Problem

UIStackView is a very handy tool to build flow layout, but it's available only when iOS9+, we've found some great compatible replacements like OAStackView, but we want more:

• Perfect downward compatible, no infectivity, use UIStackView directly as if it's shipped from iOS6.
• Interface builder support, live preview.
• Keep layout constraints as closely as UIStackView constructs.

Usage

Import nothing, learn nothing, it just works.

• It will automatically replace the symbol for UIStackView into FDStackView at runtime before iOS9.

objc // Works in iOS6+, use it directly. UIStackView *stackView = [[UIStackView alloc] init]; stackView.axis = UILayoutConstraintAxisHorizontal; stackView.distribution = UIStackViewDistributionFill; stackView.alignment = UIStackViewAlignmentTop; [stackView addArrangedSubview:[[UILabel alloc] init]]; [self.view addSubview:stackView];

• Interface Builder Support

Set Builds for option to iOS 9.0 and later to eliminate the version error in Xcode:

Now, use UIStackView as you like and its reactive options and live preview:

Requirements

• Xcode 7+ (For interface builder supports and the latest Objective-C Syntax)
• Base SDK iOS 9.0+ (To link UIStackView symbol in UIKit)

License: MIT