<camera id="myCamera" class="camera" style="display:{{cameraDisplay}};height:{{cameraHeight}}px" device-position="back" flash="auto" >

<cover-view class="container" style="height:{{cameraHeight}}px">

<cover-view class="pause" bindtap="pause">

<cover-image class="img"    src="../../images/icon.png" />

</cover-view>

</cover-view>

</camera>

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const cameraContext = wx.createCameraContext('myCamera');

Page({

data:{

    cameraDisplay: 'block',

    cameraHeight:1000,

},

pause:function(){

let that = this;

that.setData({

cameraDisplay: 'none',

cameraHeight:0,

});

cameraContext.takePhoto({

success: function (res) {

    console.log(res);

},

})

})