1 files changed, 68 insertions, 3 deletions

diff --git a/java/com/android/contacts/common/compat/TelephonyManagerCompat.java b/java/com/android/contacts/common/compat/TelephonyManagerCompat.java
index 4a16fb855..7e4803ca5 100644
--- a/java/com/android/contacts/common/compat/TelephonyManagerCompat.java
+++ b/java/com/android/contacts/common/compat/TelephonyManagerCompat.java
@@ -27,6 +27,7 @@ import android.telecom.PhoneAccountHandle;
 import android.telephony.TelephonyManager;
 import com.android.dialer.common.Assert;
 import com.android.dialer.common.LogUtil;
+import com.android.dialer.compat.CompatUtils;
 import java.lang.reflect.InvocationTargetException;
 
 public class TelephonyManagerCompat {
@@ -48,6 +49,31 @@ public class TelephonyManagerCompat {
   private static final String SECRET_CODE_ACTION = "android.provider.Telephony.SECRET_CODE";
 
   /**
+   * @param telephonyManager The telephony manager instance to use for method calls.
+   * @return true if the current device is "voice capable".
+   *     <p>"Voice capable" means that this device supports circuit-switched (i.e. voice) phone
+   *     calls over the telephony network, and is allowed to display the in-call UI while a cellular
+   *     voice call is active. This will be false on "data only" devices which can't make voice
+   *     calls and don't support any in-call UI.
+   *     <p>Note: the meaning of this flag is subtly different from the
+   *     PackageManager.FEATURE_TELEPHONY system feature, which is available on any device with a
+   *     telephony radio, even if the device is data-only.
+   */
+  public static boolean isVoiceCapable(@Nullable TelephonyManager telephonyManager) {
+    if (telephonyManager == null) {
+      return false;
+    }
+    if (CompatUtils.isLollipopMr1Compatible()
+        || CompatUtils.isMethodAvailable(TELEPHONY_MANAGER_CLASS, "isVoiceCapable")) {
+      // isVoiceCapable was unhidden in L-MR1
+      return telephonyManager.isVoiceCapable();
+    }
+    final int phoneType = telephonyManager.getPhoneType();
+    return phoneType == TelephonyManager.PHONE_TYPE_CDMA
+        || phoneType == TelephonyManager.PHONE_TYPE_GSM;
+  }
+
+  /**
    * Returns the number of phones available. Returns 1 for Single standby mode (Single SIM
    * functionality) Returns 2 for Dual standby mode.(Dual SIM functionality)
    *
@@ -59,7 +85,31 @@ public class TelephonyManagerCompat {
     if (telephonyManager == null) {
       return 1;
     }
-    return telephonyManager.getPhoneCount();
+    if (CompatUtils.isMarshmallowCompatible()
+        || CompatUtils.isMethodAvailable(TELEPHONY_MANAGER_CLASS, "getPhoneCount")) {
+      return telephonyManager.getPhoneCount();
+    }
+    return 1;
+  }
+
+  /**
+   * Returns the unique device ID of a subscription, for example, the IMEI for GSM and the MEID for
+   * CDMA phones. Return null if device ID is not available.
+   *
+   * <p>Requires Permission: {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE}
+   *
+   * @param telephonyManager The telephony manager instance to use for method calls.
+   * @param slotId of which deviceID is returned
+   */
+  public static String getDeviceId(@Nullable TelephonyManager telephonyManager, int slotId) {
+    if (telephonyManager == null) {
+      return null;
+    }
+    if (CompatUtils.isMarshmallowCompatible()
+        || CompatUtils.isMethodAvailable(TELEPHONY_MANAGER_CLASS, "getDeviceId", Integer.class)) {
+      return telephonyManager.getDeviceId(slotId);
+    }
+    return null;
   }
 
   /**
@@ -69,7 +119,14 @@ public class TelephonyManagerCompat {
    * @return {@code true} if the device supports TTY mode, and {@code false} otherwise.
    */
   public static boolean isTtyModeSupported(@Nullable TelephonyManager telephonyManager) {
-    return telephonyManager != null && telephonyManager.isTtyModeSupported();
+    if (telephonyManager == null) {
+      return false;
+    }
+    if (CompatUtils.isMarshmallowCompatible()
+        || CompatUtils.isMethodAvailable(TELEPHONY_MANAGER_CLASS, "isTtyModeSupported")) {
+      return telephonyManager.isTtyModeSupported();
+    }
+    return false;
   }
 
   /**
@@ -81,7 +138,15 @@ public class TelephonyManagerCompat {
    */
   public static boolean isHearingAidCompatibilitySupported(
       @Nullable TelephonyManager telephonyManager) {
-    return telephonyManager != null && telephonyManager.isHearingAidCompatibilitySupported();
+    if (telephonyManager == null) {
+      return false;
+    }
+    if (CompatUtils.isMarshmallowCompatible()
+        || CompatUtils.isMethodAvailable(
+            TELEPHONY_MANAGER_CLASS, "isHearingAidCompatibilitySupported")) {
+      return telephonyManager.isHearingAidCompatibilitySupported();
+    }
+    return false;
   }
 
   /**