2019獨角獸企業重金招聘Python工程師標準>>>

上圖： 上代碼：

<RelativeLayoutandroid:layout_width="match_parent"android:layout_height="wrap_content"android:background="@color/white"<!-- 下面這個屬性一定要，意思子控件不局限于自身空間 -->android:clipChildren="false"><android.support.v4.view.ViewPagerandroid:id="@+id/viewpager"android:layout_width="match_parent"android:layout_height="119dp"<!-- marginleft決定左邊顯示的小的寬度，marginright意思一樣 -->android:layout_marginLeft="38dp"android:layout_marginRight="38dp"/></RelativeLayout>

Activity.java

viewpager.setOffscreenPageLimit(3); viewpager.setAdapter(adapter); viewpager.setPageTransformer(true, new ViewPager.PageTransformer() {@Overridepublic void transformPage(View page, float position){//最重要的就是這里了float v = Math.abs(position);float v1 = (float) (0.2 * (v * v));page.setScaleY(1 - v1);} });

PagerAdapter.java

import android.support.v4.view.PagerAdapter; import android.support.v4.view.ViewPager; import android.view.View;import java.util.List;/*** Created by xiaolei on 2017/4/5.*/public class HomeBannerAdapter extends PagerAdapter {private List<View> viewLists;public HomeBannerAdapter(List<View> viewLists){this.viewLists = viewLists;}@Overridepublic int getCount(){ //獲得size return viewLists.size();}@Overridepublic boolean isViewFromObject(View view, Object object){return view == object;}@Overridepublic void destroyItem(View view, int position, Object object) //銷毀Item {((ViewPager) view).removeView(viewLists.get(position));}@Overridepublic Object instantiateItem(View view, int position) //實例化Item {((ViewPager) view).addView(viewLists.get(position), 0);return viewLists.get(position);} }

轉載于:https://my.oschina.net/xiaolei123/blog/873561

總結

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