Android仿京东分类

最近工作上也不忙，抽空学习学习，就想到了这个效果，写出来供分享，代码写的有点粗，不过能看懂，下面将一些核心代码贴出来供参考，扫描下方二维码，获取完整源码。

效果图

screenshot.png

核心代码

activity_main.xml

listview_item.xml

myfragment.xml

MainActivity.java

package com.example.listviewfragmentdemo;

import com.example.listviewfragmentdemo.adapter.MyAdapter;

import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentTransaction;
import android.view.View;
import android.view.Window;
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" };
    private ListView listView;
    private MyAdapter adapter;
    private MyFragment myFragment;
    public static int mPosition;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        this.requestWindowFeature(Window.FEATURE_NO_TITLE);//去掉标题栏  
        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();
        }
    }
}

MyAdapter.java

package com.example.listviewfragmentdemo.adapter;

import com.example.listviewfragmentdemo.MainActivity;
import com.example.listviewfragmentdemo.R;
import android.annotation.SuppressLint;
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;

@SuppressLint("ViewHolder")
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) {
        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.tongcheng_all_bg01);
        } else {
            convertView.setBackgroundColor(Color.parseColor("#f4f4f4"));
        }
        return convertView;
    }
}

MyFragment.java

package com.example.listviewfragmentdemo;

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;
    }
}

扫描下方二维码，获取完整源码

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