Android ListView和Fragment结合使用，类似于某电商的实现，拿来就能用,详细标注适合新手

转载请注明出处王亟亟的大牛之路

一个类似于某电商的实现，让菜鸟们理解Activity与Fragment之间的参数是如何交互的。

包结构：

运行后的效果


分析：
左侧ListView可上下拖动，点击不同的item会影响右侧Fragment的内容。

废话不多说，上代码（详细标注）
MainActivity

public class MainActivity extends FragmentActivity implements OnItemClickListener {
    /*ListView填充用*/
    private String[] strs = { "常用分类", "服饰内衣","宠物", "手机", "家用电器", "数码", "电脑办公",
            "个护化妆", "图书","鞋靴" };
    private ListView listView;
    private MyAdapter adapter;
    private ContentFragment myFragment;
    /*选中的item的位数号码*/
    public static int mPosition;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        /*初始化*/
        initView();
    }

    /** * 初始化view */
    private void initView() {
        //匹配控件
        listView = (ListView) findViewById(R.id.listview);
        //传参
        adapter = new MyAdapter(this, strs);
        listView.setAdapter(adapter);
        //监听事件
        listView.setOnItemClickListener(this);

        //创建MyFragment对象
        myFragment = new ContentFragment();
        FragmentTransaction fragmentTransaction = getSupportFragmentManager()
                .beginTransaction();
        fragmentTransaction.replace(R.id.fragment_container, myFragment);
        //通过bundle传值给MyFragment
        Bundle bundle = new Bundle();
        bundle.putString(ContentFragment.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 ContentFragment();
            FragmentTransaction fragmentTransaction = getSupportFragmentManager()
                    .beginTransaction();
            fragmentTransaction.replace(R.id.fragment_container, myFragment);
            Bundle bundle = new Bundle();
            bundle.putString(ContentFragment.TAG, strs[position]);
            myFragment.setArguments(bundle);
            fragmentTransaction.commit();
        }
    }
}

ContentFragment

public class ContentFragment extends Fragment {

    public static final String TAG = "MyFragment";
    private String str;

    @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
        str = getArguments().getString(TAG);
        tv_title.setText(str);
        return view;
    }
}

ListView的适配器（已经做了简单的优化）

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() {
        // TODO Auto-generated method stub
        return strings.length;
    }

    @Override
    public Object getItem(int position) {
        // TODO Auto-generated method stub
        return strings[position];
    }

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

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
         ViewHolder  viewHolder=new ViewHolder();
        if(convertView==null){
             convertView = LayoutInflater.from(context).inflate(R.layout.listview_item, null);
             viewHolder.tv=(TextView) convertView.findViewById(R.id.tv);
             mPosition = position;
             viewHolder.tv.setText(strings[position]);
             if (position == MainActivity.mPosition) {
                    convertView.setBackgroundResource(R.drawable.tongcheng_all_bg01);
                } else {
                    convertView.setBackgroundColor(Color.parseColor("#f4f4f4"));
                }
             convertView.setTag(viewHolder);  
        }else{
             viewHolder = (ViewHolder) convertView.getTag();
        }
         viewHolder.tv.setText(strings[position]);
         if (position == MainActivity.mPosition) {
                convertView.setBackgroundResource(R.drawable.tongcheng_all_bg01);
            } else {
                convertView.setBackgroundColor(Color.parseColor("#f4f4f4"));
            }
         return convertView;
    }

    private static class ViewHolder {
        TextView tv;
    }
}

主布局文件：

<?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="全部种类" android:textColor="#BF3EFF" 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" />



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

</LinearLayout>

因为，属于写给新手初步理解这2个东西的。所以没有过多解释，注释已经很细了（自认为），也适合懒鬼拿来就用。

源码地址：http://yunpan.cn/cdkX7pQSCamJM 访问密码 82c9