Context context = getApplicationContext();
        CharSequence text = "have a toast thank you ,you've got it!";
        int duration = Toast.LENGTH_SHORT;

        Toast toast = Toast.makeText(context, text, duration);
        toast.show();

1. Get a reference to the NotificationManager:

   String ns = Context.NOTIFICATION_SERVICE;
   
       NotificationManager mNotificationManager = (NotificationManager) getSystemService(ns);

2. Instantiate the Notification:

   int icon = R.drawable.notification_icon;
   
       CharSequence tickerText = "Hello";
   
       long when = System.currentTimeMillis();
   
       
   
       Notification notification = new Notification(icon, tickerText, when);

3. Define the Notification's expanded message and Intent:

   Context context = getApplicationContext();
   
       CharSequence contentTitle = "My notification";
   
       CharSequence contentText = "Hello World!";
   
       Intent notificationIntent = new Intent(this, MyClass.class);
   
       PendingIntent contentIntent = PendingIntent.getActivity(this, 0, notificationIntent, 0);
   
       
   
       notification.setLatestEventInfo(context, contentTitle, contentText, contentIntent);

4. Pass the Notification to the NotificationManager:

   private static final int HELLO_ID = 1;
   
       
   
       mNotificationManager.notify(HELLO_ID, notification);

   That's it. Your user has now been notified.

發(fā)送短信相當(dāng)?shù)暮?jiǎn)單，只需要幾行代碼，如下：

import android.telephony.gsm.SmsManager;
import android.app.PendingIntent;
......
SmsManager sms = SmsManager.getDefault();
PendingIntent pi = PendingIntent.getBroadcast(this, 0, new Intent(), 0);
sms.sendTextMessage(phoneNumber, null, MsgStr, pi, null);

其中參數(shù)phoneNumber和MsgStr均是String類型，表示接收方的電話號(hào)碼和短信內(nèi)容

接收短信相對(duì)而言麻煩一些，需要使用全局的接收類BroadcastReceiver，完整代碼如下：

package com.hello.db;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.telephony.gsm.SmsMessage;
import android.widget.Toast;

public class MessageDemo extends BroadcastReceiver {
    private static final String strACT = "android.provider.Telephony.SMS_RECEIVED";
@Override
public void onReceive(Context context, Intent intent) {
if (intent.getAction().equals(strACT)) {
StringBuilder sb = new StringBuilder();
Bundle bundle = intent.getExtras();
if (bundle != null) {
Object[] pdus = (Object[]) bundle.get("pdus");
SmsMessage[] msg = new SmsMessage[pdus.length];
for (int i = 0; i < pdus.length; i++) {
msg[i] = SmsMessage.createFromPdu((byte[]) pdus[i]);
}
for (SmsMessage currMsg : msg) {
sb.append("From:");
sb.append(currMsg.getDisplayOriginatingAddress());
sb.append("\nMessage:");
sb.append(currMsg.getDisplayMessageBody());
}
}
Toast.makeText(context, sb.toString(), Toast.LENGTH_LONG).show();
Intent i = new Intent(context, DBDemo.class);
i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(i);
}
}
}

此處的接收是收到消息時(shí)，彈出一個(gè)Toast提示，在此基礎(chǔ)上稍做修改也可以實(shí)現(xiàn)將收到的消息放入文本框從而展示出來(lái)。注意最后必須將控制權(quán)交還給上一個(gè)Activity，不然程序會(huì)出錯(cuò)。

好了，收發(fā)短信的代碼都有了，下面需要配置權(quán)限，只有程序擁有了權(quán)限，這些功能才能真正被使用
修改AndroidManifest.xml，在Activity下添加receiver節(jié)點(diǎn)：
<receiver android:name="MessageDemo">
<intent-filter>
<action android:name="android.provider.Telephony.SMS_RECEIVED" />
</intent-filter>
</receiver>
隨后在application下添加節(jié)點(diǎn)：
<uses-permission android:name="android.permission.SEND_SMS"></uses-permission>
<uses-permission android:name="android.permission.RECEIVE_SMS"></uses-permission>

abd shell
cd data/data
ls
cd databases
ls
sqlite2 ***.db
.table

123

校驗(yàn)css版本

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">
    <mx:XML id="xmlFile" source="menu.xml"/>

 <mx:Label text="人員名單" fontSize="18" x="595" y="70"/>

 <!-- 定義grid：指定數(shù)據(jù)來(lái)源，表頭-->
 <mx:DataGrid dataProvider="{xmlFile.order}" width="468" x="419" y="118" height="258">
  <mx:columns>
   <mx:DataGridColumn dataField="name" headerText="姓名"  fontSize="14"/>
   <mx:DataGridColumn dataField="rest" headerText="餐館名" fontSize="14"/>
   <mx:DataGridColumn dataField="food" headerText="菜名" fontSize="14"/>
   <mx:DataGridColumn dataField="time" headerText="時(shí)間" fontSize="14"/>
   <mx:DataGridColumn dataField="ip" headerText="IP" fontSize="14" width="115"/>
   <mx:DataGridColumn dataField="price" headerText="價(jià)錢" fontSize="14"/>

  </mx:columns>
 </mx:DataGrid>

</mx:Application>

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">
   
    <mx:Script>
        <![CDATA[
             import mx.controls.Alert; 
           
                 function selected(rtn:RadioButton):void{
                     Alert.show(""+rtn);
                 }
             
             
        ]]>
    </mx:Script>
     <mx:Button label="Check Answer"  
                 click="Alert.show(option1.selected?'Correct Answer!':'Wrong Answer', 'Result')"  x="430" y="117"/>
     <mx:RadioButton   groupName="year" id="option1" label="1942" value="2" x="500" y="49"    click="selected(option1)" />
     <mx:RadioButton   groupName="year" id="option2" label="1952" value="1" x="430" y="49" click="selected(option2)"/>
</mx:Application>

今天很高興開(kāi)了這個(gè)博客
這個(gè)博客地址是在百度上搜索經(jīng)常遇到
所以就進(jìn)來(lái)了
感覺(jué)不錯(cuò)
非常不錯(cuò)