Changing Color of Labels Help

[Frankie]

How do I change the color of a Label when it reaches a certain point?

I have this equation and the Label switches to the answer. But when the answers reaches certain points I want the label to change color. How do I go about doing so?

[rdominelli]

Originally Posted by Frankie

How do I change the color of a Label when it reaches a certain point?

I have this equation and the Label switches to the answer. But when the answers reaches certain points I want the label to change color. How do I go about doing so?

UILabel *mylabel; // Connected in IB to a field on the form.

When the state reaches the time you want to change the color on

[mylabel setTextColor:[UIColor redColor]]; // Foreground color
[mylabel setBackgroundColor:[UIColor redColor]]; // Background color

Check the api docs for the other color values and how to roll your own.


Hope this helps.
Rich

[Frankie]

Originally Posted by rdominelli

UILabel *mylabel; // Connected in IB to a field on the form.

When the state reaches the time you want to change the color on

[mylabel setTextColor:[UIColor redColor]]; // Foreground color
[mylabel setBackgroundColor:[UIColor redColor]]; // Background color

Check the api docs for the other color values and how to roll your own.


Hope this helps.
Rich

So if I have this.

float tipTotal = tipSelected * 3.8 / [billTotal.text floatValue];
tipAmount.text = [NSString stringWithFormat:@"Tip Percentage: %.2f%", tipTotal];

How do i get it to change to red every time it reaches 20 and up but remain green only on 1-19?

Also thanks for the reply Rich!

[rdominelli]

Originally Posted by Frankie

So if I have this.

float tipTotal = tipSelected * 3.8 / [billTotal.text floatValue];
tipAmount.text = [NSString stringWithFormat:@"Tip Percentage: %.2f%", tipTotal];

How do i get it to change to red every time it reaches 20 and up but remain green only on 1-19?

Also thanks for the reply Rich!

Assuming tipAmount is your label.

if (tipTotal > 20)
{
[tipAmount setTextColor:[UIColor redColor]];
}

You might need to also do
[tipTotal setNeedsDisplay];

To make sure the color change is shown. This will force a repaint of the label.

Rich

[Frankie]

Originally Posted by rdominelli

Assuming tipAmount is your label.

if (tipTotal > 20)
{
[tipAmount setTextColor:[UIColor redColor]];
}

You might need to also do
[tipTotal setNeedsDisplay];

To make sure the color change is shown. This will force a repaint of the label.

Rich

That did it! Thanks Rich.