Getting the caller ID in Android 9

不想你离开。 提交于 2019-11-27 02:21:40

问题


I have been using the following code in a BroadcastReceiver to get the caller ID of incoming calls:

@Override
public void onReceive(Context aContext, Intent aIntent) {
   String action = aIntent.getAction();

   if (action==null) return;
   if (!action.equals("android.intent.action.PHONE_STATE")) return;

   String curState = aIntent.getStringExtra(TelephonyManager.EXTRA_STATE);

   if ((TelephonyManager.EXTRA_STATE_RINGING.equals(curState))
      &&(TelephonyManager.EXTRA_STATE_IDLE.equals(oldState)))){
      String incNumber = aIntent.getStringExtra(TelephonyManager.EXTRA_INCOMING_NUMBER);

      // do something here
   }
   oldState=curState;
}

Unfortunately this has stopped working in Android 9.0 (API 28). More specifically, aIntent.getStringExtra(EXTRA_INCOMING_NUMBER) always returns null. In android versions<=API 27 everything works correctly

I have also added the READ_PHONE_STATE and READ_CALL_LOG permissions in the manifest file.

Any ideas? Anybody else experiencing the same problem?

Thanks in advance for your help.


回答1:


I found the answer to my question:

First, in Android 9, you have to explicitly ask for both the READ_PHONE_STATE and the READ_CALL_LOG permissions at run time. In previous Android versions you only had to ask for the READ_PHONE_STATE permission. Both of them have to be asked at run time.

Second, if both of the above permissions have been given, the onReceive method is called twice (!!). The first time the intent is "empty" (EXTRA_INCOMING_NUMBER is null). The second time the intent is normally populated as it should. This is documented in the TelephonyManager Documentation.




回答2:


Add READ_CALL_LOG permission in manifest as below :

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

Then

Apps -> Your App -> Permissions -> Grant Call Logs Permission

Your should get phone number now, after the second time your receiver is called



来源:https://stackoverflow.com/questions/52009874/getting-the-caller-id-in-android-9

易学教程内所有资源均来自网络或用户发布的内容,如有违反法律规定的内容欢迎反馈
该文章没有解决你所遇到的问题?点击提问,说说你的问题,让更多的人一起探讨吧!