acoomans / ios-magnifyingglass

A magnifying glass for iOS

MagnifyingGlass

ACMagnifyingGlass is a magnifier like the one you can find in the notes iOS app when moving the cursor.

Install

Just copy the files under the MagnifyingGlass directory into your project, including the .h, .m and .png files.

Install with CocoaPods

You can either clone this repository or use CocoaPods to add MagnifyingGlass to your project.

Add a pod entry to your Podfile:

pod 'iOS-MagnifyingGlass', '~> 0.0.2'

Install the pod(s) by running:

pod install

Usage

Simply create a ACMagnifyingView view (with alloc/initWithFrame or from nib) and a magnifier will show up when you tap the screen, magnifying the view and its subviews.

It is possible to use a custom magnifier, like this:

ACMagnifyingGlass *mag = [[ACMagnifyingGlass alloc] initWithFrame:CGRectMake(0, 0, 120, 120)];
mag.scale = 2;
self.magnifyingView.magnifyingGlass = mag;

If you want a loupe like the real one:

ACLoupe *loupe = [[ACLoupe alloc] init];
self.magnifyingView.magnifyingGlass = loupe;

Thanks

This magnifier is inspired by the one from Chadwick Wood

The loupe image was extracted thanks to 0xced

iOS7 loupe contribution by benhirashima

ios-magnifyingglass's Issues

High Volume of Crashes on iOS9 in line: [self.viewToMagnify.layer renderInContext:context];

The bug tracker I'm using is picking up a high number of crashes for iOS9 users, from within the function:

• (void)drawRect:(CGRect)rect

At the last line: [self.viewToMagnify.layer renderInContext:context];

Details of the exception:
Fatal Exception: CALayerInvalidGeometry
sublayer with non-finite position [inf inf]

Any ideas on what is causing the crash? I don't see any crashes in previous versions of iOS. Just 9+ across all device types (iPhone, iPad, iPod Touch).

Thanks,

Chris

Live Camera Feed

Is there some way to have the magnifying view magnify live feed from the camera?

It doesn't seem to magnify anything that is done inside the layers of a view.

magnify on pangesture path

How can i magnify background view when i drag view from one place to another..??
Wherever p view moves the background will be magnified.

landscape mode is not supportet

hey i started my app in landscape mode ...
if i touch down the glass is elsewhere ^^

thx phil

Anyone managed to update to work on iOS 11?

How can i display magnifying Glass at some distance from touch point ?

Add crosshairs?

Great component! Not an issue, but is it possible to add crosshairs in the loupe, as an option? Thanks!