Android Open Source - NASAImageOfTheDay Main Activity

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From Project

Back to project page NASAImageOfTheDay.

License

The source code is released under:

MIT License

Java Source Code

package com.example.nasaproject;
//from w  ww.j  a v  a 2s  .co m
import java.io.IOException;
import java.util.ArrayList;

import android.app.Activity;
import android.app.WallpaperManager;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageButton;
import android.widget.ImageView;
import android.widget.ProgressBar;
import android.widget.TextView;
import android.widget.Toast;

import com.example.parser.ApodFeedItem;
import com.example.parser.BackgroundTask;
import com.example.parser.GetImageInBackground;
import com.example.parser.ReturnFromBackgroundTask;


public class MainActivity extends Activity implements ReturnFromBackgroundTask {

  private static final String mURL = "http://www.nasa.gov/rss/dyn/image_of_the_day.rss";
  final int DEFAULT_FEED_NUMBER = 0;
  int CURRENT_FEED_NUMBER = 0;
  ArrayList<ApodFeedItem> list = null;
  private TextView title;
  private TextView date;
  private ImageView image;
  private TextView description;
  private Button buttonSetWallpaper;
  private ProgressBar pb;
  private Bitmap backgroundImage;
  private ImageButton left,right;



  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    initializeUI();
    initilizeOnClickListener();

    pb.setVisibility(ProgressBar.VISIBLE); 
    BackgroundTask t = new BackgroundTask(mURL);
    t.deligate = MainActivity.this;
    t.execute();
  }

  private void initializeUI(){

    title = (TextView) findViewById(R.id.imageTitle);
    date = (TextView) findViewById(R.id.imageDate);
    image = (ImageView) findViewById(R.id.imageDisplay);
    description = (TextView) findViewById(R.id.imageDesc);
    buttonSetWallpaper = (Button) findViewById(R.id.button_setAsWallpaper);
    pb = (ProgressBar) findViewById(R.id.progressBar1);
    left = (ImageButton) findViewById(R.id.imageButtonLeft);
    right = (ImageButton) findViewById(R.id.imageButtonRight);
  }

  private void initilizeOnClickListener() {
    
    buttonSetWallpaper.setVisibility(Button.INVISIBLE);
    
    left.setOnClickListener(new OnClickListener() {
      @Override
      public void onClick(View v) {
        pb.setVisibility(ProgressBar.VISIBLE);
        --CURRENT_FEED_NUMBER;
        refreshDisplay(list.get(CURRENT_FEED_NUMBER).getTitle(),
            list.get(CURRENT_FEED_NUMBER).getDate(), 
            list.get(CURRENT_FEED_NUMBER).getImageUrl(), 
            list.get(CURRENT_FEED_NUMBER).getDescription());
      }
    });
    right.setOnClickListener(new OnClickListener() {
      @Override
      public void onClick(View v) {
        pb.setVisibility(ProgressBar.VISIBLE);
        ++CURRENT_FEED_NUMBER;
        refreshDisplay(list.get(CURRENT_FEED_NUMBER).getTitle(),
            list.get(CURRENT_FEED_NUMBER).getDate(), 
            list.get(CURRENT_FEED_NUMBER).getImageUrl(), 
            list.get(CURRENT_FEED_NUMBER).getDescription());
      }
    });
    buttonSetWallpaper.setOnClickListener(new  OnClickListener() {
      @Override
      public void onClick(View v) {
        Toast.makeText(MainActivity.this, "Wallpaper is set !!! ", Toast.LENGTH_LONG).show();
        WallpaperManager wm = WallpaperManager.getInstance(MainActivity.this);
        try {
          wm.setBitmap(backgroundImage);
        } catch (IOException e) {
          e.printStackTrace();
        }
      }
    });

  }

  @Override
  public void responseFromBackground(ArrayList<ApodFeedItem> response) {
    //all the content of rss feed in list call refreshDispaly in Main Activity

    list = response;

    CURRENT_FEED_NUMBER = DEFAULT_FEED_NUMBER;

    refreshDisplay(list.get(DEFAULT_FEED_NUMBER).getTitle(),
        list.get(DEFAULT_FEED_NUMBER).getDate(), 
        list.get(DEFAULT_FEED_NUMBER).getImageUrl(), 
        list.get(DEFAULT_FEED_NUMBER).getDescription());

  }



  public void refreshDisplay(String mTitle, String mDate,String mImageUrl, String mDescription){
//    title.setText(mTitle);
//    date.setText(mDate);
//    description.setText(mDescription);

    Log.i("Rahooool", "About to send request for image : "+mImageUrl);
    GetImageInBackground imageFromBackground = new GetImageInBackground(mImageUrl);
    imageFromBackground.deligate = this;
    imageFromBackground.execute();    



  }

  
  @Override
  public void responseImageFromBackground(Bitmap response) {
    Log.i("Rahooool","Setting Image From Background ");
    pb.setVisibility(ProgressBar.INVISIBLE);
    buttonSetWallpaper.setVisibility(Button.VISIBLE);
    image.setImageBitmap(response);
    title.setText( list.get(CURRENT_FEED_NUMBER).getTitle() );
    date.setText( list.get(CURRENT_FEED_NUMBER).getDate() );  
    description.setText( list.get(CURRENT_FEED_NUMBER).getDescription() );
    
    backgroundImage = response;
    if (CURRENT_FEED_NUMBER == 0) {
      left.setVisibility(ImageButton.INVISIBLE);
    }else {
      left.setVisibility(ImageButton.VISIBLE);
    }

    if (CURRENT_FEED_NUMBER == list.size()-1) {
      right.setVisibility(ImageButton.INVISIBLE);
    }else {
      right.setVisibility(ImageButton.VISIBLE);
    }
    
    

      
    
    //refreshDisplay(response.get(1).getTitle(), response.get(1).getDate(),response.get(1).getImageUrl(),response.get(1).getDescription());
  }
}

Java Source Code List

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