<camera class="camera-box" device-position="front" flash="off" resolution="medium" frame-size="large" bindinitdone="cameraInitDone" binderror="error" ></camera>

const ctx = wx.createCameraContext()

ctx.startRecord({

timeout: 18,

success: (res) => {

},timeoutCallback: (result) => {

//超过录制时长上限时会结束录像并触发此回调，录像异常退出时也会触发此回调

ctx.stopRecord({

success: (res) => {}

})

});