How to zoom text in UitextView using stepper in objective c

Question

i have a UiTextView and UiStepper in Xib and i want to zoom the content of textView by using stepper in objective c.thanks

see this https://stackoverflow.com/questions/17159776/uitextview-and-contentscalefactor — Anbu.Karthik, Jul 12 '17 at 13:09
i am trying to scale the textView size using stepper when i clicked + icon for zoom in and - icon for zoom out in objective c @Anbu.Karthik — Thakur Anil, Jul 14 '17 at 13:27

score 1 · Answer 1 · edited Jul 12 '17 at 16:19

1

For scale(zoom) text

- (void)scaleTextView:(UIPinchGestureRecognizer *)pinchGestRecognizer{
     CGFloat scale = pinchGestRecognizer.scale;

    createTextView.font = [UIFont fontWithName:createTextView.font.fontName size:createTextView.font.pointSize*scale];

    [self textViewDidChange:createTextView];       
}

It scales the font size and then recalculates the content size using your code in textViewDidChange.

edited Jul 12 '17 at 16:19

Sunny

821
6
17

answered Jul 12 '17 at 13:25

Vivek Gajbe

411
2
14

i just mention stepper only. @Vivek Gajbe – Thakur Anil Jul 14 '17 at 13:28

score 0 · Answer 2 · answered Jul 12 '17 at 13:26

Try this :

[stepper addTarget:self action:@selector(stepperValueChanged:) forControlEvents:UIControlEventValueChanged];
stepper.tag = indexPath.row;
stepper.stepValue = 1;
stepper.continuous = YES;
stepper.minimumValue = 0;
stepper.maximumValue = 10;

Selector

- (IBAction)stepperValueChanged:(UIStepper *)sender 
{
  NSUInteger value = sender.value;
    txtView.font = [UIFont systemFontOfSize:value];
}

How to zoom text in UitextView using stepper in objective c

2 Answers2