本文为用 MediaRecorder 录制小视频的控件，可以设置视频录制的时间、空间大小、初始时是否打开摄像头等。 此控件为组合控件，继承自 LinearLayout ,为防止出错，需实现 android.media.MediaRecorder.OnErrorListener 接口。-This article MediaRecorder to record small video with the controls, you can set the time for video recording, space, whether to open cameras initially. This control is a combination of controls, inherited　LinearLayout, in order to prevent the error, you need to realize android.media.MediaRecorder.OnErrorListener interface.