Android Open Source - trivial-lists Item Pager Activity

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License

The source code is released under:

MIT License

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Java Source Code

package org.hbabcock.triviallists;
//from  w  ww .j  av  a 2s  . co m
import java.util.UUID;

import android.app.ActionBar;
import android.app.ActionBar.Tab;
import android.os.Bundle;
import android.preference.PreferenceManager;
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.util.Log;

public class ItemPagerActivity extends FragmentActivity implements ActionBar.TabListener {
  private static final String TAG = "ItemPagerActivity";
  private static final String CURRENT_ITEM = "CURRENT_ITEM";

  private ActionBar mActionBar;
  private Category mCategory;
  private ViewPager mViewPager;

  @Override
  public void onCreate(Bundle savedInstanceState){
    super.onCreate(savedInstanceState);
    setContentView(R.layout.item_pager_activity);

    mActionBar = getActionBar();
    mCategory = CategoryItemManager.get(this).getCategory((UUID)getIntent().getSerializableExtra(ItemFragment.EXTRA_CATEGORY_ID));
    FragmentManager fm = getSupportFragmentManager();
    mViewPager = (ViewPager)findViewById(R.id.pager);

    mActionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
    mActionBar.addTab(mActionBar.newTab().setText(R.string.edit).setTabListener(this));
    mActionBar.addTab(mActionBar.newTab().setText(R.string.shop).setTabListener(this));
    
    mViewPager.setAdapter(new FragmentPagerAdapter (fm){
      @Override
      public int getCount(){
        return 2;
      }
      
      @Override
      public Fragment getItem(int pos){
        if (pos == 0){
          return ItemFragmentEdit.newInstance(mCategory.getId());
        }
        else{
          return ItemFragmentShop.newInstance(mCategory.getId());
        }
      }
    });
    
    mViewPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener(){
      public void onPageScrollStateChanged(int state){}
      
      public void onPageScrolled(int pos, float posOffset, int posOffsetPixels){}
      
      public void onPageSelected(int pos){
        mActionBar.setSelectedNavigationItem(pos);
      }
    });    
  }
  
  @Override
  public void onPause(){
    super.onPause();
    Log.i(TAG,"onPause");
    CategoryItemManager.get(this).save();
    
    PreferenceManager.getDefaultSharedPreferences(this)
      .edit()
      .putInt(CURRENT_ITEM, mViewPager.getCurrentItem())
      .commit();
  }

  @Override
  public void onResume(){
    super.onResume();
    Log.i(TAG,"onResume");
    
    mViewPager.setCurrentItem(PreferenceManager.getDefaultSharedPreferences(this).getInt(CURRENT_ITEM, 0));
  }

  @Override
  public void onTabReselected(Tab tab, android.app.FragmentTransaction ft) {
  }

  @Override
  public void onTabSelected(Tab tab, android.app.FragmentTransaction ft) {
    mViewPager.setCurrentItem(tab.getPosition());
  }

  @Override
  public void onTabUnselected(Tab tab, android.app.FragmentTransaction ft) {
  }

}

Java Source Code List