Fix IllegalArgumentException in AudioHelper

Audio streams for phone calls in BT device (STREAM_VOICE_CALL) is not
supported in AudioManager.getStreamMinVolume(), fallback to use
STREAM_VOICE_CALL

Fixes: 133812547
Test: make RunSettingsRoboTests
Change-Id: I8e330f60bae2a7cf9cd0cf7288076b8320ccc504

src/com/android/settings/notification/AudioHelper.java

@@ -22,6 +22,7 @@ import android.media.AudioManager;
 import android.media.AudioSystem;
 import android.os.UserHandle;
 import android.os.UserManager;
+import android.util.Log;
 
 import com.android.settings.Utils;
 
@@ -30,6 +31,7 @@ import com.android.settings.Utils;
  */
 public class AudioHelper {
 
+    private static final String TAG = "AudioHelper";
     private Context mContext;
     private AudioManager mAudioManager;
 
@@ -76,6 +78,15 @@ public class AudioHelper {
     }
 
     public int getMinVolume(int stream) {
-        return mAudioManager.getStreamMinVolume(stream);
+        int minVolume;
+        try {
+            minVolume = mAudioManager.getStreamMinVolume(stream);
+        } catch (IllegalArgumentException e) {
+            Log.w(TAG, "Invalid stream type " + stream);
+            // Fallback to STREAM_VOICE_CALL because CallVolumePreferenceController.java default
+            // return STREAM_VOICE_CALL in getAudioStream
+            minVolume = mAudioManager.getStreamMinVolume(AudioManager.STREAM_VOICE_CALL);
+        }
+        return minVolume;
     }
 }