ViewPager的简单使用方法

主界面MainActivitypackage com.example.viewpager;

import java.util.ArrayList;

import com.example.viewpager.R;

import android.app.Activity;
import android.app.Fragment;
import android.app.FragmentManager;
import android.app.FragmentTransaction;
import android.os.Bundle;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.view.View;
import android.view.ViewGroup;
import android.widget.RadioButton;

public class MainActivity extends Activity {
ViewPager viewPager;
RadioButton first,news,services,home,setting;
ArrayList<View> views;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

first = (RadioButton) findViewById(R.id.first);
news = (RadioButton) findViewById(R.id.news);
services = (RadioButton) findViewById(R.id.service);
home = (RadioButton) findViewById(R.id.home);
setting = (RadioButton) findViewById(R.id.setting);
views = new ArrayList<View>();
View view1 = View.inflate(this, R.layout.first_layout, null);
View view2 = View.inflate(this, R.layout.first_layout, null);
View view3 = View.inflate(this, R.layout.first_layout, null);
View view4 = View.inflate(this, R.layout.first_layout, null);
View view5 = View.inflate(this, R.layout.first_layout, null);
views.add(view1);
views.add(view2);
views.add(view3);
views.add(view4);
views.add(view5);

viewPager = (ViewPager) findViewById(R.id.viewpager);
viewPager.setAdapter(new ViewPagerAdapter());

}
private class ViewPagerAdapter extends PagerAdapter{

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

@Override
public boolean isViewFromObject(View arg0, Object arg1) {
// TODO Auto-generated method stub
return arg0==arg1;
}

@Override
public Object instantiateItem(ViewGroup container, int position) {
// TODO Auto-generated method stub
View view = views.get(position);
container.addView(view);
return view;
}

@Override
public void destroyItem(ViewGroup container, int position, Object object) {
// TODO Auto-generated method stub
container.removeView((View)object);
}

}

}

对应布局activity_main.xml<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:background="@android:color/white"
android:orientation="vertical" >

<android.support.v4.view.ViewPager
android:layout_width="match_parent"
android:layout_height="0dp"
android:id="@+id/viewpager"
android:layout_weight="1" />

<RadioGroup
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:gravity="center" >

<RadioButton
style="@style/textstyle"
android:id="@+id/first"
android:text="首页"
/>
<RadioButton
style="@style/textstyle"
android:id="@+id/news"
android:text="新闻"
/>
<RadioButton
style="@style/textstyle"
android:id="@+id/service"
android:text="服务"
/>
<RadioButton
style="@style/textstyle"
android:id="@+id/home"
android:text="家政"
/>
<RadioButton
style="@style/textstyle"
android:id="@+id/setting"
android:text="设置"
/>
</RadioGroup>

</LinearLayout>
样式

<style name="textstyle" >
<item name="android:layout_weight">1</item>
<item name="android:layout_width">wrap_content</item>
<item name="android:layout_height">match_parent</item>
<item name="android:button">@null</item>
<item name="android:padding">5dp</item>
<item name="android:textSize">18dp</item>
<item name="android:textColor">#000</item>
<item name="android:gravity">center</item>
</style>

first_layout.xml只写了一个textView<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:gravity="center">

<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="首页"
android:textColor="#0f0"
android:textSize="28dp" />

</LinearLayout>