大华可视对讲功能优化，自研可视对讲Android接入

wxr

2022-04-01 764185112d44c387e16f0483d8da898f8d998944

 HDL-ON_Android/LeChengVideoActivity.cs

@@ -19,6 +19,7 @@
using Com.Lechange.Opensdk.Device;
using Com.Lechange.Opensdk.Listener;
using Com.Lechange.Opensdk.Media;
using HDL_ON;
using HDL_ON.DAL.Server;
using HDL_ON_Android.LeChengView.Form;
using Java.IO;
@@ -166,6 +167,7 @@
        /// </summary>
        public void StartTalk()
        {
            UserInfo.Current.inVideo = true;
            CloseAudio();// 关闭Audio
            LCOpenSDK_Talk.Listener = new AudioTalkerListener();//设置对讲监听
            //2021-10-29 对讲请求类型，call呼叫，如果不传，默认为talk
@@ -184,6 +186,8 @@
        /// </summary>
        public void StopTalk()
        {
            UserInfo.Current.inCall = DateTime.MinValue;
            UserInfo.Current.inVideo = false;
            LCOpenSDK_Talk.StopTalk();
            LCOpenSDK_Talk.Listener = null;
        }
@@ -338,6 +342,7 @@
        {
            if (v.Equals(ivBack))
            {
                StopTalk();
                this.Finish();
            }
        }