first add sdk

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

@@ -0,0 +1,30 @@
+/*
+Copyright (C) 2015 Apple Inc. All Rights Reserved.
+See LICENSE.txt for this sample’s licensing information
+
+Abstract:
+Custom UIView to draw a rounded blue box to represent a selected cell.
+*/
+
+#import "CustomCellBackground.h"
+
+@implementation CustomCellBackground
+
+- (void)drawRect:(CGRect)rect
+{
+    // draw a rounded rect bezier path filled with blue
+    CGContextRef aRef = UIGraphicsGetCurrentContext();
+    CGContextSaveGState(aRef);
+    UIBezierPath *bezierPath = [UIBezierPath bezierPathWithRoundedRect:rect cornerRadius:5.0f];
+    bezierPath.lineWidth = 5.0f;
+    [[UIColor blackColor] setStroke];
+    
+    UIColor *fillColor = [UIColor colorWithRed:0.529 green:0.808 blue:0.922 alpha:1]; // color equivalent is #87ceeb
+    [fillColor setFill];
+    
+    [bezierPath stroke];
+    [bezierPath fill];
+    CGContextRestoreGState(aRef);
+}
+
+@end