问题:android 11 webview 调用webrtc无法使用, 看logcat日志会报如下错误
[ERROR:address_tracker_linux.***(245)] Could not send ***LINK request: Permission denied (13)
查了下相关的网络权限都有配置了还是不行,还是报这个权限问题
原因:跟 android11 限制读网卡信息有关系, 算webview的一个兼容bug
https://developer.android.***/about/versions/11/privacy/mac-address
解决:
方案一: 可以修改app 的targetSdkVersion小于30
方案二:发现第一次发起连接失败后再连接就正常了,所以在正式连接之前发起一次连接
async function connect() {
if (getAndroidVersion() === 11) {
await this.fixAndroid({
iceServers,
iceCandidatePoolSize: 1, // 这里要设置1, 不设1也连不上,不知道为什么
})
}
// 发起正式连接
// let peer = new RTCPeerConnection(turn);
// ......
}
function getAndroidVersion() {
// 获取设备信息
const deviceInfo = navigator.userAgent;
// 解析设备信息
const androidVersion = deviceInfo.match(/Android ([\d.]+)/);
if (androidVersion && androidVersion!.length === 2) {
return Number(androidVersion![1])
}
// 返回系统版本号
return null;
};
async fixAndroid(turn: any) {
console.log("fixing android webrtc bug");
return new Promise(async (resolve, reject) => {
try {
let peer = new RTCPeerConnection(turn);
let offer = await peer.createOffer({
offerToReceiveAudio: true,
offerToReceiveVideo: true
})
let rtcDesc = new RTCSessionDescription(offer);
await peer.setLocalDescription(rtcDesc);
setTimeout(()=> {
peer.close()
console.log("fixAndroid close")
resolve()
}, 1000)
} catch (e) {
resolve()
console.error("fixAndroid", e)
}
})
}
参考:
- https://stackoverflow.***/questions/70803796/ice-candidates-not-generating-on-android-11-chrome-in-some-devices
- https://issues.chromium.org/issues/40194180