【Android基础入门〖9〗】SimpleAdapter之二

1    MainActivity.java

package com.myadapter;
import java.util.ArrayList;
import java.util.HashMap;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.Button;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.TextView;
import android.widget.Toast;
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);

//声明一个 ListView
ListView listview = new ListView(this);

//定义数组  数组内容是 HashMap
ArrayList<HashMap<String,Object>> list=new ArrayList<HashMap<String,Object>>();

//每一个HashMap 对应ListView 中 每一个 item 的数据
HashMap<String,Object>map=new HashMap<String, Object>();
map.put("Image", R.drawable.star);
map.put("Text1", "周杰伦");
map.put("Text2", "菊花台");
map.put("Button", "更多");
list.add(map);

map=null;
map=new HashMap<String, Object>();
map.put("Image", R.drawable.ic_menu_send);
map.put("Text1", "邓丽君");
map.put("Text2", "在水一方");
map.put("Button", "更多");
list.add(map);

map=null;
map=new HashMap<String, Object>();
map.put("Image", R.drawable.star);
map.put("Text1", "蔡琴");
map.put("Text2", "恰似你的温柔");
map.put("Button", "更多");
list.add(map);

//适配器  绑定数据
SimpleAdapter adapter=new SimpleAdapter(
this,                             //上下文
list,                             //要绑定的数据
R.layout.item_layout,             //每一个 item 的布局
new String[]{ "Text1",    "Text2",    "Button",    "Image"},    //HashMap 中的 键名
new int[]{    R.id.text1,  R.id.text2, R.id.button, R.id.image})//分别对应 item 中控件 id,与上一个参数 的键名一一上下对应
{
//在这个重写的函数里设置 每个 item 中按钮的响应事件
@Override
public View getView(int position, View convertView,ViewGroup parent) {
final int p=position;
final View view=super.getView(position, convertView, parent);
Button button=(Button)view.findViewById(R.id.button);
button.setOnClickListener(new OnClickListener() {

@Override
public void onClick(View v) {

//警告框的写法
new AlertDialog.Builder(MainActivity.this)
.setTitle("More")
.setMessage("你选中了"+String.valueOf(p))
.setPositiveButton("确定", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
setTitle("点击了对话框上的确定按钮");
}
})
.setNeutralButton("中立" ,new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
setTitle("点击了对话框上的中立按钮");
}
})
.setNegativeButton("取消", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
setTitle("点击了对话框上的取消按钮");
}
})
.create()
.show();
}
});
return view;
}
};
//绑定适配器
listview.setAdapter(adapter);

//设置背景颜色选择器
listview.setSelector(R.drawable.on_item_selected);

//设置焦点响应问题    同时要将 item 中的焦点 focusable 设置为 false
listview.setDescendantFocusability(ViewGroup.FOCUS_BLOCK_DESCENDANTS);

//设置 item 的监听事件
listview.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {

//获得 item 里面的文本控件
TextView text1=(TextView)view.findViewById(R.id.text1);
Toast.makeText(getApplicationContext(), text1.getText().toString(), Toast.LENGTH_SHORT).show();
}
});

//设置显示的内容
setContentView(listview);
}
}

2    ListView 之每一个 item的布局item_layout.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="45dp"
android:orientation="horizontal"
tools:ignore="HardcodedText,NestedWeights" >
<ImageView
android:id="@+id/image"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_weight="4"
android:contentDescription="头像"
android:src="@drawable/ic_menu_send"/>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_weight="24"
android:orientation="vertical" >
<TextView
android:id="@+id/text1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:textColor="@color/blue"
android:text="王力宏"/>
<TextView
android:id="@+id/text2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textColor="@color/darkviolet"
android:layout_weight="1"
android:text="大城小爱"/>
</LinearLayout>
<Button
android:id="@+id/button"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:text="more"
android:layout_weight="1"
android:textColor="@color/darkorchid"
android:focusable="false"/>
</LinearLayout>

3    ListView 之 item 颜色选择器    on_item_selected.xml    （放在 drawable 文件夹里）

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android" >
<item   android:state_focused="false"
android:drawable="@android:color/black"/>
<item   android:state_focused="true"
android:drawable="@android:color/darker_gray"/>
</selector>

4    资源图片

5    颜色值  color.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
<color name="white">#FFFFFF</color>					<!--白色 -->
<color name="ivory">#FFFFF0</color>					<!--象牙色 -->
<color name="lightyellow">#FFFFE0</color>			<!--亮黄色 -->
<color name="yellow">#FFFF00</color>				<!--黄色 -->
<color name="snow">#FFFAFA</color>					<!--雪白色 -->
<color name="floralwhite">#FFFAF0</color>			<!--花白色 -->
<color name="lemonchiffon">#FFFACD</color>			<!--柠檬绸色 -->
<color name="cornsilk">#FFF8DC</color>				<!--米绸色 -->
<color name="seashell">#FFF5EE</color>				<!--海贝色 -->
<color name="lavenderblush">#FFF0F5</color>			<!--淡紫红 -->
<color name="papayawhip">#FFEFD5</color>			<!--番木色 -->
<color name="blanchedalmond">#FFEBCD</color>		<!--白杏色 -->
<color name="mistyrose">#FFE4E1</color>				<!--浅玫瑰色 -->
<color name="bisque">#FFE4C4</color>				<!--桔黄色 -->
<color name="moccasin">#FFE4B5</color>				<!--鹿皮色 -->
<color name="navajowhite">#FFDEAD</color>			<!--纳瓦白 -->
<color name="peachpuff">#FFDAB9</color>				<!--桃色 -->
<color name="gold">#FFD700</color>					<!--金色 -->
<color name="pink">#FFC0CB</color>					<!--粉红色 -->
<color name="lightpink">#FFB6C1</color>				<!--亮粉红色 -->
<color name="orange">#FFA500</color>				<!--橙色 -->
<color name="lightsalmon">#FFA07A</color>			<!--亮肉色 -->
<color name="darkorange">#FF8C00</color>			<!--暗桔黄色 -->
<color name="coral">#FF7F50</color>					<!--珊瑚色 -->
<color name="hotpink">#FF69B4</color>				<!--热粉红色 -->
<color name="tomato">#FF6347</color>				<!--西红柿色 -->
<color name="orangered">#FF4500</color>				<!--红橙色 -->
<color name="deeppink">#FF1493</color>				<!--深粉红色 -->
<color name="fuchsia">#FF00FF</color>				<!--紫红色 -->
<color name="magenta">#FF00FF</color>				<!--红紫色 -->
<color name="red">#FF0000</color>					<!--红色 -->
<color name="oldlace">#FDF5E6</color>				<!--老花色 -->
<color name="lightgoldenyellow">#FAFAD2</color>		<!--亮金黄色 -->
<color name="linen">#FAF0E6</color>					<!--亚麻色 -->
<color name="antiquewhite">#FAEBD7</color>			<!--古董白 -->
<color name="salmon">#FA8072</color>				<!--鲜肉色 -->
<color name="ghostwhite">#F8F8FF</color>			<!--幽灵白 -->
<color name="mintcream">#F5FFFA</color>				<!--薄荷色 -->
<color name="whitesmoke">#F5F5F5</color>			<!--烟白色 -->
<color name="beige">#F5F5DC</color>					<!--米色 -->
<color name="wheat">#F5DEB3</color>					<!--浅黄色 -->
<color name="sandybrown">#F4A460</color>			<!--沙褐色 -->
<color name="azure">#F0FFFF</color>					<!--天蓝色 -->
<color name="honeydew">#F0FFF0</color>				<!--蜜色 -->
<color name="aliceblue">#F0F8FF</color>				<!--艾利斯兰 -->
<color name="khaki">#F0E68C</color>					<!--黄褐色 -->
<color name="lightcoral">#F08080</color>			<!--亮珊瑚色 -->
<color name="palegoldenrod">#EEE8AA</color>			<!--苍麒麟色 -->
<color name="violet">#EE82EE</color>				<!--紫罗兰色 -->
<color name="darksalmon">#E9967A</color>			<!--暗肉色 -->
<color name="lavender">#E6E6FA</color>				<!--淡紫色 -->
<color name="lightcyan">#E0FFFF</color>				<!--亮青色 -->
<color name="burlywood">#DEB887</color>				<!--实木色 -->
<color name="plum">#DDA0DD</color>					<!--洋李色 -->
<color name="gainsboro">#DCDCDC</color>				<!--淡灰色 -->
<color name="crimson">#DC143C</color>				<!--暗深红色 -->
<color name="palevioletred">#DB7093</color>			<!--苍紫罗兰色-->
<color name="goldenrod">#DAA520</color>				<!--金麒麟色 -->
<color name="orchid">#DA70D6</color>				<!--淡紫色 -->
<color name="thistle">#D8BFD8</color>				<!--蓟色 -->
<color name="lightgray">#D3D3D3</color>				<!--亮灰色 -->
<color name="lightgrey">#D3D3D3</color>				<!--亮灰色 -->
<color name="tan">#D2B48C</color>					<!--茶色 -->
<color name="chocolate">#D2691E</color>				<!--巧可力色 -->
<color name="peru">#CD853F</color>					<!--秘鲁色 -->
<color name="indianred">#CD5C5C</color>				<!--印第安红 -->
<color name="mediumvioletred">#C71585</color>		<!--中紫罗兰色 -->
<color name="silver">#C0C0C0</color>				<!--银色 -->
<color name="darkkhaki">#BDB76B</color>				<!-- 暗黄褐色 -->
<color name="rosybrown">#BC8F8F</color>				<!--褐玫瑰红-->
<color name="mediumorchid">#BA55D3</color>			<!--中粉紫色 -->
<color name="darkgoldenrod">#B8860B</color>			<!--暗金黄色 -->
<color name="firebrick">#B22222</color>				<!--火砖色 -->
<color name="powderblue">#B0E0E6</color>			<!--粉蓝色 -->
<color name="lightsteelblue">#B0C4DE</color>		<!--亮钢兰色 -->
<color name="paleturquoise">#AFEEEE</color>			<!--苍宝石绿 -->
<color name="greenyellow">#ADFF2F</color>			<!--黄绿色 -->
<color name="lightblue">#ADD8E6</color>				<!--亮蓝色 -->
<color name="darkgray">#A9A9A9</color>				<!--暗灰色 -->
<color name="darkgrey">#A9A9A9</color>				<!--暗灰色 -->
<color name="brown">#A52A2A</color>					<!--褐色 -->
<color name="sienna">#A0522D</color>				<!--赭色 -->
<color name="darkorchid">#9932CC</color>			<!--暗紫色 -->
<color name="palegreen">#98FB98</color>				<!--苍绿色 -->
<color name="darkviolet">#9400D3</color>			<!--暗紫罗兰色 -->
<color name="mediumpurple">#9370DB</color>			<!--中紫色 -->
<color name="lightgreen">#90EE90</color>			<!--亮绿色 -->
<color name="darkseagreen">#8FBC8F</color>			<!--暗海兰色 -->
<color name="saddlebrown">#8B4513</color>			<!--重褐色 -->
<color name="darkmagenta">#8B008B</color>			<!--暗洋红 -->
<color name="darkred">#8B0000</color>				<!--暗红色 -->
<color name="blueviolet">#8A2BE2</color>			<!--紫罗兰蓝色-->
<color name="lightskyblue">#87CEFA</color>			<!--亮天蓝色-->
<color name="skyblue">#87CEEB</color>				<!--天蓝色 -->
<color name="gray">#808080</color>					<!--灰色 -->
<color name="grey">#808080</color>					<!--灰色 -->
<color name="olive">#808000</color>					<!--橄榄色 -->
<color name="purple">#800080</color>				<!--紫色 -->
<color name="maroon">#800000</color>				<!--粟色 -->
<color name="aquamarine">#7FFFD4</color>			<!--碧绿色 -->
<color name="chartreuse">#7FFF00</color>			<!--黄绿色 -->
<color name="lawngreen">#7CFC00</color>				<!--草绿色 -->
<color name="mediumslateblue">#7B68EE</color>		<!--中暗蓝色 -->
<color name="lightslategray">#778899</color>		<!--亮蓝灰 -->
<color name="lightslategrey">#778899</color>		<!--亮蓝灰 -->
<color name="slategray">#708090</color>				<!--灰石色 -->
<color name="slategrey">#708090</color>				<!--灰石色 -->
<color name="olivedrab">#6B8E23</color>				<!--深绿褐色 -->
<color name="slateblue">#6A5ACD</color>				<!--石蓝色 -->
<color name="dimgray">#696969</color>				<!--暗灰色 -->
<color name="dimgrey">#696969</color>				<!--暗灰色 -->
<color name="mediumaquamarine">#66CDAA</color>		<!--中绿色-->
<color name="cornflowerblue">#6495ED</color>		<!--菊兰色 -->
<color name="cadetblue">#5F9EA0</color>				<!--军兰色 -->
<color name="darkolivegreen">#556B2F</color>		<!--暗橄榄绿 -->
<color name="indigo">#4B0082</color>				<!--靛青色 -->
<color name="mediumturquoise">#48D1CC</color>		<!--中绿宝石-->
<color name="darkslateblue">#483D8B</color>			<!--暗灰蓝色 -->
<color name="steelblue">#4682B4</color>				<!--钢兰色 -->
<color name="royalblue">#4169E1</color>				<!--皇家蓝 -->
<color name="turquoise">#40E0D0</color>				<!--青绿色 -->
<color name="mediumseagreen">#3CB371</color>		<!--中海蓝 -->
<color name="limegreen">#32CD32</color>				<!--橙绿色 -->
<color name="darkslategray">#2F4F4F</color>			<!--暗瓦灰色 -->
<color name="darkslategrey">#2F4F4F</color>			<!--暗瓦灰色 -->
<color name="seagreen">#2E8B57</color>				<!--海绿色 -->
<color name="forestgreen">#228B22</color>			<!--森林绿 -->
<color name="lightseagreen">#20B2AA</color>			<!--亮海蓝色 -->
<color name="dodgerblue">#1E90FF</color>			<!--闪兰色 -->
<color name="midnightblue">#191970</color>			<!--中灰兰色 -->
<color name="aqua">#00FFFF</color>					<!--浅绿色 -->
<color name="cyan">#00FFFF</color>					<!--青色 -->
<color name="springgreen">#00FF7F</color>			<!--春绿色 -->
<color name="lime">#00FF00</color>					<!--酸橙色 -->
<color name="mediumspringgreen">#00FA9A</color>		<!--中春绿色 -->
<color name="darkturquoise">#00CED1</color>			<!--暗宝石绿 -->
<color name="deepskyblue">#00BFFF</color>			<!--深天蓝色 -->
<color name="darkcyan">#008B8B</color>				<!--暗青色 -->
<color name="teal">#008080</color>					<!--水鸭色 -->
<color name="green">#008000</color>					<!--绿色 -->
<color name="darkgreen">#006400</color>				<!--暗绿色 -->
<color name="blue">#0000FF</color>					<!--蓝色 -->
<color name="mediumblue">#0000CD</color>			<!--中兰色 -->
<color name="darkblue">#00008B</color>				<!--暗蓝色 -->
<color name="navy">#000080</color>					<!--海军色 -->
<color name="black">#000000</color>					<!--黑色 -->
</resources>

6    结果预览