; height: 200px; background-color: #eeeeee;" mode="{{item.mode}}" data-src="{{src}}" src="{{src}}"></image> </view> </view>
// pages/image/image.js Page({ /** * 頁面的初始資料 */ data: { list: [{ mode: 'scaleToFill', text: 'scaleToFill:不保持縱橫比縮放圖片,使圖片完全適應' }, { mode: 'aspectFit', text: 'aspectFit:保持縱橫比縮放圖片,使圖片的長邊能完全顯示出來' }, { mode: 'aspectFill', text: 'aspectFill:保持縱橫比縮放圖片,只保證圖片的短邊能完全顯示出來' }, { mode: 'top', text: 'top:不縮放圖片,只顯示圖片的頂部區域' }, { mode: 'bottom', text: 'bottom:不縮放圖片,只顯示圖片的底部區域' }, { mode: 'center', text: 'center:不縮放圖片,只顯示圖片的中間區域' }, { mode: 'left', text: 'left:不縮放圖片,只顯示圖片的左邊區域' }, { mode: 'right', text: 'right:不縮放圖片,只顯示圖片的右邊邊區域' }, { mode: 'top left', text: 'top left:不縮放圖片,只顯示圖片的左上邊區域' }, { mode: 'top right', text: 'top right:不縮放圖片,只顯示圖片的右上邊區域' }, { mode: 'bottom left', text: 'bottom left:不縮放圖片,只顯示圖片的左下邊區域' }, { mode: 'bottom right', text: 'bottom right:不縮放圖片,只顯示圖片的右下邊區域' }], src: '/images/0.jpg' } , preview(e){ console.log(e.target.dataset.src); var current = e.target.dataset.src; wx.previewImage({ current: current, // 當前顯示圖片的http連結 urls: ['https://pic4.zhimg.com/80/v2-092ca55bea745e0af303e199fe9365a9_hd.jpg','https://pic2.zhimg.com/80/v2-41b41d2cec6dd5933760b42ee62e7d88_hd.jpg'] // 需要預覽的圖片http連結列表 }) } })
<view class="page-body"> <view class="page-body-wrapper"> <camera device-position="back" flash="off" binderror="error" style="width: 100%; height: 300px;"></camera> <view class="btn-area"> <button type="primary" bindtap="takePhoto">拍照</button> </view> <view class="btn-area"> <button type="primary" bindtap="startRecord">開始錄影</button> </view> <view class="btn-area"> <button type="primary" bindtap="stopRecord">結束錄影</button> </view> <view class="preview-tips">預覽</view> <image wx:if="{{src}}" mode="widthFix" src="{{src}}"></image> <video wx:if="{{videoSrc}}" class="video" src="{{videoSrc}}"></video> </view> </view>
Page({
onLoad() {
this.ctx = wx.createCameraContext()
},
takePhoto() {
this.ctx.takePhoto({
quality: 'high',
success: (res) => {
this.setData({
src: res.tempImagePath
})
}
})
},
startRecord() {
this.ctx.startRecord({
success: (res) => {
console.log('startRecord')
}
})
},
stopRecord() {
this.ctx.stopRecord({
success: (res) => {
this.setData({
src: res.tempThumbPath,
videoSrc: res.tempVideoPath
})
}
})
},
error(e) {
console.log(e.detail)
}
})
<view class="page">
<view class="page__bd">
<view class="section section_gap">
<audio src="{{current.src}}" poster="{{current.poster}}" name="{{current.name}}" author="{{current.author}}" action="{{audioAction}}" bindplay="audioPlayed" bindtimeupdate="audioTimeUpdated" controls></audio>
</view>
</view>
<view class="section section_gap">
<view class="body-view">
<button bindtap="playAudio">播放</button>
</view>
</view>
<view class="section section_gap">
<view class="body-view">
<button bindtap="pauseAudio">暫停</button>
</view>
</view>
<view class="section section_gap">
<text class="section__title">進度</text>
<view class="body-view">
<slider bindchange="timeSliderChanged" left-icon="cancel" right-icon="success_no_circle"/>
</view>
</view>
<view class="section section_gap">
<text class="section__title">播放速率</text>
<view class="body-view">
<slider min="1" max="10" bindchange="playbackRateSliderChanged" left-icon="cancel" right-icon="success_no_circle"/>
</view>
</view>
</view>
Page({
data: {
current: {
poster: 'http://y.gtimg.cn/music/photo_new/T002R300x300M000003rsKF44GyaSk.jpg?max_age=2592000',
name: '此時此刻',
author: '許巍',
src: 'http://ws.stream.qqmusic.qq.com/M500001VfvsJ21xFqb.mp3?guid=ffffffff82def4af4b12b3cd9337d5e7&uin=346897220&vkey=6292F51E1E384E06DCBDC9AB7C49FD713D632D313AC4858BACB8DDD29067D3C601481D36E62053BF8DFEAF74C0A5CCFADD6471160CAF3E6A&fromtag=46',
},
audioAction: {
method: 'pause'
}
},
audioPlayed: function (e) {
console.log('audio is played')
},
//獲取音訊播放的總時間
audioTimeUpdated: function (e) {
this.duration = e.detail.duration; /*獲取音訊的播放時間 s*/
},
timeSliderChanged: function (e) {
if (!this.duration)
return;
var time = this.duration * e.detail.value / 100; //總時間誠意百分比
this.setData({ //改變音訊的播放時間
audioAction: {
method: 'setCurrentTime',
data: time
}
});
},
playbackRateSliderChanged: function (e) { /*改變音訊播放的速率*/
this.setData({
audioAction: {
method: 'setPlaybackRate',
data: e.detail.value
}
})
},
playAudio: function () {
this.setData({
audioAction: {
method: 'play'
}
});
},
pauseAudio: function () {
this.setData({
audioAction: {
method: 'pause'
}
});
}
})