Bug&Fix:录音时有弹窗，录音会无法停止，只能杀掉APP

[jiang443]

Base Info for this issue

Bug: 输入语音消息，录音时有弹窗（Alert），录音会无法停止，只能杀掉APP 非常影响用户体验

1. ChatKit Version：2.1.1
2. App-ID: XX
3. Language：Swift + Objective-C
4. iOS System Version：iOS12
5. Prototype（是否是真机）：都有
6. Issue Type：Crash、Bug、Enhancement（希望能支持一个新需求）、Q-A

1. How to repeat the problem.

输入语音消息，录音时有弹窗（Alert），录音会无法停止，只能杀掉APP

2. Please help me in this way.

录音时有弹窗，或者其他情况引起录音按钮失去焦点，此时应该停止录音。

3. Here is a Demo.

只要加一个Alert，延时2秒弹出，就可以复现

直接修改SDK的源码：

LCCKChatBar.m 中将下面的代码：

    [_voiceRecordButton addTarget:self action:@selector(startRecordVoice) forControlEvents:UIControlEventTouchDown];
    [_voiceRecordButton addTarget:self action:@selector(cancelRecordVoice) forControlEvents:UIControlEventTouchUpOutside];

替换为

    [_voiceRecordButton addTarget:self action:@selector(startRecordVoice) forControlEvents:UIControlEventTouchDown];
    [_voiceRecordButton addTarget:self action:@selector(cancelRecordVoice) forControlEvents:UIControlEventTouchUpOutside];
    [_voiceRecordButton addTarget:self action:@selector(cancelRecordVoice) forControlEvents:UIControlEventTouchCancel];   //新增UIControlEventTouchCancel事件的监控，如果被系统事件中断，即取消录音

[ChenYilong]

收到，多谢