本文实例讲述了Android之复选框对话框用法。分享给大家供大家参考。具体如下:
main.xml布局文件
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="fill_parent"
android:layout_height="fill_parent">
<EditText android:text=""
android:id="@+id/editText"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:editable="false"
android:cursorVisible="false" />
<Button android:text="显示复选框对话框"
android:id="@+id/button"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
</LinearLayout>
array.xml数组
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string-array name="hobby">
<item>游泳</item>
<item>打篮球</item>
<item>登山</item>
</string-array>
</resources>
AlertActivity类
package com.ljq.dialog;
import android.app.Activity;
import android.app.Dialog;
import android.app.AlertDialog.Builder;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
public class AlertDialog extends Activity {
private EditText editText;
private final static int DIALOG=1;
boolean[] flags=new boolean[]{false,false,false};//初始复选情况
String[] items=null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
items=getResources().getStringArray(R.array.hobby);
editText=(EditText)findViewById(R.id.editText);
Button button = (Button) findViewById(R.id.button);
button.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// 显示对话框
showDialog(DIALOG);
}
});
}
@Override
protected Dialog onCreateDialog(int id) {
Dialog dialog=null;
switch (id) {
case DIALOG:
Builder builder=new android.app.AlertDialog.Builder(this);
//设置对话框的图标
builder.setIcon(R.drawable.header);
//设置对话框的
builder.setTitle("复选框对话框");
builder.setMultiChoiceItems(R.array.hobby, flags, new DialogInterface.OnMultiChoiceClickListener(){
public void onClick(DialogInterface dialog, int which, boolean isChecked) {
flags[which]=isChecked;
String result = "您选择了:";
for (int i = 0; i < flags.length; i++) {
if(flags[i]){
result=result+items[i]+"、";
}
}
editText.setText(result.substring(0, result.length()-1));
}
});
//添加一个确定按钮
builder.setPositiveButton(" 确 定 ", new DialogInterface.OnClickListener(){
public void onClick(DialogInterface dialog, int which) {
}
});
//创建一个复选框对话框
dialog=builder.create();
break;
}
return dialog;
}
}
运行结果:
希望本文所述对大家的Android程序设计有所帮助。
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