本文实例讲述了Android编程实现带有单选按钮和复选按钮的dialog。分享给大家供大家参考,具体如下:
带有单选按钮的dialog:
代码语言:javascript复制package example.com.myapplication;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.widget.Toast;
public class MainActivity extends Activity {
//声明选中项变量
private int selectedCityIndex = 0;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//定义城市数组
final String[] arrayCity = new String[] { "杭州", "纽约", "威尼斯", "北海道" };
//实例化AlertDialog对话框
Dialog alertDialog = new AlertDialog.Builder(this)
.setTitle("你最喜欢哪个地方?") //设置标题
.setIcon(R.mipmap.ic_launcher) //设置图标
//设置对话框显示一个单选List,指定默认选中项,同时设置监听事件处理
.setSingleChoiceItems(arrayCity, 0, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
selectedCityIndex = which; //选中项的索引保存到选中项变量
}
})
//添加取消按钮并增加监听处理
.setNegativeButton("取消", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
}
})
//添加确定按钮并增加监听处理
.setPositiveButton("确认", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Toast.makeText(getApplication(), arrayCity[selectedCityIndex], Toast.LENGTH_SHORT).show();
}
})
.create();
alertDialog.show();
}
}
带有复选按钮的dialog代码:
代码语言:javascript复制package example.com.myapplication;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.widget.Toast;
public class MainActivity extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//定义运动数组
final String[] arraySport = new String[] { "足球", "篮球", "网球", "乒乓球" };
final boolean[] arraySportSelected = new boolean[] {false, false, false, false};
//实例化AlertDialog对话框
Dialog alertDialog = new AlertDialog.Builder(this)
.setTitle("你喜欢哪些运动?") //设置标题
.setIcon(R.mipmap.ic_launcher) //设置图标
//设置对话框显示一个复选List,指定默认选中项,同时设置监听事件处理
.setMultiChoiceItems(arraySport, arraySportSelected,
new DialogInterface.OnMultiChoiceClickListener() {
@Override
public void onClick(DialogInterface dialog, int which, boolean isChecked) {
arraySportSelected[which] = isChecked; //选中项的布尔真假保存到选中项变量
}
})
//添加取消按钮并增加监听处理
.setPositiveButton("确认", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
StringBuilder stringBuilder = new StringBuilder();
for (int i = 0; i < arraySportSelected.length; i ) {
if (arraySportSelected[i] == true){
stringBuilder.append(arraySport[i] "、");
}
}
Toast.makeText(getApplication(), stringBuilder.toString(), Toast.LENGTH_SHORT).show();
}
})
//添加确定按钮并增加监听处理
.setNegativeButton("取消", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
}
})
.create();
alertDialog.show();
}
}
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