处理音频清空返回为空及无法继续录音的问题

wade-mobile-func/src/com/wade/mobile/func/MobileFile.java

@@ -34,7 +34,7 @@ public class MobileFile extends Plugin{
	
	public void cleanResource(String relativePath, boolean isSdcard) {
		String absolutePath = util.getDirection(relativePath, isSdcard);
		FileUtil.deleteDir(absolutePath);
		cleanDir(new File(absolutePath));
		
		String[] fileList = new File(absolutePath).list();
		if (fileList.length == 0) {
@@ -44,6 +44,22 @@ public class MobileFile extends Plugin{
		}
	}
	
	/**
	 * 清空文件夹
	 */
	private boolean cleanDir(File dir){
		if(dir.isDirectory()){
			String[] children = dir.list();
			for(int i = 0;i < children.length; i++){
				boolean success = FileUtil.deleteDir(new File(dir, children[i]));
				if(!success){
					return false;
				}
			}
		}
		return true;
	}
	
	public void getAllFile(JSONArray param) throws Exception{
		String fileName = param.getString(0); //相对路径参数
		String type = param.getString(1);