Android Studio 轮播图

以下是Android Studio实现轮播图的步骤：

1.在app/build.gradle文件中添加依赖项：

dependencies {
    implementation 'com.android.support:appcompat-v7:28.0.0'
    implementation 'com.android.support:design:28.0.0'
    implementation 'com.android.support:support-v4:28.0.0'
    implementation 'com.android.support.constraint:constraint-layout:1.1.3'
    implementation 'com.android.support:cardview-v7:28.0.0'
    implementation 'com.android.support:recyclerview-v7:28.0.0'
    implementation 'com.android.support:palette-v7:28.0.0'
    implementation 'com.android.support:multidex:1.0.3'
    implementation 'com.android.support:support-vector-drawable:28.0.0'
    implementation 'com.android.support:animated-vector-drawable:28.0.0'
    implementation 'com.android.support:customtabs:28.0.0'
    implementation 'com.android.support:exifinterface:28.0.0'
    implementation 'com.android.support:preference-v7:28.0.0'
    implementation 'com.android.support:preference-v14:28.0.0'
    implementation 'com.android.support:percent:28.0.0'
    implementation 'com.android.support:mediarouter-v7:28.0.0'
    implementation 'com.android.support:gridlayout-v7:28.0.0'
    implementation 'com.android.support:leanback-v17:28.0.0'
    implementation 'com.android.support:cursoradapter:28.0.0'
    implementation 'com.android.support:documentfile:28.0.0'
    implementation 'com.android.support:localbroadcastmanager:28.0.0'
    implementation 'com.android.support:print:28.0.0'
    implementation 'com.android.support:slices-builders:28.0.0'
    implementation 'com.android.support:slices-core:28.0.0'
    implementation 'com.android.support:slices-view:28.0.0'
    implementation 'com.android.support:wear:28.0.0'
    implementation 'com.android.support:wear-watchface:28.0.0'
    implementation 'com.android.support:wear-remote-interaction:28.0.0'
    implementation 'com.android.support.constraint:constraint-layout:1.1.3'
    implementation 'com.android.support:cardview-v7:28.0.0'
    implementation 'com.android.support:recyclerview-v7:28.0.0'
    implementation 'com.android.support:palette-v7:28.0.0'
    implementation 'com.android.support:multidex:1.0.3'
    implementation 'com.android.support:support-vector-drawable:28.0.0'
    implementation 'com.android.support:animated-vector-drawable:28.0.0'
    implementation 'com.android.support:customtabs:28.0.0'
    implementation 'com.android.support:exifinterface:28.0.0'
    implementation 'com.android.support:preference-v7:28.0.0'
    implementation 'com.android.support:preference-v14:28.0.0'
    implementation 'com.android.support:percent:28.0.0'
    implementation 'com.android.support:mediarouter-v7:28.0.0'
    implementation 'com.android.support:gridlayout-v7:28.0.0'
    implementation 'com.android.support:leanback-v17:28.0.0'
    implementation 'com.android.support:cursoradapter:28.0.0'
    implementation 'com.android.support:documentfile:28.0.0'
    implementation 'com.android.support:localbroadcastmanager:28.0.0'
    implementation 'com.android.support:print:28.0.0'
    implementation 'com.android.support:slices-builders:28.0.0'
    implementation 'com.android.support:slices-core:28.0.0'
    implementation 'com.android.support:slices-view:28.0.0'
    implementation 'com.android.support:wear:28.0.0'
    implementation 'com.android.support:wear-watchface:28.0.0'
    implementation 'com.android.support:wear-remote-interaction:28.0.0'
    implementation 'com.youth.banner:banner:1.4.10'
}

2.在布局文件中添加Banner组件：

<com.youth.banner.Banner
    android:id="@+id/banner"
    android:layout_width="match_parent"
    android:layout_height="200dp"
    app:banner_indicatorGravity="center"
    app:banner_delay_time="3000"
    app:banner_is_auto_play="true"
    app:banner_scroll_time="1000" />

3.在Activity或Fragment中设置Banner的数据源和图片加载器：

// 设置数据源
List<String> images = new ArrayList<>();
images.add("http://img.zcool.cn/community/01c8dc5d6f1e6fa801219c77f8f8c9.jpg");
images.add("http://img.zcool.cn/community/01c8dc5d6f1e6fa801219c77f8f8c9.jpg");
images.add("http://img.zcool.cn/community/01c8dc5d6f1e6fa801219c77f8f8c9.jpg");
banner.setImages(images);

// 设置图片加载器
banner.setImageLoader(new GlideImageLoader());

4.创建图片加载器类：

public class GlideImageLoader extends ImageLoader {
    @Override
    public void displayImage(Context context, Object path, ImageView imageView) {
        Glide.with(context).load(path).into(imageView);
    }
}

5.启动Banner轮播：

banner.start();