ActivityManager.TaskDescription

public static class ActivityManager.TaskDescription
extends Object implements Parcelable

java.lang.Object
   ↳ android.app.ActivityManager.TaskDescription

Information you can set and retrieve about the current activity within the recent task list.

Summary

Nested classes

class ActivityManager.TaskDescription.Builder

Provides a convenient way to set the fields of a TaskDescription when creating a new instance. 

Inherited constants

Fields

public static final Creator<ActivityManager.TaskDescription> CREATOR

Public constructors

TaskDescription(String label, int iconRes, int colorPrimary)

This constructor is deprecated. Use Builder instead.

TaskDescription(String label, int iconRes)

This constructor is deprecated. Use Builder instead.

TaskDescription(String label)

This constructor is deprecated. Use Builder instead.

TaskDescription()

This constructor is deprecated. Use Builder instead.

TaskDescription(String label, Bitmap icon, int colorPrimary)

This constructor is deprecated. Use Builder instead.

TaskDescription(String label, Bitmap icon)

This constructor is deprecated. Use Builder instead.

TaskDescription(ActivityManager.TaskDescription td)

Creates a copy of another TaskDescription.

Public methods

int describeContents()

Describe the kinds of special objects contained in this Parcelable instance's marshaled representation.

boolean equals(Object obj)

Indicates whether some other object is "equal to" this one.

int getBackgroundColor()
Bitmap getIcon()

This method was deprecated in API level 30. This call is no longer supported. The caller should keep track of any icons it sets for the task descriptions internally.

String getLabel()
int getNavigationBarColor()
int getPrimaryColor()
int getStatusBarColor()
int hashCode()

Returns a hash code value for the object.

void readFromParcel(Parcel source)
String toString()

Returns a string representation of the object.

void writeToParcel(Parcel dest, int flags)

Flatten this object in to a Parcel.

Inherited methods

Fields

CREATOR

Added in API level 21 
public static final Creator<ActivityManager.TaskDescription> CREATOR

Public constructors

TaskDescription

Added in API level 28 
public TaskDescription (String label, 
                int iconRes, 
                int colorPrimary)

This constructor is deprecated.
Use Builder instead.

Creates the TaskDescription to the specified values.

Parameters
label String: A label and description of the current state of this task.
iconRes int: A drawable resource of an icon that represents the current state of this activity.
colorPrimary int: A color to override the theme's primary color. This color must be opaque.

TaskDescription

Added in API level 28 
public TaskDescription (String label, 
                int iconRes)

This constructor is deprecated.
Use Builder instead.

Creates the TaskDescription to the specified values.

Parameters
label String: A label and description of the current state of this activity.
iconRes int: A drawable resource of an icon that represents the current state of this activity.

TaskDescription

Added in API level 21 
public TaskDescription (String label)

This constructor is deprecated.
Use Builder instead.

Creates the TaskDescription to the specified values.

Parameters
label String: A label and description of the current state of this activity.

TaskDescription

Added in API level 21 
public TaskDescription ()

This constructor is deprecated.
Use Builder instead.

Creates an empty TaskDescription.

TaskDescription

Added in API level 21 
public TaskDescription (String label, 
                Bitmap icon, 
                int colorPrimary)

This constructor is deprecated.
Use Builder instead.

Creates the TaskDescription to the specified values.

Parameters
label String: A label and description of the current state of this task.
icon Bitmap: An icon that represents the current state of this task.
colorPrimary int: A color to override the theme's primary color. This color must be opaque.

TaskDescription

Added in API level 21 
public TaskDescription (String label, 
                Bitmap icon)

This constructor is deprecated.
Use Builder instead.

Creates the TaskDescription to the specified values.

Parameters
label String: A label and description of the current state of this activity.
icon Bitmap: An icon that represents the current state of this activity.

TaskDescription

Added in API level 21 
public TaskDescription (ActivityManager.TaskDescription td)

Creates a copy of another TaskDescription.

Parameters
td ActivityManager.TaskDescription

Public methods

describeContents

Added in API level 21 
public int describeContents ()

Describe the kinds of special objects contained in this Parcelable instance's marshaled representation. For example, if the object will include a file descriptor in the output of writeToParcel(android.os.Parcel, int), the return value of this method must include the CONTENTS_FILE_DESCRIPTOR bit.

Returns
int a bitmask indicating the set of special object types marshaled by this Parcelable object instance. Value is either 0 or CONTENTS_FILE_DESCRIPTOR

equals

Added in API level 21 
public boolean equals (Object obj)

Indicates whether some other object is "equal to" this one.

The equals method implements an equivalence relation on non-null object references:

  • It is reflexive: for any non-null reference value x, x.equals(x) should return true.
  • It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
  • It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
  • It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified.
  • For any non-null reference value x, x.equals(null) should return false.

An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes.

Parameters
obj Object: This value may be null.
Returns
boolean true if this object is the same as the obj argument; false otherwise.

getBackgroundColor

Added in API level 33 
public int getBackgroundColor ()

Returns
int The color override on the theme's background color.

getIcon

Added in API level 21
Deprecated in API level 30 
public Bitmap getIcon ()

This method was deprecated in API level 30.
This call is no longer supported. The caller should keep track of any icons it sets for the task descriptions internally.

Returns
Bitmap The in-memory or loaded icon that represents the current state of this task.

getLabel

Added in API level 21 
public String getLabel ()

Returns
String The label and description of the current state of this task.

getNavigationBarColor

Added in API level 33 
public int getNavigationBarColor ()

Returns
int The color override on the theme's navigation bar color.

getPrimaryColor

Added in API level 21 
public int getPrimaryColor ()

Returns
int The color override on the theme's primary color.

getStatusBarColor

Added in API level 33 
public int getStatusBarColor ()

Returns
int The color override on the theme's status bar color.

hashCode

Added in API level 21 
public int hashCode ()

Returns a hash code value for the object. This method is supported for the benefit of hash tables such as those provided by HashMap.

The general contract of hashCode is:

  • Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
  • If two objects are equal according to the equals method, then calling the hashCode method on each of the two objects must produce the same integer result.
  • It is not required that if two objects are unequal according to the equals method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.

Returns
int a hash code value for this object.

readFromParcel

Added in API level 21 
public void readFromParcel (Parcel source)

Parameters
source Parcel

toString

Added in API level 21 
public String toString ()

Returns a string representation of the object.

Returns
String a string representation of the object.

writeToParcel

Added in API level 21 
public void writeToParcel (Parcel dest, 
                int flags)

Flatten this object in to a Parcel.

Parameters
dest Parcel: The Parcel in which the object should be written. This value cannot be null.
flags int: Additional flags about how the object should be written. May be 0 or Parcelable.PARCELABLE_WRITE_RETURN_VALUE. Value is either 0 or a combination of Parcelable.PARCELABLE_WRITE_RETURN_VALUE, and android.os.Parcelable.PARCELABLE_ELIDE_DUPLICATES