Camera2: tweak volume key zoom and cleanup

- cleanup unused code
- cleanup codestyle
- add more zoom steps for smother zooming
- show zoom circle indicator during zoom

Change-Id: I5214fc2620a0c5167bfdc8e85f7115966c3b8bcf

1 files changed, 1 insertions, 9 deletions

diff --git a/src/com/android/camera/PreviewGestures.java b/src/com/android/camera/PreviewGestures.java
index 4a1eae083..42d64bb3c 100644
--- a/src/com/android/camera/PreviewGestures.java
+++ b/src/com/android/camera/PreviewGestures.java
@@ -20,7 +20,6 @@ import android.view.GestureDetector;
 import android.view.MotionEvent;
 import android.view.ScaleGestureDetector;
 import android.view.View;
-import android.graphics.Canvas;
 
 import com.android.camera.PhotoMenu;
 import com.android.camera.VideoMenu;
@@ -292,19 +291,12 @@ public class PreviewGestures
         mZoom.onScaleEnd(detector);
     }
 
-    public boolean onScaleStepResize(boolean direction)
-    {
+    public boolean onScaleStepResize(boolean direction) {
         if(mZoom != null){
             return mZoom.onScaleStepResize(direction);
         }
         return false;
     }
 
-    public void onScaleChangeDraw(Canvas canvas)
-    {
-        if(mZoom != null){
-            mZoom.onScaleChangeDraw(canvas);
-        }
-    }
 }