Android Open Source - gizmooi Photo Loader Runnable

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Back to project page gizmooi.

License

The source code is released under:

GNU General Public License

Java Source Code

package com.timvdalen.gizmooi;
/* www  . java  2s. c  om*/
import java.io.IOException;

import org.xmlpull.v1.XmlPullParserException;

import android.annotation.SuppressLint;
import android.app.PendingIntent;
import android.appwidget.AppWidgetManager;
import android.appwidget.AppWidgetProviderInfo;
import android.content.Context;
import android.content.Intent;
import android.graphics.Bitmap;
import android.os.Build;
import android.os.Bundle;
import android.util.DisplayMetrics;
import android.view.WindowManager;
import android.widget.RemoteViews;

/**
 * Runnable that loads a Photo and places it in a widget
 */
public class PhotoLoaderRunnable implements Runnable{
  //* The Context to use for creating Intents
  private Context context;
  
  //* The ID of the widget to update
  private int appWidgetId;
  
  //* The AppWidgetManager to update the widget on
  private AppWidgetManager appWidgetManager;
  
  //* Photo to display
  private Photo photo;
  
  //* If this is >1, use sampling for the Photo
  private int sample;

  public PhotoLoaderRunnable(Context context, int appWidgetId, AppWidgetManager appWidgetManager){
    this.context = context;
    this.appWidgetId = appWidgetId;
    this.appWidgetManager = appWidgetManager;
    
    this.photo = null;
    this.sample = 1;
  }

  @Override
  public void run(){
    // Determine screen size in pixels
    DisplayMetrics dm = new DisplayMetrics();
    ((WindowManager) this.context.getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay().getMetrics(dm);
    
    RemoteViews views = new RemoteViews(context.getPackageName(), this.getBaseLayout());
    
    try{
      if(this.photo == null){
        // Grab a Photo
        this.photo = FlickrAPIHandler.getPhoto();
      }
      
      // Download the image
      Bitmap bmpPhoto = this.photo.getBitmap(dm, this.sample);
      // Set the image
      views.setImageViewBitmap(R.id.imgMooi, bmpPhoto);
      
      // Setup click handler
      Intent intent = new Intent(this.context, ToastShowActivity.class);
      intent.putExtra("photo", this.photo);
      
      PendingIntent pendingIntent = PendingIntent.getActivity(this.context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
      
      views.setOnClickPendingIntent(R.id.imgMooi, pendingIntent);
      
      // Update the widget
      this.appWidgetManager.updateAppWidget(this.appWidgetId, views);
    }catch(java.lang.IllegalArgumentException e){
      // We're out of memory, try it again with a higher sampling value!
      // To anyone reading this: I realize this is horrible but I can't find a way of detecting if this will happen.
      // I'm open to suggestions
      this.sample *= 2;
      
      this.run();
    }catch(IOException e){
      // We'll try again tomorrow, just use the Photo that's currently set
      return;
    }catch(XmlPullParserException e){
      // We'll try again tomorrow, just use the Photo that's currently set
      return;
    }
  }
  
  @SuppressLint("NewApi")
  private int getBaseLayout(){
    //Decide whether or not we're running on the lockscreen and set the base layout accordingly
    boolean isKeyguard;
    if(Build.VERSION.SDK_INT < 17){
      // Lockscreen widgets aren't supported so this is a homescreen widget
      isKeyguard = false;
    }else{
      Bundle myOptions = this.appWidgetManager.getAppWidgetOptions(appWidgetId);
      int category = myOptions.getInt(AppWidgetManager.OPTION_APPWIDGET_HOST_CATEGORY, -1);
      isKeyguard = (category == AppWidgetProviderInfo.WIDGET_CATEGORY_KEYGUARD);
    }

    return isKeyguard ? R.layout.lockscreen_layout : R.layout.widget_layout;
  }
}

Java Source Code List

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