在启动Android模拟器时若报如下错误：

emulator-arm.exe-应用程序错误："0x00474a63"指令引用的"0x0000ffff"内存。该内存不能为"read"。

错误出在SDCard的大小上，在这里大小要设为64MB（暂时没发现有其他值可以，有兴趣的可以测试下）。

有的博客中提到不指定Size值，我也测试了，可行，但是虚拟机就无内存卡可用了。所以还是建议设为64MB。

private NotificationManager myNotiManager;
	private Button button1;
	private Button button2;

	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.notification);

		myNotiManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
		button1 = (Button) findViewById(R.id.button1);
		button2 = (Button) findViewById(R.id.button2);

		button1.setOnClickListener(new OnClickListener() {

			public void onClick(View v) {
				setNotiType(R.drawable.img1, "信息的内容");
			}

		});
		
		button2.setOnClickListener(new OnClickListener() {

			public void onClick(View v) {
				myNotiManager.cancelAll();
			}

		});
	}

	public void setNotiType(int iconId, String text) {
		/*
		 * 建立新的Intent，作为点选Notification留言条时， 会执行的Activity
		 */
		Intent notifyIntent = new Intent(this, MyNotification.class);//单击Notification转跳至MyNotification.class
		notifyIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
		/* 建立PendingIntent作为设定递延执行的Activity */
		PendingIntent appIntent = PendingIntent.getActivity(
				MyNotification.this, 0, notifyIntent, 0);

		/* 建立Notication，并设定相关参数 */
		Notification myNoti = new Notification();
		/* 设定statusbar显示的icon */
		myNoti.icon = iconId;
		/* 设定statusbar显示的文字讯息 */
		myNoti.tickerText = text;
		/* 设定notification发生时同时发出预设声音 */
		myNoti.defaults = Notification.DEFAULT_SOUND;
		//屏幕亮myNoti.defaults = Notification.DEFAULT_LIGHTS;
		//震动myNoti.defaults = Notification.DEFAULT_VIBRATE;
		//包括铃声、屏幕亮和震动myNoti.defaults = Notification.DEFAULT_ALL;
		/* 设定Notification留言条的参数 */
		myNoti.setLatestEventInfo(MyNotification.this, "信息的标题", text, appIntent);
		/* 送出Notification */
		myNotiManager.notify(0, myNoti);
	}

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="com.cchen.connect"
      android:versionCode="1"
      android:versionName="1.0">
    <uses-sdk android:minSdkVersion="8" />
	<uses-permission android:name="android.permission.BLUETOOTH" />
	<uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
	<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
	<uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />  

    <application android:icon="@drawable/icon" android:label="@string/app_name">
        <receiver android:name=".ActionReceiver">
           <intent-filter>
                <action android:name="android.intent.action.USER_PRESENT"/> 
           </intent-filter>
           <intent-filter>
                <action android:name="android.intent.action.BOOT_COMPLETED"/> 
           </intent-filter>
        </receiver>

    </application>
</manifest>

package com.cchen.connect;

import android.bluetooth.BluetoothAdapter;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.net.wifi.WifiManager;
import android.util.Log;

public class ActionReceiver extends BroadcastReceiver{
    static final String LOG_TAG = "ActionReceiver";
	private BluetoothAdapter blueAdapter;

    @Override
    public void onReceive(Context context, Intent intentIn) {
        Log.d(LOG_TAG, "ACTION = " + intentIn.getAction());
        String action = intentIn.getAction();
        if (Intent.ACTION_USER_PRESENT.equals(action) || Intent.ACTION_BOOT_COMPLETED.equals(action) )
        {
            blueAdapter = BluetoothAdapter.getDefaultAdapter();
            if(!blueAdapter.isEnabled()){
              blueAdapter.enable();
            }

            WifiManager wifiMgr = (WifiManager)context.getSystemService(Context.WIFI_SERVICE);
            int wifiState = wifiMgr.getWifiState();
            if(wifiState == WifiManager.WIFI_STATE_DISABLED)
            {
            	wifiMgr.setWifiEnabled(true);
            }

            Log.d(LOG_TAG, "========== UNLOCKINTENT " + blueAdapter.isEnabled() + wifiMgr.getWifiState());
        }
    }
}