iPhone SDK: How to make a label view a cgpoint?

Question

I have a CGPoint:

ballVelocity = CGPointMake(kBallSpeedX,kBallSpeedX);

and i would like a label (xVelocityLabel) to view the "ballVelocity.x" value of the CGPoint. I have tried:

[xVelocityLabel setText:[NSString stringWithFormat:@"%@", ballVelocity.x]];

Thanks for your help because I am new to this.

Answer 1

Just change '%f' instead of '%@'.

[xVelocityLabel setText:[NSString stringWithFormat:@"%f", ballVelocity.x]];

I think it will be helpful to you.

Answer 2

[xVelocityLabel setText:NSStringFromCGPoint(ballVelocity)];

Answer 3

ballVelocity.x // this is a float value.

So you have to convert it in NSString before set it on UILabel.

for set a value on xVelocityLabel, the value should be in string format. see this conversion-

NSString *strNumber = [[NSNumber numberWithFloat:ballVelocity.x] stringValue];

[xVelocityLabel setText:strNumber];

Thank you!