CODEWITHSUNDEEP
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Mohan Kishor
Mohan Kishor

Reputation: 59

Changing Font Size of UILabel on applying Pinch Gesture

I am creating an app which has a UILabel which can be pinched, rotated. When I pinch in the UILabel, it gets pixelated. How can I resolve this?

Upvotes: 1

Views: 1855

Answers (4)

Usman Nisar
Usman Nisar

Reputation: 3081

I got this to work, try it.

CGFloat maxFontSize;
NSString* string = pTextLabel.text;

UIFont* pfont = [UIFont fontWithName:[pTextLabel font].fontName size:600];
[string sizeWithFont:pfont minFontSize:3 actualFontSize:&maxFontSize forWidth:pTextLabel.frame.size.width - 1 lineBreakMode: UILineBreakModeWordWrap];


UIFont* pStampFont = [UIFont fontWithName:[pTextLabel font].fontName size:maxFontSize];
[pTextLabel setFont:pStampFont];

Upvotes: 0

Eric
Eric

Reputation: 4061

I got this to work, try it. 

pinchScale2 = pinchGesture.scale;
pinchScale2 = round(pinchScale2 * 1000) / 1000.0;

if (pinchScale2 < pinchScale1)
{
        self.UILabel.font = [UIFont fontWithName:self.UILabel.font.fontName size:(self.UILabel.font.pointSize - pinchScale2)];
}
else
{
        self.UILabel.font = [UIFont fontWithName:self.UILabel.font.fontName size:(self.UILabel.font.pointSize + pinchScale2)];
}
pinchScale1 = pinchScale2;

Upvotes: 1

Eric
Eric

Reputation: 4061

Assuming UILabel is property of your viewController: 

CGFloat pinchScale = pinchGesture.scale;
pinchScale = round(pinchScale * 1000) / 1000.0;

if (pinchScale < 1) {
        self.UILabel.font = [UIFont fontWithName:self.UILabel.font.fontName size:(self.UILabel.font.pointSize - pinchScale)];
}
else{
        self.UILabel.font = [UIFont fontWithName:self.UILabel.font.fontName size:(self.UILabel.font.pointSize + pinchScale)];
}

Also, set adjustsFontSizeToFitWidth to YES

Upvotes: 4

spider1983
spider1983

Reputation: 1098

You can get the rounded off scale of the pinchgesture by 

- (void)pinch:(UIPinchGestureRecognizer *)pinchGesture
   {
     CGFloat pinchScale = pinchGesture.scale;
     pinchScale = round(pinchScale * 1000) / 1000.0;

        YourLabel.font = [UIFont fontWithName:@"your font Name" size:Actual Font size+pinchScale];


   }

Try this may this help.

Upvotes: 2

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