Android 遍历SDCARD的文件夹并显示目录信息

Android 遍历SDCARD的文件夹并显示目录信息

private String mResult = new String(); private String[] mFileList = null;

1)、显示所有文件/

File flist = new File("/mnt/sdcard");

mFileList = flist.list();

for(String str: mFileList){

mResult += str;

mResult += "\n";

}

TextView tv = (TextView)findViewById(R.id.result);
tv.setText(mResult.toString());

2)、显示指定后缀名的文件/

FilenameFilter fnf = new FilenameFilter(){

public boolean accept(File dir, String filename) {

if(filename.endsWith(".mp3")) return true;

return false;

}

};

mFileList = flist.list(fnf);

for(String str: mFileList){

mResult += str;

mResult += "\n";

}

3)、仅显示目录/

FileFilter ff = new FileFilter(){

public boolean accept(File pathname) {

return pathname.isDirectory();

}

};

File[] fileDir = flist.listFiles(ff);

for (int i = 0; i < fileDir.length; i++) {

String str = fileDir[i].getName();

mResult += str;

mResult += "\n";

}

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