Banner 網路圖片無限輪播 ImageLoader
阿新 • • 發佈:2019-01-26
1---新增依賴
compile 'com.youth.banner:banner:1.4.9' //Banner最新版本
compile 'com.nostra13.universalimageloader:universal-image-loader:1.9.5'//imageloader依賴2--- 新增許可權
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
3---添加布局
<com.youth.banner.Banner
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/banner"
android:layout_width="match_parent"
android:layout_height="200dp" />
4--Mapp程式碼(之後再許可權頁面加一個 android:name=".mapp")
importandroid.app.Application;
import com.nostra13.universalimageloader.core.ImageLoader; import com.nostra13.universalimageloader.core.ImageLoaderConfiguration;public class mapp extends Application{ @Override public void onCreate() { super.onCreate(); ImageLoaderConfiguration configuration = newImageLoaderConfiguration.Builder(this).build(); ImageLoader.getInstance().init(configuration); } }
主頁面:
package com.example.myapplication; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import com.youth.banner.Banner; import com.youth.banner.loader.ImageLoaderInterface; importjava.util.ArrayList; import java.util.Arrays; public class MainActivity extends AppCompatActivity { private Banner banner; String[] urls = {"http://img.my.csdn.net/uploads/201407/26/1406383265_8550.jpg", "https://lh4.googleusercontent.com/--dq8niRp7W4/URquVgmXvgI/AAAAAAAAAbs/-gnuLQfNnBA/s160-c/A%252520Song%252520of%252520Ice%252520and%252520Fire.jpg", "https://lh5.googleusercontent.com/-7qZeDtRKFKc/URquWZT1gOI/AAAAAAAAAbs/hqWgteyNXsg/s160-c/Another%252520Rockaway%252520Sunset.jpg", "https://lh3.googleusercontent.com/--L0Km39l5J8/URquXHGcdNI/AAAAAAAAAbs/3ZrSJNrSomQ/s160-c/Antelope%252520Butte.jpg", "https://lh6.googleusercontent.com/-8HO-4vIFnlw/URquZnsFgtI/AAAAAAAAAbs/WT8jViTF7vw/s160-c/Antelope%252520Hallway.jpg", "https://lh4.googleusercontent.com/-WIuWgVcU3Qw/URqubRVcj4I/AAAAAAAAAbs/YvbwgGjwdIQ/s160-c/Antelope%252520Walls.jpg"}; ArrayList<String> list = new ArrayList<>(); @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Banner banner = (Banner) findViewById(R.id.banner); banner.setImageLoader((ImageLoaderInterface) new BannerImageLoader()); banner.setImages(Arrays.asList(urls)); banner.start(); } }
BannerImageLoader頁面:
package com.example.myapplication; import android.content.Context; import android.widget.ImageView; import com.youth.banner.loader.ImageLoader; public class BannerImageLoader extends ImageLoader { @Override public void displayImage(Context context, Object obj, ImageView imageView) { com.nostra13.universalimageloader.core.ImageLoader imageLoaderInstance = com.nostra13.universalimageloader.core.ImageLoader.getInstance(); imageLoaderInstance.displayImage((String) obj, imageView); } }