EffectCameraStream.offError
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基础库 2.19.0 开始支持本方法,低版本需做兼容处理。​
取消对 EffectCameraStream 生命周期错误事件的监听,包括:request, play, stop。取消后 EffectCameraStream.onError 将不触发。​

语法​

EffectCameraStream.offError(callback)

参数说明​

function callback​

回调参数​

无​

代码示例​

预期表现:连续点击【打开相机】,弹出错误提示。​
点击【取消错误监听】后,再次重复点击【打开相机】,不出现错误提示。​
<button type="primary" bindtap="requestEffectCamera">打开相机</button> <button type="primary" bindtap="offError">取消错误监听</button>
Page({ onShow: function (options) { this.effectCameraStream = tt.createEffectCameraStream(this); this.effectCameraStream.onError(this.onError); this.effectCameraStream.onRequest(this.onRequest); }, requestEffectCamera() { this.effectCameraStream.request({ orientation: "front", }); }, onError(error) { console.log("onError", error); const { type, errMsg } = error; tt.showModal({ title: `onError ${type}`, content: errMsg, }); }, offError() { tt.showToast({ title: "取消错误监听", }); this.effectCameraStream.offError(this.onError); }, onRequest() { tt.showModal({ title: "相机资源申请成功", }); }, });

Bug & Tip​

暂无。​