Updating extensions for iOS 13

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Revision as of 18:51, 14 March 2020 by Cynder (talk | contribs) (What has changed in iOS 13? (Classes, frameworks, etc.): Add a few little things from research)
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What has changed in iOS 13? (Classes, frameworks, etc.)


This class was removed entirely with iOS 13. Root Icon Lists are now instances of SBIconListView

Home Screen Layout


Layout handling in iOS 13 now uses SBIconListFlowLayouts. These are provided by an instance of SBHDefaultIconListLayoutProvider.

This alone handles row/column count. It also contains a SBIconListGridLayoutConfiguration, which controls the spacing and location of icons.


This class contains several properties that can be modified to alter the layout.

Selectors of interest include portraitLayoutInsets and landscapeLayoutInsets. These return an instance of UIEdgeInsets that can be used to manipulate layout.

Generating an apps icon image

Previously an icon image could be generated from an icon object like so

SBIcon *icon = someIcon;
UIImage *iconImage = [icon generateIconImage:2];

In iOS 13 this method was changed to -generateIconImageWithInfo:(struct SBIconImageInfo)info

struct SBIconImageInfo {
    CGSize size;
    CGFloat scale;
    CGFloat continuousCornerRadius;
SBIconController *iconController = [NSClassFromString(@"SBIconController") sharedInstance];
SBIcon *icon = [iconController.model expectedIconForDisplayIdentifier:@"com.apple.Music"];

CGSize imageSize = CGSizeMake(60, 60);

struct SBIconImageInfo imageInfo;
imageInfo.size  = imageSize;
imageInfo.scale = [UIScreen mainScreen].scale;
imageInfo.continuousCornerRadius = 12;

UIImage *iconImage = [icon generateIconImageWithInfo:imageInfo];

UIDevice issue

[UIDevice currentDevice] may causes some process crashes when it called in %ctor

To reproduce that, add this to your tweak, then change your wallpaper via Settings. The device gets stuck and reboot.

%ctor {
   NSLog(@"[UIDevice currrentDevice] is %@", [UIDevice currentDevice]);