Ejemplo n.º 1
0
        public void TestThatLayoutIsCorrectWhenWeSwapViewOrder()
        {
            var containerSize = new SizeF(300, 50);

            var container = new NativeView(new CGRect(0, 0, containerSize.Width, containerSize.Height));

            container.Yoga().IsEnabled     = true;
            container.Yoga().FlexDirection = YogaFlexDirection.Row;

            var subview1 = new NativeView();

            subview1.Yoga().IsEnabled = true;
            subview1.Yoga().FlexGrow  = 1;
            container.AddSubview(subview1);

            var subview2 = new NativeView();

            subview2.Yoga().IsEnabled = true;
            subview2.Yoga().FlexGrow  = 1;
            container.AddSubview(subview2);

            var subview3 = new NativeView();

            subview3.Yoga().IsEnabled = true;
            subview3.Yoga().FlexGrow  = 1;
            container.AddSubview(subview3);

            container.Yoga().ApplyLayout();

            Assert.True(subview1.Frame == new CGRect(0, 0, 100, 50));
            Assert.True(subview2.Frame == new CGRect(100, 0, 100, 50), $"It's actually {subview2.Frame}");
            Assert.True(subview3.Frame == new CGRect(200, 0, 100, 50));

            container.ExchangeSubview(2, 0);
            subview2.Yoga().IsIncludeInLayout = false;
            container.Yoga().ApplyLayout();

            Assert.True(subview3.Frame == new CGRect(0, 0, 150, 50));
            Assert.True(subview1.Frame == new CGRect(150, 0, 150, 50));
            //// this frame shouldn't have been modified since last time.
            Assert.True(subview2.Frame == new CGRect(100, 0, 100, 50));
        }