Android Banner本地和网络轮播图使用介绍
作者:HelloSXQ
大家好,本篇文章讲的是Android Banner本地和网络轮播图使用介绍,感兴趣的同学赶快来看一看吧,希望本篇文章对你起到帮助
现在恰好有个项目需要做个轮播图效果,这个需求也是很常见的需求,于是就做个笔记写一下实现过程
分为加载本地图片和网络图片
加载本地图片
第一步:先在build.gradle中加入banner和glide的依赖
//banner依赖 implementation 'com.youth.banner:banner:1.4.9' //Glide框架 implementation "com.github.bumptech.glide:glide:4.6.1"
第二步:xml布局
<com.youth.banner.Banner android:id="@+id/banner" android:layout_width="match_parent" android:layout_height="300dp" />
第三步:MainActivity
public class MainActivity extends AppCompatActivity { private Banner mBanner; private LocalImageLoader mImageLoader; private ArrayList<Integer> imagePath; private ArrayList<String> imageTitle; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); intView(); intDate(); } private void intDate() { imagePath = new ArrayList<>(); imageTitle = new ArrayList<>(); imagePath.add(R.mipmap.ic_launcher); imagePath.add(R.mipmap.ic_launcher); imagePath.add(R.mipmap.ic_launcher); imagePath.add(R.mipmap.ic_launcher); imagePath.add(R.mipmap.ic_launcher); imageTitle.add("第一"); imageTitle.add("第二"); imageTitle.add("第三"); imageTitle.add("第四"); imageTitle.add("第五"); } private void intView() { mImageLoader = new LocalImageLoader(); mBanner = findViewById(R.id.banner); //样式 mBanner.setBannerStyle(BannerConfig.CIRCLE_INDICATOR_TITLE); //加载器 mBanner.setImageLoader(mImageLoader); //动画效果 mBanner.setBannerAnimation(Transformer.ZoomOutSlide); //图片标题 mBanner.setBannerTitles(imageTitle); //间隔时间 mBanner.setDelayTime(4500); //是否为自动轮播 mBanner.isAutoPlay(true); //图片小点显示所在位置 mBanner.setIndicatorGravity(BannerConfig.CENTER); //图片加载地址 mBanner.setImages(imagePath); //启动轮播图。 mBanner.start(); //监听轮播图 mBanner.setOnBannerListener(new OnBannerListener() { @Override public void OnBannerClick(int position) { Toast.makeText(MainActivity.this, "点击了" + (position + 1) + "张轮播图", Toast.LENGTH_SHORT).show(); } }); } /** * 图片加载类 */ private class LocalImageLoader extends ImageLoader { @Override public void displayImage(Context context, Object path, ImageView imageView) { Glide.with(context.getApplicationContext()) .load(path) .into(imageView); } } }
加载网络图片
只要修改一下intDate()和LocalImageLoader()方法就好了
例如:
private void initData() { list_path.add("https://image.baidu.com/search/detail?ct=503316480&z=0&ipn=d&word=%E5%93%86%E5%95%A6A%E6%A2%A6&step_word=&hs=0&pn=8&spn=0&di=118140&pi=0&rn=1&tn=baiduimagedetail&is=0%2C0&istype=0&ie=utf-8&oe=utf-8&in=&cl=2&lm=-1&st=undefined&cs=3835923757%2C1980937759&os=265876109%2C1976020808&simid=0%2C0&adpicid=0&lpn=0&ln=1495&fr=&fmq=1573545585312_R&fm=&ic=undefined&s=undefined&hd=undefined&latest=undefined©right=undefined&se=&sme=&tab=0&width=undefined&height=undefined&face=undefined&ist=&jit=&cg=&bdtype=0&oriquery=&objurl=http%3A%2F%2Fimg24.pplive.cn%2Fcs180x240%2F2017%2F11%2F08%2F18331958489.jpg&fromurl=ippr_z2C%24qAzdH3FAzdH3Fe_z%26e3Brrpe_z%26e3Bv54AzdH3Frw2jAzdH3Ftwtk9F2rHzdii0tkWE_z%26e3Bip4s&gsm=&rpstart=0&rpnum=0&islist=&querylist=&force=undefined"); list_path.add("https://image.baidu.com/search/detail?ct=503316480&z=0&ipn=d&word=%E5%93%86%E5%95%A6A%E6%A2%A6&step_word=&hs=0&pn=8&spn=0&di=118140&pi=0&rn=1&tn=baiduimagedetail&is=0%2C0&istype=0&ie=utf-8&oe=utf-8&in=&cl=2&lm=-1&st=undefined&cs=3835923757%2C1980937759&os=265876109%2C1976020808&simid=0%2C0&adpicid=0&lpn=0&ln=1495&fr=&fmq=1573545585312_R&fm=&ic=undefined&s=undefined&hd=undefined&latest=undefined©right=undefined&se=&sme=&tab=0&width=undefined&height=undefined&face=undefined&ist=&jit=&cg=&bdtype=0&oriquery=&objurl=http%3A%2F%2Fimg24.pplive.cn%2Fcs180x240%2F2017%2F11%2F08%2F18331958489.jpg&fromurl=ippr_z2C%24qAzdH3FAzdH3Fe_z%26e3Brrpe_z%26e3Bv54AzdH3Frw2jAzdH3Ftwtk9F2rHzdii0tkWE_z%26e3Bip4s&gsm=&rpstart=0&rpnum=0&islist=&querylist=&force=undefined"); list_path.add("https://image.baidu.com/search/detail?ct=503316480&z=0&ipn=d&word=%E5%93%86%E5%95%A6A%E6%A2%A6&step_word=&hs=0&pn=8&spn=0&di=118140&pi=0&rn=1&tn=baiduimagedetail&is=0%2C0&istype=0&ie=utf-8&oe=utf-8&in=&cl=2&lm=-1&st=undefined&cs=3835923757%2C1980937759&os=265876109%2C1976020808&simid=0%2C0&adpicid=0&lpn=0&ln=1495&fr=&fmq=1573545585312_R&fm=&ic=undefined&s=undefined&hd=undefined&latest=undefined©right=undefined&se=&sme=&tab=0&width=undefined&height=undefined&face=undefined&ist=&jit=&cg=&bdtype=0&oriquery=&objurl=http%3A%2F%2Fimg24.pplive.cn%2Fcs180x240%2F2017%2F11%2F08%2F18331958489.jpg&fromurl=ippr_z2C%24qAzdH3FAzdH3Fe_z%26e3Brrpe_z%26e3Bv54AzdH3Frw2jAzdH3Ftwtk9F2rHzdii0tkWE_z%26e3Bip4s&gsm=&rpstart=0&rpnum=0&islist=&querylist=&force=undefined"); list_path.add("https://image.baidu.com/search/detail?ct=503316480&z=0&ipn=d&word=%E5%93%86%E5%95%A6A%E6%A2%A6&step_word=&hs=0&pn=8&spn=0&di=118140&pi=0&rn=1&tn=baiduimagedetail&is=0%2C0&istype=0&ie=utf-8&oe=utf-8&in=&cl=2&lm=-1&st=undefined&cs=3835923757%2C1980937759&os=265876109%2C1976020808&simid=0%2C0&adpicid=0&lpn=0&ln=1495&fr=&fmq=1573545585312_R&fm=&ic=undefined&s=undefined&hd=undefined&latest=undefined©right=undefined&se=&sme=&tab=0&width=undefined&height=undefined&face=undefined&ist=&jit=&cg=&bdtype=0&oriquery=&objurl=http%3A%2F%2Fimg24.pplive.cn%2Fcs180x240%2F2017%2F11%2F08%2F18331958489.jpg&fromurl=ippr_z2C%24qAzdH3FAzdH3Fe_z%26e3Brrpe_z%26e3Bv54AzdH3Frw2jAzdH3Ftwtk9F2rHzdii0tkWE_z%26e3Bip4s&gsm=&rpstart=0&rpnum=0&islist=&querylist=&force=undefined"); list_path.add("https://image.baidu.com/search/detail?ct=503316480&z=0&ipn=d&word=%E5%93%86%E5%95%A6A%E6%A2%A6&step_word=&hs=0&pn=8&spn=0&di=118140&pi=0&rn=1&tn=baiduimagedetail&is=0%2C0&istype=0&ie=utf-8&oe=utf-8&in=&cl=2&lm=-1&st=undefined&cs=3835923757%2C1980937759&os=265876109%2C1976020808&simid=0%2C0&adpicid=0&lpn=0&ln=1495&fr=&fmq=1573545585312_R&fm=&ic=undefined&s=undefined&hd=undefined&latest=undefined©right=undefined&se=&sme=&tab=0&width=undefined&height=undefined&face=undefined&ist=&jit=&cg=&bdtype=0&oriquery=&objurl=http%3A%2F%2Fimg24.pplive.cn%2Fcs180x240%2F2017%2F11%2F08%2F18331958489.jpg&fromurl=ippr_z2C%24qAzdH3FAzdH3Fe_z%26e3Brrpe_z%26e3Bv54AzdH3Frw2jAzdH3Ftwtk9F2rHzdii0tkWE_z%26e3Bip4s&gsm=&rpstart=0&rpnum=0&islist=&querylist=&force=undefined"); list_path.add("https://image.baidu.com/search/detail?ct=503316480&z=0&ipn=d&word=%E5%93%86%E5%95%A6A%E6%A2%A6&step_word=&hs=0&pn=8&spn=0&di=118140&pi=0&rn=1&tn=baiduimagedetail&is=0%2C0&istype=0&ie=utf-8&oe=utf-8&in=&cl=2&lm=-1&st=undefined&cs=3835923757%2C1980937759&os=265876109%2C1976020808&simid=0%2C0&adpicid=0&lpn=0&ln=1495&fr=&fmq=1573545585312_R&fm=&ic=undefined&s=undefined&hd=undefined&latest=undefined©right=undefined&se=&sme=&tab=0&width=undefined&height=undefined&face=undefined&ist=&jit=&cg=&bdtype=0&oriquery=&objurl=http%3A%2F%2Fimg24.pplive.cn%2Fcs180x240%2F2017%2F11%2F08%2F18331958489.jpg&fromurl=ippr_z2C%24qAzdH3FAzdH3Fe_z%26e3Brrpe_z%26e3Bv54AzdH3Frw2jAzdH3Ftwtk9F2rHzdii0tkWE_z%26e3Bip4s&gsm=&rpstart=0&rpnum=0&islist=&querylist=&force=undefined"); list_title.add("哆啦A梦1"); list_title.add("哆啦A梦2"); list_title.add("哆啦A梦3"); list_title.add("哆啦A梦4"); list_title.add("哆啦A梦5"); list_title.add("哆啦A梦6"); } private class LocalImageLoader extends ImageLoader { @Override public void displayImage(Context context, Object path, ImageView imageView) { Glide.with(context.getApplicationContext()) .load((String) path) .into(imageView); } }
下载网络图片的时候要记得添加网络权限
<uses-permission android:name="android.permission.INTERNET" />
补充。轮播图几种默认样式对比。。。PS:如果轮播图不想要title,就更改样式就好了
需要注意的是,如果设置有标题出现的样式,那么一定要设置setBannerTitles属性,不然会报错
样式一:CIRCLE_INDICATOR:无标题,有小圆点
//banner无标题样式 mBanner.setBannerStyle(BannerConfig.CIRCLE_INDICATOR);
效果图:
样式二:CIRCLE_INDICATOR_TITLE_INSIDE:小圆点和标题在同一栏
mBanner.setBannerStyle(BannerConfig.CIRCLE_INDICATOR_TITLE_INSIDE);
效果图
样式三:CIRCLE_INDICATOR_TITLE:标题和小圆点同时出现
mBanner.setBannerStyle(BannerConfig.CIRCLE_INDICATOR_TITLE);
效果图:
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