GridLayoutManager.DefaultSpanSizeLookup

Default implementation for GridLayoutManager.SpanSizeLookup. Each item occupies 1 span.

Summary

Public Constructors
	GridLayoutManager.DefaultSpanSizeLookup()

Public Constructors

GridLayoutManager.DefaultSpanSizeLookup()

Public Methods
int	getSpanIndex(int position, int spanCount) Returns the final span index of the provided position.
int	getSpanSize(int position) Returns the number of span occupied by the item at `position`.

Public Methods

int

getSpanIndex(int position, int spanCount)

Returns the final span index of the provided position.

int

getSpanSize(int position)

Returns the number of span occupied by the item at position.

[Expand]

Inherited Methods

From class android.support.v7.widget.GridLayoutManager.SpanSizeLookup

From class java.lang.Object

Object	clone() Creates and returns a copy of this `Object`.
boolean	equals(Object o) Compares this instance with the specified object and indicates if they are equal.
void	finalize() Invoked when the garbage collector has detected that this instance is no longer reachable.
final Class<?>	getClass() Returns the unique instance of `Class` that represents this object's class.
int	hashCode() Returns an integer hash code for this object.
final void	notify() Causes a thread which is waiting on this object's monitor (by means of calling one of the `wait()` methods) to be woken up.
final void	notifyAll() Causes all threads which are waiting on this object's monitor (by means of calling one of the `wait()` methods) to be woken up.
String	toString() Returns a string containing a concise, human-readable description of this object.
final void	wait() Causes the calling thread to wait until another thread calls the `notify()` or `notifyAll()` method of this object.
final void	wait(long millis, int nanos) Causes the calling thread to wait until another thread calls the `notify()` or `notifyAll()` method of this object or until the specified timeout expires.
final void	wait(long millis) Causes the calling thread to wait until another thread calls the `notify()` or `notifyAll()` method of this object or until the specified timeout expires.

Public Methods

public int getSpanIndex (int position, int spanCount)

Returns the final span index of the provided position.

If you have a faster way to calculate span index for your items, you should override this method. Otherwise, you should enable span index cache (setSpanIndexCacheEnabled(boolean)) for better performance. When caching is disabled, default implementation traverses all items from 0 to position. When caching is enabled, it calculates from the closest cached value before the position.

If you override this method, you need to make sure it is consistent with getSpanSize(int). GridLayoutManager does not call this method for each item. It is called only for the reference item and rest of the items are assigned to spans based on the reference item. For example, you cannot assign a position to span 2 while span 1 is empty.

Note that span offsets always start with 0 and are not affected by RTL.

Parameters

position	The position of the item
spanCount	The total number of spans in the grid

Returns

The final span position of the item. Should be between 0 (inclusive) and spanCount(exclusive)

public int getSpanSize (int position)

Returns the number of span occupied by the item at position.

Parameters

position	The adapter position of the item

Returns

The number of spans occupied by the item at the provided position

java.lang.Object
↳	android.support.v7.widget.GridLayoutManager.SpanSizeLookup
	↳	android.support.v7.widget.GridLayoutManager.DefaultSpanSizeLookup

Results

Interfaces

Classes

Class Overview

Summary

Public Constructors

public GridLayoutManager.DefaultSpanSizeLookup ()

Public Methods

public int getSpanIndex (int position, int spanCount)

Parameters

Returns

public int getSpanSize (int position)

Parameters

Returns