Merge "Expose methods to enumerate constants"

api/module-lib-current.txt

@@ -71,6 +71,18 @@ package android.os {
 
 }
 
+package android.telephony {
+
+  public abstract class CellSignalStrength {
+    method public static int getNumSignalStrengthLevels();
+  }
+
+  public class TelephonyManager {
+    method @NonNull public static int[] getAllNetworkTypes();
+  }
+
+}
+
 package android.util {
 
   public final class Log {

non-updatable-api/module-lib-current.txt

@@ -26,6 +26,18 @@ package android.os {
 
 }
 
+package android.telephony {
+
+  public abstract class CellSignalStrength {
+    method public static int getNumSignalStrengthLevels();
+  }
+
+  public class TelephonyManager {
+    method @NonNull public static int[] getAllNetworkTypes();
+  }
+
+}
+
 package android.util {
 
   public final class Log {

telephony/java/android/telephony/CellSignalStrength.java

@@ -17,6 +17,7 @@
 package android.telephony;
 
 import android.annotation.IntRange;
+import android.annotation.SystemApi;
 import android.os.PersistableBundle;
 
 /**
@@ -155,11 +156,12 @@ public abstract class CellSignalStrength {
 
     /**
      * Returns the number of signal strength levels.
-     * @return Number of signal strength levels, enforced to be 5
+     * @return Number of signal strength levels, currently defined in the HAL as 5.
      *
      * @hide
      */
-    public static final int getNumSignalStrengthLevels() {
+    @SystemApi(client = SystemApi.Client.MODULE_LIBRARIES)
+    public static int getNumSignalStrengthLevels() {
         return NUM_SIGNAL_STRENGTH_BINS;
     }
 }

telephony/java/android/telephony/TelephonyManager.java

@@ -2829,11 +2829,13 @@ public class TelephonyManager {
     };
 
     /**
-     * Return a collection of all network types
-     * @return network types
+     * Returns an array of all valid network types.
+     *
+     * @return An integer array containing all valid network types in no particular order.
      *
      * @hide
      */
+    @SystemApi(client = SystemApi.Client.MODULE_LIBRARIES)
     public static @NonNull @NetworkType int[] getAllNetworkTypes() {
         return NETWORK_TYPES;
     }