- (void)setUpDashedBox2:(UIView *)view{

CAShapeLayer *shapeLayer = [CAShapeLayer layer];

[shapeLayer setBounds:view.bounds];

[shapeLayer setPosition:view.center];

[shapeLayer setFillColor:[[UIColor groupTableViewBackgroundColor] CGColor]];

// 設置虛線顏色為blackColor

[shapeLayer setStrokeColor:[[UIColor blackColor] CGColor]];

// [shapeLayer setStrokeColor:[HMMainlColor CGColor]];

// 3.0f設置虛線的寬度

[shapeLayer setLineWidth:1.0f];

[shapeLayer setLineJoin:kCALineJoinRound];

// 3=線的寬度 1=每條線的間距

[shapeLayer setLineDashPattern:

[NSArray arrayWithObjects:[NSNumber numberWithInt:5],

[NSNumber numberWithInt:3],nil]];

// Setup the path

CGMutablePathRef path = CGPathCreateMutable();

CGPathMoveToPoint(path, NULL, 0, 3);

CGPathAddLineToPoint(path, NULL, 45,3);

CGPathMoveToPoint(path, NULL, 45, 3);

CGPathAddLineToPoint(path, NULL,45, 45);

CGPathMoveToPoint(path, NULL,45, 45);

CGPathAddLineToPoint(path, NULL, 0, 45);

CGPathMoveToPoint(path, NULL, 0, 45);

CGPathAddLineToPoint(path, NULL, 0, 3);

[shapeLayer setPath:path];

CGPathRelease(path);

[[view layer] addSublayer:shapeLayer];

}

只需要設置虛線框的四個坐標(左上( 0, 3)、右上( 45, 3)、右下( 45, 45)、左下( 0, 45))。

總結

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