ViewPager+Fragmentで左右のスライドをサポートするTabを実現

主な考え:トップタイトルバーtop.xml、中間ViewPager(4つのFragment)、下部ナビゲーション
top.xmlとbottom.xmlは私の前の2つのエッセイにありますが、ここでは詳しく説明しません.
activity_main.xmlの具体的な実装:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

xmlns:tools="http://schemas.android.com/tools"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:orientation="vertical" >



<include layout="@layout/top" />



<android.support.v4.view.ViewPager

android:id="@+id/id_viewpager"

android:layout_width="fill_parent"

android:layout_height="0dp"

android:layout_weight="1" >

</android.support.v4.view.ViewPager>



<include layout="@layout/bottom" />



</LinearLayout>

 
違うのはMainActivity.JAvaファイルの実装.
MainActivity.JAvaの具体的な実装:

package com.imooc.tab03;



import java.util.ArrayList;

import java.util.List;



import android.os.Bundle;

import android.support.v4.app.Fragment;

import android.support.v4.app.FragmentActivity;

import android.support.v4.app.FragmentPagerAdapter;

import android.support.v4.view.ViewPager;

import android.support.v4.view.ViewPager.OnPageChangeListener;

import android.view.View;

import android.view.View.OnClickListener;

import android.view.Window;

import android.widget.ImageButton;

import android.widget.LinearLayout;



public class MainActivity extends FragmentActivity implements OnClickListener

{

private ViewPager mViewPager;

private FragmentPagerAdapter mAdapter;

private List<Fragment> mFragments;



private LinearLayout mTabWeixin;

private LinearLayout mTabFrd;

private LinearLayout mTabAddress;

private LinearLayout mTabSettings;



private ImageButton mImgWeixin;

private ImageButton mImgFrd;

private ImageButton mImgAddress;

private ImageButton mImgSettings;



@Override

protected void onCreate(Bundle savedInstanceState)

{

super.onCreate(savedInstanceState);

requestWindowFeature(Window.FEATURE_NO_TITLE);

setContentView(R.layout.activity_main);



initView();

initEvent();



setSelect(1);

}



private void initEvent()

{

mTabWeixin.setOnClickListener(this);

mTabFrd.setOnClickListener(this);

mTabAddress.setOnClickListener(this);

mTabSettings.setOnClickListener(this);

}



private void initView()

{

mViewPager = (ViewPager) findViewById(R.id.id_viewpager);



mTabWeixin = (LinearLayout) findViewById(R.id.id_tab_weixin);

mTabFrd = (LinearLayout) findViewById(R.id.id_tab_frd);

mTabAddress = (LinearLayout) findViewById(R.id.id_tab_address);

mTabSettings = (LinearLayout) findViewById(R.id.id_tab_settings);



mImgWeixin = (ImageButton) findViewById(R.id.id_tab_weixin_img);

mImgFrd = (ImageButton) findViewById(R.id.id_tab_frd_img);

mImgAddress = (ImageButton) findViewById(R.id.id_tab_address_img);

mImgSettings = (ImageButton) findViewById(R.id.id_tab_settings_img);



mFragments = new ArrayList<Fragment>();

Fragment mTab01 = new WeixinFragment();

Fragment mTab02 = new FrdFragment();

Fragment mTab03 = new AddressFragment();

Fragment mTab04 = new SettingFragment();

mFragments.add(mTab01);

mFragments.add(mTab02);

mFragments.add(mTab03);

mFragments.add(mTab04);



mAdapter = new FragmentPagerAdapter(getSupportFragmentManager())

{



@Override

public int getCount()

{

return mFragments.size();

}



@Override

public Fragment getItem(int arg0)

{

return mFragments.get(arg0);

}

};

mViewPager.setAdapter(mAdapter);



mViewPager.setOnPageChangeListener(new OnPageChangeListener()

{



@Override

public void onPageSelected(int arg0)

{

int currentItem = mViewPager.getCurrentItem();

setTab(currentItem);

}



@Override

public void onPageScrolled(int arg0, float arg1, int arg2)

{

// TODO Auto-generated method stub



}



@Override

public void onPageScrollStateChanged(int arg0)

{

// TODO Auto-generated method stub



}

});

}



@Override

public void onClick(View v)

{

switch (v.getId())

{

case R.id.id_tab_weixin:

setSelect(0);

break;

case R.id.id_tab_frd:

setSelect(1);

break;

case R.id.id_tab_address:

setSelect(2);

break;

case R.id.id_tab_settings:

setSelect(3);

break;



default:

break;

}

}



private void setSelect(int i)

{

setTab(i);

mViewPager.setCurrentItem(i);

}



private void setTab(int i)

{

resetImgs();

//        

//       

switch (i)

{

case 0:

mImgWeixin.setImageResource(R.drawable.tab_weixin_pressed);

break;

case 1:

mImgFrd.setImageResource(R.drawable.tab_find_frd_pressed);

break;

case 2:

mImgAddress.setImageResource(R.drawable.tab_address_pressed);

break;

case 3:

mImgSettings.setImageResource(R.drawable.tab_settings_pressed);

break;

}

}



/**

*        

*/

private void resetImgs()

{

mImgWeixin.setImageResource(R.drawable.tab_weixin_normal);

mImgFrd.setImageResource(R.drawable.tab_find_frd_normal);

mImgAddress.setImageResource(R.drawable.tab_address_normal);

mImgSettings.setImageResource(R.drawable.tab_settings_normal);

}



}