b/2138890 Pre-initilize Bluetooth profile managers

Change-Id: I633202457ca445308ec35b99260e603a85451042

src/com/android/settings/bluetooth/LocalBluetoothManager.java

@@ -79,6 +79,8 @@ public class LocalBluetoothManager {
                 return null;
             }
 
+            LocalBluetoothProfileManager.init(INSTANCE);
+
             return INSTANCE;
         }
     }

src/com/android/settings/bluetooth/LocalBluetoothProfileManager.java

@@ -22,6 +22,7 @@ import android.bluetooth.BluetoothHeadset;
 import android.bluetooth.BluetoothUuid;
 import android.bluetooth.ParcelUuid;
 import android.os.Handler;
+import android.util.Log;
 
 import com.android.settings.R;
 
@@ -57,35 +58,36 @@ public abstract class LocalBluetoothProfileManager {
 
     protected LocalBluetoothManager mLocalManager;
 
-    public static LocalBluetoothProfileManager getProfileManager(LocalBluetoothManager localManager,
+    public static void init(LocalBluetoothManager localManager) {
-            Profile profile) {
+        synchronized (sProfileMap) {
-
+            if (sProfileMap.size() == 0) {
                 LocalBluetoothProfileManager profileManager;
 
-        synchronized (sProfileMap) {
-            profileManager = sProfileMap.get(profile);
-
-            if (profileManager == null) {
-                switch (profile) {
-                case A2DP:
                 profileManager = new A2dpProfileManager(localManager);
-                    break;
+                sProfileMap.put(Profile.A2DP, profileManager);
 
-                case HEADSET:
                 profileManager = new HeadsetProfileManager(localManager);
-                    break;
+                sProfileMap.put(Profile.HEADSET, profileManager);
 
-                case OPP:
                 profileManager = new OppProfileManager(localManager);
-                    break;
+                sProfileMap.put(Profile.OPP, profileManager);
             }
-
-                sProfileMap.put(profile, profileManager);
         }
     }
 
+    public static LocalBluetoothProfileManager getProfileManager(LocalBluetoothManager localManager,
+            Profile profile) {
+        // Note: This code assumes that "localManager" is same as the
+        // LocalBluetoothManager that was used to initialize the sProfileMap.
+        // If that every changes, we can't just keep one copy of sProfileMap.
+        synchronized (sProfileMap) {
+            LocalBluetoothProfileManager profileManager = sProfileMap.get(profile);
+            if (profileManager == null) {
+                Log.e(TAG, "profileManager can't be found for " + profile.toString());
+            }
             return profileManager;
         }
+    }
 
     /**
      * Temporary method to fill profiles based on a device's class.