Android实现轮播图效果

Z时代
2024-01-10
分类：IT

本文实例为大家分享了Android实现轮播图效果的具体代码，供大家参考，具体内容如下

1.代码放在LinearLayout中，


<com.jude.rollviewpager.RollPagerView
        android:id="@+id/roll_view_pager"
        android:layout_width="match_parent"
        android:layout_height="180dp"
        android:layout_marginTop="56dp"
         />

2.build.gradle中添加依赖

//轮播图

implementation 'com.jude:rollviewpager:1.2.9'

3.Java class里面添加代码：


public class RecommendFragment extends Fragment {
    private RollPagerView mRollPagerView;
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        View view=inflater.inflate(R.layout.fragment_recommend,container,false);
        mRollPagerView= view.findViewById(R.id.roll_view_pager);
        //设置播放时间间隔
        mRollPagerView.setPlayDelay(3000);
        //设置透明度
        mRollPagerView.setAnimationDurtion(500);
        //设置适配器
        mRollPagerView.setAdapter(new TestNormalAdapter());
        //设置圆点指示器颜色
        mRollPagerView.setHintView(new ColorPointHintView(getContext(), Color.YELLOW, Color.WHITE));
        return view;
    }
    //自定义适配器
    private class TestNormalAdapter extends StaticPagerAdapter {
        //轮播所需照片
        private int[] imgs={
                R.drawable.lb1,//三张轮播图片
                R.drawable.lb1,
                R.drawable.lb3,
        };
        @Override
        public View getView(ViewGroup container, int position) {
            ImageView view=new ImageView(container.getContext());
            view.setImageResource(imgs[position]);
            view.setScaleType(ImageView.ScaleType.CENTER_CROP);
            view.setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,ViewGroup.LayoutParams.MATCH_PARENT));
            return view;
        }
        @Override
        public int getCount() {
            return imgs.length;
        }
    };