EffectCameraStream.onRequest
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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。​
监听相机资源请求成功事件,资源请求成功后触发,可通过 EffectCameraStream.offRequest 取消监听。​

语法​

EffectCameraStream.onRequest(callback)

参数说明​

function callback​

回调参数​

无​

代码示例​

预期表现:点击按钮后弹窗提示“相机资源申请成功”。​
<button type="primary" bindtap="requestEffectCamera">打开相机</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, }); }, onRequest() { tt.showToast({ title: "相机资源申请成功", }); }, });

Bug & Tip​

暂无。​