commit 50a266705d7452bf3ba5215feadf56020b3cd8fc
author Tyler Gunn <tgunn@google.com> Sat Mar 09 06:37:53 2019 -0800
committer android-build-merger <android-build-merger@google.com> Sat Mar 09 06:37:53 2019 -0800
tree b83511748b770de326b491800de1362ed7a0b609
parent d49498c48019be0a88ff53a5b2e0980feb8aa17e
parent 1805c4d0d5db408efa63ef4079aa57d540406ed3

Merge "Respect carrier setting indicating TTY is or isn't available." am: 0e4093e1f1 am: b573d5b4b3
am: 1805c4d0d5

Change-Id: Icd4774484d63e8b30a374ee8080babb3a2504477

src/com/android/phone/settings/AccessibilitySettingsFragment.java

diff --git a/src/com/android/phone/settings/AccessibilitySettingsFragment.java b/src/com/android/phone/settings/AccessibilitySettingsFragment.java
index 5c614d9..d540fba 100644
--- a/src/com/android/phone/settings/AccessibilitySettingsFragment.java
+++ b/src/com/android/phone/settings/AccessibilitySettingsFragment.java
@@ -93,7 +93,7 @@
         mButtonHac = (SwitchPreference) findPreference(BUTTON_HAC_KEY);
         mButtonRtt = (SwitchPreference) findPreference(BUTTON_RTT_KEY);
 
-        if (PhoneGlobals.getInstance().phoneMgr.isTtyModeSupported()) {
+        if (PhoneGlobals.getInstance().phoneMgr.isTtyModeSupported() && isTtySupportedByCarrier()) {
             mButtonTty.init();
         } else {
             getPreferenceScreen().removePreference(mButtonTty);
@@ -191,4 +191,15 @@
         }
         return false;
     }
+
+    /**
+     * Determines if the device supports TTY per carrier config.
+     * @return {@code true} if the carrier supports TTY, {@code false} otherwise.
+     */
+    private boolean isTtySupportedByCarrier() {
+        CarrierConfigManager configManager =
+                (CarrierConfigManager) mContext.getSystemService(Context.CARRIER_CONFIG_SERVICE);
+        return configManager.getConfig().getBoolean(
+                CarrierConfigManager.KEY_TTY_SUPPORTED_BOOL);
+    }
 }