只能进入complete 而且没有tempImagePath

<camera  device-position="front" style="width: 180px, height: 180px"></camera>

if (!this.context) {

					this.context = uni.createCameraContext();
				}
				// 指定图片的DataURL(图片的base64编码数据)
				try{
					this.context.takePhoto({
						success: (res) => {
							this.uploadFaceImg(res.tempImagePath);
						},
						fail: (res) => {
							this.clearTimer();
							this.$emit('result', {
								code: -2,
								msg: '拍照接口出现错误'
							});
						},
						complete: (res) => {
							console.log(res, 'camera complete')
						}
					});
				}catch(e){
					//TODO handle the exception
					console.log(e, 'takePhoto')
				}