public class

ActivityInfo

extends ComponentInfo
implements Parcelable
java.lang.Object
   ↳ android.content.pm.PackageItemInfo
     ↳ android.content.pm.ComponentInfo
       ↳ android.content.pm.ActivityInfo

Class Overview

Information you can retrieve about a particular application activity or receiver. This corresponds to information collected from the AndroidManifest.xml's <activity> and <receiver> tags.

Summary

Constants
int CONFIG_FONT_SCALE Bit in configChanges that indicates that the activity can itself handle changes to the font scaling factor.
int CONFIG_KEYBOARD Bit in configChanges that indicates that the activity can itself handle changes to the keyboard type.
int CONFIG_KEYBOARD_HIDDEN Bit in configChanges that indicates that the activity can itself handle changes to the keyboard being hidden/exposed.
int CONFIG_LOCALE Bit in configChanges that indicates that the activity can itself handle changes to the locale.
int CONFIG_MCC Bit in configChanges that indicates that the activity can itself handle changes to the IMSI MCC.
int CONFIG_MNC Bit in configChanges that indicates that the activity can itself handle changes to the IMSI MNC.
int CONFIG_NAVIGATION Bit in configChanges that indicates that the activity can itself handle changes to the navigation type.
int CONFIG_ORIENTATION Bit in configChanges that indicates that the activity can itself handle changes to the screen orientation.
int CONFIG_TOUCHSCREEN Bit in configChanges that indicates that the activity can itself handle changes to the touchscreen type.
Creator<ActivityInfo> CREATOR
int FLAG_ALLOW_TASK_REPARENTING Bit in flags that indicates that the activity can be moved between tasks based on its task affinity.
int FLAG_ALWAYS_RETAIN_TASK_STATE Bit in flags indicating that, when the activity is the root of a task, that task's stack should never be cleared when it is relaunched from home.
int FLAG_CLEAR_TASK_ON_LAUNCH Bit in flags indicating that, when the activity is the root of a task, that task's stack should be cleared each time the user re-launches it from home.
int FLAG_EXCLUDE_FROM_RECENTS Bit in flags that indicates that the activity should not appear in the list of recently launched activities.
int FLAG_FINISH_ON_TASK_LAUNCH Bit in flags indicating that, when the activity's task is relaunched from home, this activity should be finished.
int FLAG_MULTIPROCESS Bit in flags indicating whether this activity is able to run in multiple processes.
int FLAG_NO_HISTORY Bit in flags indicating that, when the user navigates away from an activity, it should be finished.
int FLAG_STATE_NOT_NEEDED Bit in flags indicating that the activity's state is not required to be saved, so that if there is a failure the activity will not be removed from the activity stack.
int LAUNCH_MULTIPLE Constant corresponding to standard in the launchMode attribute.
int LAUNCH_SINGLE_INSTANCE Constant corresponding to singleInstance in the launchMode attribute.
int LAUNCH_SINGLE_TASK Constant corresponding to singleTask in the launchMode attribute.
int LAUNCH_SINGLE_TOP Constant corresponding to singleTop in the launchMode attribute.
int SCREEN_ORIENTATION_BEHIND Constant corresponding to behind in the screenOrientation attribute.
int SCREEN_ORIENTATION_LANDSCAPE Constant corresponding to landscape in the screenOrientation attribute.
int SCREEN_ORIENTATION_NOSENSOR Constant corresponding to sensor in the screenOrientation attribute.
int SCREEN_ORIENTATION_PORTRAIT Constant corresponding to portrait in the screenOrientation attribute.
int SCREEN_ORIENTATION_SENSOR Constant corresponding to sensor in the screenOrientation attribute.
int SCREEN_ORIENTATION_UNSPECIFIED Constant corresponding to unspecified in the screenOrientation attribute.
int SCREEN_ORIENTATION_USER Constant corresponding to user in the screenOrientation attribute.
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Inherited Constants
From interface android.os.Parcelable
Fields
public int configChanges Bit mask of kinds of configuration changes that this activity can handle itself (without being restarted by the system).
public int flags Options that have been set in the activity declaration in the manifest: FLAG_MULTIPROCESS, FLAG_FINISH_ON_TASK_LAUNCH, FLAG_CLEAR_TASK_ON_LAUNCH, FLAG_ALWAYS_RETAIN_TASK_STATE, FLAG_STATE_NOT_NEEDED, FLAG_EXCLUDE_FROM_RECENTS, FLAG_ALLOW_TASK_REPARENTING, FLAG_NO_HISTORY.
public int launchMode The launch mode style requested by the activity.
public String permission Optional name of a permission required to be able to access this Activity.
public int screenOrientation The preferred screen orientation this activity would like to run in.
public int softInputMode The desired soft input mode for this activity's main window.
public String targetActivity If this is an activity alias, this is the real activity class to run for it.
public String taskAffinity The affinity this activity has for another task in the system.
public int theme A style resource identifier (in the package's resources) of this activity's theme.
[Expand]
Inherited Fields
From class android.content.pm.ComponentInfo
From class android.content.pm.PackageItemInfo
Public Constructors
ActivityInfo()
ActivityInfo(ActivityInfo orig)
Public Methods
int describeContents()
Describe the kinds of special objects contained in this Parcelable's marshalled representation.
void dump(Printer pw, String prefix)
final int getThemeResource()
Return the theme resource identifier to use for this activity.
String toString()
Returns a string containing a concise, human-readable description of this object.
void writeToParcel(Parcel dest, int parcelableFlags)
[Expand]
Inherited Methods
From class android.content.pm.ComponentInfo
From class android.content.pm.PackageItemInfo
From class java.lang.Object
From interface android.os.Parcelable

Constants

public static final int CONFIG_FONT_SCALE

Bit in configChanges that indicates that the activity can itself handle changes to the font scaling factor. Set from the configChanges attribute. This is not a core resource configutation, but a higher-level value, so its constant starts at the high bits.

Constant Value: 1073741824 (0x40000000)

public static final int CONFIG_KEYBOARD

Bit in configChanges that indicates that the activity can itself handle changes to the keyboard type. Set from the configChanges attribute.

Constant Value: 16 (0x00000010)

public static final int CONFIG_KEYBOARD_HIDDEN

Bit in configChanges that indicates that the activity can itself handle changes to the keyboard being hidden/exposed. Set from the configChanges attribute.

Constant Value: 32 (0x00000020)

public static final int CONFIG_LOCALE

Bit in configChanges that indicates that the activity can itself handle changes to the locale. Set from the configChanges attribute.

Constant Value: 4 (0x00000004)

public static final int CONFIG_MCC

Bit in configChanges that indicates that the activity can itself handle changes to the IMSI MCC. Set from the configChanges attribute.

Constant Value: 1 (0x00000001)

public static final int CONFIG_MNC

Bit in configChanges that indicates that the activity can itself handle changes to the IMSI MNC. Set from the configChanges attribute.

Constant Value: 2 (0x00000002)

public static final int CONFIG_NAVIGATION

Bit in configChanges that indicates that the activity can itself handle changes to the navigation type. Set from the configChanges attribute.

Constant Value: 64 (0x00000040)

public static final int CONFIG_ORIENTATION

Bit in configChanges that indicates that the activity can itself handle changes to the screen orientation. Set from the configChanges attribute.

Constant Value: 128 (0x00000080)

public static final int CONFIG_TOUCHSCREEN

Bit in configChanges that indicates that the activity can itself handle changes to the touchscreen type. Set from the configChanges attribute.

Constant Value: 8 (0x00000008)

public static final Creator<ActivityInfo> CREATOR

public static final int FLAG_ALLOW_TASK_REPARENTING

Bit in flags that indicates that the activity can be moved between tasks based on its task affinity. Set from the allowTaskReparenting attribute.

Constant Value: 64 (0x00000040)

public static final int FLAG_ALWAYS_RETAIN_TASK_STATE

Bit in flags indicating that, when the activity is the root of a task, that task's stack should never be cleared when it is relaunched from home. Set from the alwaysRetainTaskState attribute.

Constant Value: 8 (0x00000008)

public static final int FLAG_CLEAR_TASK_ON_LAUNCH

Bit in flags indicating that, when the activity is the root of a task, that task's stack should be cleared each time the user re-launches it from home. As a result, the user will always return to the original activity at the top of the task. This flag only applies to activities that are used to start the root of a new task. Set from the clearTaskOnLaunch attribute.

Constant Value: 4 (0x00000004)

public static final int FLAG_EXCLUDE_FROM_RECENTS

Bit in flags that indicates that the activity should not appear in the list of recently launched activities. Set from the excludeFromRecents attribute.

Constant Value: 32 (0x00000020)

public static final int FLAG_FINISH_ON_TASK_LAUNCH

Bit in flags indicating that, when the activity's task is relaunched from home, this activity should be finished. Set from the finishOnTaskLaunch attribute.

Constant Value: 2 (0x00000002)

public static final int FLAG_MULTIPROCESS

Bit in flags indicating whether this activity is able to run in multiple processes. If true, the system may instantiate it in the some process as the process starting it in order to conserve resources. If false, the default, it always runs in processName. Set from the multiprocess attribute.

Constant Value: 1 (0x00000001)

public static final int FLAG_NO_HISTORY

Bit in flags indicating that, when the user navigates away from an activity, it should be finished. Set from the noHistory attribute.

Constant Value: 128 (0x00000080)

public static final int FLAG_STATE_NOT_NEEDED

Bit in flags indicating that the activity's state is not required to be saved, so that if there is a failure the activity will not be removed from the activity stack. Set from the stateNotNeeded attribute.

Constant Value: 16 (0x00000010)

public static final int LAUNCH_MULTIPLE

Constant corresponding to standard in the launchMode attribute.

Constant Value: 0 (0x00000000)

public static final int LAUNCH_SINGLE_INSTANCE

Constant corresponding to singleInstance in the launchMode attribute.

Constant Value: 3 (0x00000003)

public static final int LAUNCH_SINGLE_TASK

Constant corresponding to singleTask in the launchMode attribute.

Constant Value: 2 (0x00000002)

public static final int LAUNCH_SINGLE_TOP

Constant corresponding to singleTop in the launchMode attribute.

Constant Value: 1 (0x00000001)

public static final int SCREEN_ORIENTATION_BEHIND

Constant corresponding to behind in the screenOrientation attribute.

Constant Value: 3 (0x00000003)

public static final int SCREEN_ORIENTATION_LANDSCAPE

Constant corresponding to landscape in the screenOrientation attribute.

Constant Value: 0 (0x00000000)

public static final int SCREEN_ORIENTATION_NOSENSOR

Constant corresponding to sensor in the screenOrientation attribute.

Constant Value: 5 (0x00000005)

public static final int SCREEN_ORIENTATION_PORTRAIT

Constant corresponding to portrait in the screenOrientation attribute.

Constant Value: 1 (0x00000001)

public static final int SCREEN_ORIENTATION_SENSOR

Constant corresponding to sensor in the screenOrientation attribute.

Constant Value: 4 (0x00000004)

public static final int SCREEN_ORIENTATION_UNSPECIFIED

Constant corresponding to unspecified in the screenOrientation attribute.

Constant Value: -1 (0xffffffff)

public static final int SCREEN_ORIENTATION_USER

Constant corresponding to user in the screenOrientation attribute.

Constant Value: 2 (0x00000002)

Fields

public int configChanges

Bit mask of kinds of configuration changes that this activity can handle itself (without being restarted by the system). Contains any combination of CONFIG_FONT_SCALE, CONFIG_MCC, CONFIG_MNC, CONFIG_LOCALE, CONFIG_TOUCHSCREEN, CONFIG_KEYBOARD, CONFIG_NAVIGATION, and CONFIG_ORIENTATION. Set from the configChanges attribute.

public int launchMode

The launch mode style requested by the activity. From the launchMode attribute, one of LAUNCH_MULTIPLE, LAUNCH_SINGLE_TOP, LAUNCH_SINGLE_TASK, or LAUNCH_SINGLE_INSTANCE.

public String permission

Optional name of a permission required to be able to access this Activity. From the "permission" attribute.

public int screenOrientation

public int softInputMode

The desired soft input mode for this activity's main window. Set from the windowSoftInputMode attribute in the activity's manifest. May be any of the same values allowed for WindowManager.LayoutParams.softInputMode. If 0 (unspecified), the mode from the theme will be used.

public String targetActivity

If this is an activity alias, this is the real activity class to run for it. Otherwise, this is null.

public String taskAffinity

The affinity this activity has for another task in the system. The string here is the name of the task, often the package name of the overall package. If null, the activity has no affinity. Set from the taskAffinity attribute.

public int theme

A style resource identifier (in the package's resources) of this activity's theme. From the "theme" attribute or, if not set, 0.

Public Constructors

public ActivityInfo ()

public ActivityInfo (ActivityInfo orig)

Public Methods

public int describeContents ()

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

Returns
  • a bitmask indicating the set of special object types marshalled by the Parcelable.

public void dump (Printer pw, String prefix)

public final int getThemeResource ()

Return the theme resource identifier to use for this activity. If the activity defines a theme, that is used; else, the application theme is used.

Returns
  • The theme associated with this activity.

public String toString ()

Returns a string containing a concise, human-readable description of this object. Subclasses are encouraged to override this method and provide an implementation that takes into account the object's type and data. The default implementation simply concatenates the class name, the '@' sign and a hexadecimal representation of the object's hashCode(), that is, it is equivalent to the following expression:

 getClass().getName() + '@' + Integer.toHexString(hashCode())
 

Returns
  • a printable representation of this object.

public void writeToParcel (Parcel dest, int parcelableFlags)