banner 轮播图第三方_第三方依赖实现banner轮播图-优快云博客

本文详细介绍了如何使用com.youth.banner库在Android应用中实现轮播图功能，包括依赖导入、布局设置及核心代码实现，展示了如何加载网络图片并设置轮播效果。

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导入依赖
com.youth.banner:banner:1.4.9
布局

**布局代码**
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:background="#F89"
    >

    <com.youth.banner.Banner
        android:id="@+id/banner1"
        android:layout_width="0dp"
        android:layout_height="400dp"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintBottom_toBottomOf="parent"
        android:orientation="vertical"
        android:background="#f00"
        ></com.youth.banner.Banner>

 
</android.support.constraint.ConstraintLayout>

核心代码

在这里插入代码片
package bw.com.bawei.bawei.zonghelainxi.fragment;

import android.content.Context;
import android.view.View;
import android.widget.ImageView;

import com.nostra13.universalimageloader.core.ImageLoader;
import com.youth.banner.Banner;

import java.util.Arrays;

import bw.com.bawei.bawei.zonghelainxi.R;
import bw.com.bawei.bawei.zonghelainxi.base.BaseFragent;

public class Fragentthree extends BaseFragent {

    String[] apiUrls={
            "http://172.17.8.100/images/movie/stills/ftfb3/ftfb(3)1.jpg",
            "http://172.17.8.100/images/movie/stills/hjxd/hjxd1.jpg",
            "http://172.17.8.100/images/movie/stills/jhen/jhen1.jpg",
            "http://172.17.8.100/images/movie/stills/ws/ws1.jpg",
            "http://172.17.8.100/images/movie/stills/zdn/zdn1.jpg",
            "http://172.17.8.100/images/movie/stills/sqmxtzdwbg/sqmxtzdwbg1.jpg",
            "http://172.17.8.100/images/movie/stills/wxwd/wxwd1.jpg"
    };
    private Banner banner;
    private ImageLoader instance;

    @Override
    public void initView(View view) {
        banner = view.findViewById(R.id.banner1);
        instance = ImageLoader.getInstance();

        banner.setImageLoader(new com.youth.banner.loader.ImageLoader() {
            @Override
            public void displayImage(Context context, Object path, ImageView imageView) {
                instance.displayImage((String) path,imageView);
            }
        });

        banner.setImages(Arrays.asList(apiUrls));
        banner.start();
    }

    @Override
    public void initData() {

    }

    @Override
    public int getLayoutID() {
        return R.layout.fragentthree;
    }
}