UiAutomation
public
final
class
UiAutomation
extends Object
java.lang.Object | |
↳ | android.app.UiAutomation |
Class for interacting with the device's UI by simulation user actions and
introspection of the screen content. It relies on the platform accessibility
APIs to introspect the screen and to perform some actions on the remote view
tree. It also allows injecting of arbitrary raw input events simulating user
interaction with keyboards and touch devices. One can think of a UiAutomation
as a special type of AccessibilityService
which does not provide hooks for the service life cycle and exposes other
APIs that are useful for UI test automation.
The APIs exposed by this class are low-level to maximize flexibility when
developing UI test automation tools and libraries. Generally, a UiAutomation
client should be using a higher-level library or implement high-level functions.
For example, performing a tap on the screen requires construction and injecting
of a touch down and up events which have to be delivered to the system by a
call to injectInputEvent(android.view.InputEvent, boolean)
.
The APIs exposed by this class operate across applications enabling a client to write tests that cover use cases spanning over multiple applications. For example, going to the settings application to change a setting and then interacting with another application whose behavior depends on that setting.
Summary
Nested classes | |
---|---|
interface |
UiAutomation.AccessibilityEventFilter
Listener for filtering accessibility events. |
interface |
UiAutomation.OnAccessibilityEventListener
Listener for observing the |
Constants | |
---|---|
int |
FLAG_DONT_SUPPRESS_ACCESSIBILITY_SERVICES
UiAutomation suppresses accessibility services by default. |
int |
FLAG_DONT_USE_ACCESSIBILITY
UiAutomation uses the accessibility subsystem by default. |
int |
ROTATION_FREEZE_0
Rotation constant: Freeze rotation to 0 degrees (natural orientation) |
int |
ROTATION_FREEZE_180
Rotation constant: Freeze rotation to 180 degrees . |
int |
ROTATION_FREEZE_270
Rotation constant: Freeze rotation to 270 degrees . |
int |
ROTATION_FREEZE_90
Rotation constant: Freeze rotation to 90 degrees . |
int |
ROTATION_FREEZE_CURRENT
Rotation constant: Freeze rotation to its current state. |
int |
ROTATION_UNFREEZE
Rotation constant: Unfreeze rotation (rotating the device changes its rotation state). |
Public methods | |
---|---|
void
|
adoptShellPermissionIdentity(String... permissions)
Adopt the permission identity of the shell UID only for the provided permissions. |
void
|
adoptShellPermissionIdentity()
Adopt the permission identity of the shell UID for all permissions. |
boolean
|
clearCache()
Clears the accessibility cache. |
void
|
clearWindowAnimationFrameStats()
This method was deprecated in API level 33. animation-frames are no-longer used. Use Shared FrameTimeline jank metrics instead. |
boolean
|
clearWindowContentFrameStats(int windowId)
Clears the frame statistics for the content of a given window. |
void
|
dropShellPermissionIdentity()
Drop the shell permission identity adopted by a previous call to
|
AccessibilityEvent
|
executeAndWaitForEvent(Runnable command, UiAutomation.AccessibilityEventFilter filter, long timeoutMillis)
Executes a command and waits for a specific accessibility event up to a given wait timeout. |
ParcelFileDescriptor
|
executeShellCommand(String command)
Executes a shell command. |
ParcelFileDescriptor[]
|
executeShellCommandRw(String command)
Executes a shell command. |
ParcelFileDescriptor[]
|
executeShellCommandRwe(String command)
Executes a shell command. |
AccessibilityNodeInfo
|
findFocus(int focus)
Find the view that has the specified focus type. |
AccessibilityNodeInfo
|
getRootInActiveWindow()
Gets the root |
AccessibilityServiceInfo
|
getServiceInfo()
Gets the an |
WindowAnimationFrameStats
|
getWindowAnimationFrameStats()
This method was deprecated in API level 33. animation-frames are no-longer used. |
WindowContentFrameStats
|
getWindowContentFrameStats(int windowId)
Gets the frame statistics for a given window. |
List<AccessibilityWindowInfo>
|
getWindows()
Gets the windows on the screen associated with the |
SparseArray<List<AccessibilityWindowInfo>>
|
getWindowsOnAllDisplays()
Gets the windows on the screen of all displays. |
void
|
grantRuntimePermission(String packageName, String permission)
Grants a runtime permission to a package. |
void
|
grantRuntimePermissionAsUser(String packageName, String permission, UserHandle userHandle)
Grants a runtime permission to a package for a user. |
boolean
|
injectInputEvent(InputEvent event, boolean sync)
A method for injecting an arbitrary input event. |
boolean
|
performGlobalAction(int action)
Performs a global action. |
void
|
revokeRuntimePermission(String packageName, String permission)
Revokes a runtime permission from a package. |
void
|
revokeRuntimePermissionAsUser(String packageName, String permission, UserHandle userHandle)
Revokes a runtime permission from a package. |
void
|
setAnimationScale(float scale)
Sets the system settings values that control the scaling factor for animations. |
void
|
setOnAccessibilityEventListener(UiAutomation.OnAccessibilityEventListener listener)
Sets a callback for observing the stream of |
boolean
|
setRotation(int rotation)
Sets the device rotation. |
void
|
setRunAsMonkey(boolean enable)
Sets whether this UiAutomation to run in a "monkey" mode. |
void
|
setServiceInfo(AccessibilityServiceInfo info)
Sets the |
Bitmap
|
takeScreenshot()
Takes a screenshot. |
Bitmap
|
takeScreenshot(Window window)
Used to capture a screenshot of a Window. |
String
|
toString()
Returns a string representation of the object. |
void
|
waitForIdle(long idleTimeoutMillis, long globalTimeoutMillis)
Waits for the accessibility event stream to become idle, which is not to
have received an accessibility event within |
Inherited methods | |
---|---|
Constants
FLAG_DONT_SUPPRESS_ACCESSIBILITY_SERVICES
public static final int FLAG_DONT_SUPPRESS_ACCESSIBILITY_SERVICES
UiAutomation suppresses accessibility services by default. This flag specifies that
existing accessibility services should continue to run, and that new ones may start.
This flag is set when obtaining the UiAutomation from
Instrumentation#getUiAutomation(int)
.
Constant Value: 1 (0x00000001)
FLAG_DONT_USE_ACCESSIBILITY
public static final int FLAG_DONT_USE_ACCESSIBILITY
UiAutomation uses the accessibility subsystem by default. This flag provides an option to
eliminate the overhead of engaging the accessibility subsystem for tests that do not need to
interact with the user interface. Setting this flag disables methods that rely on
accessibility. This flag is set when obtaining the UiAutomation from
Instrumentation#getUiAutomation(int)
.
Constant Value: 2 (0x00000002)
ROTATION_FREEZE_0
public static final int ROTATION_FREEZE_0
Rotation constant: Freeze rotation to 0 degrees (natural orientation)
Constant Value: 0 (0x00000000)
ROTATION_FREEZE_180
public static final int ROTATION_FREEZE_180
Rotation constant: Freeze rotation to 180 degrees .
Constant Value: 2 (0x00000002)
ROTATION_FREEZE_270
public static final int ROTATION_FREEZE_270
Rotation constant: Freeze rotation to 270 degrees .
Constant Value: 3 (0x00000003)
ROTATION_FREEZE_90
public static final int ROTATION_FREEZE_90
Rotation constant: Freeze rotation to 90 degrees .
Constant Value: 1 (0x00000001)
ROTATION_FREEZE_CURRENT
public static final int ROTATION_FREEZE_CURRENT
Rotation constant: Freeze rotation to its current state.
Constant Value: -1 (0xffffffff)
ROTATION_UNFREEZE
public static final int ROTATION_UNFREEZE
Rotation constant: Unfreeze rotation (rotating the device changes its rotation state).
Constant Value: -2 (0xfffffffe)
Public methods
adoptShellPermissionIdentity
public void adoptShellPermissionIdentity (String... permissions)
Adopt the permission identity of the shell UID only for the provided permissions.
This allows you to call APIs protected permissions which normal apps cannot hold
but are granted to the shell UID. If you already adopted shell permissions by calling
this method, or adoptShellPermissionIdentity()
a subsequent call will replace any
previous adoption.
Note: This method behave differently from
adoptShellPermissionIdentity()
. Only the listed permissions will use the shell
identity and other permissions will still check against the original UID
Parameters | |
---|---|
permissions |
String : The permissions to adopt or null to adopt all. |
adoptShellPermissionIdentity
public void adoptShellPermissionIdentity ()
Adopt the permission identity of the shell UID for all permissions. This allows
you to call APIs protected permissions which normal apps cannot hold but are
granted to the shell UID. If you already adopted all shell permissions by calling
this method or adoptShellPermissionIdentity(java.lang.String)
a subsequent call will
replace any previous adoption. Note that your permission state becomes that of the shell UID
and it is not a combination of your and the shell UID permissions.
Note: Calling this method adopts all shell permissions and overrides
any subset of adopted permissions via adoptShellPermissionIdentity(java.lang.String)
.
clearCache
public boolean clearCache ()
Clears the accessibility cache.
Returns | |
---|---|
boolean |
true if the cache was cleared |
See also:
clearWindowAnimationFrameStats
public void clearWindowAnimationFrameStats ()
This method was deprecated
in API level 33.
animation-frames are no-longer used. Use Shared
FrameTimeline
jank metrics instead.
Clears the window animation rendering statistics. These statistics contain information about the most recently rendered window animation frames, i.e. for window transition animations.
clearWindowContentFrameStats
public boolean clearWindowContentFrameStats (int windowId)
Clears the frame statistics for the content of a given window. These statistics contain information about the most recently rendered content frames.
Parameters | |
---|---|
windowId |
int : The window id. |
Returns | |
---|---|
boolean |
Whether the window is present and its frame statistics were cleared. |
Throws | |
---|---|
IllegalStateException |
If the connection to the accessibility subsystem is not established. |
dropShellPermissionIdentity
public void dropShellPermissionIdentity ()
Drop the shell permission identity adopted by a previous call to
adoptShellPermissionIdentity()
. If you did not adopt the shell permission
identity this method would be a no-op.
See also:
executeAndWaitForEvent
public AccessibilityEvent executeAndWaitForEvent (Runnable command, UiAutomation.AccessibilityEventFilter filter, long timeoutMillis)
Executes a command and waits for a specific accessibility event up to a given wait timeout. To detect a sequence of events one can implement a filter that keeps track of seen events of the expected sequence and returns true after the last event of that sequence is received.
Note: It is caller's responsibility to recycle the returned event.
Parameters | |
---|---|
command |
Runnable : The command to execute. |
filter |
UiAutomation.AccessibilityEventFilter : Filter that recognizes the expected event. |
timeoutMillis |
long : The wait timeout in milliseconds. |
Returns | |
---|---|
AccessibilityEvent |
Throws | |
---|---|
TimeoutException |
If the expected event is not received within the timeout. |
IllegalStateException |
If the connection to the accessibility subsystem is not established. |
executeShellCommand
public ParcelFileDescriptor executeShellCommand (String command)
Executes a shell command. This method returns a file descriptor that points
to the standard output stream. The command execution is similar to running
"adb shell
Note: It is your responsibility to close the returned file
descriptor once you are done reading.
Parameters | |
---|---|
command |
String : The command to execute. |
Returns | |
---|---|
ParcelFileDescriptor |
A file descriptor to the standard output stream. |
See also:
executeShellCommandRw
public ParcelFileDescriptor[] executeShellCommandRw (String command)
Executes a shell command. This method returns two file descriptors,
one that points to the standard output stream (element at index 0), and one that points
to the standard input stream (element at index 1). The command execution is similar
to running "adb shell
Note: It is your responsibility to close the returned file
descriptors once you are done reading/writing.
Parameters | |
---|---|
command |
String : The command to execute.
This value cannot be null . |
Returns | |
---|---|
ParcelFileDescriptor[] |
File descriptors (out, in) to the standard output/input streams.
This value cannot be null . |
executeShellCommandRwe
public ParcelFileDescriptor[] executeShellCommandRwe (String command)
Executes a shell command. This method returns three file descriptors,
one that points to the standard output stream (element at index 0), one that points
to the standard input stream (element at index 1), and one points to
standard error stream (element at index 2). The command execution is similar
to running "adb shell
Note: It is your responsibility to close the returned file
descriptors once you are done reading/writing.
Parameters | |
---|---|
command |
String : The command to execute.
This value cannot be null . |
Returns | |
---|---|
ParcelFileDescriptor[] |
File descriptors (out, in, err) to the standard output/input/error streams.
This value cannot be null . |
findFocus
public AccessibilityNodeInfo findFocus (int focus)
Find the view that has the specified focus type. The search is performed across all windows.
Note: In order to access the windows you have to opt-in
to retrieve the interactive windows by setting the
AccessibilityServiceInfo#FLAG_RETRIEVE_INTERACTIVE_WINDOWS
flag.
Otherwise, the search will be performed only in the active window.
Parameters | |
---|---|
focus |
int : The focus to find. One of AccessibilityNodeInfo#FOCUS_INPUT or
AccessibilityNodeInfo#FOCUS_ACCESSIBILITY . |
Returns | |
---|---|
AccessibilityNodeInfo |
The node info of the focused view or null. |
Throws | |
---|---|
IllegalStateException |
If the connection to the accessibility subsystem is not established. |
getRootInActiveWindow
public AccessibilityNodeInfo getRootInActiveWindow ()
Gets the root AccessibilityNodeInfo
in the active window.
Returns | |
---|---|
AccessibilityNodeInfo |
The root info. |
Throws | |
---|---|
IllegalStateException |
If the connection to the accessibility subsystem is not established. |
getServiceInfo
public AccessibilityServiceInfo getServiceInfo ()
Gets the an AccessibilityServiceInfo
describing this UiAutomation.
This method is useful if one wants to change some of the dynamically
configurable properties at runtime.
Returns | |
---|---|
AccessibilityServiceInfo |
The accessibility service info. |
Throws | |
---|---|
IllegalStateException |
If the connection to the accessibility subsystem is not established. |
See also:
getWindowAnimationFrameStats
public WindowAnimationFrameStats getWindowAnimationFrameStats ()
This method was deprecated
in API level 33.
animation-frames are no-longer used.
Gets the window animation frame statistics. These statistics contain information about the most recently rendered window animation frames, i.e. for window transition animations.
A typical usage requires clearing the window animation frame statistics via
clearWindowAnimationFrameStats()
followed by an interaction that causes
a window transition which uses a window animation and finally getting the window
animation frame statistics by calling this method.
// Start with a clean slate. uiAutimation.clearWindowAnimationFrameStats(); // Do stuff to trigger a window transition. // Get the frame statistics. WindowAnimationFrameStats stats = uiAutomation.getWindowAnimationFrameStats();
Returns | |
---|---|
WindowAnimationFrameStats |
The window animation frame statistics. |
getWindowContentFrameStats
public WindowContentFrameStats getWindowContentFrameStats (int windowId)
Gets the frame statistics for a given window. These statistics contain information about the most recently rendered content frames.
A typical usage requires clearing the window frame statistics via clearWindowContentFrameStats(int)
followed by an interaction with the UI and
finally getting the window frame statistics via calling this method.
// Assume we have at least one window. final int windowId = getWindows().get(0).getId(); // Start with a clean slate. uiAutimation.clearWindowContentFrameStats(windowId); // Do stuff with the UI. // Get the frame statistics. WindowContentFrameStats stats = uiAutomation.getWindowContentFrameStats(windowId);
Parameters | |
---|---|
windowId |
int : The window id. |
Returns | |
---|---|
WindowContentFrameStats |
The window frame statistics, or null if the window is not present. |
Throws | |
---|---|
IllegalStateException |
If the connection to the accessibility subsystem is not established. |
getWindows
public List<AccessibilityWindowInfo> getWindows ()
Gets the windows on the screen associated with the UiAutomation
context (usually the
{@link android.view.Display#DEFAULT_DISPLAY default display).
This method returns only the windows that a sighted user can interact with, as opposed to all windows.
For example, if there is a modal dialog shown and the user cannot touch anything behind it, then only the modal window will be reported (assuming it is the top one). For convenience the returned windows are ordered in a descending layer order, which is the windows that are higher in the Z-order are reported first.
Note: In order to access the windows you have to opt-in to retrieve the interactive windows by setting the {@link AccessibilityServiceInfo#FLAG_RETRIEVE_INTERACTIVE_WINDOWS} flag.
Returns | |
---|---|
List<AccessibilityWindowInfo> |
The windows if there are windows such, otherwise an empty list. |
Throws | |
---|---|
IllegalStateException |
If the connection to the accessibility subsystem is not established. |
getWindowsOnAllDisplays
public SparseArray<List<AccessibilityWindowInfo>> getWindowsOnAllDisplays ()
Gets the windows on the screen of all displays. This method returns only the windows that a sighted user can interact with, as opposed to all windows. For example, if there is a modal dialog shown and the user cannot touch anything behind it, then only the modal window will be reported (assuming it is the top one). For convenience the returned windows are ordered in a descending layer order, which is the windows that are higher in the Z-order are reported first.
Note: In order to access the windows you have to opt-in
to retrieve the interactive windows by setting the
AccessibilityServiceInfo#FLAG_RETRIEVE_INTERACTIVE_WINDOWS
flag.
Returns | |
---|---|
SparseArray<List<AccessibilityWindowInfo>> |
The windows of all displays if there are windows and the service is can retrieve
them, otherwise an empty list. The key of SparseArray is display ID.
This value cannot be null . |
Throws | |
---|---|
IllegalStateException |
If the connection to the accessibility subsystem is not established. |
grantRuntimePermission
public void grantRuntimePermission (String packageName, String permission)
Grants a runtime permission to a package.
Parameters | |
---|---|
packageName |
String : The package to which to grant. |
permission |
String : The permission to grant. |
Throws | |
---|---|
SecurityException |
if unable to grant the permission. |
grantRuntimePermissionAsUser
public void grantRuntimePermissionAsUser (String packageName, String permission, UserHandle userHandle)
Grants a runtime permission to a package for a user.
Parameters | |
---|---|
packageName |
String : The package to which to grant. |
permission |
String : The permission to grant. |
userHandle |
UserHandle |
Throws | |
---|---|
SecurityException |
if unable to grant the permission. |
injectInputEvent
public boolean injectInputEvent (InputEvent event, boolean sync)
A method for injecting an arbitrary input event. This method waits for all window container animations and surface operations to complete.
Note: It is caller's responsibility to recycle the event.
Parameters | |
---|---|
event |
InputEvent : The event to inject. |
sync |
boolean : Whether to inject the event synchronously. |
Returns | |
---|---|
boolean |
Whether event injection succeeded. |
performGlobalAction
public boolean performGlobalAction (int action)
Performs a global action. Such an action can be performed at any moment regardless of the current application or user location in that application. For example going back, going home, opening recents, etc.
Parameters | |
---|---|
action |
int : The action to perform. |
Returns | |
---|---|
boolean |
Whether the action was successfully performed. |
Throws | |
---|---|
IllegalStateException |
If the connection to the accessibility subsystem is not established. |
revokeRuntimePermission
public void revokeRuntimePermission (String packageName, String permission)
Revokes a runtime permission from a package.
Parameters | |
---|---|
packageName |
String : The package to which to grant. |
permission |
String : The permission to grant. |
Throws | |
---|---|
SecurityException |
if unable to revoke the permission. |
revokeRuntimePermissionAsUser
public void revokeRuntimePermissionAsUser (String packageName, String permission, UserHandle userHandle)
Revokes a runtime permission from a package.
Parameters | |
---|---|
packageName |
String : The package to which to grant. |
permission |
String : The permission to grant. |
userHandle |
UserHandle |
Throws | |
---|---|
SecurityException |
if unable to revoke the permission. |
setAnimationScale
public void setAnimationScale (float scale)
Sets the system settings values that control the scaling factor for animations. The scale
controls the animation playback speed for animations that respect these settings. Animations
that do not respect the settings values will not be affected by this function. A lower scale
value results in a faster speed. A value of 0
disables animations entirely. When
animations are disabled services receive window change events more quickly which can reduce
the potential by confusion by reducing the time during which windows are in transition.
Parameters | |
---|---|
scale |
float : The scaling factor for all animations. |
setOnAccessibilityEventListener
public void setOnAccessibilityEventListener (UiAutomation.OnAccessibilityEventListener listener)
Sets a callback for observing the stream of AccessibilityEvent
s.
The callbacks are delivered on the main application thread.
Parameters | |
---|---|
listener |
UiAutomation.OnAccessibilityEventListener : The callback. |
Throws | |
---|---|
IllegalStateException |
If the connection to the accessibility subsystem is not established. |
setRotation
public boolean setRotation (int rotation)
Sets the device rotation. A client can freeze the rotation in desired state or freeze the rotation to its current state or unfreeze the rotation (rotating the device changes its rotation state).
Parameters | |
---|---|
rotation |
int : The desired rotation. |
Returns | |
---|---|
boolean |
Whether the rotation was set successfully. |
setRunAsMonkey
public void setRunAsMonkey (boolean enable)
Sets whether this UiAutomation to run in a "monkey" mode. Applications can query whether they are executed in a "monkey" mode, i.e. run by a test framework, and avoid doing potentially undesirable actions such as calling 911 or posting on public forums etc.
Parameters | |
---|---|
enable |
boolean : whether to run in a "monkey" mode or not. Default is not. |
See also:
setServiceInfo
public void setServiceInfo (AccessibilityServiceInfo info)
Sets the AccessibilityServiceInfo
that describes how this
UiAutomation will be handled by the platform accessibility layer.
Parameters | |
---|---|
info |
AccessibilityServiceInfo : The info. |
Throws | |
---|---|
IllegalStateException |
If the connection to the accessibility subsystem is not established. |
See also:
takeScreenshot
public Bitmap takeScreenshot ()
Takes a screenshot.
Returns | |
---|---|
Bitmap |
The screenshot bitmap on success, null otherwise. |
takeScreenshot
public Bitmap takeScreenshot (Window window)
Used to capture a screenshot of a Window. This can return null in the following cases: 1. Window content hasn't been layed out. 2. Window doesn't have a valid SurfaceControl 3. An error occurred in SurfaceFlinger when trying to take the screenshot.
Parameters | |
---|---|
window |
Window : Window to take a screenshot of
This value cannot be null . |
Returns | |
---|---|
Bitmap |
The screenshot bitmap on success, null otherwise. |
toString
public String toString ()
Returns a string representation of the object.
Returns | |
---|---|
String |
a string representation of the object. |
waitForIdle
public void waitForIdle (long idleTimeoutMillis, long globalTimeoutMillis)
Waits for the accessibility event stream to become idle, which is not to
have received an accessibility event within idleTimeoutMillis
.
The total time spent to wait for an idle accessibility event stream is bounded
by the globalTimeoutMillis
.
Parameters | |
---|---|
idleTimeoutMillis |
long : The timeout in milliseconds between two events
to consider the device idle. |
globalTimeoutMillis |
long : The maximal global timeout in milliseconds in
which to wait for an idle state. |
Throws | |
---|---|
TimeoutException |
If no idle state was detected within
globalTimeoutMillis. |
IllegalStateException |
If the connection to the accessibility subsystem is not established. |
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Last updated 2024-04-11 UTC.