对话框1

2019独角兽企业重金招聘Python工程师标准>>>

AlertDialog	警告框应用最广功能最丰富
ProgressDialog	进度对话框只是对进度条的封装
DatePickerDialog	日期选择对话框
TimePickerDialog	时间选择对话框

AlertDialog提供了一些方法来生成4种与定义对话框&＃xff1a;

带消息、带N个按钮的提示对话框
带列表、带N个按钮的列表对话框
带多个单选列表项&＃xff0c;带N个按钮的对话框
带多个多选列表项&＃xff0c;带N个按钮的对话框

使用AlertDialog创建的步骤大致为&＃xff1a;

创建AlertDialog.Builder对象&＃xff0c;该对象是AlertDialog的创建器
调用AlertDialog.Builder的方法为对话框设置图标、标题、内容等
调用AlertDialog.Builder的create()创建AlertDialog对话框
调用AlertDialog的show()显示对话框

setMultiChoiceItems(CharSequence[] items,boolean[] checkedItens,DialogInterface.OnMulti choiceClickListener listener)创建多选列表对话框

setSingleChoiceItems(CharSequence[] items,int checkedItem,DialogInterface.OnMulti choiceClickListener listener)创建单选列表对话框

setAdapter(ListAdapter adapter,DialogInterface.OnClickListener listener)创建根据ListAdapter提供列表项的列表对话框

setItems(int itemsId,DialogInterface.OnClickListener listener)创建普通列表对话框

提示对话框

xml

MainActivity

package org.crazyit.dialog;import android.app.Activity; import android.app.AlertDialog; import android.app.Dialog; import android.app.AlertDialog.Builder;import android.content.DialogInterface; import android.content.DialogInterface.OnClickListener; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.EditText;/*** Description:* site: crazyit.org * Copyright (C), 2001-2012, Yeeku.H.Lee* This program is protected by copyright laws.* Program Name:* Date:* &＃64;author Yeeku.H.Lee kongyeeku&＃64;163.com* &＃64;version 1.0*/ public class DialogTest extends Activity {&＃64;Overridepublic void onCreate(Bundle savedInstanceState){super.onCreate(savedInstanceState);setContentView(R.layout.main);Button bn &＃61; (Button)findViewById(R.id.bn01);//定义一个AlertDialog.Builder对象final Builder builder &＃61; new AlertDialog.Builder(this);//为按钮绑定事件监听器bn.setOnClickListener(new View.OnClickListener(){&＃64;Overridepublic void onClick(View source){// 设置对话框的图标builder.setIcon(R.drawable.tools);// 设置对话框的标题builder.setTitle("自定义普通对话框");// 设置对话框显示的内容builder.setMessage("一个简单的提示对话框");// 为对话框设置一个“确定”按钮builder.setPositiveButton("确定"//为列表项的单击事件设置监听器, new OnClickListener(){&＃64;Overridepublic void onClick(DialogInterface dialog, int which){EditText show &＃61; (EditText) findViewById(R.id.show);// 设置EditText内容show.setText("用户单击了“确定”按钮&＃xff01;");}});// 为对话框设置一个“取消”按钮builder.setNegativeButton("取消", new OnClickListener(){&＃64;Overridepublic void onClick(DialogInterface dialog, int which){EditText show &＃61; (EditText) findViewById(R.id.show);// 设置EditText内容show.setText("用户单击了“取消”按钮&＃xff01;");}});//创建、并显示对话框builder.create().show();}});} }

通过setItems方法建立普通列表对话框

xml

MainActivity

package org.crazyit.dialog;import android.app.Activity; import android.app.AlertDialog; import android.app.Dialog; import android.app.AlertDialog.Builder; import android.content.DialogInterface; import android.content.DialogInterface.OnClickListener; import android.graphics.Color; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.EditText; import android.widget.TextView;/*** Description:* site: crazyit.org * Copyright (C), 2001-2012, Yeeku.H.Lee* This program is protected by copyright laws.* Program Name:* Date:* &＃64;author Yeeku.H.Lee kongyeeku&＃64;163.com* &＃64;version 1.0*/ public class ListDialog extends Activity { &＃64;Overridepublic void onCreate(Bundle savedInstanceState){super.onCreate(savedInstanceState);setContentView(R.layout.main);Button bn &＃61; (Button)findViewById(R.id.bn);final Builder b &＃61; new AlertDialog.Builder(this);//为按钮绑定事件监听器bn.setOnClickListener(new View.OnClickListener(){&＃64;Overridepublic void onClick(View source){//设置对话框的图标b.setIcon(R.drawable.tools);//设置对话框的标题b.setTitle("简单列表对话框");//为对话框设置多个列表b.setItems(new String[] {"红色" , "绿色" , "蓝色"}//为按钮设置监听器, new OnClickListener() {//该方法的which参数代表用户单击了那个列表项&＃64;Overridepublic void onClick(DialogInterface dialog, int which) {TextView show &＃61; (TextView)findViewById(R.id.show);//which代表哪个列表项被单击了switch(which){case 0:show.setBackgroundColor(Color.RED);break;case 1:show.setBackgroundColor(Color.GREEN);break;case 2:show.setBackgroundColor(Color.BLUE);break; } }});//创建、并显示对话框b.create().show(); }});} }

通过setSingleChoiceItems创建单选列表对话框

xml

MainAcitivity

package org.crazyit.dialog;import android.app.Activity; import android.app.AlertDialog; import android.app.Dialog; import android.app.AlertDialog.Builder; import android.content.DialogInterface; import android.content.DialogInterface.OnClickListener; import android.graphics.Color; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.EditText; import android.widget.TextView;/*** Description:* site: crazyit.org * Copyright (C), 2001-2012, Yeeku.H.Lee* This program is protected by copyright laws.* Program Name:* Date:* &＃64;author Yeeku.H.Lee kongyeeku&＃64;163.com* &＃64;version 1.0*/ public class SingleChoiceDialog extends Activity {final int SINGLE_DIALOG &＃61; 0x113;&＃64;Overridepublic void onCreate(Bundle savedInstanceState){super.onCreate(savedInstanceState);setContentView(R.layout.main);Button bn &＃61; (Button)findViewById(R.id.bn);//为按钮绑定事件监听器bn.setOnClickListener(new View.OnClickListener(){&＃64;Overridepublic void onClick(View source){//显示对话框showDialog(SINGLE_DIALOG); }});}//重写onCreateDialog方法创建对话框&＃64;Overridepublic Dialog onCreateDialog(int id, Bundle state){//判断需要生成哪种类型的对话框switch (id){case SINGLE_DIALOG:Builder b &＃61; new AlertDialog.Builder(this);// 设置对话框的图标b.setIcon(R.drawable.tools);// 设置对话框的标题b.setTitle("单选列表对话框");// 为对话框设置多个列表b.setSingleChoiceItems(new String[]{ "红色", "绿色", "蓝色" }// 默认选中第二项, 1//为列表项的单击事件设置监听器, new OnClickListener(){&＃64;Overridepublic void onClick(DialogInterface dialog,int which){TextView show &＃61; (TextView) findViewById(R.id.show);// which代表哪个列表项被单击了switch (which){//修改文本框的背景色case 0:show.setBackgroundColor(Color.RED);break;case 1:show.setBackgroundColor(Color.GREEN);break;case 2:show.setBackgroundColor(Color.BLUE);break;}}});// 添加一个“确定”按钮&＃xff0c;用于关闭该对话框b.setPositiveButton("确定", null);// 创建对话框return b.create();}return null;} }