adb shell 删除删除指定文件夹和文件

DukerDev:

觉得读取速度慢，效率低的可以使用以下代码:

(使用StringBuilder append的方式效率比字符串拼接高出几个数量级)

(另原作者代码中会将原文本的换行去掉，以下代码已一起修正)

[code=java]

import java.io.BufferedReader;

import java.io.File;

import java.io.FileInputStream;

import java.io.InputStreamReader;

/**

* Created by cruze on 2015/7/29.

* Updated by dukerDev on 2022/12/21

*/

public class TxtTool {

public static StringBuilder readTxt(String path){

StringBuilder sb = new StringBuilder();

try {

File urlFile = new File(path);

InputStreamReader isr = new InputStreamReader(new FileInputStream(urlFile), "UTF-8");

BufferedReader br = new BufferedReader(isr);

String mimeTypeLine = null ;

sb.delete(0,sb.length());

while ((mimeTypeLine = br.readLine()) != null) {

sb.append(mimeTypeLine+"\n");

}

} catch (Exception e) {

e.printStackTrace();

}

return sb;

}

}

[/code]