Merge "Add intdef for Telephony network type constants"

telephony/java/android/telephony/TelephonyManager.java

@@ -2089,10 +2089,37 @@ public class TelephonyManager {
 
     /** Max network type number. Update as new types are added. Don't add negative types. {@hide} */
     public static final int MAX_NETWORK_TYPE = NETWORK_TYPE_LTE_CA;
+
+    /** @hide */
+    @IntDef({
+            NETWORK_TYPE_UNKNOWN,
+            NETWORK_TYPE_GPRS,
+            NETWORK_TYPE_EDGE,
+            NETWORK_TYPE_UMTS,
+            NETWORK_TYPE_CDMA,
+            NETWORK_TYPE_EVDO_0,
+            NETWORK_TYPE_EVDO_A,
+            NETWORK_TYPE_1xRTT,
+            NETWORK_TYPE_HSDPA,
+            NETWORK_TYPE_HSUPA,
+            NETWORK_TYPE_HSPA,
+            NETWORK_TYPE_IDEN,
+            NETWORK_TYPE_EVDO_B,
+            NETWORK_TYPE_LTE,
+            NETWORK_TYPE_EHRPD,
+            NETWORK_TYPE_HSPAP,
+            NETWORK_TYPE_GSM,
+            NETWORK_TYPE_TD_SCDMA,
+            NETWORK_TYPE_IWLAN,
+            NETWORK_TYPE_LTE_CA,
+    })
+    @Retention(RetentionPolicy.SOURCE)
+    public @interface NetworkType{}
+
     /**
      * @return the NETWORK_TYPE_xxxx for current data connection.
      */
-    public int getNetworkType() {
+    public @NetworkType int getNetworkType() {
        try {
            ITelephony telephony = getITelephony();
            if (telephony != null) {
@@ -2147,7 +2174,7 @@ public class TelephonyManager {
                 // This can happen when the ITelephony interface is not up yet.
                 return NETWORK_TYPE_UNKNOWN;
             }
-       } catch(RemoteException ex) {
+        } catch (RemoteException ex) {
             // This shouldn't happen in the normal case
             return NETWORK_TYPE_UNKNOWN;
         } catch (NullPointerException ex) {
@@ -2187,7 +2214,7 @@ public class TelephonyManager {
      */
     @SuppressAutoDoc // Blocked by b/72967236 - no support for carrier privileges
     @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE)
-    public int getDataNetworkType() {
+    public @NetworkType int getDataNetworkType() {
         return getDataNetworkType(getSubId(SubscriptionManager.getDefaultDataSubscriptionId()));
     }
 
@@ -2227,7 +2254,7 @@ public class TelephonyManager {
      */
     @SuppressAutoDoc // Blocked by b/72967236 - no support for carrier privileges
     @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE)
-    public int getVoiceNetworkType() {
+    public @NetworkType int getVoiceNetworkType() {
         return getVoiceNetworkType(getSubId());
     }