condition 0.0.3

This package contains Widgets that will let you show a child Widget based on provided conditions.

package: condition

A package that contains a set of Widgets to remove ugly if and if else statements from your layout code.

Usage

Simple boolean checks

For simple true/false checks you can use the Condition Widget. It will not reduce your lines of code, it does however make it more readable by using the same syntax as you'd use for the rest of your layout code.

Sample without Condition

myNumber > 50
  ? Text(
      'The condition is true!',
      style: TextStyle(color: Colors.green[200]),
    )
  : Text(
      'The condition is false!',
      style: TextStyle(color: Colors.green[800]),
    ),

Sample with Condition

Condition(
    condition: myNumber > 50,
    whenTrue: Text(
      'The condition is true!',
      style: TextStyle(color: Colors.orange[200]),
    ),
    whenFalse: Text(
      'The condition is false!',
      style: TextStyle(color: Colors.orange[800]),
    ),
),

Multiple cases

When you want to add a specific child based on a condition you can avoid the if, else if and else drama by using the MatchCondition Widget.

Sample without MatchCondition

if (myNumber < 25)
  Icon(Icons.ac_unit)
else if (myNumber < 50)
  Icon(Icons.beach_access)
else if (myNumber < 75)
    Icon(Icons.wb_cloudy)
else
  Icon(Icons.wb_sunny),

Sample with MatchCondition

MatchCondition(
    cases: [
      Case(condition: myNumber < 25, widget: Icon(Icons.ac_unit)),
      Case(condition: myNumber < 50, widget: Icon(Icons.beach_access)),
      Case(condition: myNumber < 75, widget: Icon(Icons.wb_cloudy)),
    ],
    elseCase: Icon(Icons.wb_sunny),
  ),