Android 利用ViewPager实现图片可以左右循环滑动效果附源代码下载

tips[i].setBackgroundResource(R.drawable.page_indicator_unfocused); }

LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(new ViewGroup.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));

layoutParams.leftMargin = 5; layoutParams.rightMargin = 5;

group.addView(imageView, layoutParams); }

//将图片装载到数组中 mImageViews = new ImageView[imgIdArray.length];

for(int i=0; i<mImageViews.length; i++){ ImageView imageView = new ImageView(this);

mImageViews[i] = imageView; imageView.setBackgroundResource(imgIdArray[i]);

} //设置Adapter

viewPager.setAdapter(new MyAdapter()); //设置监听，主要是设置点点的背景

viewPager.setOnPageChangeListener(this); //设置ViewPager的默认项, 设置为长度的100倍，这样子开始就能往左滑动

viewPager.setCurrentItem((mImageViews.length) * 100); }

/** *

* @author xiaanming *

*/ public class MyAdapter extends PagerAdapter{

@Override public int getCount() {

return Integer.MAX_VALUE; }

@Override public boolean isViewFromObject(View arg0, Object arg1) {

return arg0 == arg1; }

@Override public void destroyItem(View container, int position, Object object) {

((ViewPager)container).removeView(mImageViews[position % mImageViews.length]); }

/** * 载入图片进去，用当前的position 除以图片数组长度取余数是关键

*/ @Override

public Object instantiateItem(View container, int position) { ((ViewPager)container).addView(mImageViews[position % mImageViews.length], 0);

return mImageViews[position % mImageViews.length]; }

3/5 首页上一页 1 2 3 4 5 下一页尾页

Android 利用ViewPager实现图片可以左右循环滑动效果附源代码下载

一文详解Jetpack Android新一代导航管理Navigation

横竖屏切换导致页面频繁重启screenLayout解析

Andriod事件分发事件由来初识

Android 匿名内存深入分析

5分钟学会Android设计模式之策略模式Strategy Pattern

解决Android Studio 出现“Cannot resolve symbol”

Flutter学习之创建一个内嵌的navigation详解

Android Flutter实现在多端运行的扫雷游戏

Android Jetpack组件Lifecycle源码解析

React Native之在Android上添加阴影的实现