Settings: Protect sensitive data on the about phone

- Hide some personal info like phone number and IMEI.
- IMEI shows on a tap, so why not.
- Avoid showing this in screenshot/screenrecord

Co-authored-by: El Dainosor <eldainosor@gmail.com>
Change-Id: I45b7898da440c36045aec64a0a86fb804116cd9d

src/com/android/settings/deviceinfo/imei/ImeiInfoPreferenceController.java

@@ -96,7 +96,7 @@ public class ImeiInfoPreferenceController extends BasePreferenceController {
 
     @Override
     public CharSequence getSummary() {
-        return getSummary(0);
+        return mContext.getString(R.string.device_info_protected_single_press);
     }
 
     private CharSequence getSummary(int simSlot) {
@@ -113,6 +113,7 @@ public class ImeiInfoPreferenceController extends BasePreferenceController {
         }
 
         ImeiInfoDialogFragment.show(mFragment, simSlot, preference.getTitle().toString());
+        preference.setSummary(getSummary(simSlot));
         return true;
     }
 
@@ -129,7 +130,7 @@ public class ImeiInfoPreferenceController extends BasePreferenceController {
 
     private void updatePreference(Preference preference, int simSlot) {
         preference.setTitle(getTitle(simSlot));
-        preference.setSummary(getSummary(simSlot));
+        preference.setSummary(getSummary());
     }
 
     private CharSequence getTitleForGsmPhone(int simSlot) {