added in API level 1

Summary: Methods | Inherited Methods | [Expand All]

FocusFinder

public class FocusFinder
extends Object

java.lang.Object
↳	android.view.FocusFinder

The algorithm used for finding the next focusable view in a given direction from a view that currently has focus.

Summary

Public methods
`View`	`findNearestTouchable(ViewGroup root, int x, int y, int direction, int[] deltas)` Find the nearest touchable view to the specified view.
`final View`	`findNextFocus(ViewGroup root, View focused, int direction)` Find the next view to take focus in root's descendants, starting from the view that currently is focused.
`View`	`findNextFocusFromRect(ViewGroup root, Rect focusedRect, int direction)` Find the next view to take focus in root's descendants, searching from a particular rectangle in root's coordinates.
`View`	`findNextKeyboardNavigationCluster(View root, View currentCluster, int direction)` Find the root of the next keyboard navigation cluster after the current one.
`static FocusFinder`	`getInstance()` Get the focus finder for this thread.

Inherited methods

From class


  
    java.lang.Object

`Object`	`clone()` Creates and returns a copy of this object.
`boolean`	`equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void`	`finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>`	`getClass()` Returns the runtime class of this `Object`.
`int`	`hashCode()` Returns a hash code value for the object.
`final void`	`notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()` Returns a string representation of the object.
`final void`	`wait(long millis, int nanos)` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.
`final void`	`wait(long millis)` Causes the current thread to wait until either another thread invokes the `notify()` method or the `notifyAll()` method for this object, or a specified amount of time has elapsed.
`final void`	`wait()` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object.

Public methods

findNearestTouchable

added in API level 1

View findNearestTouchable (ViewGroup root, 
                int x, 
                int y, 
                int direction, 
                int[] deltas)

Find the nearest touchable view to the specified view.

Parameters
`root`	`ViewGroup`: The root of the tree in which to search
`x`	`int`: X coordinate from which to start the search
`y`	`int`: Y coordinate from which to start the search
`direction`	`int`: Direction to look
`deltas`	`int`: Offset from the to the edge of the nearest view. Note that this array may already be populated with values.

Returns
`View`	The nearest touchable view, or null if none exists.

findNextFocus

added in API level 1

View findNextFocus (ViewGroup root, 
                View focused, 
                int direction)

Find the next view to take focus in root's descendants, starting from the view that currently is focused.

Parameters
`root`	`ViewGroup`: Contains focused. Cannot be null.
`focused`	`View`: Has focus now.
`direction`	`int`: Direction to look.

Returns
`View`	The next focusable view, or null if none exists.

findNextFocusFromRect

added in API level 1

View findNextFocusFromRect (ViewGroup root, 
                Rect focusedRect, 
                int direction)

Find the next view to take focus in root's descendants, searching from a particular rectangle in root's coordinates.

Parameters
`root`	`ViewGroup`: Contains focusedRect. Cannot be null.
`focusedRect`	`Rect`: The starting point of the search.
`direction`	`int`: Direction to look.

Returns
`View`	The next focusable view, or null if none exists.

findNextKeyboardNavigationCluster

Android O Developer Preview

View findNextKeyboardNavigationCluster (View root, 
                View currentCluster, 
                int direction)

Find the root of the next keyboard navigation cluster after the current one.

Parameters
`root`	`View`: The view tree to look inside. Cannot be null This value must never be `null`.
`currentCluster`	`View`: The starting point of the search. Null means the default cluster This value may be `null`.
`direction`	`int`: Direction to look

Returns
`View`	The next cluster, or null if none exists

getInstance

added in API level 1

FocusFinder getInstance ()

Get the focus finder for this thread.

Returns
`FocusFinder`

Most visited

Recently visited

Results for

FocusFinder

Summary

Public methods

Inherited methods

Public methods

findNearestTouchable

findNextFocus

findNextFocusFromRect

findNextKeyboardNavigationCluster

getInstance

Annotations

Interfaces

Classes

Enums

Exceptions