Android防京东分类

效果如下：

一、activity_main

<?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" >

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

    <TextView
        android:layout_width="match_parent"
        android:layout_height="40dp"
        android:background="#ededed"
        android:gravity="center"
        android:text="分类"
        android:textColor="#333333"
        android:textSize="17sp" />

    <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>

二、listview_item

<?xml version="1.0" encoding="utf-8"?>
<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>

三、myfragment、

<?xml version="1.0" encoding="utf-8"?>
<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_title"/>

</android.support.constraint.ConstraintLayout>

四、Mainactivity

import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentTransaction;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListView;

public class MainActivity extends FragmentActivity implements OnItemClickListener {

    private String[] strs = { "常用分类", "服饰内衣", "鞋靴", "手机", "家用电器", "数码", "电脑办公",
            "个护化妆", "图书","常用分类", "服饰内衣", "鞋靴", "手机", "家用电器", "数码", "电脑办公",
            "个护化妆", "图书" };
    private ListView listView;
    private MyAdapter adapter;
    private MyFragment myFragment;
    public static int mPosition;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        initView();
    }
    /**
     * 初始化view
     */
    private void initView() {
        listView = (ListView) findViewById(R.id.listview);

        adapter = new MyAdapter(this, strs);
        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);
        //通过bundle传值给MyFragment
        Bundle bundle = new Bundle();
        bundle.putString(MyFragment.TAG, strs[mPosition]);
        myFragment.setArguments(bundle);
        fragmentTransaction.commit();
    }

    @Override
    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
        //拿到当前位置
        mPosition = position;
        //即使刷新adapter
        adapter.notifyDataSetChanged();
        for (int i = 0; i < strs.length; i++) {
            myFragment = new MyFragment();
            FragmentTransaction fragmentTransaction = getSupportFragmentManager().beginTransaction();
            fragmentTransaction.replace(R.id.fragment_container, myFragment);
            Bundle bundle = new Bundle();
            bundle.putString(MyFragment.TAG, strs[position]);
            myFragment.setArguments(bundle);
            fragmentTransaction.commit();
        }
    }
}

五、MyAdapter

import android.content.Context;
import android.graphics.Color;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;

public class MyAdapter extends BaseAdapter {

    private Context context;
    private String[] strings;
    public static int mPosition;

    public MyAdapter(Context context, String[] strings){
        this.context =context;
        this.strings = strings;
    }

    @Override
    public int getCount() {
        return strings.length;
    }

    @Override
    public Object getItem(int position) {
        return strings[position];
    }

    @Override
    public long getItemId(int position) {
        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);
        mPosition = position;
        tv.setText(strings[position]);
        if (position == MainActivity.mPosition) {
            convertView.setBackgroundResource(R.drawable.ic_launcher_background);
        } else {
            convertView.setBackgroundColor(Color.parseColor("#f4f4f4"));
        }
        return convertView;
    }
}

六、MyFragment

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 {

    public static final String TAG = "MyFragment";
    private String str;
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.myfragment, null);
        TextView tv_title = (TextView) view.findViewById(R.id.tv_title);
        //得到数据
        str = getArguments().getString(TAG);
        tv_title.setText(str);
        return view;
    }
}