Android Open Source - Gents Main Activity

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License

The source code is released under:

MIT License

Java Source Code

package org.gsfraley.gents.app.main;
/*from  w  w  w .ja  v a 2s .  co m*/
import java.util.Locale;

import org.gsfraley.gents.R;
import org.gsfraley.gents.app.fragments.RunningServerFragment;
import org.gsfraley.gents.app.fragments.ServerTypeFragment;
import org.gsfraley.gents.service.ServerBoss;
import org.gsfraley.gents.service.ServerBoss.BossBinder;

import android.app.ActionBar;
import android.app.FragmentTransaction;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.ServiceConnection;
import android.os.Bundle;
import android.os.IBinder;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.view.Menu;

public class MainActivity extends FragmentActivity implements
    ActionBar.TabListener {
  
  SectionsPagerAdapter mSectionsPagerAdapter;
  ViewPager mViewPager;
  MainActivityListener mListener;
  ServerBoss mService;
  boolean mBound;
  
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    // Build the listener
    mListener = new MainActivityListener(this);
    
    // Build the Boss Service if not already started
    if(!ServerBoss.isRunning()) {
      // Set up the boss service
      Intent startIntent = new Intent(this, ServerBoss.class);
      startService(startIntent);
    }

    // ServerBoss should already be foregrounded, let it do its thing
    Intent bindIntent = new Intent(this, ServerBoss.class);
    bindService(bindIntent, mConnection, Context.BIND_ALLOW_OOM_MANAGEMENT);
    
    // Set up the action bar.
    final ActionBar actionBar = getActionBar();
    actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);

    // Create the adapter that will return a fragment for each of the three
    // primary sections of the app.
    mSectionsPagerAdapter = new SectionsPagerAdapter(
        getSupportFragmentManager());

    // Set up the ViewPager with the sections adapter.
    mViewPager = (ViewPager) findViewById(R.id.pager);
    mViewPager.setAdapter(mSectionsPagerAdapter);

    // When swiping between different sections, select the corresponding
    // tab. We can also use ActionBar.Tab#select() to do this if we have
    // a reference to the Tab.
    mViewPager
        .setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
          @Override
          public void onPageSelected(int position) {
            actionBar.setSelectedNavigationItem(position);
          }
        });

    // For each of the sections in the app, add a tab to the action bar.
    for (int i = 0; i < mSectionsPagerAdapter.getCount(); i++) {
      // Create a tab with text corresponding to the page title defined by
      // the adapter. Also specify this Activity object, which implements
      // the TabListener interface, as the callback (listener) for when
      // this tab is selected.
      actionBar.addTab(actionBar.newTab()
          .setText(mSectionsPagerAdapter.getPageTitle(i))
          .setTabListener(this));
    }
  }

  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.main, menu);
    return true;
  }

  @Override
  public void onTabSelected(ActionBar.Tab tab,
      FragmentTransaction fragmentTransaction) {
    // When the given tab is selected, switch to the corresponding page in
    // the ViewPager.
    mViewPager.setCurrentItem(tab.getPosition());
  }

  @Override
  public void onTabUnselected(ActionBar.Tab tab,
      FragmentTransaction fragmentTransaction) {
  }

  @Override
  public void onTabReselected(ActionBar.Tab tab,
      FragmentTransaction fragmentTransaction) {
  }

  @Override
  protected void onDestroy() {
    super.onDestroy();
    unbindService(mConnection);
    // TODO: Create a toggle so that the ServerBoss can run outside of the activity
    Intent stopIntent = new Intent(this, ServerBoss.class);
    stopService(stopIntent);
  }
  
  public MainActivityListener getListener() {
    return mListener;
  }
  
  /**
   * A {@link FragmentPagerAdapter} that returns a fragment corresponding to
   * one of the sections/tabs/pages.
   */
  public class SectionsPagerAdapter extends FragmentPagerAdapter {

    public SectionsPagerAdapter(FragmentManager fm) {
      super(fm);
    }

    @Override
    public Fragment getItem(int position) {
      // getItem is called to instantiate the fragment for the given page.
      switch(position) {
      case 0:
        RunningServerFragment runningServerFragment = new RunningServerFragment();
        mListener.rsFragment = runningServerFragment;
        return runningServerFragment;
      case 1:
        ServerTypeFragment serverTypeFragment = new ServerTypeFragment();
        mListener.stFragment = serverTypeFragment;
        return serverTypeFragment;
      }
      return null;
    }

    @Override
    public int getCount() {
      // Show 2 total pages.
      return 2;
    }

    @Override
    public CharSequence getPageTitle(int position) {
      Locale l = Locale.getDefault();
      switch (position) {
      case 0:
        return getString(R.string.title_running_server_section).toUpperCase(l);
      case 1:
        return getString(R.string.title_server_type_section).toUpperCase(l);
      }
      return null;
    }
  }
  
  private ServiceConnection mConnection  = new ServiceConnection() {
    @Override
    public void onServiceConnected(ComponentName className, IBinder service) {
      BossBinder binder;
      try {
        binder = (BossBinder) service;
      } catch (ClassCastException e) {
        throw new ClassCastException(service.toString()
            + " must be a BossBinder");
      }
      try {
        mService = (ServerBoss) binder.getService();
        mBound = true;
      } catch (ClassCastException e) {
        mBound = false;
        throw new ClassCastException(mService.toString()
            + " must be a ServerBoss");
      }
      
      mListener.serverBoss = mService;
      mService.setMainListener(mListener);
    }

    @Override
    public void onServiceDisconnected(ComponentName arg0) {
      mBound = false;
    }
  };
}

Java Source Code List

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