Android Open Source - PhoneProfiles_Eclipse Applications Cache

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Back to project page PhoneProfiles_Eclipse.

License

The source code is released under:

Apache License

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Java Source Code

package sk.henrichg.phoneprofiles;
//  w  w  w .  ja  v a  2s . c o m
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;

import android.content.Context;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.graphics.drawable.Drawable;

public class ApplicationsCache {

  private class PackInfo {
    private String appLabel = "";
    private String packageName = "";
    //private String versionName = "";
    //private int versionCode = 0;
    private Drawable icon;
  }
  
  private class SortList implements Comparator<PackInfo> {

    public int compare(PackInfo lhs, PackInfo rhs) {
      return lhs.appLabel.compareToIgnoreCase(rhs.appLabel);
    }
    
  }
  
  private ArrayList<PackInfo> applicationsList;
  private boolean cached;
  private boolean cancelled;
  
  public ApplicationsCache()
  {
    applicationsList = new ArrayList<PackInfo>();
    cached = false;
  }
  
  public void getApplicationsList(Context context)
  {
    if (cached) return;
    
    cancelled = false;
    
    applicationsList.clear();
    
    PackageManager packageManager = context.getPackageManager();
    List<PackageInfo> packs = packageManager.getInstalledPackages(0);
    
    for (int i = 0; i < packs.size(); i++)
    {
      PackageInfo packageInfo = packs.get(i);

      if (packageManager.getLaunchIntentForPackage(packageInfo.packageName) != null)
      {
        PackInfo newInfo = new PackInfo();
        
        newInfo.appLabel = packageInfo.applicationInfo.loadLabel(packageManager).toString();
        newInfo.packageName = packageInfo.packageName;
        //newInfo.versionName = packageInfo.versionName;
        //newInfo.versionCode = packageInfo.versionCode;
        newInfo.icon = packageInfo.applicationInfo.loadIcon(packageManager);
        
        applicationsList.add(newInfo);
        
        if (cancelled)
          return;
      }
    }
    
    Collections.sort(applicationsList, new SortList());
    
    cached = true;
  }
  
  public int getLength()
  {
    if (cached) 
      return applicationsList.size();
    else
      return 0;
  }
  
  public String getPackageName(int position)
  {
    if (cached) 
      return applicationsList.get(position).packageName;
    else
      return "";
  }
  
  public String getApplicationLabel(int position)
  {
    if (cached) 
      return applicationsList.get(position).appLabel;
    else
      return "";
  }
  
  public Drawable getApplicationIcon(int position)
  {
    if (cached) 
      return applicationsList.get(position).icon;
    else
      return null;
  }
  
  public void clearCache(boolean nullList)
  {
    applicationsList.clear();
    if (nullList)
      applicationsList = null;
    cached = false;
  }
  
  public boolean isCached()
  {
    return cached;
  }
  
  public void cancelCaching()
  {
    cancelled = true;
  }
  
}

Java Source Code List