is there any way to changing/auto resizing the font size according to the different iPhone screen as when i change the font size, the font size applied to other phone size as well which is too big.
My Current Phone size is iPhone 6s plus (5.5 inch)
If the font changes, it's because the app you have open changed it, not you. But that doesn't mean you can't edit the text at all. Every iPhone lets you change the font size, making it either bigger or smaller. This is great for users with impaired vision, or with magnified screens.
Go to Settings > Display & Brightness > Display Zoom. Select Larger Text to make all the text on iPhone larger. Tap Done, then tap Use Zoomed.
Please use size classes to support different font size for different screens. Here is good tutorial about using size classes. adaptive-layout-tutorial
I ran in to a similar issue. I suggest to use this library: https://github.com/hamiz-ahmed/SizeOptimizedLabel
Specify the initial screen and font size. The font gets optimized automatically according to different screen sizes.
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With