实例讲解Android中ViewPager组件的一些进阶使用技巧

3.创建一个ViewPager适配器类：

package com.yayun.viewpagerdemo; 
 
import java.util.ArrayList; 
import java.util.List; 
 
import android.support.v4.view.PagerAdapter; 
import android.view.View; 
import android.view.ViewGroup; 
 
public class ViewPagerAdapter extends PagerAdapter { 
  private List<View> lViews=new ArrayList<View>(); 
   
  public ViewPagerAdapter(List<View> lViews){ 
    this.lViews=lViews; 
  } 
 
  @Override 
  public int getCount() { 
    return lViews.size(); 
  } 
 
  @Override 
  public boolean isViewFromObject(View arg0, Object arg1) { 
    return arg0==arg1; 
  } 
  @Override 
  public Object instantiateItem(ViewGroup container, int position) { 
    container.addView(lViews.get(position)); 
    return lViews.get(position); 
  } 
  @Override 
  public void destroyItem(ViewGroup container, int position, Object object) { 
    container.removeView(lViews.get(position)); 
  } 
 
} 

4.MainActivity.java:

package com.yayun.viewpagerdemo; 
 
import java.util.ArrayList; 
import java.util.List; 
 
import android.support.v7.app.ActionBarActivity; 
import android.support.v7.app.ActionBar; 
import android.support.v4.app.Fragment; 
import android.support.v4.view.PagerAdapter; 
import android.support.v4.view.ViewPager; 
import android.os.Bundle; 
import android.view.LayoutInflater; 
import android.view.Menu; 
import android.view.MenuItem; 
import android.view.View; 
import android.view.ViewGroup; 
import android.view.Window; 
import android.os.Build; 
 
public class MainActivity extends ActionBarActivity { 
  private ViewPager viewPager; 
  private List<View> listViews=null; 
  ViewPagerAdapter pagerAdapter; 
 
  @Override 
  protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    requestWindowFeature(Window.FEATURE_NO_TITLE); 
    setContentView(R.layout.activity_main); 
     
    viewPager=(ViewPager) findViewById(R.id.pager); 
    listViews=new ArrayList<View>(); 
    /** 
     * 为Adapter创建数据源 
     */ 
    View view1=View.inflate(this, R.layout.view1, null); 
    View view2=View.inflate(this, R.layout.view2, null); 
    View view3=View.inflate(this, R.layout.view3, null); 
    listViews.add(view1); 
    listViews.add(view2); 
    listViews.add(view3); 
    pagerAdapter=new ViewPagerAdapter(listViews) ; 
    viewPager.setAdapter(pagerAdapter); 
 
  } 
 
} 

								 
 3/8   首页 上一页 1 2 3 4 5 6 下一页 尾页