Android Open Source - ADNHome Application List Fragment

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License

The source code is released under:

Copyright (c) 2013, David Krauser All rights reserved. Redistribution and use in source and binary forms, with or without modification, are not permitted. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT ...

Java Source Code

package com.davidkrauser.adnhome;
//from w  ww  . j  a  v a2s.co m
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.TextView;

public class ApplicationListFragment extends Fragment {

  // TODO: this is a mess and probably unsafe. Shouldn't need all of these globals. 
  ApplicationListAdapter mAdapter;
  PackageManager mPackageManager;
  Context mContext;
  GridView mView;
  
  public View onCreateView(LayoutInflater inflater, ViewGroup container,
      Bundle savedInstanceState) {
    mView = (GridView) inflater.inflate(R.layout.application_list,
        container, false);
    mContext = inflater.getContext();
    mPackageManager = inflater.getContext().getPackageManager();

    buildApplicationListAdapter();

    return mView;
  }
  
  @Override
  public void onResume()
  {
    buildApplicationListAdapter();
    super.onResume();
  }
  
  private void buildApplicationListAdapter()
  {
    Intent mainIntent = new Intent(Intent.ACTION_MAIN, null);
    mainIntent.addCategory(Intent.CATEGORY_LAUNCHER);

    final List<ResolveInfo> packages = mPackageManager.queryIntentActivities(mainIntent,
        0);
    Collections.sort(packages, new ResolveInfo.DisplayNameComparator(mPackageManager));

    ArrayList<ApplicationData> applications = new ArrayList<ApplicationData>();

    for (ResolveInfo info : packages) {
      ApplicationData application = new ApplicationData();
      application.mIcon = info.loadIcon(mPackageManager);
      application.mName = info.loadLabel(mPackageManager).toString();
      application.mIntent = mPackageManager
          .getLaunchIntentForPackage(info.activityInfo.packageName);
      applications.add(application);
    }

    mView.setAdapter(new ApplicationListAdapter(mContext,applications));
  }

  private class ApplicationData {
    public Drawable mIcon;
    public String mName;
    public Intent mIntent;
  }

  private class ApplicationListAdapter extends ArrayAdapter<ApplicationData> {

    public ApplicationListAdapter(Context context,
        List<ApplicationData> objects) {
      super(context, 0, objects);
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
      
      LayoutInflater inflater = LayoutInflater.from(getContext());
      View view = (convertView != null)? convertView : inflater.inflate(R.layout.application, parent, false);

      final ApplicationData application = getItem(position);

      if (application != null) {
        final ImageView iv = (ImageView) view
            .findViewById(R.id.application_icon);
        iv.setImageDrawable(application.mIcon);
        iv.setAlpha(1.0f);

        TextView tv = (TextView) view
            .findViewById(R.id.application_label);
        tv.setText(application.mName);

        view.setOnClickListener(new View.OnClickListener() {
          @Override
          public void onClick(View v) {
            iv.setAlpha(0.5f);
            startActivity(application.mIntent);
          }
        });
      }

      return view;
    }
    
  }
}

Java Source Code List

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