[컴][안드로이드] 간단한 file list 를 보는 프로그램 예제

 

simple file list, file explorer, file listView

FileListAdapter.java

package com.example.com.mugallery;

import java.io.File;
import java.util.ArrayList;



import android.app.Activity;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;

public class FileListAdapter extends BaseAdapter {

	
	private Context mContext;
	private LayoutInflater mInflater;
	
	ArrayList<String> mData;

	public FileListAdapter(Activity a, File rootPath) {
		mContext = a.getApplicationContext();
		mInflater = a.getLayoutInflater();
		
		File[] list = rootPath.listFiles();
		
		mData = new ArrayList<String>();
		for(File f : list){
			mData.add(f.getPath());
		}

		
	}

	@Override
	public int getCount() {

		return mData.size();
	}

	@Override
	public Object getItem(int position) {
		return mData.get(position);
	}

	@Override
	public long getItemId(int position) {
		return position;
	}

	@Override
	public View getView(int position, View convertView, ViewGroup parent) {
		
		ViewHolder h = new ViewHolder();
		if(convertView == null){
			convertView = mInflater.inflate(R.layout.afile, null);
			h.tv = (TextView)convertView.findViewById(R.id.file_item);
			
			convertView.setTag(h);
			
			
			
		}else
		{
			h = (ViewHolder)convertView.getTag();
			
		}
		
		h.tv.setText(mData.get(position));
		return convertView;
	}
	
	static class ViewHolder {
		TextView tv;
	}

}

FileListActivity.java

package com.example.com.mugallery;


import java.io.File;

import android.app.Activity;
import android.os.Bundle;
import android.os.Environment;
import android.widget.ListView;


public class FileListActivity extends Activity {
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_filelist);
        
        ListView lv = (ListView)findViewById(R.id.filelistview);
        
        if (Environment.getExternalStorageState().equals(android.os.Environment.MEDIA_MOUNTED))
        {
	        FileListAdapter fileAdapter = new FileListAdapter(this,
	        		new File(Environment.getExternalStorageDirectory(),
	                        Environment.DIRECTORY_DOWNLOADS)
	        );
	        lv.setAdapter(fileAdapter);
        }
        

       

    }


    
}

afile.xml

<?xml version="1.0" encoding="utf-8"?>

<TextView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/file_item"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />

activity_filelist.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <ListView
        android:id="@+id/filelistview"
        android:layout_width="match_parent"
		android:layout_height="match_parent" />

</LinearLayout>