to top
Android APIs
public class

AnalogClock

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

Class Overview

This widget display an analogic clock with two hands for hours and minutes.

Summary

XML Attributes
Attribute Name Related Method Description
android:dial  
android:hand_hour  
android:hand_minute  
[Expand]
Inherited XML Attributes
From class android.view.View
[Expand]
Inherited Constants
From class android.view.View
[Expand]
Inherited Fields
From class android.view.View
Public Constructors
AnalogClock(Context context)
AnalogClock(Context context, AttributeSet attrs)
AnalogClock(Context context, AttributeSet attrs, int defStyle)
Protected Methods
void onAttachedToWindow()
This is called when the view is attached to a window.
void onDetachedFromWindow()
This is called when the view is detached from a window.
void onDraw(Canvas canvas)
Implement this to do your drawing.
void onMeasure(int widthMeasureSpec, int heightMeasureSpec)

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

void onSizeChanged(int w, int h, int oldw, int oldh)
This is called during layout when the size of this view has changed.
[Expand]
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

XML Attributes

android:dial

Related Methods

android:hand_hour

Related Methods

android:hand_minute

Related Methods

Public Constructors

public AnalogClock (Context context)

Added in API level 1

public AnalogClock (Context context, AttributeSet attrs)

Added in API level 1

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

Added in API level 1

Protected Methods

protected void onAttachedToWindow ()

Added in API level 1

This is called when the view is attached to a window. At this point it has a Surface and will start drawing. Note that this function is guaranteed to be called before onDraw(android.graphics.Canvas), however it may be called any time before the first onDraw -- including before or after onMeasure(int, int).

protected void onDetachedFromWindow ()

Added in API level 1

This is called when the view is detached from a window. At this point it no longer has a surface for drawing.

protected void onDraw (Canvas canvas)

Added in API level 1

Implement this to do your drawing.

Parameters
canvas the canvas on which the background will be drawn

protected void onMeasure (int widthMeasureSpec, int heightMeasureSpec)

Added in API level 1

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.

protected void onSizeChanged (int w, int h, int oldw, int oldh)

Added in API level 1

This is called during layout when the size of this view has changed. If you were just added to the view hierarchy, you're called with the old values of 0.

Parameters
w Current width of this view.
h Current height of this view.
oldw Old width of this view.
oldh Old height of this view.