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FreshLayout

FreshLayout SPM

  • Features.

    • Property Wrapper
    • Result Builder
    • Overloading operator
    • DSL/Snapkit syntax
    • Write Unit Test

2. How to use

  • Set Constraints: you can use different method to set constraints to a view.

    • Set Constraints with:

      • makeContraints
      • remakeContraints
      • updateContraints

    Set constraints for a view that haven't constraints:

    titleLabel.fresh.makeContraints { make in
 make.anchorTo(boundsOf: view)
}

    Delete all old constraints and set new constraints:

    titleLabel.fresh.remakeContraints { make in
 make.anchorTo(boundsOf: view)
}

    Update old constraints and set new constraints:

    titleLabel.fresh.updateContraints { make in
 make.anchorTo(boundsOf: view)
}

  • Creation syntax: you can use different method to create constraints to a view.

    • Create constraint with .constraint():

      • default
      • constant
      • multiplier
    titleLabel.fresh.makeContraints { make in
 make.top.constraint(backgroundView.fresh.top, relation: equal)
 make.bottom.constraint(backgroundView.fresh.bottom.constant(20.0), relation: equal)
 make.left.constraint(backgroundView.fresh.bottom.multiplier(0.8), relation: equal)
 make.height.constraint(200, relation: equal)
}

  • Creation syntax: you can use different method to easy set more constraints with only 1 declaration.

    • Create constraint with:

      • anchorTo
      • centerTo
    titleLabel.fresh.makeContraints { make in
 make.anchorTo(boundsOf: view)
}
    titleLabel.fresh.makeContraints { make in
 make.centerTo(boundsOf: view)
}

  • Overloading operator: for improve your code speed.

    • Create constraint with .constraint():

      • == equal to
      • <= less to
      • >= great to
      • + add constant
      • * add multiplier
    titleLabel.fresh.makeContraints { make in
 make.top <= backgroundView.fresh.top + 10.0
 make.height == 100
}

3. Animation

You can use updateContraints for UIView.animate():

titleLabel.fresh.updateContraints { make in
 make.anchorTo(boundsOf: view)
}

remember to use view.layoutIfNeeded() inside the block.