Android教程：获取设备的基本服务信息

TelephonyManager提供了取得手机基本服务的信息的一种方式。因此应用程序可以使用TelephonyManager来探测手机基本服务的情况。应用程序也可以注册listener来监听电话状态的改变。我们不能对TelephonyManager进行实例化，只能通过如下的形式得到对其实例的引用：Context.getSystemService（Context.TELEPHONY_SERVICE）.注意：对手机的某些信息进行读取是需要一定许可（permission）的。可以通过在manifest file中添加一定的许可（permission），以便来对对手机的某些信息进行读取。本文源码下载：免费下载地址在 http://linux.linuxidc.com/用户名与密码都是www.linuxidc.com具体下载目录在 /pub/Android源码集锦/2011年/12月/Android教程：获取设备的基本服务信息/

先是Java代码

TelephonyManager tm = （TelephonyManager） getSystemService（Context.TELEPHONY_SERVICE）;
StringBuilder sb = new StringBuilder（）;
sb.append（" DeviceId（IMEI） = " + tm.getDeviceId（））;
sb.append（" DeviceSoftwareVersion = " + tm.getDeviceSoftwareVersion（））;
sb.append（" Line1Number = " + tm.getLine1Number（））;
sb.append（" NetworkCountryIso = " + tm.getNetworkCountryIso（））;
sb.append（" NetworkOperator = " + tm.getNetworkOperator（））;
sb.append（" NetworkOperatorName = " + tm.getNetworkOperatorName（））;
sb.append（" NetworkType = " + tm.getNetworkType（））;
sb.append（" PhoneType = " + tm.getPhoneType（））;
sb.append（" SimCountryIso = " + tm.getSimCountryIso（））;
sb.append（" SimOperator = " + tm.getSimOperator（））;
sb.append（" SimOperatorName = " + tm.getSimOperatorName（））;
sb.append（" SimSerialNumber = " + tm.getSimSerialNumber（））;
sb.append（" SimState = " + tm.getSimState（））;
sb.append（" SubscriberId（IMSI） = " + tm.getSubscriberId（））;
sb.append（" VoiceMailNumber = " + tm.getVoiceMailNumber（））;
Log.e（"info", sb.toString（））;

然后是Manifest.xml中的权限代码

<uses-permission android:name="android.permission.READ_PHONE_STATE" />

我们把获得的内容信息展示到屏幕上，方便阅览。由于我在家中是用的虚拟机，因此一些信息无法正常显示，先呈上一个虚拟机运行的效果图，实机的会过几天补上。

主要静态成员常量：手机的通话状态：（它们对应PhoneStateListener.LISTEN_CALL_STATE）int CALL_STATE_IDLE Device call state: No activity.Device call state: No activity. 空闲。没有任何活动。int CALL_STATE_OFFHOOK Device call state: Off-hook.Device call state: Off-hook. At least one call exists that is dialing, active, or on hold, and no calls are ringing or waiting. 摘机状态。至少有个电话活动。该活动或是拨打（dialing）或是通话，或是 on hold。并且没有电话是ringing or waiting注：on hold的意思是暂时挂起。比如在进行通话A的时候，来了个新的电话B，我们暂时挂起通话A，等通话B结束了，才继续进行A的通话。int CALL_STATE_RINGING Device call state: Ringing.Device call state: Ringing. A new call arrived and is ringing or waiting. In the latter case, another call is already active. 来电。来电，电话铃声响起的那段时间或正在通话又来新电，新来电话不得不等待的那段时间。数据连接活动状态（它们对应PhoneStateListener.LISTEN_DATA_ACTIVITY）int DATA_ACTIVITY_DORMANT Data connection is active, but physical link is downint DATA_ACTIVITY_IN Data connection activity: Currently receiving IP PPP traffic.int DATA_ACTIVITY_INOUT Data connection activity: Currently both sending and receiving IP PPP traffic.int DATA_ACTIVITY_NONE Data connection activity: No traffic.int DATA_ACTIVITY_OUT Data connection activity: Currently sending IP PPP traffic.数据连接状态（它们对应PhoneStateListener.LISTEN_DATA_CONNECTION_STATE ）int DATA_CONNECTED Data connection state: Connected.int DATA_CONNECTING Data connection state: Currently setting up a data connection.int DATA_DISCONNECTED Data connection state: Disconnected.int DATA_SUSPENDED Data connection state: Suspended.数据传送的网络类型int NETWORK_TYPE_1xRTT Current network is 1xRTTint NETWORK_TYPE_CDMA Current network is CDMA: Either IS95A or IS95Bint NETWORK_TYPE_EDGE Current network is EDGEint NETWORK_TYPE_EHRPD Current network is eHRPDint NETWORK_TYPE_EVDO_0 Current network is EVDO revision 0int NETWORK_TYPE_EVDO_A Current network is EVDO revision Aint NETWORK_TYPE_EVDO_B Current network is EVDO revision Bint NETWORK_TYPE_GPRS Current network is GPRSint NETWORK_TYPE_HSDPA Current network is HSDPAint NETWORK_TYPE_HSPA Current network is HSPAint NETWORK_TYPE_HSUPA Current network is HSUPAint NETWORK_TYPE_IDEN Current network is iDenint NETWORK_TYPE_LTE Current network is LTEint NETWORK_TYPE_UMTS Current network is UMTS int NETWORK_TYPE_UNKNOWN Network type is unknown