Merge "Fix issue that the wifi calling text cannot be customized based on sim"

res/values/strings.xml

@@ -2503,7 +2503,7 @@
         <item>"1"</item>
     </string-array>
     <!-- Wi-Fi Calling settings. Text displayed when Wi-Fi Calling is off -->
-    <string name="wifi_calling_off_explanation">When Wi-Fi calling is on, your phone can route calls via Wi-Fi networks or your carrier\u2019s network, depending on your preference and which signal is stronger. Before turning on this feature, check with your carrier regarding fees and other details.</string>
+    <string name="wifi_calling_off_explanation">When Wi-Fi calling is on, your phone can route calls via Wi-Fi networks or your carrier\u2019s network, depending on your preference and which signal is stronger. Before turning on this feature, check with your carrier regarding fees and other details.<xliff:g id="additional_text" example="Learn More">%1$s</xliff:g></string>
     <!-- Wi-Fi Calling settings. Additional text displayed when Wi-Fi Calling is off. Default empty. [CHAR LIMIT=NONE] -->
     <string name="wifi_calling_off_explanation_2"></string>
     <!-- Title of a preference for updating emergency address [CHAR LIMIT=40] -->

src/com/android/settings/wifi/calling/WifiCallingSettings.java

@@ -30,6 +30,7 @@ import androidx.fragment.app.FragmentManager;
 import androidx.fragment.app.FragmentPagerAdapter;
 
 import com.android.ims.ImsManager;
+import com.android.internal.util.CollectionUtils;
 import com.android.settings.R;
 import com.android.settings.core.InstrumentedFragment;
 import com.android.settings.search.actionbar.SearchMenuController;
@@ -53,6 +54,24 @@ public class WifiCallingSettings extends InstrumentedFragment implements HelpRes
     private WifiCallingViewPagerAdapter mPagerAdapter;
     private SlidingTabLayout mTabLayout;
 
+    private final class InternalViewPagerListener implements
+            RtlCompatibleViewPager.OnPageChangeListener {
+        @Override
+        public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
+            // Do nothing.
+        }
+
+        @Override
+        public void onPageSelected(int position) {
+            updateTitleForCurrentSub();
+        }
+
+        @Override
+        public void onPageScrollStateChanged(int state) {
+            // Do nothing.
+        }
+    }
+
     @Override
     public int getMetricsCategory() {
         return SettingsEnums.WIFI_CALLING;
@@ -68,6 +87,7 @@ public class WifiCallingSettings extends InstrumentedFragment implements HelpRes
 
         mPagerAdapter = new WifiCallingViewPagerAdapter(getChildFragmentManager(), mViewPager);
         mViewPager.setAdapter(mPagerAdapter);
+        mViewPager.addOnPageChangeListener(new InternalViewPagerListener());
 
         return view;
     }
@@ -93,6 +113,8 @@ public class WifiCallingSettings extends InstrumentedFragment implements HelpRes
         } else {
             mTabLayout.setVisibility(View.GONE);
         }
+
+        updateTitleForCurrentSub();
     }
 
     @Override
@@ -163,4 +185,13 @@ public class WifiCallingSettings extends InstrumentedFragment implements HelpRes
             }
         }
     }
+
+    private void updateTitleForCurrentSub() {
+        if (CollectionUtils.size(mSil) > 1) {
+            final int subId = mSil.get(mViewPager.getCurrentItem()).getSubscriptionId();
+            final String title = SubscriptionManager.getResourcesForSubId(getContext(), subId)
+                    .getString(R.string.wifi_calling_settings_title);
+            getActivity().getActionBar().setTitle(title);
+        }
+    }
 }

src/com/android/settings/wifi/calling/WifiCallingSettingsForSub.java

@@ -23,6 +23,7 @@ import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
 import android.content.IntentFilter;
+import android.content.res.Resources;
 import android.os.Bundle;
 import android.os.PersistableBundle;
 import android.telephony.CarrierConfigManager;
@@ -176,8 +177,9 @@ public class WifiCallingSettingsForSub extends SettingsPreferenceFragment
 
         mEmptyView = getView().findViewById(android.R.id.empty);
         setEmptyView(mEmptyView);
-        String emptyViewText = activity.getString(R.string.wifi_calling_off_explanation)
+        final Resources res = SubscriptionManager.getResourcesForSubId(getActivity(), mSubId);
-                + activity.getString(R.string.wifi_calling_off_explanation_2);
+        String emptyViewText = res.getString(R.string.wifi_calling_off_explanation,
+                res.getString(R.string.wifi_calling_off_explanation_2));
         mEmptyView.setText(emptyViewText);
 
         mSwitchBar = getView().findViewById(R.id.switch_bar);