我试图在android studio上使用广播接收器获取来电信息。以下是我尝试的方法:
<receiver android:name=".receivers.IncomingCalls">
<intent-filter>
<action android:name="android.intent.action.PHONE_STATE" />
</intent-filter>
</receiver>
在这个接收者的意图我试过:
方法一:
incnumber=intent.getStringExtra(TelephonyManager.EXTRA_INCOMING_NUMBER);
方法二:
final String state1 = intent.getStringExtra(TelephonyManager.EXTRA_STATE);
telephony.listen(new PhoneStateListener(){
@Override
public void onCallStateChanged(int state, final String incomingNumber) {
super.onCallStateChanged(state, incomingNumber);
incnumber=incomingNumber;
}
},PhoneStateListener.LISTEN_CALL_STATE);
方法三:
incnumber=intent.getStringExtra(TelephonyManager.EXTRA_INCOMING_NUMBER);
所有这三种方法都返回空的incnumber。
顺便说一句,我在android pie上运行这个项目,请帮帮我。
试试这种方式......许可
<uses-permission android:name="android.permission.READ_PHONE_STATE"/>
让广播接收者说ServiceReceiver在Manifest中分配它的动作。
<receiver android:name=".ServiceReceiver" >
<intent-filter>
<action android:name="android.intent.action.PHONE_STATE" />
</intent-filter>
service receiver.Java
public class ServiceReceiver extends BroadcastReceiver {
@Override
public void onReceive(final Context context, Intent intent) {
TelephonyManager telephony = (TelephonyManager)context.getSystemService(Context.TELEPHONY_SERVICE);
telephony.listen(new PhoneStateListener(){
@Override
public void onCallStateChanged(int state, String incomingNumber) {
super.onCallStateChanged(state, incomingNumber);
System.out.println("incomingNumber : "+incomingNumber);
}
},PhoneStateListener.LISTEN_CALL_STATE);
}
}