Most visited

Recently visited

Results for

Summary: Nested Classes | Constants | Ctors | Methods | Inherited Methods

Toast

public class Toast
extends Object

java.lang.Object
↳	android.widget.Toast

A toast is a view containing a quick little message for the user. The toast class helps you create and show those.

When the view is shown to the user, appears as a floating view over the application. It will never receive focus. The user will probably be in the middle of typing something else. The idea is to be as unobtrusive as possible, while still showing the user the information you want them to see. Two examples are the volume control, and the brief message saying that your settings have been saved.

The easiest way to use this class is to call one of the static methods that constructs everything you need and returns a new Toast object.

Note that Snackbars are preferred for brief messages while the app is in the foreground.

Developer Guides

For information about creating Toast notifications, read the Toast Notifications developer guide.

Summary

Nested classes
`class`	`Toast.Callback` Callback object to be called when the toast is shown or hidden.

Constants
`int`	`LENGTH_LONG` Show the view or text notification for a long period of time.
`int`	`LENGTH_SHORT` Show the view or text notification for a short period of time.

Public constructors
`Toast(Context context)` Construct an empty Toast object.

Public methods
`void`	`addCallback(Toast.Callback callback)` Adds a callback to be notified when the toast is shown or hidden.
`void`	`cancel()` Close the view if it's showing, or don't show it if it isn't showing yet.
`int`	`getDuration()` Return the duration.
`int`	`getGravity()` Get the location at which the notification should appear on the screen.
`float`	`getHorizontalMargin()` Return the horizontal margin.
`float`	`getVerticalMargin()` Return the vertical margin.
`View`	`getView()` This method is deprecated. Custom toast views are deprecated. Apps can create a standard text toast with the `makeText(android.content.Context, java.lang.CharSequence, int)` method, or use a Snackbar when in the foreground. Starting from Android `Build.VERSION_CODES#R`, apps targeting API level `Build.VERSION_CODES#R` or higher that are in the background will not have custom toast views displayed.
`int`	`getXOffset()` Return the X offset in pixels to apply to the gravity's location.
`int`	`getYOffset()` Return the Y offset in pixels to apply to the gravity's location.
`static Toast`	`makeText(Context context, int resId, int duration)` Make a standard toast that just contains text from a resource.
`static Toast`	`makeText(Context context, CharSequence text, int duration)` Make a standard toast that just contains text.
`void`	`removeCallback(Toast.Callback callback)` Removes a callback previously added with `addCallback(android.widget.Toast.Callback)`.
`void`	`setDuration(int duration)` Set how long to show the view for.
`void`	`setGravity(int gravity, int xOffset, int yOffset)` Set the location at which the notification should appear on the screen.
`void`	`setMargin(float horizontalMargin, float verticalMargin)` Set the margins of the view.
`void`	`setText(int resId)` Update the text in a Toast that was previously created using one of the makeText() methods.
`void`	`setText(CharSequence s)` Update the text in a Toast that was previously created using one of the makeText() methods.
`void`	`setView(View view)` This method is deprecated. Custom toast views are deprecated. Apps can create a standard text toast with the `makeText(android.content.Context, java.lang.CharSequence, int)` method, or use a Snackbar when in the foreground. Starting from Android `Build.VERSION_CODES#R`, apps targeting API level `Build.VERSION_CODES#R` or higher that are in the background will not have custom toast views displayed.
`void`	`show()` Show the view for the specified duration.

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 timeout, 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 timeout)` 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.

Constants

LENGTH_LONG

public static final int LENGTH_LONG

Show the view or text notification for a long period of time. This time could be user-definable.

See also:

setDuration(int)

Constant Value: 1 (0x00000001)

LENGTH_SHORT

public static final int LENGTH_SHORT

Show the view or text notification for a short period of time. This time could be user-definable. This is the default.

See also:

setDuration(int)

Constant Value: 0 (0x00000000)

Public constructors

Toast

public Toast (Context context)

Construct an empty Toast object. You must call setView(View) before you can call show().

Parameters
`context`	`Context`: The context to use. Usually your `Application` or `Activity` object.

Public methods

public void addCallback (Toast.Callback callback)

Adds a callback to be notified when the toast is shown or hidden. Note that if the toast is blocked for some reason you won't get a call back.

Parameters
`callback`	`Toast.Callback`: This value cannot be `null`.

See also:

removeCallback(Callback)

cancel

public void cancel ()

Close the view if it's showing, or don't show it if it isn't showing yet. You do not normally have to call this. Normally view will disappear on its own after the appropriate duration.

getDuration

public int getDuration ()

Return the duration.

Returns
`int`	Value is `LENGTH_SHORT`, or `LENGTH_LONG`

See also:

setDuration(int)

getGravity

public int getGravity ()

Get the location at which the notification should appear on the screen.

Warning: Starting from Android Build.VERSION_CODES#R, for apps targeting API level Build.VERSION_CODES#R or higher, this method shouldn't be called on text toasts as its return value may not reflect actual value since text toasts are not rendered by the app anymore.

Returns
`int`

See also:

Gravity
getGravity()

getHorizontalMargin

public float getHorizontalMargin ()

Return the horizontal margin.

Returns
`float`

getVerticalMargin

public float getVerticalMargin ()

Return the vertical margin.

Returns
`float`

getView

public View getView ()

This method is deprecated.
Custom toast views are deprecated. Apps can create a standard text toast with the makeText(android.content.Context, java.lang.CharSequence, int) method, or use a Snackbar when in the foreground. Starting from Android Build.VERSION_CODES#R, apps targeting API level Build.VERSION_CODES#R or higher that are in the background will not have custom toast views displayed.

Return the view.

Toasts constructed with Toast(android.content.Context) that haven't called setView(android.view.View) with a non-null view will return null here.

Starting from Android Build.VERSION_CODES#R, in apps targeting API level Build.VERSION_CODES#R or higher, toasts constructed with makeText(android.content.Context, java.lang.CharSequence, int) or its variants will also return null here unless they had called setView(android.view.View) with a non-null view. If you want to be notified when the toast is shown or hidden, use addCallback(android.widget.Toast.Callback).

Returns
`View`

See also:

setView(View)

getXOffset

public int getXOffset ()

Return the X offset in pixels to apply to the gravity's location.

Returns
`int`

getYOffset

public int getYOffset ()

Return the Y offset in pixels to apply to the gravity's location.

Returns
`int`

makeText

public static Toast makeText (Context context, 
                int resId, 
                int duration)

Make a standard toast that just contains text from a resource.

Parameters
`context`	`Context`: The context to use. Usually your `Application` or `Activity` object.
`resId`	`int`: The resource id of the string resource to use. Can be formatted text.
`duration`	`int`: How long to display the message. Either `LENGTH_SHORT` or `LENGTH_LONG` Value is `LENGTH_SHORT`, or `LENGTH_LONG`

Returns
`Toast`

Throws
`Resources.NotFoundException`	if the resource can't be found.

makeText

public static Toast makeText (Context context, 
                CharSequence text, 
                int duration)

Make a standard toast that just contains text.

Parameters
`context`	`Context`: The context to use. Usually your `Application` or `Activity` object.
`text`	`CharSequence`: The text to show. Can be formatted text.
`duration`	`int`: How long to display the message. Either `LENGTH_SHORT` or `LENGTH_LONG` Value is `LENGTH_SHORT`, or `LENGTH_LONG`

Returns
`Toast`

public void removeCallback (Toast.Callback callback)

Removes a callback previously added with addCallback(android.widget.Toast.Callback).

Parameters
`callback`	`Toast.Callback`: This value cannot be `null`.

setDuration

public void setDuration (int duration)

Set how long to show the view for.

Parameters
`duration`	`int`: Value is `LENGTH_SHORT`, or `LENGTH_LONG`

See also:

LENGTH_SHORT
LENGTH_LONG

setGravity

public void setGravity (int gravity, 
                int xOffset, 
                int yOffset)

Set the location at which the notification should appear on the screen.

Warning: Starting from Android Build.VERSION_CODES#R, for apps targeting API level Build.VERSION_CODES#R or higher, this method is a no-op when called on text toasts.

Parameters
`gravity`	`int`
`xOffset`	`int`
`yOffset`	`int`

See also:

Gravity
getGravity()

setMargin

public void setMargin (float horizontalMargin, 
                float verticalMargin)

Set the margins of the view.

Warning: Starting from Android Build.VERSION_CODES#R, for apps targeting API level Build.VERSION_CODES#R or higher, this method is a no-op when called on text toasts.

Parameters
`horizontalMargin`	`float`: The horizontal margin, in percentage of the container width, between the container's edges and the notification
`verticalMargin`	`float`: The vertical margin, in percentage of the container height, between the container's edges and the notification

setText

public void setText (int resId)

Update the text in a Toast that was previously created using one of the makeText() methods.

Parameters
`resId`	`int`: The new text for the Toast.

setText

public void setText (CharSequence s)

Update the text in a Toast that was previously created using one of the makeText() methods.

Parameters
`s`	`CharSequence`: The new text for the Toast.

setView

public void setView (View view)

Set the view to show.

Parameters
`view`	`View`

See also:

getView()

show

public void show ()

Show the view for the specified duration.

Most visited

Recently visited

Results for

Toast

Developer Guides

Summary

Nested classes

Constants

Public constructors

Public methods

Inherited methods

Constants

LENGTH_LONG

LENGTH_SHORT

Public constructors

Toast

Public methods

addCallback

cancel

getDuration

getGravity

getHorizontalMargin

getVerticalMargin

getView

getXOffset

getYOffset

makeText

makeText

removeCallback

setDuration

setGravity

setMargin

setText

setText

setView

show