Download Magager

This example shows how you can create download manager activity.

Algorithm:

1.) Create a new project by File-> New -> Android Project name it DownloadManager.

2.) Add following permission into your manifest file:

1	<uses-permission android:name="android.permission.INTERNET"></uses-permission>

3.) Write following into main.xml:

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<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"     android:orientation="vertical" android:layout_width="fill_parent"     android:layout_height="fill_parent">     <Button android:text="Start Download" android:id="@+id/button1"         android:layout_width="wrap_content" android:layout_height="wrap_content"         android:onClick="onClick"></Button>     <Button android:text="View Downloads" android:id="@+id/button2"         android:layout_width="wrap_content" android:layout_height="wrap_content"         android:onClick="showDownload"></Button>     <ImageView android:layout_height="wrap_content" android:id="@+id/imageView1"         android:src="@drawable/ic_launcher" android:layout_width="wrap_content"></ImageView> </LinearLayout>

4.) Run for output.

Steps:

1.) Create a project named DownloadManager and set the information as stated in the image.

Build Target: Android 4.0
Application Name: DownloadManager
Package Name: com. example. DownloadManager
Activity Name: DownloadManagerActivity
Min SDK Version: 9

2.) Open DownloadManagerActivity.java file and write following code there:

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package com.example.downloadmanager;   import android.app.Activity; import android.app.DownloadManager; import android.app.DownloadManager.Query; import android.app.DownloadManager.Request; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.content.IntentFilter; import android.database.Cursor; import android.net.Uri; import android.os.Bundle; import android.view.View; import android.widget.ImageView;   public class DownloadManagerActivity extends Activity {     private long enqueue;     private DownloadManager dm;       /** Called when the activity is first created. */     @Override     public void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.main);           BroadcastReceiver receiver = new BroadcastReceiver() {             @Override             public void onReceive(Context context, Intent intent) {                 String action = intent.getAction();                 if (DownloadManager.ACTION_DOWNLOAD_COMPLETE.equals(action)) {                     long downloadId = intent.getLongExtra(                             DownloadManager.EXTRA_DOWNLOAD_ID, 0);                     Query query = new Query();                     query.setFilterById(enqueue);                     Cursor c = dm.query(query);                     if (c.moveToFirst()) {                         int columnIndex = c                                 .getColumnIndex(DownloadManager.COLUMN_STATUS);                         if (DownloadManager.STATUS_SUCCESSFUL == c                                 .getInt(columnIndex)) {                               ImageView view = (ImageView) findViewById(R.id.imageView1);                             String uriString = c                                     .getString(c                                             .getColumnIndex(DownloadManager.COLUMN_LOCAL_URI));                             view.setImageURI(Uri.parse(uriString));                         }                     }                 }             }         };           registerReceiver(receiver, new IntentFilter(                 DownloadManager.ACTION_DOWNLOAD_COMPLETE));     }       public void onClick(View view) {         dm = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);         Request request = new Request(                 Uri.parse("https://encrypted-tbn3.google.com/images?q=tbn:ANd9GcTIQQgqjfdNDRYQ3btnNJwRB07htjMKgeW2FyZrDCkxM7lfikmtHg"));         enqueue = dm.enqueue(request);       }       public void showDownload(View view) {         Intent i = new Intent();         i.setAction(DownloadManager.ACTION_VIEW_DOWNLOADS);         startActivity(i);     } }

3.) Compile and build the project.

Output