[FlexibleHeader] Delete the unused canAlwaysExpandToMaximumHeight API.

PiperOrigin-RevId: 457775121

MaterialComponents.podspec

@@ -838,18 +838,6 @@ Pod::Spec.new do |mdc|
     extension.dependency "MaterialComponents/FlexibleHeader+ShiftBehavior"
   end
 
-  mdc.subspec "FlexibleHeader+CanAlwaysExpandToMaximumHeight" do |extension|
-    extension.ios.deployment_target = '10.0'
-    extension.public_header_files = [
-      "components/#{extension.base_name.split('+')[0]}/src/#{extension.base_name.split('+')[1]}/*.h"
-    ]
-    extension.source_files = [
-      "components/#{extension.base_name.split('+')[0]}/src/#{extension.base_name.split('+')[1]}/*.{h,m}"
-    ]
-
-    extension.dependency "MaterialComponents/#{extension.base_name.split('+')[0]}"
-  end
-
   # HeaderStackView
 
   mdc.subspec "HeaderStackView" do |component|

components/AppBar/examples/AppBarAnimatedGlitchExample.swift

@@ -16,7 +16,6 @@ import CoreGraphics
 import UIKit
 import MaterialComponents.MaterialAppBar
 import MaterialComponents.MaterialAppBar_Theming 
-import MaterialComponents.MaterialFlexibleHeader_CanAlwaysExpandToMaximumHeight 
 import MaterialComponents.MaterialTabs
 import MaterialComponents.MaterialContainerScheme
 
@@ -159,7 +158,6 @@ class AppBarAnimatedJumpExample: UIViewController {
     // Give the tab bar enough height to accomodate all possible item appearances.
     appBarViewController.headerView.minMaxHeightIncludesSafeArea = false
     appBarViewController.inferTopSafeAreaInsetFromViewController = true
-    appBarViewController.headerView.canAlwaysExpandToMaximumHeight = true
     appBarViewController.headerView.sharedWithManyScrollViews = true
 
     appBarViewController.headerView.minimumHeight = 56

components/AppBar/examples/AppBarGlitchExample.swift

@@ -16,7 +16,6 @@ import CoreGraphics
 import UIKit
 import MaterialComponents.MaterialAppBar
 import MaterialComponents.MaterialAppBar_Theming 
-import MaterialComponents.MaterialFlexibleHeader_CanAlwaysExpandToMaximumHeight 
 import MaterialComponents.MaterialTabs
 import MaterialComponents.MaterialContainerScheme
 
@@ -115,7 +114,6 @@ class AppBarJumpExample: UIViewController {
     // Give the tab bar enough height to accomodate all possible item appearances.
     appBarViewController.headerView.minMaxHeightIncludesSafeArea = false
     appBarViewController.inferTopSafeAreaInsetFromViewController = true
-    appBarViewController.headerView.canAlwaysExpandToMaximumHeight = true
     appBarViewController.headerView.sharedWithManyScrollViews = true
 
     appBarViewController.headerView.minimumHeight = 56

components/AppBar/examples/AppBarInheritedAnimatedJumpExample.swift

@@ -16,7 +16,6 @@ import CoreGraphics
 import UIKit
 import MaterialComponents.MaterialAppBar
 import MaterialComponents.MaterialAppBar_Theming 
-import MaterialComponents.MaterialFlexibleHeader_CanAlwaysExpandToMaximumHeight 
 import MaterialComponents.MaterialTabs
 import MaterialComponents.MaterialContainerScheme
 
@@ -159,7 +158,6 @@ class AppBarInheritedAnimatedJumpExample: UIViewController {
     // Give the tab bar enough height to accommodate all possible item appearances.
     appBarViewController.headerView.minMaxHeightIncludesSafeArea = false
     appBarViewController.inferTopSafeAreaInsetFromViewController = true
-    appBarViewController.headerView.canAlwaysExpandToMaximumHeight = true
     appBarViewController.headerView.sharedWithManyScrollViews = true
 
     appBarViewController.headerView.minimumHeight = 56

components/AppBar/examples/AppBarManualTabsExample.swift

@@ -16,15 +16,12 @@ import CoreGraphics
 import UIKit
 import MaterialComponents.MaterialAppBar
 import MaterialComponents.MaterialAppBar_Theming 
-import MaterialComponents.MaterialFlexibleHeader_CanAlwaysExpandToMaximumHeight 
 import MaterialComponents.MaterialTabs
 import MaterialComponents.MaterialContainerScheme
 
 // An example that demonstrates the behavior of an App Bar with Tabs and manually swapped tab view
 // controllers. This example is distinct from a typical tab bar view controller in that it does not
-// make use of a horizontally-paging scroll view. This example also makes use of the
-// canAlwaysExpandToMaximumHeight API to allow the header to maintain its expanded state when
-// swapping between tabs.
+// make use of a horizontally-paging scroll view.
 class AppBarManualTabsExample: UIViewController {
 
   lazy var appBarViewController: MDCAppBarViewController = self.makeAppBar()
@@ -119,7 +116,6 @@ class AppBarManualTabsExample: UIViewController {
     // Give the tab bar enough height to accomodate all possible item appearances.
     appBarViewController.headerView.minMaxHeightIncludesSafeArea = false
     appBarViewController.inferTopSafeAreaInsetFromViewController = true
-    appBarViewController.headerView.canAlwaysExpandToMaximumHeight = true
     appBarViewController.headerView.sharedWithManyScrollViews = true
 
     appBarViewController.headerView.minimumHeight = 56

components/FlexibleHeader/examples/FlexibleHeaderConfiguratorExample.m

@@ -14,9 +14,12 @@
 
 #import <UIKit/UIKit.h>
 
-#import "MaterialFlexibleHeader+CanAlwaysExpandToMaximumHeight.h"
-#import "MaterialFlexibleHeader.h"
-#import "MaterialFlexibleHeader+ShiftBehaviorEnabledWithStatusBar.h"
+#import "MDCFlexibleHeaderView+ShiftBehavior.h"
+#import "MDCFlexibleHeaderView.h"
+#import "MDCFlexibleHeaderViewController.h"
+#import "MDCFlexibleHeaderViewLayoutDelegate.h"
+#import "MDCFlexibleHeaderShiftBehavior.h"
+#import "MDCFlexibleHeaderShiftBehaviorEnabledWithStatusBar.h"
 
 #import "supplemental/FlexibleHeaderConfiguratorControlItem.h"
 
@@ -35,7 +38,6 @@
   FlexibleHeaderConfiguratorFieldMinimumHeight,
   FlexibleHeaderConfiguratorFieldMaximumHeight,
   FlexibleHeaderConfiguratorFieldMinMaxHeightIncludeSafeArea,
-  FlexibleHeaderConfiguratorFieldCanAlwaysExpandToMaximumHeight,
 } FlexibleHeaderConfiguratorField;
 
 static const UITableViewStyle kStyle = UITableViewStyleGrouped;
@@ -168,10 +170,6 @@ - (void)field:(FlexibleHeaderConfiguratorField)field didChangeValue:(NSNumber *)
     case FlexibleHeaderConfiguratorFieldMinMaxHeightIncludeSafeArea:
       headerView.minMaxHeightIncludesSafeArea = [value boolValue];
       break;
-
-    case FlexibleHeaderConfiguratorFieldCanAlwaysExpandToMaximumHeight:
-      headerView.canAlwaysExpandToMaximumHeight = [value boolValue];
-      break;
   }
 }
 
@@ -280,9 +278,6 @@ - (NSNumber *)valueForField:(FlexibleHeaderConfiguratorField)field {
 
     case FlexibleHeaderConfiguratorFieldMinMaxHeightIncludeSafeArea:
       return @(self.fhvc.headerView.minMaxHeightIncludesSafeArea);
-
-    case FlexibleHeaderConfiguratorFieldCanAlwaysExpandToMaximumHeight:
-      return @(self.fhvc.headerView.canAlwaysExpandToMaximumHeight);
   }
 }
 
@@ -426,8 +421,6 @@ - (void)viewDidLoad {
     sliderItem(@"Maximum", FlexibleHeaderConfiguratorFieldMaximumHeight),
     switchItem(@"Min / max height includes Safe Area",
                FlexibleHeaderConfiguratorFieldMinMaxHeightIncludeSafeArea),
-    switchItem(@"Can always expand to maximum height",
-               FlexibleHeaderConfiguratorFieldCanAlwaysExpandToMaximumHeight)
   ]);
 
   NSMutableArray *fillerItems = [NSMutableArray array];