Android apiDemo 学习——对话框AlertDialogSamples
版权声明：本文为博主原创文章，未经博主同意不得转载。 https://blog.csdn.net/zpf8861/article/details/31423049
注意：该代码仅仅适用于当次简单调用对话框。当遇到用到bundle多次调用或者传递信息是须要借助onPrepareDialog，可是这个方案已经不被推荐。
该activity代码里面实现了多种经常使用的对话框。android的对话框常见的能够有两种实现方式：
AlertDialog方式
Dialog样式的activity方式
该代码实现的是AlertDialog。生命周期存在于调用的activity。
在开发中。常见的对话框包含几个部分，标题，正文和按钮，在实现对话框时候，能够非常easy调用api实现。
new AlertDialog.Builder(AlertDialogSamples.this)
.setIconAttribute(android.R.attr.alertDialogIcon)
.setTitle(R.string.alert_dialog_two_buttons_title)
.setPositiveButton(R.string.alert_dialog_ok, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
/* User clicked OK so do some stuff */
}
})
.setNegativeButton(R.string.alert_dialog_cancel, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
/* User clicked Cancel so do some stuff */
}
})
.show（）;注意：以上方法尽管能够实现对话框。可是调用show（）方法会有可能产生内存泄漏，及当其它进程销毁该activity时候。具体内容会在后面介绍。
因此我们看到demo中使用的是在onCreateDialog(int id)中生成，而使用showDialog(int id)方法调用。
下面是程序代码，当中set***开头的方法是设置对话框样式的方法，非常easy理解，不赘述。
public class AlertDialogSamples extends Activity {
private static final int DIALOG_YES_NO_MESSAGE = 1;
private static final int DIALOG_YES_NO_LONG_MESSAGE = 2;
private static final int DIALOG_LIST = 3;
private static final int DIALOG_PROGRESS = 4;
private static final int DIALOG_SINGLE_CHOICE = 5;
private static final int DIALOG_MULTIPLE_CHOICE = 6;
private static final int DIALOG_TEXT_ENTRY = 7;
private static final int DIALOG_MULTIPLE_CHOICE_CURSOR = 8;
private static final int DIALOG_YES_NO_ULTRA_LONG_MESSAGE = 9;
private static final int DIALOG_YES_NO_OLD_SCHOOL_MESSAGE = 10;
private static final int DIALOG_YES_NO_HOLO_LIGHT_MESSAGE = 11;
private static final int MAX_PROGRESS = 100;
private ProgressDialog mProgressDialog;
private int mProgress;
private Handler mProgressHandler;
@Override
protected Dialog onCreateDialog(int id) {
switch (id) {
case DIALOG_YES_NO_MESSAGE:
return new AlertDialog.Builder(AlertDialogSamples.this)
.setIconAttribute(android.R.attr.alertDialogIcon)
.setTitle(R.string.alert_dialog_two_buttons_title)
.setPositiveButton(R.string.alert_dialog_ok, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
/* User clicked OK so do some stuff */
}
})
.setNegativeButton(R.string.alert_dialog_cancel, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
/* User clicked Cancel so do some stuff */
}
})
.create();
case DIALOG_YES_NO_OLD_SCHOOL_MESSAGE:
return new AlertDialog.Builder(AlertDialogSamples.this, AlertDialog.THEME_TRADITIONAL)
.setIconAttribute(android.R.attr.alertDialogIcon)
.setTitle(R.string.alert_dialog_two_buttons_title)
.setPositiveButton(R.string.alert_dialog_ok, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
}
})
.setNegativeButton(R.string.alert_dialog_cancel, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
}
})
.create();
case DIALOG_YES_NO_HOLO_LIGHT_MESSAGE:
return new AlertDialog.Builder(AlertDialogSamples.this, AlertDialog.THEME_HOLO_LIGHT)
.setIconAttribute(android.R.attr.alertDialogIcon)
.setTitle(R.string.alert_dialog_two_buttons_title)
.setPositiveButton(R.string.alert_dialog_ok, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
}
})
.setNegativeButton(R.string.alert_dialog_cancel, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
}
})
.create();
case DIALOG_YES_NO_LONG_MESSAGE:
return new AlertDialog.Builder(AlertDialogSamples.this)
.setIconAttribute(android.R.attr.alertDialogIcon)
.setTitle(R.string.alert_dialog_two_buttons_msg)
.setMessage(R.string.alert_dialog_two_buttons2_msg)
.setPositiveButton(R.string.alert_dialog_ok, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
/* User clicked OK so do some stuff */
}
})
.setNeutralButton(R.string.alert_dialog_something, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
/* User clicked Something so do some stuff */
}
})
.setNegativeButton(R.string.alert_dialog_cancel, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
/* User clicked Cancel so do some stuff */
}
})
.create();
case DIALOG_YES_NO_ULTRA_LONG_MESSAGE:
return new AlertDialog.Builder(AlertDialogSamples.this)
.setIconAttribute(android.R.attr.alertDialogIcon)
.setTitle(R.string.alert_dialog_two_buttons_msg)
.setMessage(R.string.alert_dialog_two_buttons2ultra_msg)
.setPositiveButton(R.string.alert_dialog_ok, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
/* User clicked OK so do some stuff */
}
})
.setNeutralButton(R.string.alert_dialog_something, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
/* User clicked Something so do some stuff */
}
})
.setNegativeButton(R.string.alert_dialog_cancel, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
/* User clicked Cancel so do some stuff */
}
})
.create();
case DIALOG_LIST:
return new AlertDialog.Builder(AlertDialogSamples.this)
.setTitle(R.string.select_dialog)
.setItems(R.array.select_dialog_items, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
/* User clicked so do some stuff */
String[] items = getResources().getStringArray(R.array.select_dialog_items);
new AlertDialog.Builder(AlertDialogSamples.this)
.setMessage("You selected: " + which + " , " + items[which])
.show();
}
})
.create();
case DIALOG_PROGRESS:
mProgressDialog = new ProgressDialog(AlertDialogSamples.this);
mProgressDialog.setIconAttribute(android.R.attr.alertDialogIcon);
mProgressDialog.setTitle(R.string.select_dialog);
mProgressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
mProgressDialog.setMax(MAX_PROGRESS);
mProgressDialog.setButton(DialogInterface.BUTTON_POSITIVE,
getText(R.string.alert_dialog_hide), new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
/* User clicked Yes so do some stuff */
}
});
mProgressDialog.setButton(DialogInterface.BUTTON_NEGATIVE,
getText(R.string.alert_dialog_cancel), new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
/* User clicked No so do some stuff */
}
});
return mProgressDialog;
case DIALOG_SINGLE_CHOICE:
return new AlertDialog.Builder(AlertDialogSamples.this)
.setIconAttribute(android.R.attr.alertDialogIcon)
.setTitle(R.string.alert_dialog_single_choice)
.setSingleChoiceItems(R.array.select_dialog_items2, 0, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
/* User clicked on a radio button do some stuff */
}
})
.setPositiveButton(R.string.alert_dialog_ok, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
/* User clicked Yes so do some stuff */
}
})
.setNegativeButton(R.string.alert_dialog_cancel, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
/* User clicked No so do some stuff */
}
})
.create();
case DIALOG_MULTIPLE_CHOICE:
return new AlertDialog.Builder(AlertDialogSamples.this)
.setIcon(R.drawable.ic_popup_reminder)
.setTitle(R.string.alert_dialog_multi_choice)
.setMultiChoiceItems(R.array.select_dialog_items3,
new boolean[]{false, true, false, true, false, false, false},
new DialogInterface.OnMultiChoiceClickListener() {
public void onClick(DialogInterface dialog, int whichButton,
boolean isChecked) {
/* User clicked on a check box do some stuff */
}
})
.setPositiveButton(R.string.alert_dialog_ok,
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
/* User clicked Yes so do some stuff */
}
})
.setNegativeButton(R.string.alert_dialog_cancel,
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
/* User clicked No so do some stuff */
}
})
.create();
case DIALOG_MULTIPLE_CHOICE_CURSOR:
String[] projection = new String[] {
ContactsContract.Contacts._ID,
ContactsContract.Contacts.DISPLAY_NAME,
ContactsContract.Contacts.SEND_TO_VOICEMAIL
};
Cursor cursor = managedQuery(ContactsContract.Contacts.CONTENT_URI,
projection, null, null, null);
return new AlertDialog.Builder(AlertDialogSamples.this)
.setIcon(R.drawable.ic_popup_reminder)
.setTitle(R.string.alert_dialog_multi_choice_cursor)
.setMultiChoiceItems(cursor,
ContactsContract.Contacts.SEND_TO_VOICEMAIL,
ContactsContract.Contacts.DISPLAY_NAME,
new DialogInterface.OnMultiChoiceClickListener() {
public void onClick(DialogInterface dialog, int whichButton,
boolean isChecked) {
Toast.makeText(AlertDialogSamples.this,
"Readonly Demo Only - Data will not be updated",
Toast.LENGTH_SHORT).show();
}
})
.create();
case DIALOG_TEXT_ENTRY:
// This example shows how to add a custom layout to an AlertDialog
LayoutInflater factory = LayoutInflater.from(this);
final View textEntryView = factory.inflate(R.layout.alert_dialog_text_entry, null);
return new AlertDialog.Builder(AlertDialogSamples.this)
.setIconAttribute(android.R.attr.alertDialogIcon)
.setTitle(R.string.alert_dialog_text_entry)
.setView(textEntryView)
.setPositiveButton(R.string.alert_dialog_ok, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
/* User clicked OK so do some stuff */
}
})
.setNegativeButton(R.string.alert_dialog_cancel, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
/* User clicked cancel so do some stuff */
}
})
.create();
}
return null;
}
/**
* Initialization of the Activity after it is first created. Must at least
* call {@link android.app.Activity#setContentView(int)} to
* describe what is to be displayed in the screen.
*/
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.alert_dialog);
/* Display a text message with yes/no buttons and handle each message as well as the cancel action */
Button twoButtonsTitle = (Button) findViewById(R.id.two_buttons);
twoButtonsTitle.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
showDialog(DIALOG_YES_NO_MESSAGE);
}
});
/* Display a long text message with yes/no buttons and handle each message as well as the cancel action */
Button twoButtons2Title = (Button) findViewById(R.id.two_buttons2);
twoButtons2Title.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
showDialog(DIALOG_YES_NO_LONG_MESSAGE);
}
});
/* Display an ultra long text message with yes/no buttons and handle each message as well as the cancel action */
Button twoButtons2UltraTitle = (Button) findViewById(R.id.two_buttons2ultra);
twoButtons2UltraTitle.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
showDialog(DIALOG_YES_NO_ULTRA_LONG_MESSAGE);
}
});
/* Display a list of items */
Button selectButton = (Button) findViewById(R.id.select_button);
selectButton.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
showDialog(DIALOG_LIST);
}
});
/* Display a custom progress bar */
Button progressButton = (Button) findViewById(R.id.progress_button);
progressButton.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
showDialog(DIALOG_PROGRESS);
mProgress = 0;
mProgressDialog.setProgress(0);
mProgressHandler.sendEmptyMessage(0);
}
});
/* Display a radio button group */
Button radioButton = (Button) findViewById(R.id.radio_button);
radioButton.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
showDialog(DIALOG_SINGLE_CHOICE);
}
});
/* Display a list of checkboxes */
Button checkBox = (Button) findViewById(R.id.checkbox_button);
checkBox.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
showDialog(DIALOG_MULTIPLE_CHOICE);
}
});
/* Display a list of checkboxes, backed by a cursor */
Button checkBox2 = (Button) findViewById(R.id.checkbox_button2);
checkBox2.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
showDialog(DIALOG_MULTIPLE_CHOICE_CURSOR);
}
});
/* Display a text entry dialog */
Button textEntry = (Button) findViewById(R.id.text_entry_button);
textEntry.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
showDialog(DIALOG_TEXT_ENTRY);
}
});
/* Two points, in the traditional theme */
Button twoButtonsOldSchoolTitle = (Button) findViewById(R.id.two_buttons_old_school);
twoButtonsOldSchoolTitle.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
showDialog(DIALOG_YES_NO_OLD_SCHOOL_MESSAGE);
}
});
/* Two points, in the light holographic theme */
Button twoButtonsHoloLightTitle = (Button) findViewById(R.id.two_buttons_holo_light);
twoButtonsHoloLightTitle.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
showDialog(DIALOG_YES_NO_HOLO_LIGHT_MESSAGE);
}
});
mProgressHandler = new Handler() {
@Override
public void handleMessage(Message msg) {
super.handleMessage(msg);
if (mProgress >= MAX_PROGRESS) {
mProgressDialog.dismiss();
} else {
mProgress++;
mProgressDialog.incrementProgressBy(1);
mProgressHandler.sendEmptyMessageDelayed(0, 100);
}
}
};
}
}开发人员能够使用该代码依次看一看每一个对话框是什么样子的
该代码实现的仅仅是简单的对话框。对于多次调用或者更新信息等动态信息的对话框是有问题的，由于。他的回调方法仅仅能调用一次，以后多次调用时的数据都是第一次的，不适用于Bundle传递数据的使用场景。
Android apiDemo 学习——对话框AlertDialogSamples的更多相关文章
- [android开发篇] android apidemo 学习网址
http://www.2cto.com/special/ApiDemos/ApiDemos/type-160-10.html
- 9.Android之日期对话框DatePicker控件学习
设置日期对话框在手机经常用到,今天来学习下. 首先设置好布局文件:如图 xml对应代码 <?xml version="1.0" encoding="utf-8&qu ...
- 【起航计划 020】2015 起航计划 Android APIDemo的魔鬼步伐 19 App->Dialog Dialog样式
这个例子的主Activity定义在AlertDialogSamples.java 主要用来介绍类AlertDialog的用法,AlertDialog提供的功能是多样的: 显示消息给用户,并可提供一到三 ...
- Android开发学习总结(一)——搭建最新版本的Android开发环境
Android开发学习总结(一)——搭建最新版本的Android开发环境(转) 最近由于工作中要负责开发一款Android的App,之前都是做JavaWeb的开发,Android开发虽然有所了解,但是 ...
- Android开发学习之路--Activity之初体验
环境也搭建好了,android系统也基本了解了,那么接下来就可以开始学习android开发了,相信这么学下去肯定可以把android开发学习好的,再加上时而再温故下linux下的知识,看看androi ...
- Android开发学习总结——搭建最新版本的Android开发环境
原文出自:https://www.cnblogs.com/xdp-gacl/p/4322165.html#undefined 最近由于工作中要负责开发一款Android的App,之前都是做JavaWe ...
- Android JNI学习(二)——实战JNI之“hello world”
本系列文章如下: Android JNI(一)——NDK与JNI基础 Android JNI学习(二)——实战JNI之“hello world” Android JNI学习(三)——Java与Nati ...
- Android:日常学习笔记(8)———探究UI开发(2)
Android:日常学习笔记(8)———探究UI开发(2) 对话框 说明: 对话框是提示用户作出决定或输入额外信息的小窗口. 对话框不会填充屏幕,通常用于需要用户采取行动才能继续执行的模式事件. 提示 ...
- Android:日常学习笔记(6)——探究活动（3）
Android:日常学习笔记(6)——探究活动(3) 活动的生命周期 返回栈 Android中的活动是可以叠加的,我们每启动一个新活动,就会覆盖在原来的活动上,点击Back以后销毁最上面的活动,下面的 ...
随机推荐
- CSS div内放长英文字母或长数字自动换行 CSS一行排不下自动打断换行
添加css word-wrap:break-word 解释:使用break-word时,是将强制换行. 兼容各版本IE浏览器,兼容谷歌浏览器.
- shell使用reposync同步仓库
- java 三元运算符
/* 一元运算符:只需要一个数据就可以进行操作的运算符 如:取反! 自增++ 自减 -- 二元运算符:需要两个数据才可以进行操作的运算符 如:加法+ 赋值= 三元运算符: 需要三个数据才可以进行操作的 ...
- ubuntu oracle数据库18c安装
一.官网下载linux两个zip包 二.byqKx8a2tWcgBHb
- OpenCV常用基本处理函数（1）读写
图像的基本操作 cv.imread() 读取图片 cv.imshow() 显示图片 cv2.imwrite() 保存图像 使用摄像头捕获实时图像 OpenCV 为这中应用提供了 ...
- 在windows下使用secure crt传文件到linux的主目录下
SECURT CRT上传文件 使用secure crt连接到Linux上 通过alt+p打开sftp服务 使用put D:\视觉\代码\ch.10.zip 即可传输完成 进入linux直接在主目录下可 ...
- 【leetcode】662. Maximum Width of Binary Tree
题目如下: Given a binary tree, write a function to get the maximum width of the given tree. The width of ...
- shell快速入门
$? 表示上一个命令退出的状态,0表示执行正常,不等于0表示执行不正常. $$ 表示当前进程编号 $ 表示当前脚本名称 $# 表示参数的个数,常用于循环 $*和$@ 都表示参数列表 $n 表示n位置的 ...
- Spring解决循环依赖
1.Spring解决循环依赖 什么是循环依赖:比如A引用B,B引用C,C引用A,它们最终形成一个依赖环. 循环依赖有两种 1.构造器循环依赖 构造器注入导致的循环依赖,Spring是无法解决的,只能抛 ...
- tcp和udp得区别
TCP(Transmission Control Protocol 传输控制协议)是一种面向连接的.可靠的.基于字节流的传输层通信协议 UDP 是User Datagram Protocol,即 用户 ...