为什么用目标C编写的本机函数不会返回任何内容?
我正在尝试从本机函数中获取输出以在前端使用,这是函数,
RCT_EXPORT_METHOD(getActiveAudioDevice:
resolver:(RCTPromiseResolveBlock)resolve
rejecter:(RCTPromiseRejectBlock)reject)
{
MediaDevice * _Nullable devices = [meetingSession.audioVideo getActiveAudioDevice];
NSLog(@"Hello Devices: %@", devices);
if (!devices) {
reject(@"event_failure", @"failed to list audio devices", nil);
} else {
resolve(devices);
}
}
我在js中触发它,
const selectedAudioDevice = useCallback(async() => {
const activeDevice= await NativeFunction.selectedDevice("")
setActiveDevice(activeDevice) }
当我从前端触发它时,我可以在日志中看到本机函数正在返回设备,但在JS中却全部我得到的是不确定的,知道我在这里做错了什么吗?
I am trying to get output from native function to use in frontend, here is the function,
RCT_EXPORT_METHOD(getActiveAudioDevice:
resolver:(RCTPromiseResolveBlock)resolve
rejecter:(RCTPromiseRejectBlock)reject)
{
MediaDevice * _Nullable devices = [meetingSession.audioVideo getActiveAudioDevice];
NSLog(@"Hello Devices: %@", devices);
if (!devices) {
reject(@"event_failure", @"failed to list audio devices", nil);
} else {
resolve(devices);
}
}
I am triggering it in JS like this ,
const selectedAudioDevice = useCallback(async() => {
const activeDevice= await NativeFunction.selectedDevice("")
setActiveDevice(activeDevice) }
When I trigger this from frontend I can see in logs that Native function is returning a device but in JS all I get is undefined, any idea what I am doing wrong here ?
如果你对这篇内容有疑问,欢迎到本站社区发帖提问 参与讨论,获取更多帮助,或者扫码二维码加入 Web 技术交流群。

绑定邮箱获取回复消息
由于您还没有绑定你的真实邮箱,如果其他用户或者作者回复了您的评论,将不能在第一时间通知您!
发布评论