Banner实现轮播

来源：互联网发布：淘宝优惠券手机端链接编辑：程序博客网时间：2024/05/20 04:10

1.第一步，添加依赖：

compile 'com.youth.banner:banner:1.4.9'

compile 'com.github.bumptech.glide:glide:4.0.0-RC0'

2.添加权限：

<uses-permission android:name="android.permission.INTERNET" /><uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

3.关于Banner在布局中引用：

<com.youth.banner.Banner    android:layout_width="match_parent"    android:layout_height="180dp"    android:id="@+id/banner"    ></com.youth.banner.Banner>

4.关于Banner的一些设置和主要代码：

private List<String> strList = new ArrayList<>();

private String[] images = {        "http://l2.51fanli.net//tuan//images//1//5806eac956808.jpg",        "http://l2.51fanli.net//tuan//images//b//580991bb30560.jpg",        "http://l0.51fanli.net//tuan//images//b//58115f2593dc3.jpg",        "http://l2.51fanli.net//tuan//images//0//57923840b054d.jpg",        "http://l2.51fanli.net//tuan//images//e//58101e11ab164.jpg"};

for (String s:images) {    strList.add(s);}

//需要继承imageLoader来操作图片的加载class BannerGilde extends ImageLoader {    @Override    public void displayImage(Context context, Object path, ImageView imageView) {        Glide.with(getContext()).load(path).into(imageView);    }}

private void getDataFromServer() {    String url1 = "http://api.kkmh.com/v1/topic_new/discovery_list?gender=0&sa_event=eyJwcm9qZWN0Ijoia3VhaWthbl9hcHAiLCJ0aW1lIjoxNDg3ODM5MDM5MzE1LCJwcm9wZXJ0aWVzIjp7IkhvbWVwYWdlVGFiTmFtZSI6IueDremXqCIsIlZDb21tdW5pdHlUYWJOYW1lIjoi54Ot6ZeoIiwiJG9zX3ZlcnNpb24iOiI0LjIuMiIsIkdlbmRlclR5cGUiOiLlpbPniYgiLCJGcm9tRmluZENhdGVnb3J5VGFiTmFtZSI6IuWFqOmDqCIsIklzQXV0b0xvYWQiOmZhbHNlLCIkbGliX3ZlcnNpb24iOiIxLjYuMzQiLCIkbmV0d29ya190eXBlIjoiV0lGSSIsIiR3aWZpIjp0cnVlLCIkbWFudWZhY3R1cmVyIjoic2Ftc3VuZyIsIkZyb21GaW5kVGFiTmFtZSI6IuaOqOiNkCIsIiRzY3JlZW5faGVpZ2h0Ijo1NzYsIkNhdGVnb3J5Ijoi5peg5rOV6I635Y-WIiwiSG9tZXBhZ2VVcGRhdGVEYXRlIjowLCJQcm9wZXJ0eUV2ZW50IjoiUmVhZEZpbmRQYWdlIiwiRmluZFRhYk5hbWUiOiLmjqjojZAiLCJhYnRlc3RfZ3JvdXAiOjQ2LCIkc2NyZWVuX3dpZHRoIjoxMDI0LCJGaW5kQ2F0ZWdvcnlUYWJOYW1lIjoi5YWo6YOoIiwiJG9zIjoiQW5kcm9pZCIsIlRyaWdnZXJQYWdlIjoiSG9tZVBhZ2UiLCIkY2FycmllciI6IkNNQ0MiLCIkbW9kZWwiOiJHVC1QNTIxMCIsIiRhcHBfdmVyc2lvbiI6IjMuOC4xIn0sInR5cGUiOiJ0cmFjayIsImRpc3RpbmN0X2lkIjoiQTo5MDUxMDQyNzYzNzU1MTA5Iiwib3JpZ2luYWxfaWQiOiJBOjkwNTEwNDI3NjM3NTUxMDkiLCJldmVudCI6IlJlYWRGaW5kUGFnZSJ9";    RequestParams params1 = new RequestParams();    params1.setUri(url1);    x.http().get(params1, new Callback.CommonCallback<String>() {        @Override        public void onSuccess(final String result) {            if (result != null) {                                Gson gson = new Gson();                BannerBean bannerBean = gson.fromJson(result, BannerBean.class);                List<BannerBean.DataBean.InfosBean> infos = bannerBean.getData().getInfos();                           for (BannerBean.DataBean.InfosBean bb : infos) {                    List<BannerBean.DataBean.InfosBean.BannersBean> banners = bb.getBanners();                    for (BannerBean.DataBean.InfosBean.BannersBean nn : banners) {                        String pic = nn.getPic();                        strList.add(pic);                    }                }                banner.setImageLoader(new BannerGilde());                banner.setImages(strList);                banner.setDelayTime(2000);                banner.isAutoPlay(true);                banner.start();            }        }                @Override        public void onError(Throwable ex, boolean isOnCallback) {            Log.i(TAG, "onError: ");        }        @Override        public void onCancelled(CancelledException cex) {            Log.i(TAG, "onCancelled: ");        }        @Override        public void onFinished() {            Log.i(TAG, "onFinished: ");        }    });    }

5.以上操作，核心就会给集合 strList.add(pic) 添加数据，然后banner.setImages(strList)，就可以实现轮播，死数据和活数据都在上面。

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