ViewPager的使用

ViewPager的使用

效果图

布局

<android.support.v4.view.ViewPager
android:id="@+id/viewpager"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:overScrollMode="never"
android:scrollbars="none" />

初始化及事件监听

// ViewPager
ViewPager mViewPager = (ViewPager) view.findViewById(R.id.viewpager);
// 添加页面变动的监听事件
viewPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {
@Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {

}

@Override
public void onPageSelected(int position) {
switch (position) {
case 0:
// TODO 显示了第一页
break;
case 1:
// TODO 显示了第二页
break;
}
}

@Override
public void onPageScrollStateChanged(int state) {

}
});

viewPager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
@Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {

}

@Override
public void onPageSelected(int position) {

}

@Override
public void onPageScrollStateChanged(int state) {

}
});

填充ViewPager

// 添加页面
ArrayList viewList = new ArrayList<View>();// 将要分页显示的View装入数组中
View viewpagerQuotationBtc = View.inflate(getActivity(), R.layout.viewpager1, null);
View viewpagerQuotationLtc = View.inflate(getActivity(), R.layout.viewpager2, null);
viewList.add(viewpagerQuotationBtc);
viewList.add(viewpagerQuotationLtc);
QuotationPageAdapter quotationDataAdapter = new QuotationPageAdapter(viewList);
viewPager.setAdapter(quotationDataAdapter);

Adapter

package ……;

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

import java.util.ArrayList;

/**
* Created by kongqw on 2015/11/25.
*/
public class QuotationPageAdapter extends PagerAdapter {
private ArrayList<View> mListViews;

public QuotationPageAdapter(ArrayList<View> mListViews) {
this.mListViews = mListViews;
}

@Override
public void destroyItem(ViewGroup container, int position, Object object) {
container.removeView(mListViews.get(position));
}

@Override
public Object instantiateItem(ViewGroup container, int position) {
container.addView(mListViews.get(position), 0);
return mListViews.get(position);
}

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

@Override
public boolean isViewFromObject(View view, Object object) {
return view == object;
}
}

设置ViewPager显示第几页

// 显示第一页
mViewPager.setCurrentItem(0);