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Draw helpful gridlines on your iOS app

Adding GridLock to your app

Add import GridLock to AppDelegate.swift

Replace the var window: UIWindow? in AppDelegate.swift with:

var gridLock = GridLock()
var window: UIWindow? {
    get {
        return gridLock.window
    }
    set { }
}

Activating GridLock

Device

Simply shake your device to activate GridLock, then drag grid lines from left or right of the screen.

Shake your device again to disable GridLock and remove all grid lines.

Simulator

From the Simulator menu choose hardware > shake gesture or

Use the keyboard shortcut ^⌘Z