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我正在使用此功能在TextView
中顯示ArrayList
,它將顯示SDCard中的所有目錄和文件,但我想用ListView
代替。我應該怎麼做才能在ListView
中顯示目錄和SD卡的所有文件?如何在ListView中顯示文件的陣列列表
方法getfile
讀取所有的文件和目錄,並添加到ArrayList
類對象的文件清單:
private File root;
private ArrayList<File> fileList = new ArrayList<File>();
private LinearLayout view;
private EditText filename;
private Button search;
private TextView allfiles,searchfile;
Spannable txt;
boolean check=false;
ListView l;
String [] strarray;
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
l=(ListView)findViewById(R.id.listView1);
view = (LinearLayout) findViewById(R.id.view);``
filename=(EditText)findViewById(R.id.filename);
allfiles=(TextView)findViewById(R.id.allfiles);
searchfile=(TextView)findViewById(R.id.searchfile);
search=(Button)findViewById(R.id.search);
String path=Environment.getExternalStorageDirectory().toString();
root = new File(path);
getfile(root);
for (int i = 0; i < fileList.size(); i++)
{
if (fileList.get(i).isDirectory())
{
txt=new SpannableString(fileList.get(i).getName());
txt.setSpan(new ForegroundColorSpan(Color.RED), 0, txt.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
allfiles.append(txt);
allfiles.append("\n");
}
// if file than show in default color
else
{
allfiles.append(fileList.get(i).getName());
allfiles.append("\n");
allfiles.setPadding(5, 5, 5, 5);
}
}
的getfile
方法顯示在SD卡中的所有目錄和文件:
public ArrayList<File> getfile(File dir)
{
File listFile[] = dir.listFiles();
if (listFile != null && listFile.length > 0)
{
for (int i = 0; i < listFile.length; i++)
{
if (listFile[i].isDirectory())
{
fileList.add(listFile[i]);
getfile(listFile[i]);// recursive calling to scan hole sdcard
}
else
{
//condition to check file exists or not if yes add it to searchfile text view written below
if(listFile[i].getName().toString().substring(0,listFile[i].getName().toString().indexOf(".")).compareToIgnoreCase(filename.getText().toString())==0)
{
searchfile.append(listFile[i].getName());
searchfile.append("\n");
check=true;
}
fileList.add(listFile[i]);
}
}
return fileList;