问题
I have been working on this problem since weeks. I am making an app which picks the incoming number and shows it in a dialog box after the call is ended. Everything is working fine below android PIE 9.0. The number is always null in android PIE. I have given all permissions including READ_CALL_LOGS but same problem. The incoming number is null. So please anyone help me...
Here is my manifest file :
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.softixtechnologies.phonemanager">
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.READ_CALL_LOG" />
<uses-permission android:name="android.permission.WRITE_CALL_LOG" />
<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />
<uses-permission android:name="android.permission.ACTION_MANAGE_OVERLAY_PERMISSION" />
<uses-permission android:name="android.permission.GET_ACCOUNTS" />
<uses-permission android:name="android.permission.READ_PROFILE" />
<uses-permission android:name="android.permission.READ_CONTACTS" />
<uses-permission android:name="android.permission.WRITE_CONTACTS" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<application
android:allowBackup="true"
android:icon="@drawable/calllogo"
android:label="@string/app_name"
android:persistent="true"
android:roundIcon="@drawable/calllogo"
android:supportsRtl="true"
android:theme="@style/AppTheme"
android:usesCleartextTraffic="true">
<activity android:name=".activities.CallLogEntryActivity"></activity>
<activity android:name=".activities.CallLogsActivity" />
<activity android:name=".activities.IgnoredNumbersActivity" />
<activity android:name=".activities.IContactsActivity" />
<activity android:name=".activities.SplashActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".activities.CategoryPhoneActivity" />
<activity
android:name=".activities.LogsActivity"
android:label="@string/title_activity_logs"
android:theme="@style/AppTheme.NoActionBar" />
<activity
android:name=".activities.CategoryActivity"
android:label="@string/title_activity_category"
android:theme="@style/AppTheme.NoActionBar" />
<activity android:name=".MainActivity" />
<receiver
android:name=".callhelpers.CallReciever"
android:enabled="true">
<intent-filter>
<action android:name="android.intent.action.PHONE_STATE" />
</intent-filter>
</receiver>
<provider
android:name="android.support.v4.content.FileProvider"
android:authorities="${applicationId}.provider"
android:exported="false"
android:grantUriPermissions="true">
<meta-data
android:name="android.support.FILE_PROVIDER_PATHS"
android:resource="@xml/provider_paths" />
</provider>
</application>
Here is my code :
public class PhoneCallReceiver extends BroadcastReceiver {
private static int lastState = TelephonyManager.CALL_STATE_IDLE;
private static Date callStartTime;
private static boolean isIncoming;
private static String savedNumber;
public String phoneNr ;
DatabaseHelper databaseHelper ;
@Override
public void onReceive(final Context context, Intent intent) {
databaseHelper = new DatabaseHelper(context);
if (intent.getAction().equals("android.intent.action.NEW_OUTGOING_CALL")) {
savedNumber = intent.getExtras().getString("android.intent.extra.PHONE_NUMBER");
} else {
String stateStr = intent.getExtras().getString(TelephonyManager.EXTRA_STATE);
String number = intent.getExtras().getString(TelephonyManager.EXTRA_INCOMING_NUMBER);
int state = 0;
if (stateStr.equals(TelephonyManager.EXTRA_STATE_IDLE)) {
state = TelephonyManager.CALL_STATE_IDLE;
} else if (stateStr.equals(TelephonyManager.EXTRA_STATE_OFFHOOK)) {
state = TelephonyManager.CALL_STATE_OFFHOOK;
} else if (stateStr.equals(TelephonyManager.EXTRA_STATE_RINGING)) {
state = TelephonyManager.CALL_STATE_RINGING;
}
onCallStateChanged(context, state, number);
}
}
protected void onIncomingCallStarted(Context ctx, String number, Date start){}
protected void onOutgoingCallStarted(Context ctx, String number, Date start){}
protected void onIncomingCallEnded(Context ctx, String number, Date start, Date end){}
protected void onOutgoingCallEnded(Context ctx, String number, Date start, Date end){}
protected void onMissedCall(final Context ctx, final String number, Date start){}
public void onCallStateChanged(Context context, int state, String number){
if (lastState == state) {
return;
}
switch (state) {
case TelephonyManager.CALL_STATE_RINGING:
isIncoming = true;
callStartTime = new Date();
savedNumber = number;
onIncomingCallStarted(context, number, callStartTime);
break;
case TelephonyManager.CALL_STATE_OFFHOOK:
if (lastState != TelephonyManager.CALL_STATE_RINGING) {
isIncoming = false;
callStartTime = new Date();
onOutgoingCallStarted(context, savedNumber, callStartTime);
}
break;
case TelephonyManager.CALL_STATE_IDLE:
if (lastState == TelephonyManager.CALL_STATE_RINGING) {
onMissedCall(context, savedNumber, callStartTime);
} else if (isIncoming) {
onIncomingCallEnded(context, savedNumber, callStartTime, new Date());
} else {
onOutgoingCallEnded(context, savedNumber, callStartTime, new Date());
}
break;
}
lastState = state;
}
public boolean contactExists(Context context, String number) {
Uri lookupUri = Uri.withAppendedPath(
ContactsContract.PhoneLookup.CONTENT_FILTER_URI,
Uri.encode(number));
String[] mPhoneNumberProjection = { ContactsContract.PhoneLookup._ID, ContactsContract.PhoneLookup.NUMBER, ContactsContract.PhoneLookup.DISPLAY_NAME };
Cursor cur = context.getContentResolver().query(lookupUri,mPhoneNumberProjection, null, null, null);
try {
if (cur.moveToFirst()) {
return true;
}
} finally {
if (cur != null)
cur.close();
}
return false;
}
}
Your help is greatly appreciated!!
回答1:
There are two different "types" of phone state receivers, receivers that have Manifest.permission.READ_CALL_LOG permission and receivers that don't.
If a receiver doesn't have the Manifest.permission.READ_CALL_LOG permission, it will be called for all state changed once, without the EXTRA_INCOMING_NUMBER extra.
If a receiver does have that above permission, like in your case, it will be called for every state changed twice, one without the EXTRA_INCOMING_NUMBER permission, and another time with it.
Since you have this code:
if (lastState == state) {
return;
}
in your onCallStateChanged method, you're basically skipping the second call, and thus losing the EXTRA_INCOMING_NUMBER info.
If you're sure you have the READ_CALL_LOG permission, you can try skipping the duplicated receiver call without that extra completely (however note that there's a difference between getting a "null" value for that extra which means a private number call, and not getting that extra at all), like so:
String stateStr = intent.getExtras().getString(TelephonyManager.EXTRA_STATE);
if (!intent.getExtras().containsKey(TelephonyManager.EXTRA_INCOMING_NUMBER)) {
Log.i("Call receiver", "skipping intent=" + intent + ", extras=" + intent.getExtras() + " - no number was supplied");
return;
}
String number = intent.getExtras().getString(TelephonyManager.EXTRA_INCOMING_NUMBER);
See the official docs at: https://developer.android.com/reference/android/telephony/TelephonyManager#ACTION_PHONE_STATE_CHANGED
来源：https://stackoverflow.com/questions/57441487/incoming-number-is-null-after-ending-the-call-in-android-pie-9