Android 自定义对话框
package com.alertdialog;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import android.os.Bundle;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.AlertDialog.Builder;
import android.app.Dialog;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.graphics.Color;
import android.view.Menu;
import android.view.View;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.SimpleAdapter;
import android.widget.TextView;
/********************************
* 创建列表对话框 List<Map<String,Object>> 的使用 。 simpleAdapter的使用 showDialog()
********************************/
public class MainActivity extends Activity {
private TextView textView;
private Builder builder;
final int LIST_DIALOG = 0X113;
private String[] names = new String[] { "神族", "人族", "虫族", };
private int images[] = new int[] { R.drawable.icon1, R.drawable.icon2,
R.drawable.icon3, };
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
// 创建一个AlertDialog.Builder对象
builder = new AlertDialog.Builder(this);
textView = (TextView) findViewById(R.id.textView);
}
public Dialog onCreateDialog(int id, Bundle state) {
switch (id) {
case LIST_DIALOG:
// 为对话框设置图标
builder.setIcon(R.drawable.icon1);
builder.setTitle("自定义对话框");
// 创建一个List集合，List的元素是Map
List<Map<String, Object>> listItems = new ArrayList<Map<String, Object>>();
for (int i = 0; i < names.length; i++) {
Map<String, Object> listItem = new HashMap<String, Object>();
listItem.put("header", images[i]);
listItem.put("personName", names[i]);
listItems.add(listItem);
}
// 创建一个simple 第三个参数是定义列表项的布局文件的资源id 注意后两个参数的对应
// personName 对应的键值要放到text中，header对应的键值要放到header中 对应为文本框和ImageView
SimpleAdapter simpleAdapter = new SimpleAdapter(this, listItems,
R.layout.listitem, new String[] { "personName", "header" },
new int[] { R.id.text, R.id.header });
builder.setAdapter(simpleAdapter,
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
textView.setText("最擅长的种族为：" + names[which]);
}
});
// 用于关闭对话框
return builder.create();
}
return null;
}
// 实现按钮的事件
public void onButtonClick(View v) {
// 参数是调对话框的唯一标识
showDialog(LIST_DIALOG);
}
@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;
}
}
man.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"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<TextView
android:id="@+id/textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/hello_world" />
<Button
android:id="@+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/textView"
android:text="显示对话框"
android:onClick="onButtonClick" />
</RelativeLayout>
listitem.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="horizontal" >
<TextView
android:id="@+id/text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1" />
<ImageView
android:id="@+id/header"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
