解析json图片

来源：互联网发布：qt网络编程实战源码编辑：程序博客网时间：2024/05/06 08:53

public class MyPagerAdapter extends PagerAdapter {
   public Context context;
   public List<Item> list;

   public MyPagerAdapter(Context context, List<Item> list){
       this.context=context;
       this.list=list;
   }

   @Override
   public Object instantiateItem(ViewGroup container, int position) {
       // TODO Auto-generated method stub
       View v = View.inflate(context, R.layout.itempage, null);
       ImageView imagepage = (ImageView)v.findViewById(R.id.imagepage);
       BitmapUtils bit=new BitmapUtils(context);
       bit.display(imagepage,list.get(position%list.size()).img);
       container.addView(v);
       return v;
   }
   @Override
   public void destroyItem(ViewGroup container, int position, Object object) {
       // TODO Auto-generated method stub
       container.removeView((View) object);
   }
   @Override
   public int getCount() {
       return Integer.MAX_VALUE;
   }

   @Override
   public boolean isViewFromObject(View arg0, Object arg1) {
       return arg0==arg1;
   }

}

///////////////////////////////////////////////////////////////////////////////////////////////////////////////////

public class MainActivity extends FragmentActivity implements OnClickListener{
   private ViewPager page;
   private LinearLayout line;
   private List<ImageView> str;
   List<Item> list;
   private List<Fragment> listfragment;
   private ViewPager page2;
   private Button but1;
   private Button but2;
   private Button but3;
   private Button but4;
   List<Button> listButton;
   String path="http://172.17.29.120/localuser/ljy/shoptest/commodity.json";
   Handler han=new Handler(){
       public void handleMessage(android.os.Message msg){
           Bean[] bean = (Bean[])msg.obj;
           for (Bean bean2 : bean) {
               list = bean2.item;
           }
           page.setAdapter(new MyPagerAdapter(MainActivity.this,list));
           initData();
           setchge();
       };
   };
   Handler han1=new Handler(){
       public void handleMessage(Message msg) {
           int item = page.getCurrentItem();
           item++;
           page.setCurrentItem(item);
           han1.sendEmptyMessageDelayed(0, 2000);
       };
   };

   protected void onCreate(Bundle savedInstanceState) {
       super.onCreate(savedInstanceState);
       setContentView(R.layout.activity_main);
       //寻找控件
       getText1();
       //注册监听
       getonclick();
       //开启线程解析数据
       getThread();
       getData();
       page2.setAdapter(new MypageAdapter2(getSupportFragmentManager(), listfragment));
       listButton=new ArrayList<Button>();
       listButton.add(but1);
       listButton.add(but2);
       listButton.add(but3);
       listButton.add(but4);
       page2.setOnPageChangeListener(new OnPageChangeListener() {

           @Override
           public void onPageSelected(int arg0) {
               // TODO Auto-generated method stub
               for (int i = 0; i < listButton.size(); i++) {
                   if(i==arg0){
                       listButton.get(i).setTextColor(Color.RED);
                   }else{
                       listButton.get(i).setTextColor(Color.BLACK);
                   }
               }
           }

           @Override
           public void onPageScrolled(int arg0, float arg1, int arg2) {
               // TODO Auto-generated method stub

           }

           @Override
           public void onPageScrollStateChanged(int arg0) {
               // TODO Auto-generated method stub

           }
       });
   }
   private void getThread() {
       new Thread(){
           public void run() {
               getJson();
           };
       }.start();
   }
   private void getText1(){
       page = (ViewPager)findViewById(R.id.page);
       page2 = (ViewPager)findViewById(R.id.page2);
       line = (LinearLayout)findViewById(R.id.line);
       but1 = (Button)findViewById(R.id.but1);
       but2 = (Button)findViewById(R.id.but2);
       but3 = (Button)findViewById(R.id.but3);
       but4 = (Button)findViewById(R.id.but4);
   }
   private void getonclick() {
       but1.setOnClickListener(this);
       but2.setOnClickListener(this);
       but3.setOnClickListener(this);
       but4.setOnClickListener(this);
   }
   public void getData(){
       listfragment = new ArrayList<Fragment>();
       listfragment.add(new F1());
       listfragment.add(new F2());
       listfragment.add(new F3());
       listfragment.add(new F4());
   }

   @SuppressLint("NewApi")
   private void initData() {
       str = new ArrayList<ImageView>();
       str.clear();
       line.removeAllViews();
       // TODO Auto-generated method stub
       for (int i = 0; i <list.size(); i++) {
           ImageView imag=new ImageView(MainActivity.this);
           if(i==0){
               imag.setImageResource(R.drawable.dra);
           }else{
               imag.setImageResource(R.drawable.dra2);
           }
           LayoutParams params=new LayoutParams(15, 15);
           params.setMargins(5, 0, 5, 0);
           str.add(imag);
           line.addView(imag,params);
       }
   }
   private void setchge() {
       // TODO Auto-generated method stub
       page.setOnPageChangeListener(new OnPageChangeListener() {
           @Override
           public void onPageSelected(int arg0) {
               // TODO Auto-generated method stub
               for (int i = 0; i < str.size(); i++) {
                   if(i==arg0%list.size()){
                       str.get(i).setImageResource(R.drawable.dra);
                   }else{
                       str.get(i).setImageResource(R.drawable.dra2);
                   }
               }
           }
           @Override
           public void onPageScrolled(int arg0, float arg1, int arg2) {
               // TODO Auto-generated method stub

           }

           @Override
           public void onPageScrollStateChanged(int arg0) {
               // TODO Auto-generated method stub

           }
       });
       han1.sendEmptyMessageDelayed(0, 2000);
   }

   private void getJson() {
       // TODO Auto-generated method stub
       try {
           HttpClient http=new DefaultHttpClient();
           HttpGet get = new HttpGet(path);
           HttpResponse execute = http.execute(get);
           HttpEntity entity = execute.getEntity();
           String json = EntityUtils.toString(entity, "gbk");
           Gson gson=new Gson();
           Bean[] bean = gson.fromJson(json, Bean[].class);
           Message msg=Message.obtain();
           msg.obj=bean;
           han.sendMessage(msg);

       } catch (ClientProtocolException e) {
           // TODO Auto-generated catch block
           e.printStackTrace();
       } catch (IOException e) {
           // TODO Auto-generated catch block
           e.printStackTrace();
       }
   }
   @Override
   public void onClick(View arg0) {
       // TODO Auto-generated method stub
       switch (arg0.getId()) {
       case R.id.but1:
           page2.setCurrentItem(0);
           break;
       case R.id.but2:
           page2.setCurrentItem(1);
           break;
       case R.id.but3:
           page2.setCurrentItem(2);
           break;
       case R.id.but4:
           page2.setCurrentItem(3);
           break;
       default:
           break;
       }
   }



}

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