first add sdk

tools/uart_adapter/app/iOS/uartadapter/Cell.m

@@ -0,0 +1,27 @@
+/*
+Copyright (C) 2015 Apple Inc. All Rights Reserved.
+See LICENSE.txt for this sample’s licensing information
+
+Abstract:
+Custom collection view cell for image and its label.
+*/
+
+#import "Cell.h"
+#import "CustomCellBackground.h"
+
+@implementation Cell
+
+
+- (instancetype)initWithCoder:(NSCoder *)aDecoder
+{
+    self = [super initWithCoder:aDecoder];
+    if (self)
+    {
+        // change to our custom selected background view
+        CustomCellBackground *backgroundView = [[CustomCellBackground alloc] initWithFrame:CGRectZero];
+        self.selectedBackgroundView = backgroundView;
+    }
+    return self;
+}
+
+@end