【Android基础入门〖8〗】SimpleAdapter之一

Activity

package com.michael.training;

import java.util.ArrayList;
import java.util.HashMap;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.Toast;

public class MainActivity extends Activity {

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

ListView listView = (ListView)findViewById(R.id.mListView);
ArrayList<HashMap<String, Object>> listItem = new ArrayList<HashMap<String, Object>>();

HashMap<String, Object> map = new HashMap<String, Object>();
map.put("Title", "NO.1	开发环境搭建");
map.put("Image", R.drawable.item);
listItem.add(map);

map = null;
map = new HashMap<String, Object>();
map.put("Title", "NO.2	四大组件");
map.put("Image", R.drawable.item);
listItem.add(map);

SimpleAdapter listAdapter = new SimpleAdapter(	this,
listItem,
R.layout.item_layout,
new String[] {"Title", "Image"},
new int[] {R.id.item_text,R.id.item_img});
listView.setAdapter(listAdapter);
listView.setOnItemClickListener(listener);
}

OnItemClickListener listener=new OnItemClickListener() {

@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,long arg3) {
Toast.makeText(getApplicationContext(),((Integer)arg2).toString()+"-----"+((Integer)arg2).toString(), Toast.LENGTH_SHORT).show();
}
};

@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}

}

main_layout.xml

<RelativeLayout   xmlns:android = "http://schemas.android.com/apk/res/android"
xmlns:tools = "http://schemas.android.com/tools"
android:layout_width = "match_parent"
android:layout_height = "match_parent"
tools:context = ".MainActivity"  >
<ListView
android:id = "@+id/mListView"
android:layout_width = "match_parent"
android:layout_height = "match_parent" />
</RelativeLayout>

item_layout.xml

<? xml   version = "1.0"   encoding = "utf-8" ?>
<RelativeLayout   xmlns:android = "http://schemas.android.com/apk/res/android"
android:layout_width = "fill_parent"
android:layout_height = "match_parent"
android:layout_gravity = "center_vertical"   xmlns:tools = "http://schemas.android.com/tools"   tools:ignore = "HardcodedText" >
<ImageView
android:id = "@+id/item_img"
android:layout_width = "wrap_content"
android:layout_height = "wrap_content"
android:layout_alignParentTop = "true"
android:layout_marginLeft = "10dp"
android:src = "@drawable/item"
android:contentDescription = "imageflag"   />
<TextView
android:id = "@+id/item_text"
android:layout_width = "wrap_content"
android:layout_height = "wrap_content"
android:layout_alignBottom = "@+id/item_img"
android:layout_alignParentRight = "true"
android:layout_alignParentTop = "true"
android:layout_marginTop = "4dp"
android:layout_marginLeft = "24dp"
android:layout_toRightOf = "@+id/item_img"
android:gravity = "center_vertical"
android:text = "环境搭建"
android:textStyle = "bold"   />
</RelativeLayout>

成果