pspdfkit/com.pspdfkit.ui.navigation/NavigationBackStack

NavigationBackStack

open class NavigationBackStack<T> : Parcelable

Manages a browser like backstack of items.

Constructors

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constructor()

Types

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interface BackStackListener<T>
Listener for changes to the navigation back stack.
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open class NavigationItem<T> : Parcelable
A single item on the navigation backstack.

Properties

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Functions

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open fun addBackStackListener(@NonNull backStackListener: NavigationBackStack.BackStackListener<T>)
Adds a back stack listener to be notified of changes.
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open fun addItem(@NonNull item: T)
Adds a new item depending on if we are currently going back or forward.
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open fun clearBackStackListeners()
Removes all previously added back stack listeners.
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open fun describeContents(): Int
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@Nullable
open fun getBackItem(): T
Returns the current top back item, or null.
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@Nullable
open fun getForwardItem(): T
Returns the current top forward item, or null.
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open fun goBack()
Goes back one step, or does nothing if the stack is already empty.
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open fun goForward()
Goes forward one step, or does nothing if the stack is already empty.
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open fun removeBackStackListener(@NonNull backStackListener: NavigationBackStack.BackStackListener<T>)
Removes the back stack listener.
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open fun replaceWith(@NonNull navigationHistory: NavigationBackStack<T>)
Replaces navigation back stack with another instance.
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open fun resetForwardList()
Removes all forward navigation items.
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open fun writeToParcel(dest: Parcel, flags: Int)