取得手機的相關資訊

How to get the telephony information?

在手機平台上，為了產生註冊碼，應用程式通常會要求使用者提供手機的 IMEI 碼。每個手機，都有個長 15 位數字的唯一 IMEI 碼，這可以說是手機的身分證號碼。通常在手機的背面或手機的包裝盒上，都會印有這個 IMEI 碼。你可以在手機上按下 *#06#，IMEI 碼就會顯示在你的手機螢幕上。

在 Android 的程式中，要如何取得這 IMEI 碼？

在 0.9 beta 之前的版本 (m3 or m5)，你可以簡單地用 android.os.SystemProperties.get(TelephonyProperties.PROPERTY_IMEI) 取得這 IMEI 碼。

不過，在 0.9 beta 之後，這部份做了不小的更動。在 v0.9-r1 的 "API changes overview" 文件上，他提到：

You can now access these phone/subscriber properties through the new PhoneSubInfoManager, using the IPhoneSubInfo interface. Note that, to get access phone/subscriber information through the IPhoneSubInfo interface, you must add the permission ACCESS_PHONE_SUB_INFO to your application's manifest file.

吼，這段話真是錯得一塌糊塗，沒有一個是對的。在上面，我標示粗體的部份，都是不對的。

正確的方法在這啦。首先，你是要透過 TelephonyManager 這個類別，來取得資訊才對。 底下是一個簡單的範例，用來取得所有手機相關的資訊。

TelephonyManager tm = (TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE); str += "DeviceId(IMEI) = " + tm.getDeviceId() + "\n"; str += "DeviceSoftwareVersion = " + tm.getDeviceSoftwareVersion() + "\n"; str += "Line1Number = " + tm.getLine1Number() + "\n"; str += "NetworkCountryIso = " + tm.getNetworkCountryIso() + "\n"; str += "NetworkOperator = " + tm.getNetworkOperator() + "\n"; str += "NetworkOperatorName = " + tm.getNetworkOperatorName() + "\n"; str += "NetworkType = " + tm.getNetworkType() + "\n"; str += "PhoneType = " + tm.getPhoneType() + "\n"; str += "SimCountryIso = " + tm.getSimCountryIso() + "\n"; str += "SimOperator = " + tm.getSimOperator() + "\n"; str += "SimOperatorName = " + tm.getSimOperatorName() + "\n"; str += "SimSerialNumber = " + tm.getSimSerialNumber() + "\n"; str += "SimState = " + tm.getSimState() + "\n"; str += "SubscriberId(IMSI) = " + tm.getSubscriberId() + "\n"; str += "VoiceMailNumber = " + tm.getVoiceMailNumber() + "\n";

在模擬器上執行的結果如下：

DeviceId(IMEI) = 000000000000000 DeviceSoftwareVersion = null Line1Number = 15555218135 NetworkCountryIso = us NetworkOperator = 310995 NetworkOperatorName = Android NetworkType = 0 PhoneType = 1 SimCountryIso = us SimOperator = 310995 SimOperatorName = Android SimSerialNumber = 89014103211118510720 SimState = 5 SubscriberId(IMSI) = 310995000000000 VoiceMailNumber = +15552175049

要讓這個程式能正確執行，千萬要記住，還要在 AndroidManifest.xml 上， 加上下面這段才行。

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