实现一个快速简单的SimpleListDialog<T>

我写这样的文章都是为了快速迭代，所以都写的比较简单，谅解

此类支持任意Model对象，该对象需要重写toString()

import java.util.List;import android.app.Dialog;import android.content.Context;import android.os.Bundle;import android.util.DisplayMetrics;import android.view.Gravity;import android.view.View;import android.view.Window;import android.view.WindowManager;import android.widget.AdapterView;import android.widget.ListView;import com.mb.bgfitting.CommonAdapter;import com.mb.bgfitting.ViewHolder;import com.mb.bgfitting.app.R;/** *  * @author pythoner *  */public class SimpleListDialog<T> extends Dialog{    private Context context;    private ListView listView;    private List<T> beans;    private CommonAdapter<T> adapter;    public SimpleListDialog(Context context,List<T> beans)    {        this(context, R.style.Theme_Dialog_NoTitle,beans);        // TODO Auto-generated constructor stub            }    public SimpleListDialog(Context context, int theme,List<T> beans)    {        super(context, theme);        // TODO Auto-generated constructor stub        this.context = context;        this.beans = beans;        init();    }    private void init()    {        this.setCanceledOnTouchOutside(true);        this.setCancelable(true);    }    @Override    protected void onCreate(Bundle savedInstanceState)    {        // TODO Auto-generated method stub        super.onCreate(savedInstanceState);        setContentView(R.layout.dialog_simple_list);        initViews();//        initValues();    }    private void initViews()    {    if(beans==null){    return;    }        listView=(ListView)findViewById(R.id.listView);                listView.setAdapter(adapter = new CommonAdapter<T>( context, beans,  R.layout.item_simple_list){  @Overridepublic void setValues(ViewHolder helper, T item, int position) {// TODO Auto-generated method stubhelper.setText(R.id.item_0, item.toString());}});        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {@Overridepublic void onItemClick(AdapterView<?> arg0, View v, int position,long id) {// TODO Auto-generated method stubT instance=beans.get(position);if(onItemClickListener!=null){onItemClickListener.onItemClick(v, instance,position);}dismiss();}});    }    private void initValues()    {        // 不能写在init()中        Window window = getWindow();        WindowManager.LayoutParams lp = window.getAttributes();        DisplayMetrics dm = context.getResources().getDisplayMetrics();        lp.width = dm.widthPixels;        lp.gravity = Gravity.BOTTOM;        window.setAttributes(lp);    }    private OnItemClickListener<T> onItemClickListener;    public interface OnItemClickListener<T>    {        public void onItemClick(View v,T item,int position);    }public void setOnItemClickListener(OnItemClickListener<T> onItemClickListener) {this.onItemClickListener = onItemClickListener;}}

简单的一个Item布局item_simple_list.xml

<?xml version="1.0" encoding="utf-8"?><RelativeLayoutxmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="match_parent"android:layout_height="wrap_content">    <TextView         android:id="@+id/item_0"        android:layout_width="match_parent"android:layout_height="wrap_content"android:paddingTop="16dp"android:paddingBottom="16dp"android:gravity="center"android:textColor="@color/base_text_black"android:textSize="@dimen/font_xbig"android:singleLine="true"        /></RelativeLayout>

附件是需要的工具类，快速生成一个ListView的代码，可能需要Volley，如报错，可以注释掉不必要的代码，不影响本例。


使用：

List<KeyValue> list=new ArrayList<KeyValue>();list.add(new KeyValue("0","继续挑选"));list.add(new KeyValue("1","立即购买"));list.add(new KeyValue("2","配货投递"));list.add(new KeyValue("3","立即试衣"));SimpleListDialog<KeyValue> d=new SimpleListDialog<KeyValue>(context, list);d.setOnItemClickListener(new SimpleListDialog.OnItemClickListener<KeyValue>() {@Overridepublic void onItemClick(View v, KeyValue item, int position) {// TODO Auto-generated method stub}});d.show();

KeyValue是个Model对象，重写了toString()，可以是任何对象