<RelativeLayout 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" tools:context="com.example.testviewpage_2.MainActivity" > <android.support.v4.view.ViewPager android:id="@+id/viewpager" android:layout_width="wrap_content" android:layout_height="200dip" android:layout_gravity="center"> <android.support.v4.view.PagerTitleStrip android:id="@+id/pagertitle" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="top" /> </android.support.v4.view.ViewPager> </RelativeLayout>
package com.example.testviewpage_2;
import java.util.ArrayList;
import java.util.List;
import android.app.Activity;
import android.os.Bundle;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.PagerTitleStrip;
import android.support.v4.view.ViewPager;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
public class MainActivity extends Activity {
private View view1, view2, view3;
private List<View> viewList;// view数组
private ViewPager viewPager; // 对应的viewPager
private List<String> titleList; //标题列表数组
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
viewPager = (ViewPager) findViewById(R.id.viewpager);
LayoutInflater inflater = getLayoutInflater();
view1 = inflater.inflate(R.layout.layout1, null);
view2 = inflater.inflate(R.layout.layout2, null);
view3 = inflater.inflate(R.layout.layout3, null);
viewList = new ArrayList<View>();// 将要分页显示的View装入数组中
viewList.add(view1);
viewList.add(view2);
viewList.add(view3);
titleList = new ArrayList<String>();// 每个页面的Title数据
titleList.add("王鹏");
titleList.add("姜语");
titleList.add("结婚");
PagerAdapter pagerAdapter = new PagerAdapter() {
@Override
public boolean isViewFromObject(View arg0, Object arg1) {
// TODO Auto-generated method stub
//根据传来的key,找到view,判断与传来的参数View arg0是不是同一个视图
return arg0 == viewList.get((int)Integer.parseInt(arg1.toString()));
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return viewList.size();
}
@Override
public void destroyItem(ViewGroup container, int position,
Object object) {
// TODO Auto-generated method stub
container.removeView(viewList.get(position));
}
@Override
public Object instantiateItem(ViewGroup container, int position) {
// TODO Auto-generated method stub
container.addView(viewList.get(position));
//把当前新增视图的位置(position)作为Key传过去
return position;
}
@Override
public CharSequence getPageTitle(int position) {
// TODO Auto-generated method stub
return titleList.get(position);
}
};
viewPager.setAdapter(pagerAdapter);
}
}
private List<String> titleList; //标题列表数组
titleList = new ArrayList<String>();// 每个页面的Title数据
titleList.add("王鹏");
titleList.add("姜语");
titleList.add("结婚");
@Override
public CharSequence getPageTitle(int position) {
// TODO Auto-generated method stub
return titleList.get(position);
}
@Override
public CharSequence getPageTitle(int position) {
// TODO Auto-generated method stub
switch (position) {
case 0:
return "王鹏";
case 1:
return "姜语";
case 2:
return "结婚";
default:
return "";
}
}
<android.support.v4.view.ViewPager xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/pager" android:layout_width="match_parent" android:layout_height="match_parent"> <android.support.v4.view.PagerTitleStrip android:id="@+id/pager_title_strip" android:layout_width="match_parent" android:layout_height="30dp" android:layout_gravity="bottom" android:paddingTop="4dp" android:paddingBottom="4dp" /> </android.support.v4.view.ViewPager>
@Override
protected void onAttachedToWindow() {
super.onAttachedToWindow();
final ViewParent parent = getParent();
if (!(parent instanceof ViewPager)) {
throw new IllegalStateException(
"PagerTitleStrip must be a direct child of a ViewPager.");
}
final ViewPager pager = (ViewPager) parent;
final PagerAdapter adapter = pager.getAdapter();
pager.setInternalPageChangeListener(mPageListener);
pager.setOnAdapterChangeListener(mPageListener);
mPager = pager;
updateAdapter(mWatchingAdapter != null ? mWatchingAdapter.get() : null, adapter);
}
@Override
public CharSequence getPageTitle(int position) {
switch (position) {
case 0:
return getString(R.string.title_list);
case 1:
return getString(R.string.title_grid);
default:
return null;
}
}
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