最近在做项目，小组几个回了家。界面暂时没人做，用到自定义对话框只能临时去学。现在把对话框的相关整理。
<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="com.example.alertdialog.MainActivity" > <Button android:id="@+id/button1" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_alignParentTop="true" android:layout_centerHorizontal="true" android:text="显示AlertDialog对话框" /> <Button android:id="@+id/button2" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_below="@+id/button1" android:text="显示列表对话框" /> <Button android:id="@+id/button3" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_below="@+id/button2" android:text="显示单选列表对话框" /> <Button android:id="@+id/button4" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_below="@+id/button3" android:text="显示多选对话框" /> <Button android:id="@+id/button5" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_below="@+id/button4" android:layout_centerHorizontal="true" android:text="调用资源文件多选对话框" /></RelativeLayout>
package com.example.alertdialog;import android.app.Activity;import android.app.AlertDialog;import android.content.DialogInterface;import android.view.View.OnClickListener;import android.os.Bundle;import android.view.View;import android.widget.Button;import android.widget.Toast;public class MainActivity extends Activity { private Button button1; private Button button2; private final CharSequence[] items = {"广州","深圳","上海","北京"}; private Button button3; private Button button4; private Button button5; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); button1 = (Button) findViewById(R.id.button1); button2 = (Button) findViewById(R.id.button2); button3 = (Button) findViewById(R.id.button3); button4 = (Button) findViewById(R.id.button4); button5 = (Button) findViewById(R.id.button5); button1.setOnClickListener(new OnClickListener() { public void onClick(View view) { AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this); builder.setTitle("提示"); builder.setMessage("你确定要删除吗!"); builder.setIcon(R.drawable.ic_launcher); builder.setPositiveButton("确定", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int arg1) { // 让对话框消失 dialog.dismiss(); } }); builder.setNegativeButton("取消", new DialogInterface.OnClickListener() { public void onClick(DialogInterface arg0, int arg1) { // TODO Auto-generated method stub } }); builder.setNeutralButton("忽略", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface arg0, int arg1) { // TODO Auto-generated method stub //忽略用户操作，作用和取消一样 } }); AlertDialog alertDialog = builder.create(); alertDialog.show(); } }); button2.setOnClickListener(new OnClickListener() { @Override public void onClick(View arg0) { // TODO Auto-generated method stub AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this); builder.setTitle("提示"); //不能设置setMessage的内容，不然会覆盖原来item的值 //在OnClickListener前要加DialogInterface，不然会报错 builder.setItems(items, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface arg0, int index) { //item[index]不能转化为String,转化为CharSequence就行了 CharSequence select_item = items[index]; Toast.makeText(MainActivity.this, "你选择了城市"+select_item, 1).show(); } }); AlertDialog alertDialog = builder.create(); alertDialog.show(); } }); button3.setOnClickListener(new OnClickListener() { @Override public void onClick(View arg0) { // TODO Auto-generated method stub AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this); builder.setTitle("请选择以下城市"); builder.setIcon(R.drawable.ic_launcher); /* * 第一个参数：显示在对话框中供选择列表 * 第二个参数：默认选择的值，-1表示一个都没选 * 第三个参数：监听器 */ builder.setSingleChoiceItems(items, -1, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub CharSequence select_item = items[which]; Toast.makeText(MainActivity.this, "-->>"+select_item, 1).show(); dialog.dismiss(); } }); AlertDialog alertDialog = builder.create(); alertDialog.show(); } }); button4.setOnClickListener(new OnClickListener() { @Override public void onClick(View arg0) { AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this); builder.setTitle("请选择以下城市"); /* * 第一个参数：供选择多选列表 * 第二个参数：boolean类型的数组，表示选中的项;如设置为null,表示没有选项默认被选中 * 第三个参数：不用说，监听器 */ builder.setMultiChoiceItems(items, new boolean[]{false,false,true,false}, new DialogInterface.OnMultiChoiceClickListener() { @Override public void onClick(DialogInterface arg0, int arg1, boolean ischecked) { // TODO Auto-generated method stub } }); builder.setPositiveButton("确定", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface arg0, int arg1) { // 直接获取选择的值 } }); AlertDialog alertDialog = builder.create(); alertDialog.show(); } }); //其实是button4的另一种写法 button5.setOnClickListener(new OnClickListener() { @Override public void onClick(View arg0) { AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this); builder.setTitle("请选择以下城市"); //获取选择值:使用StringBuffer追加，中间用逗号分隔开来 builder.setMultiChoiceItems(R.array.city, new boolean[]{false,false,true,false}, new DialogInterface.OnMultiChoiceClickListener() { public void onClick(DialogInterface arg0, int arg1, boolean arg2) { // TODO Auto-generated method stub } }); builder.setPositiveButton("确定", new DialogInterface.OnClickListener() { public void onClick(DialogInterface arg0, int arg1) { // 获取选择的值 } }); AlertDialog alertDialog = builder.create(); alertDialog.show(); } }); }}
