android 通过ftp协议访问服务器上的目录，通过listview 展示

一个简单的代码，基本功能都已实现，可以根据自己需求修改。

/**
 * Automatically generated file. DO NOT MODIFY
 */
package comvoice.example.zhangbin.ftppreviewtest.test;

public final class BuildConfig {
  public static final boolean DEBUG = Boolean.parseBoolean（“true“）;
  public static final String APPLICATION_ID = “comvoice.example.zhangbin.ftppreviewtest.test“;
  public static final String BUILD_TYPE = “debug“;
  public static final String FLAVOR = ““;
  public static final int VERSION_CODE = 1;
  public static final String VERSION_NAME = “1.0“;
}

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2018-04-12 10:34  ftppreviewtest\
     文件           8  2018-04-12 09:24  ftppreviewtest\.gitignore
     目录           0  2018-04-12 10:34  ftppreviewtest\build\
     目录           0  2018-04-12 10:34  ftppreviewtest\build\generated\
     目录           0  2018-04-12 10:34  ftppreviewtest\build\generated\assets\
     目录           0  2018-04-12 10:34  ftppreviewtest\build\generated\assets\shaders\
     目录           0  2018-04-17 17:07  ftppreviewtest\build\generated\assets\shaders\debug\
     文件     2811099  2017-12-12 10:36  ftppreviewtest\build\generated\mockable-android-26.v3.jar
     目录           0  2018-04-12 09:25  ftppreviewtest\build\generated\res\
     目录           0  2018-04-12 09:25  ftppreviewtest\build\generated\res\pngs\
     目录           0  2018-04-12 09:25  ftppreviewtest\build\generated\res\pngs\androidTest\
     目录           0  2018-04-17 17:07  ftppreviewtest\build\generated\res\pngs\androidTest\debug\
     目录           0  2018-04-12 09:25  ftppreviewtest\build\generated\res\pngs\debug\
     目录           0  2018-04-12 09:25  ftppreviewtest\build\generated\res\pngs\debug\drawable-anydpi-v21\
     文件        5776  2018-04-12 09:25  ftppreviewtest\build\generated\res\pngs\debug\drawable-anydpi-v21\ic_launcher_background.xml
     目录           0  2018-04-12 09:25  ftppreviewtest\build\generated\res\pngs\debug\drawable-hdpi\
     文件         730  2018-04-12 09:25  ftppreviewtest\build\generated\res\pngs\debug\drawable-hdpi\ic_launcher_background.png
     目录           0  2018-04-12 09:25  ftppreviewtest\build\generated\res\pngs\debug\drawable-ldpi\
     文件         331  2018-04-12 09:25  ftppreviewtest\build\generated\res\pngs\debug\drawable-ldpi\ic_launcher_background.png
     目录           0  2018-04-12 09:25  ftppreviewtest\build\generated\res\pngs\debug\drawable-mdpi\
     文件         407  2018-04-12 09:25  ftppreviewtest\build\generated\res\pngs\debug\drawable-mdpi\ic_launcher_background.png
     目录           0  2018-04-12 09:25  ftppreviewtest\build\generated\res\pngs\debug\drawable-xhdpi\
     文件        1320  2018-04-12 09:25  ftppreviewtest\build\generated\res\pngs\debug\drawable-xhdpi\ic_launcher_background.png
     目录           0  2018-04-12 09:25  ftppreviewtest\build\generated\res\pngs\debug\drawable-xxhdpi\
     文件        3254  2018-04-12 09:25  ftppreviewtest\build\generated\res\pngs\debug\drawable-xxhdpi\ic_launcher_background.png
     目录           0  2018-04-12 09:25  ftppreviewtest\build\generated\res\pngs\debug\drawable-xxxhdpi\
     文件        4380  2018-04-12 09:25  ftppreviewtest\build\generated\res\pngs\debug\drawable-xxxhdpi\ic_launcher_background.png
     目录           0  2018-04-12 09:25  ftppreviewtest\build\generated\res\resValues\
     目录           0  2018-04-12 09:25  ftppreviewtest\build\generated\res\resValues\androidTest\
     目录           0  2018-04-17 17:07  ftppreviewtest\build\generated\res\resValues\androidTest\debug\
     目录           0  2018-04-17 17:07  ftppreviewtest\build\generated\res\resValues\debug\
............此处省略2084个文件信息