Java 如何在 Android 中以编程方式获取自己的电话号码？
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How can I get my own phone number programmatically in Android?
提问by Burro
I tried the following code to get my own number and get a NULL string. What is the problem?
我尝试了以下代码来获取我自己的号码并获取一个 NULL 字符串。问题是什么？
TelephonyManager mTelephonyMgr;
mTelephonyMgr = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
String phoneNumber = mTelephonyMgr.getLine1Number();
Permission
允许
<uses-permission android:name="android.permission.READ_PHONE_STATE"/>
回答by Tim
Add this to your manifest
将此添加到您的清单中
<uses-permission android:name="android.permission.READ_PHONE_STATE"/>
You need the user's permission to retrieve this data
您需要用户的许可才能检索此数据
If it still returns null, that means the data is not available, and you cant use it.
如果它仍然返回null，则表示数据不可用，您不能使用它。
回答by Jorgesys
Use TelephonyManager.getLine1Number()
But you need to have stored the phone number on the SIM card, and there′s no other way to get your "own number".
但是您需要将电话号码存储在 SIM 卡上，没有其他方法可以获取您的“自己的号码”。
Example:
例子：
TelephonyManager tm = (TelephonyManager)this.getApplicationContext().getSystemService(Context.TELEPHONY_SERVICE);
String myPhoneNumber = tm.getLine1Number();
and you need this permission into your Manifest.xml
你需要这个权限到你的 Manifest.xml
<uses-permission android:name="android.permission.READ_PHONE_STATE"/>
See this Question: TelephonyManager.getLine1Number() failing?as describe, you need to evaluate:
请参阅此问题： TelephonyManager.getLine1Number() 失败？如描述，您需要评估：
if("SIM card present" && "phone number is stored") {
"get the phone number with TelephonyManager.getLine1Number"
}
