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Android APIs
public final class

Space

extends View
java.lang.Object
   ↳ android.view.View
     ↳ android.widget.Space

Class Overview

Space is a lightweight View subclass that may be used to create gaps between components in general purpose layouts.

Summary

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Inherited XML Attributes
From class android.view.View
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Inherited Constants
From class android.view.View
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Inherited Fields
From class android.view.View
Public Constructors
Space ( Context context, AttributeSet attrs, int defStyle)
Space ( Context context, AttributeSet attrs)
Space ( Context context)
Public Methods
void draw ( Canvas canvas)
Draw nothing.
Protected Methods
void onMeasure (int widthMeasureSpec, int heightMeasureSpec)

Measure the view and its content to determine the measured width and the measured height.

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Inherited Methods
From class android.view.View
From class java.lang.Object
From interface android.graphics.drawable.Drawable.Callback
From interface android.view.KeyEvent.Callback
From interface android.view.accessibility.AccessibilityEventSource

Public Constructors

public Space ( Context context, AttributeSet attrs, int defStyle)

public Space ( Context context, AttributeSet attrs)

public Space ( Context context)

Public Methods

public void draw ( Canvas canvas)

Draw nothing.

Parameters
canvas an unused parameter.

Protected Methods

protected void onMeasure (int widthMeasureSpec, int heightMeasureSpec)

Measure the view and its content to determine the measured width and the measured height. This method is invoked by measure(int, int) and should be overriden by subclasses to provide accurate and efficient measurement of their contents.

CONTRACT: When overriding this method, you must call setMeasuredDimension(int, int) to store the measured width and height of this view. Failure to do so will trigger an IllegalStateException , thrown by measure(int, int) . Calling the superclass' onMeasure(int, int) is a valid use.

The base class implementation of measure defaults to the background size, unless a larger size is allowed by the MeasureSpec. Subclasses should override onMeasure(int, int) to provide better measurements of their content.

If this method is overridden, it is the subclass's responsibility to make sure the measured height and width are at least the view's minimum height and width ( getSuggestedMinimumHeight() and getSuggestedMinimumWidth() ).

Parameters
widthMeasureSpec horizontal space requirements as imposed by the parent. The requirements are encoded with View.MeasureSpec .
heightMeasureSpec vertical space requirements as imposed by the parent. The requirements are encoded with View.MeasureSpec .