PullToRefreshScrollView+Banner+banner.Listview

activity_main.xml

Banner：http://blog.csdn.net/qq_37454196/article/details/78328594

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"xmlns:app="http://schemas.android.com/apk/res-auto"xmlns:tools="http://schemas.android.com/tools"android:layout_width="match_parent"android:layout_height="match_parent"tools:context="com.example.week.banner.MainActivity"><com.handmark.pulltorefresh.library.PullToRefreshScrollViewandroid:id="@+id/pull_rs"android:layout_width="match_parent"android:layout_height="match_parent"><LinearLayoutandroid:layout_width="match_parent"android:layout_height="match_parent"android:orientation="vertical"><com.youth.banner.Bannerandroid:id="@+id/banner"android:layout_width="match_parent"android:layout_height="200dp"></com.youth.banner.Banner><com.example.week.banner.Listviewandroid:id="@+id/lv"android:layout_width="match_parent"android:layout_height="match_parent"></com.example.week.banner.Listview></LinearLayout></com.handmark.pulltorefresh.library.PullToRefreshScrollView>
</RelativeLayout>

banner.Listview

Listview.java

public class Listview extends ListView {public Listview(Context context) {super(context);}public Listview(Context context, AttributeSet attrs) {super(context, attrs);}@Overrideprotected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {int expandSpec = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE >> 2,MeasureSpec.AT_MOST);super.onMeasure(widthMeasureSpec, expandSpec);}
}

item.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="match_parent"android:layout_height="match_parent"><ImageViewandroid:id="@+id/imageView"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_weight="1" /><TextViewandroid:id="@+id/textView"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_alignRight="@+id/imageView"android:layout_weight="1" />
</LinearLayout>

Bean.java

public class Bean {private int status;private String info;private List<DataBean> data;public int getStatus() {return status;}public void setStatus(int status) {this.status = status;}public String getInfo() {return info;}public void setInfo(String info) {this.info = info;}public List<DataBean> getData() {return data;}public void setData(List<DataBean> data) {this.data = data;}public static class DataBean {private String news_id;private String news_title;private String news_summary;private String pic_url;public String getNews_id() {return news_id;}public void setNews_id(String news_id) {this.news_id = news_id;}public String getNews_title() {return news_title;}public void setNews_title(String news_title) {this.news_title = news_title;}public String getNews_summary() {return news_summary;}public void setNews_summary(String news_summary) {this.news_summary = news_summary;}public String getPic_url() {return pic_url;}public void setPic_url(String pic_url) {this.pic_url = pic_url;}}
}

MainActivity.java

public class MainActivity extends AppCompatActivity {private PullToRefreshScrollView pull_rs;private Banner banner;private Listview lv;private StringBuilder builder;int index = 1;int type = 1;List<Bean.DataBean> list = new ArrayList<>();private MyAdapter adapter;private List<String> list2;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);pull_rs = (PullToRefreshScrollView) findViewById(R.id.pull_rs);banner = (Banner) findViewById(R.id.banner);lv = (Listview) findViewById(R.id.lv);intRefreshScrollView();init();}public void init() {Mytask mytask = new Mytask();mytask.execute("http://api.expoon.com/AppNews/getNewsList/type/1/p/1");}private void addToTop() {type = 1;Mytask mytask = new Mytask();mytask.execute("http://api.expoon.com/AppNews/getNewsList/type/1/p/1");}private void addToBottom() {type = 2;index++;Mytask mytask = new Mytask();mytask.execute("http://api.expoon.com/AppNews/getNewsList/type/1/p/" + index);}public void setAdapter() {if (adapter == null) {adapter = new MyAdapter();lv.setAdapter(adapter);} else {adapter.notifyDataSetChanged();}}private void intRefreshScrollView() {//1.设置模式pull_rs.setMode(PullToRefreshBase.Mode.BOTH);//2.通过调用getLoadingLayoutProxy方法，设置下拉刷新状况布局中显示的文字 ，第一个参数为true,代表下拉刷新ILoadingLayout headLables = pull_rs.getLoadingLayoutProxy(true, false);headLables.setPullLabel("下拉刷新");headLables.setRefreshingLabel("正在刷新");headLables.setReleaseLabel("松开刷新");//2.设置上拉加载底部视图中显示的文字，第一个参数为false,代表上拉加载更多ILoadingLayout footerLables = pull_rs.getLoadingLayoutProxy(false, true);footerLables.setPullLabel("上拉加载");footerLables.setRefreshingLabel("正在载入...");footerLables.setReleaseLabel("松开加载更多");//3.设置监听事件pull_rs.setOnRefreshListener(new PullToRefreshBase.OnRefreshListener2<ScrollView>() {@Overridepublic void onPullDownToRefresh(PullToRefreshBase<ScrollView> refreshView) {addToTop();//请求网络数据，并更新listview组件refreshComplete();//数据加载完成后，关闭header,footer}@Overridepublic void onPullUpToRefresh(PullToRefreshBase<ScrollView> refreshView) {addToBottom();//请求网络数据，并更新listview组件refreshComplete();//数据加载完成后，关闭header,footer}});}/*** 刷新完成时关闭*/public void refreshComplete() {new Handler().postDelayed(new Runnable() {@Overridepublic void run() {pull_rs.onRefreshComplete();}}, 1000);}class Mytask extends AsyncTask<String, Void, String> {@Overrideprotected String doInBackground(String... strings) {try {//获取urlURL url = new URL(strings[0]);//请求网络HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();int code = urlConnection.getResponseCode();//判断是否返回成功if (code == 200) {//获取网络信息InputStream inputStream = urlConnection.getInputStream();BufferedReader bf = new BufferedReader(new InputStreamReader(inputStream));builder = new StringBuilder();String s = "";//拼接while ((s = bf.readLine()) != null) {builder.append(s);}}} catch (Exception e) {e.printStackTrace();}return builder.toString();}@Overrideprotected void onPostExecute(String s) {super.onPostExecute(s);Gson gson = new Gson();Bean json = gson.fromJson(s, Bean.class);if (type == 1) {list.clear();list.addAll(json.getData());} else {list.addAll(json.getData());}Log.d("zzz", list.toString());//设置banner样式// banner.setBannerStyle(BannerConfig.CIRCLE_INDICATOR_TITLE_INSIDE);//设置图片加载器list2 = new ArrayList<>();for (int i = 0; i < list.size(); i++) {list2.add(list.get(i).getPic_url());}banner.setImageLoader(new MyImagloder());//设置图片集合banner.setImages(list2);//设置banner动画效果//banner.setBannerAnimation(Transformer.RotateDown);//设置标题集合（当banner样式有显示title时）//banner.setBannerTitles(imageTitle);//设置轮播时间banner.setDelayTime(1500);//设置指示器位置（当banner模式中有指示器时）//banner.setIndicatorGravity(BannerConfig.CENTER);//banner设置方法全部调用完毕时最后调用banner.start();setAdapter();}}class MyAdapter extends BaseAdapter {@Overridepublic int getCount() {return list.size();}@Overridepublic Object getItem(int position) {return null;}@Overridepublic long getItemId(int position) {return 0;}@Overridepublic View getView(int position, View convertView, ViewGroup parent) {Viewholder vh;if (convertView == null) {vh = new Viewholder();convertView = View.inflate(MainActivity.this, R.layout.item, null);vh.img = (ImageView) convertView.findViewById(R.id.imageView);vh.tv = (TextView) convertView.findViewById(R.id.textView);convertView.setTag(vh);} else {vh = (Viewholder) convertView.getTag();}vh.tv.setText(list.get(position).getNews_title());ImageLoader.getInstance().displayImage(list.get(position).getPic_url(), vh.img);return convertView;}}public static class Viewholder {ImageView img;TextView tv;}
}

Mapp.java

public class Mapp extends Application{public void onCreate() {super.onCreate();File cacheFile=getExternalCacheDir();ImageLoaderConfiguration config=new ImageLoaderConfiguration.Builder(this).memoryCacheExtraOptions(480, 800)//缓存图片最大的长和宽.threadPoolSize(2)//线程池的数量.threadPriority(4).memoryCacheSize(2*1024*1024)//设置内存缓存区大小.diskCacheSize(20*1024*1024)//设置sd卡缓存区大小.writeDebugLogs()//打印日志内容.diskCacheFileNameGenerator(new Md5FileNameGenerator())//给缓存的文件名进行md5加密处理.build();ImageLoader.getInstance().init(config);}public static DisplayImageOptions getImageOptions(){DisplayImageOptions optionsoptions=new DisplayImageOptions.Builder().cacheInMemory(true)//使用内存缓存.cacheOnDisk(true)//使用磁盘缓存.bitmapConfig(Bitmap.Config.RGB_565)//设置图片格式.build();return optionsoptions;}
}

MyImaglodder.java

public class MyImagloder extends ImageLoader {@Overridepublic void displayImage(Context context, Object path, ImageView imageView) {//得到ImageLoader的实例com.nostra13.universalimageloader.core.ImageLoader instance = com.nostra13.universalimageloader.core.ImageLoader.getInstance();//通过ImageLoader设置图片instance.displayImage((String) path, imageView);}
}