[Basic] Үндсэн ойлголт авахад хэрэгтэй зүйлс

• Application name
• Name with icon
• Title
• Android market name
• Icon name

• Activity
• AndroidManifest.xml
• Application Nodes
• Intent Filter
• Action
• android.intent.action.MAIN
• Category
• android.intent.category.LAUNCHER
• Data
• Package

[NabarLibrary] [FileManager] Файл татах library

source credit: http://www.helloandroid.com/tutorials/how-download-fileimage-url-your-device

package nabar.library.filemanager;

import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.net.URLConnection;

import org.apache.http.util.ByteArrayBuffer;

import android.os.StrictMode;
import android.util.Log;

public class FileManager{
private final String filePath = "/sdcard/nabar/";
private final String urlPath = "http://download url";

public void downloadFromUrl(String fileURL, String fileName){
StrictMode.ThreadPolicy policy = new
StrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);

        File fileDirectory = new File(filePath);
if(!fileDirectory.exists()){
if(!fileDirectory.mkdirs()){
Log.e("FileManager::", "Problem creating Nabar directory");
}
}

try {
       URL url = new URL(urlPath+fileURL); //you can write here any link
       File file = new File(filePath+fileName);
     
       long startTime = System.currentTimeMillis();
       Log.d("FileManager", "download begining");
       Log.d("FileManager", "download url:" + url);
       Log.d("FileManager", "downloaded file name:" + fileName);
       /* Open a connection to that URL. */
       URLConnection ucon = url.openConnection();

       /*
        * Define InputStreams to read from the URLConnection.
        */
       InputStream is = ucon.getInputStream();
       BufferedInputStream bis = new BufferedInputStream(is);

       /*
        * Read bytes to the Buffer until there is nothing more to read(-1).
        */
       ByteArrayBuffer baf = new ByteArrayBuffer(50);
       int current = 0;
       while ((current = bis.read()) != -1) {
baf.append((byte) current);
       }

       /* Convert the Bytes read to a String. */
       FileOutputStream fos = new FileOutputStream(file);
       fos.write(baf.toByteArray());
       fos.close();
       Log.d("FileManager", "download ready in"
+ ((System.currentTimeMillis() - startTime) / 1000)
+ " sec");
} catch (IOException e) {
       Log.d("FileManager", "Error: " + e);
}
}
}

[Intent] ашиглаад activity хооронд шилжих

Intent i = new Intent(getApplicationContext(), NerActivity.class);
startActivity(i);