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[Settings] To avoid from crash when callback

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Callback from SubscriptionManager and PhoneStateListner may comes in
under the case of Preference not available.

Bug: 141833767
Test: make RunSettingsRoboTests -j ROBOTEST_FILTER=Enhanced4gBasePreferenceControllerTest
Test: make RunSettingsRoboTests -j ROBOTEST_FILTER=VideoCallingPreferenceControllerTest
Test: make RunSettingsRoboTests -j ROBOTEST_FILTER=WifiCallingPreferenceControllerTest
Change-Id: I50b83b4488d272f6482bde5f09b57d59e6fc27a3
This commit is contained in:
Bonian Chen
2020-04-19 22:46:05 +08:00
parent 90cce123e5
commit 0f47147543
3 changed files with 8 additions and 2 deletions
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4
src/com/android/settings/network/telephony/WifiCallingPreferenceController.java
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@@ -30,6 +30,7 @@ import android.telephony.PhoneStateListener;
import android.telephony.SubscriptionManager;
import android.telephony.TelephonyManager;
import android.telephony.ims.ImsMmTelManager;
import android.util.Log;
import androidx.annotation.VisibleForTesting;
import androidx.preference.Preference;
@@ -98,7 +99,8 @@ public class WifiCallingPreferenceController extends TelephonyBasePreferenceCont
@Override
public void updateState(Preference preference) {
super.updateState(preference);
if (mCallState == null) {
if ((mCallState == null) || (preference == null)) {
Log.d(TAG, "Skip update under mCallState=" + mCallState);
return;
}
CharSequence summaryText = null;