Android Open Source - TaskManager Activity Main

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License

The source code is released under:

Apache License

Java Source Code

package com.ggstudios.tools.taskmanager;
//from   ww  w.  j a v  a  2 s. c om
import java.util.ArrayList;
import java.util.List;

import com.actionbarsherlock.app.ActionBar;
import com.actionbarsherlock.app.ActionBar.Tab;
import com.actionbarsherlock.app.SherlockFragmentActivity;
import com.actionbarsherlock.view.Menu;
import com.actionbarsherlock.view.MenuInflater;
import com.actionbarsherlock.view.MenuItem;

import android.os.Bundle;
import android.content.Intent;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.app.FragmentTransaction;
import android.support.v4.view.ViewPager;

public class ActivityMain extends SherlockFragmentActivity {
  private static final String TAG = "ActivityMain";

  ActionBar actionBar;
  ViewPager pager;
  MainPagerAdapter adapter;

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

    actionBar = getSupportActionBar();
    // Specify that tabs should be displayed in the action bar.
    actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);

    pager = (ViewPager) findViewById(R.id.pager);
    pager.setOnPageChangeListener(
              new ViewPager.SimpleOnPageChangeListener() {
                  @Override
                  public void onPageSelected(int position) {
                      // When swiping between pages, select the
                      // corresponding tab.
                      actionBar.setSelectedNavigationItem(position);
                  }
              });

    List<FragmentContainer> frags = new ArrayList<FragmentContainer>();
    frags.add(new FragmentContainer(ActivityProcesses.class, R.string.Processes));
    frags.add(new FragmentContainer(ActivityApps.class, R.string.Apps));

    for(FragmentContainer c : frags){
      actionBar.addTab(actionBar.newTab().setText(c.resTitle).setTabListener(tabListener));
    }

    adapter = new MainPagerAdapter(getSupportFragmentManager(), frags);

    pager.setAdapter(adapter);
  }
  
  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
      MenuInflater inflater = getSupportMenuInflater();
      inflater.inflate(R.menu.activity_main, menu);
      return true;
  }
  
  @Override
  public void onDestroy(){
    super.onDestroy();
    Preferences.getInstance().commit();
  }
  
  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
      // Handle item selection
      switch (item.getItemId()) {
          case R.id.menu_settings:
              Intent i = new Intent(this, SettingsActivity.class);
              i.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
              startActivity(i);
              return true;
          default:
              return super.onOptionsItemSelected(item);
      }
  }

  ActionBar.TabListener tabListener = new ActionBar.TabListener() {
    public void onTabSelected(ActionBar.Tab tab, FragmentTransaction ft) {
      // When the tab is selected, switch to the
      // corresponding page in the ViewPager.
      pager.setCurrentItem(tab.getPosition());
    }

    @Override
    public void onTabReselected(Tab arg0, FragmentTransaction arg1) {
      // TODO Auto-generated method stub

    }

    @Override
    public void onTabUnselected(Tab arg0, FragmentTransaction arg1) {
      // TODO Auto-generated method stub

    }
  };

  private class FragmentContainer {
    Class<?> fragment;
    int resTitle;

    FragmentContainer(Class<?> frag, int resIdTitle){
      fragment = frag;
      resTitle = resIdTitle;
    }

  }

  // Since this is an object collection, use a FragmentStatePagerAdapter,
  // and NOT a FragmentPagerAdapter.
  public class MainPagerAdapter extends FragmentPagerAdapter {
    List<FragmentContainer> fragments;

    public MainPagerAdapter(FragmentManager fm, List<FragmentContainer> fragments) {
      super(fm);

      this.fragments = fragments;
    }

    @Override
    public Fragment getItem(int i) {
      try {
        return (Fragment) fragments.get(i).fragment.newInstance();
      } catch (InstantiationException e) {
        DebugLog.e(TAG, e);
      } catch (IllegalAccessException e) {
        DebugLog.e(TAG, e);
      }

      return null;
    }

    @Override
    public int getCount() {
      return fragments.size();
    }

    @Override
    public CharSequence getPageTitle(int position) {
      return getResources().getString(fragments.get(position).resTitle);
    }
  }
}

Java Source Code List

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