Viewpager的用法

内页面  不单写页面   viewpager+布局
import java.util.ArrayList;
import java.util.List;

import android.os.Bundle;
import android.app.Activity;
import android.graphics.Color;
import android.support.v4.view.ViewPager;
import android.support.v4.view.ViewPager.OnPageChangeListener;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class MainActivity extends Activity implements OnClickListener {

    private List<View> list;
    private ViewPager viewpager;
    private Button button1;
    private Button button2;
    private Button button3;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        setData();
        button1 = (Button) findViewById(R.id.button1);
        button2 = (Button) findViewById(R.id.button2);
        button3 = (Button) findViewById(R.id.button3);
        button1 .setOnClickListener(this);
        button2.setOnClickListener(this);
        button3.setOnClickListener(this);
        
        viewpager = (ViewPager) findViewById(R.id.viewpager);
        viewpager.setAdapter(new MyPagerAdapter(list));
        viewpager.setCurrentItem(1);
        setButtonColor(viewpager.getCurrentItem());
        viewpager.setOnPageChangeListener(new OnPageChangeListener() {
            
            @Override
            public void onPageSelected(int position) {
                setButtonColor(position);
                
            }
            
            

            @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
                
            }
        });
    
    
    }

    private void setData() {
        list = new ArrayList<View>();
        View view1=View.inflate(MainActivity.this,R.layout.viewpager_1, null);
        View view2=View.inflate(MainActivity.this,R.layout.viewpager_2,null);
        View view3=View.inflate(MainActivity.this,R.layout.viewpager_3,null);
        list.add(view1);
        list.add(view2);
        list.add(view3);
    }
    private void setButtonColor(int position) {
        // TODO Auto-generated method stub
        switch(position){
        case 0:
            button1.setTextColor(Color.WHITE);
            
            button2.setTextColor(Color.BLACK);
            button3.setTextColor(Color.BLACK);
            break;
        case 1:
            button2.setTextColor(Color.WHITE);
            
            button1.setTextColor(Color.BLACK);
            button3.setTextColor(Color.BLACK);
            break;
        case 2:
            button3.setTextColor(Color.WHITE);
            
            button2.setTextColor(Color.BLACK);
            button1.setTextColor(Color.BLACK);
            break;
        }
    }
    @Override
    public void onClick(View v) {
    switch (v.getId()) {
    case R.id.button1:
        viewpager.setCurrentItem(0);
        
    
        break;
    case R.id.button2:
        viewpager.setCurrentItem(1);
        
    
        break;
    case R.id.button3:
        viewpager.setCurrentItem(2);
        
        
        break;
    
    }    
        
    }

   
    
}

import java.util.List;

import android.support.v4.view.PagerAdapter;
import android.view.View;
import android.view.ViewGroup;

public class MyPagerAdapter extends PagerAdapter{
    List<View> list;
    public MyPagerAdapter(List<View> list) {
        this.list=list;
    }

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

    @Override
    public boolean isViewFromObject(View view, Object object) {
        
        return view==object;
    }
   @Override
   public void destroyItem(ViewGroup container, int position, Object object) {
    container.removeView((View) object);
}
    @Override
    public Object instantiateItem(ViewGroup container, int position) {
        container.addView(list.get(position));
        return list.get(position);
    }
}

外页面   自定义页面   Viewpager+Fragment   (Fragment导V4包)

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.FragmentManager;
import android.support.v4.view.ViewPager;
import android.support.v4.view.ViewPager.OnPageChangeListener;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;

public class MainActivity extends FragmentActivity implements OnClickListener{

    private ViewPager viewPager;
    private Button button1;
    private Button button2;
    private Button button3;
    private List<Fragment> list;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
     viewPager = (ViewPager) findViewById(R.id.viewpager);
     
     button1 = (Button) findViewById(R.id.button1);
     button2 = (Button) findViewById(R.id.button2);
     button3 = (Button) findViewById(R.id.button3);
     
     button1.setOnClickListener(this);
     button2.setOnClickListener(this);
     button3.setOnClickListener(this);
     setCon();
     FragmentManager fm = getSupportFragmentManager();
     viewPager.setAdapter(new MyFragmentpagerAdapter(fm, list));  
     viewPager.setOnPageChangeListener(new OnPageChangeListener() {
        
        @Override
        public void onPageSelected(int arg0) {
            // TODO Auto-generated method stub
            Toast.makeText(MainActivity.this, "当前页面是：页卡"+(arg0+1), 0).show();
        }
        
        @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
            
        }
    });
    }

    private void setCon() {
        list = new ArrayList<Fragment>();
        Fragment1 f1=new Fragment1();
        Fragment2 f2=new Fragment2();
        Fragment3 f3=new Fragment3();
        list.add(f1);
        list.add(f2);
        list.add(f3);
    }

    @Override
    public void onClick(View v) {
        switch (v.getId()) {
        case R.id.button1:
            viewPager.setCurrentItem(0);
            break;
        case R.id.button2:
            viewPager.setCurrentItem(1);
            break;
        case R.id.button3:
            viewPager.setCurrentItem(2);
            break;
        
        }
        
    }

    
}

import java.util.List;

import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.PagerAdapter;
import android.view.View;

public class MyFragmentpagerAdapter extends FragmentPagerAdapter {
     List<Fragment> list;
    public MyFragmentpagerAdapter(FragmentManager fm, List<Fragment> list) {
        super(fm);
        this.list=list;
    }

    @Override
    public Fragment getItem(int arg0) {
        // TODO Auto-generated method stub
        return list.get(arg0);
    }

    @Override
    public int getCount() {
        // TODO Auto-generated method stub
        return list.size();
    }

    

}

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;


public class Fragment1 extends Fragment{
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {
    // TODO Auto-generated method stub
    View view=inflater.inflate(R.layout.fragment1, null);
    return view;
}
}