Android 之仿京东分类（原理listview+fragment）

1.写一个fragment

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

public class MyFragment extends Fragment {


    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        View view = inflater.inflate(R.layout.myfragment, null);
        TextView tv_title = (TextView) view.findViewById(R.id.tv_title);
        //得到数据
        PersionInfo info = (PersionInfo) getArguments().getSerializable("info");
        tv_title.setText(info.getNameString());
        return view;
    }
}

2.写一个实体类：

public class PersionInfo implements Serializable {

    private String nameString;
    private boolean chick;   //标识

    public PersionInfo(String nameString) {
        this.nameString = nameString;
    }

    public String getNameString() {
        return nameString;
    }

    public void setNameString(String nameString) {
        this.nameString = nameString;
    }

    public boolean isChick() {
        return chick;
    }

    public void setChick(boolean chick) {
        this.chick = chick;
    }

}

3.写一个adapter

public class MyAdapter extends BaseAdapter {

    private Context context;
    private List<PersionInfo> listinfos;

    public MyAdapter(Context context, List<PersionInfo> listinfos){
        this.context =context;
        this.listinfos = listinfos;
    }

    @Override
    public int getCount() {
        // TODO Auto-generated method stub
        return listinfos.size();
    }

    @Override
    public Object getItem(int position) {
        // TODO Auto-generated method stub
        return listinfos.get(position);
    }

    @Override
    public long getItemId(int position) {
        // TODO Auto-generated method stub
        return position;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        // TODO Auto-generated method stub
        convertView = LayoutInflater.from(context).inflate(R.layout.listview_item, null);
        TextView tv = (TextView) convertView.findViewById(R.id.tv);
        PersionInfo persionInfo = listinfos.get(position);
        tv.setText(persionInfo.getNameString());
        if (persionInfo.isChick()) {
            convertView.setBackgroundResource(R.drawable.tongcheng_all_bg01);
        } else {
            convertView.setBackgroundColor(Color.parseColor("#f4f4f4"));
        }
        return convertView;
    }
}

4.adapter所需的list_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"
    android:minHeight="60dp"
    android:gravity="center"
    android:orientation="vertical" >

    <TextView
        android:id="@+id/tv"
        android:layout_width="wrap_content"
        android:layout_height="match_parent" />

</LinearLayout>

1. Maintivity

/**
 * 
 * @author yihuanxing
 *
 */
public class MainActivity extends FragmentActivity implements OnItemClickListener {
    List<PersionInfo> listinfoInfos=new ArrayList<PersionInfo>();
    private ListView listView;
    private MyAdapter adapter;
    private MyFragment myFragment;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        initView();
    }

    /**
     * 初始化view
     */
    private void initView() {
        // TODO Auto-generated method stub
        for (int i = 0; i < 10; i++) { 
            PersionInfo info=new PersionInfo("常用分类"+i);
            listinfoInfos.add(info);
        }

        //
        listView = (ListView) findViewById(R.id.listview);
        //默认
        listinfoInfos.get(0).setChick(true);
        adapter = new MyAdapter(this, listinfoInfos);
        listView.setAdapter(adapter);

        listView.setOnItemClickListener(this);

        //创建MyFragment对象
        myFragment = new MyFragment();
        FragmentTransaction fragmentTransaction = getSupportFragmentManager().beginTransaction();
        fragmentTransaction.replace(R.id.fragment_container, myFragment);

        Bundle mBundle=new Bundle();
        mBundle.putSerializable("info", listinfoInfos.get(0));
        myFragment.setArguments(mBundle);
        fragmentTransaction.commit();
    }

    @Override
    public void onItemClick(AdapterView<?> parent, View view, int position,
            long id) {

         PersionInfo info = listinfoInfos.get(position);
        for (int i = 0; i < listinfoInfos.size(); i++) {
            if(listinfoInfos.get(i).getNameString().equals(info.getNameString())){
                listinfoInfos.get(i).setChick(true);
            }else {
                listinfoInfos.get(i).setChick(false);
            }
        }

        adapter.notifyDataSetChanged();


        //
        //创建MyFragment对象
        myFragment = new MyFragment();
        FragmentTransaction fragmentTransaction = getSupportFragmentManager().beginTransaction();
        fragmentTransaction.replace(R.id.fragment_container, myFragment);

        Bundle mBundle=new Bundle();
        mBundle.putSerializable("info", listinfoInfos.get(position));
        myFragment.setArguments(mBundle);
        fragmentTransaction.commit();
    }
}

6 main.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"
    android:orientation="vertical" >

    <RelativeLayout
        android:id="@+id/jzfw_top_layout"
        android:layout_width="match_parent"
        android:layout_height="42dp"
        android:background="@drawable/home_title"
        android:gravity="center_vertical" >

        <TextView
            android:id="@+id/jzfw_top_layout_02"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerHorizontal="true"
            android:layout_centerVertical="true"
            android:text="仿京东分类"
            android:textColor="#ffffff"
            android:textSize="20sp" />
    </RelativeLayout>

    <View
        android:layout_width="match_parent"
        android:layout_height="1dp"
        android:background="#cdcdcd" />

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="#fbfbfb"
        android:orientation="horizontal" >

        <ListView
            android:id="@+id/listview"
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:scrollbars="none"
            android:layout_weight="1.0"
            android:background="#f4f4f4" />

        <View
            android:layout_width="1dp"
            android:layout_height="match_parent"
            android:background="#cdcdcd" />

        <FrameLayout
            android:id="@+id/fragment_container"
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_weight="3.0" />
    </LinearLayout>

</LinearLayout>

效果图：