[Tabs] Fixes layout for changing font sizes. (#7771)

When different font sizes for different states are used, the item view may end up with a different layout or even a different intrinsic content size. Follow-up to #7757
material-components · Jul 2, 2019 · 4842c32 · 4842c32
1 parent 2674c8c
commit 4842c32
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diff --git a/components/Tabs/examples/MDCTabBarViewTypicalExampleViewController.m b/components/Tabs/examples/MDCTabBarViewTypicalExampleViewController.m
@@ -126,6 +126,7 @@ - (void)viewDidLoad {
                         forState:UIControlStateSelected];
   [self.tabBar setTitleFont:self.containerScheme.typographyScheme.button
                    forState:UIControlStateNormal];
+  [self.tabBar setTitleFont:[UIFont systemFontOfSize:16] forState:UIControlStateSelected];
   self.tabBar.selectedItem = item4;
   self.tabBar.translatesAutoresizingMaskIntoConstraints = NO;
   [self.view addSubview:self.tabBar];

diff --git a/components/Tabs/src/TabBarView/MDCTabBarView.m b/components/Tabs/src/TabBarView/MDCTabBarView.m
@@ -305,6 +305,8 @@ - (void)updateTitleFontForAllViews {
     } else {
       tabBarViewItemView.titleLabel.font = [self titleFontForState:UIControlStateNormal];
     }
+    [itemView invalidateIntrinsicContentSize];
+    [itemView setNeedsLayout];
   }
 }