1 package com.example.android_tab3;  2   3 import java.util.ArrayList;  4 import java.util.List;  5   6 import com.example.Fragment.AddressFragment;  7 import com.example.Fragment.FriendFragment;  8 import com.example.Fragment.SettingFragment;  9 import com.example.Fragment.WeixinFragment; 10  11 import android.os.Bundle; 12 import android.support.v4.app.Fragment; 13 import android.support.v4.app.FragmentActivity; 14 import android.support.v4.app.FragmentPagerAdapter; 15 import android.support.v4.view.ViewPager; 16 import android.support.v4.view.ViewPager.OnPageChangeListener; 17 import android.util.Log; 18 import android.view.View; 19 import android.view.View.OnClickListener; 20 import android.view.Window; 21 import android.widget.ImageButton; 22 import android.widget.LinearLayout; 23  24 public class MainActivity extends FragmentActivity implements OnClickListener{ 25     private ViewPager viewpager = null; 26     private List<Fragment> list = null; 27     private FragmentPagerAdapter adapter = null; 28     private ImageButton imagebutton_weixin = null; 29     private ImageButton imagebutton_friend = null; 30     private ImageButton imagebutton_address = null; 31     private ImageButton imagebutton_setting = null; 32      33     private LinearLayout linear_weixin = null; 34     private LinearLayout linear_friend = null; 35     private LinearLayout linear_address = null; 36     private LinearLayout linear_setting = null; 37     protected void onCreate(Bundle savedInstanceState) { 38         super.onCreate(savedInstanceState); 39         requestWindowFeature(Window.FEATURE_NO_TITLE); 40         setContentView(R.layout.activity_main); 41         initview(); 42         initEvents(); 43     } 44  45     private void initview() 46     { 47         viewpager = (ViewPager) findViewById(R.id.viewpager); 48          49         imagebutton_weixin = (ImageButton) findViewById(R.id.imagebutton_weixin); 50         imagebutton_friend = (ImageButton) findViewById(R.id.imagebutton_friend); 51         imagebutton_address = (ImageButton) findViewById(R.id.imagebutton_address); 52         imagebutton_setting = (ImageButton) findViewById(R.id.imagebutton_setting); 53          54         linear_weixin = (LinearLayout) findViewById(R.id.linear_weixin); 55         linear_friend = (LinearLayout) findViewById(R.id.linear_friend); 56         linear_address = (LinearLayout) findViewById(R.id.linear_address); 57         linear_setting = (LinearLayout) findViewById(R.id.linear_setting); 58         list = new ArrayList<Fragment>(); 59         Fragment weixinFragment = new WeixinFragment(); 60         Fragment friendFragment = new FriendFragment(); 61         Fragment addressFragment = new AddressFragment(); 62         Fragment settingFragment = new SettingFragment();  63         list.add(weixinFragment); 64         list.add(friendFragment); 65         list.add(addressFragment); 66         list.add(settingFragment); 67         adapter = new FragmentPagerAdapter(getSupportFragmentManager()) { 68  69             public int getCount() { 70      71                 return list.size(); 72             } 73  74             public Fragment getItem(int position) { 75  76                 return list.get(position); 77             } 78         }; 79         viewpager.setAdapter(adapter); 80         viewpager.setOnPageChangeListener(new OnPageChangeListener() { 81              82             @Override 83             public void onPageSelected(int position) { 84                 viewpager.setCurrentItem(position); 85                 resetimage(); 86                 if(position == 0) 87                 { 88                     imagebutton_weixin.setImageResource(R.drawable.tab_weixin_pressed); 89                 } 90                 else if(position == 1) 91                 { 92                     imagebutton_friend.setImageResource(R.drawable.tab_find_frd_pressed); 93                 } 94                 else if(position == 2) 95                 { 96                     imagebutton_address.setImageResource(R.drawable.tab_address_pressed); 97                 } 98                 else if (position == 3)  99                 {100                     imagebutton_setting.setImageResource(R.drawable.tab_settings_pressed);101                 }102             }103             104             @Override105             public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {106                 // TODO Auto-generated method stub107                 108             }109             110             @Override111             public void onPageScrollStateChanged(int state) {112                 // TODO Auto-generated method stub113                 114             }115         });116     }117     private void initEvents() {118         linear_weixin.setOnClickListener(this);119         Log.i("main", "2");120         linear_friend.setOnClickListener(this);121         linear_address.setOnClickListener(this);122         linear_setting.setOnClickListener(this);123     }124     public void onClick(View v) {125         resetimage();126         switch(v.getId())127         {128             case R.id.linear_weixin:129             {130                 viewpager.setCurrentItem(0);131                 imagebutton_weixin.setImageResource(R.drawable.tab_weixin_pressed);132                 break;133             }134             case R.id.linear_friend:135             {136                 viewpager.setCurrentItem(1);137                 imagebutton_friend.setImageResource(R.drawable.tab_find_frd_pressed);138                 break;139             }140             case R.id.linear_address:141             {142                 viewpager.setCurrentItem(2);143                 imagebutton_address.setImageResource(R.drawable.tab_address_pressed);144                 break;145             }146             case R.id.linear_setting:147             {148                 viewpager.setCurrentItem(3);149                 imagebutton_setting.setImageResource(R.drawable.tab_settings_pressed);150                 break;151             }152         }153     }154     private void resetimage()155     {156         imagebutton_weixin.setImageResource(R.drawable.tab_weixin_normal);157         imagebutton_friend.setImageResource(R.drawable.tab_find_frd_normal);158         imagebutton_address.setImageResource(R.drawable.tab_address_normal);159         imagebutton_setting.setImageResource(R.drawable.tab_settings_normal);160     }161 }