imageloader+多条目+xListview

于 2018-04-23 08:10:34 发布
阅读量188 收藏
点赞数 1 
public class MainActivity extends AppCompatActivity {

    private XListView xListView;

    private int pager=1;
    private int types=1;
    private  List<ReaData.DataBean.ContentBean> dadts;
    private String path="http://data.v.qq.com/videocms/getNewsvideoList.php?ref=pclient&appkey=6UkwV9DeHr9_PC&vsite=new_vshou&ename=new_vs_feature&report=web.news&_=1504358456351"+pager;
    private MyAdapter adapter;
    @SuppressLint("HandlerLeak")
    private Handler handler=new Handler(  ){



        @Override
        public void handleMessage(Message msg) {
            super.handleMessage( msg );
            List<ReaData.DataBean.ContentBean> list= (List<ReaData.DataBean.ContentBean>) msg.obj;






        }
    };


    private void setXlAdapter() {
        if (adapter==null){
            adapter = new MyAdapter( dadts, MainActivity.this );
            xListView.setAdapter( adapter );
        }else {
            adapter.notifyDataSetChanged();
        }
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate( savedInstanceState );
        setContentView( R.layout.activity_main );
        dadts=new ArrayList<>(  );
       xListView= findViewById( R.id.xlv );
      initTher();
      initPlv();
    }

    private void initPlv() {
        xListView.setPullLoadEnable( true );
        xListView.setPullRefreshEnable( true );
        xListView.setXListViewListener( new XListView.IXListViewListener() {
            @Override
            public void onRefresh() {
                types=1;
                pager=1;
                path="http://data.v.qq.com/videocms/getNewsvideoList.php?ref=pclient&appkey=6UkwV9DeHr9_PC&vsite=new_vshou&ename=new_vs_feature&report=web.news&_=1504358456351"+pager;
          initTher();
            }

            @Override
            public void onLoadMore() {
                types=2;
                pager++;
                path="http://data.v.qq.com/videocms/getNewsvideoList.php?ref=pclient&appkey=6UkwV9DeHr9_PC&vsite=new_vshou&ename=new_vs_feature&report=web.news&_=1504358456351"+pager;
                initTher();
            }
        } );
    }

    private void initTher() {
        new Thread(  ){
            @Override
            public void run() {
                super.run();
                initData();
            }
        }.start();
    }

    private void initData() {
        try {
            URL url = new URL(path);
            HttpURLConnection  urlConnection = (HttpURLConnection) url.openConnection();
            urlConnection.setRequestMethod( "GET" );
            urlConnection.setReadTimeout( 5000 );
            urlConnection.setConnectTimeout( 5000 );
            int responseCode = urlConnection.getResponseCode();
if (responseCode==200){
    InputStream inputStream = urlConnection.getInputStream();
    String s=streamToString(inputStream);
    String replace = s.replace( "content(", "" ).replace( ");", "" );
    Gson gson = new Gson();
    ReaData reaData = gson.fromJson( replace, ReaData.class );
    List<ReaData.DataBean.ContentBean> content = reaData.getData().getContent();
   if (types==1){
       dadts.clear();
   }
   dadts.addAll( content );
   setXlAdapter();
if (types==1){
   xListView.stopRefresh();
    Date date=new Date(System.currentTimeMillis());
    SimpleDateFormat sdf=new SimpleDateFormat("MM-dd HH:mm:ss");
    String time = sdf.format(date);
    xListView.setRefreshTime( time );
}else {
    xListView.stopLoadMore();
}

    Message obtain = Message.obtain();
    obtain.obj=content;
    handler.sendMessage( obtain );


}
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    private String streamToString(InputStream stream) {
        StringBuilder sbuilder=new StringBuilder();
        String str;
        BufferedReader reader=new BufferedReader(new InputStreamReader(stream));

        try {
            while ((str=reader.readLine())!=null){
                sbuilder.append(str);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return  sbuilder.toString();

    }
}
 

public class MyAdapter extends BaseAdapter {
    List<ReaData.DataBean.ContentBean> list;
    Context context;
    private final  int ONE_ITEM=0;
    private final  int TWO_ITEM=1;
    private final DisplayImageOptions options;

    public MyAdapter(List<ReaData.DataBean.ContentBean> list, Context context) {
        this.list = list;
        this.context = context;
        //使用内存缓存
//使用磁盘缓存
//设置图片色彩模式
//设置图片的缩放模式
// .displayer(new RoundedBitmapDisplayer(50))//设置圆角
        options = new DisplayImageOptions.Builder().cacheInMemory( true )//使用内存缓存
                .cacheOnDisk( true )//使用磁盘缓存
                .bitmapConfig( Bitmap.Config.RGB_565 )//设置图片色彩模式
                .imageScaleType( ImageScaleType.EXACTLY )//设置图片的缩放模式
                .showImageOnLoading(R.mipmap.ic_launcher)//设置正在下载的图片
                .showImageForEmptyUri(R.mipmap.ic_launcher)//url为空或请求的资源不存在时
                .showImageOnFail(R.mipmap.ic_launcher)//下载失败时显示的图片
                .displayer(new RoundedBitmapDisplayer(50))//设置圆角
                .build();
    }

    @Override
    public int getItemViewType(int position) {
        String vplus_pic = list.get( position ).getVplus_pic();
if (vplus_pic==null){
    return ONE_ITEM;
}else {
    return TWO_ITEM;
}

    }

    @Override
    public int getViewTypeCount() {
        return 2;
    }

    @Override
    public int getCount() {
        return list.size();
    }

    @Override
    public Object getItem(int position) {
        return list.get( position );
    }

    @Override
    public long getItemId(int position) {
        return position;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        int itemViewType = getItemViewType( position );

        if (itemViewType==ONE_ITEM){
            MyHolder1 myHolder1;
            if (convertView==null){
                convertView=View.inflate( context,R.layout.item2,null );
                myHolder1 = new MyHolder1();
                myHolder1.tv=convertView.findViewById( R.id.tv );
                convertView.setTag( myHolder1 );
            }else {
                myHolder1= (MyHolder1) convertView.getTag();
            }
            myHolder1.tv.setText( list.get( position ).getTitle());
            return convertView;
        } else {
            MyHolder myHolder;
            if (convertView==null){
                convertView=View.inflate( context,R.layout.item1,null );
                myHolder = new MyHolder();
                myHolder.textView=convertView.findViewById( R.id.tv );
                myHolder.imageView=convertView.findViewById( R.id.img );
                convertView.setTag( myHolder );
            }else {
                myHolder= (MyHolder) convertView.getTag();
            }
            myHolder.textView.setText( list.get( position ).getTitle());
            String vplus_pic = list.get( position ).getVplus_pic();
            ImageLoader.getInstance().displayImage( vplus_pic,myHolder.imageView,options );
            return convertView;
        }

    }
    class MyHolder{
        TextView textView;
        ImageView imageView;
    }
    class MyHolder1{
        TextView tv;

    }
}
 

 

public class MyApp extends Application {
    @Override
    public void onCreate() {
        super.onCreate();
        File cachefile = new File( Environment.getExternalStorageDirectory().getPath()+"/idm");
        ImageLoaderConfiguration configuration = new ImageLoaderConfiguration.Builder(this)
                .memoryCacheExtraOptions(480, 800)//缓存图片最大的长和宽
                .threadPoolSize(3)//线程池的数量
                .threadPriority(4)
                .memoryCacheSize(30*1024*1024)//设置内存缓存区大小
                .diskCacheSize(30*1024*1024)//设置sd卡缓存区大小
                .diskCache(new UnlimitedDiscCache(cachefile))//自定义缓存目录
                .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(configuration);
    }
}

 

public class ReaData {  数据
 

 

main
 

<android.support.v4.widget.DrawerLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:id="@+id/mydrawer"
    xmlns:android="http://schemas.android.com/apk/res/android"
    >
    <LinearLayout
        android:layout_width="180dp"
        android:layout_height="match_parent"
        android:layout_gravity="start"
        android:background="#aff"
        >
        <ImageView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@mipmap/ic_launcher"/>

    </LinearLayout>

    <com.bawei.jane.mxlistview.view.XListView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/xlv"
        >

    </com.bawei.jane.mxlistview.view.XListView>
</android.support.v4.widget.DrawerLayout>
 

item1
 

 

<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent"
    android:layout_height="match_parent">
<ImageView
    android:layout_width="90dp"
    android:layout_height="90dp"
    android:id="@+id/img"
    android:src="@mipmap/ic_launcher"/>
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/tv"
        android:layout_toRightOf="@+id/img"/>
</RelativeLayout>
 

 

item2
 

<android.support.constraint.ConstraintLayout
    xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent"
    android:layout_height="match_parent">
<TextView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:id="@+id/tv"/>
</android.support.constraint.ConstraintLayout>
 

 

 

 


                

        

    

  



    

      

        

            

              
                
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