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Add API for services to turn off window animations.

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Bug: 195757359
Test: atest AccessibilityWindowReportingTest
Change-Id: I5fc1c90e87de17fb770f6a3371fc341985017a61
This commit is contained in:
Ameer Armaly
2021-12-08 11:07:34 -08:00
parent d3bffe3284
commit c52cb42e51
6 changed files with 82 additions and 1 deletions
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2
core/api/current.txt
View File

@@ -3074,6 +3074,7 @@ package android.accessibilityservice {
method public void onSystemActionsChanged();
method public final boolean performGlobalAction(int);
method public void setAccessibilityFocusAppearance(int, @ColorInt int);
method public void setAnimationScale(float);
method public boolean setCacheEnabled(boolean);
method public void setGestureDetectionPassthroughRegion(int, @NonNull android.graphics.Region);
method public final void setServiceInfo(android.accessibilityservice.AccessibilityServiceInfo);
@@ -6949,6 +6950,7 @@ package android.app {
method public boolean performGlobalAction(int);
method public void revokeRuntimePermission(String, String);
method public void revokeRuntimePermissionAsUser(String, String, android.os.UserHandle);
method public void setAnimationScale(float);
method public void setOnAccessibilityEventListener(android.app.UiAutomation.OnAccessibilityEventListener);
method public boolean setRotation(int);
method public void setRunAsMonkey(boolean);

27
core/java/android/accessibilityservice/AccessibilityService.java
View File

@@ -3120,6 +3120,33 @@ public abstract class AccessibilityService extends Service {
}
}
/**
* 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 <code>0</code> 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.
*
* @see AccessibilityEvent#TYPE_WINDOWS_CHANGED
* @see AccessibilityEvent#TYPE_WINDOW_STATE_CHANGED
* @see android.provider.Settings.Global#WINDOW_ANIMATION_SCALE
* @see android.provider.Settings.Global#TRANSITION_ANIMATION_SCALE
* @see android.provider.Settings.Global#ANIMATOR_DURATION_SCALE
* @param scale The scaling factor for all animations.
*/
public void setAnimationScale(float scale) {
final IAccessibilityServiceConnection connection =
AccessibilityInteractionClient.getInstance(this).getConnection(mConnectionId);
if (connection != null) {
try {
connection.setAnimationScale(scale);
} catch (RemoteException re) {
throw new RuntimeException(re);
}
}
}
private static class AccessibilityContext extends ContextWrapper {
private final int mConnectionId;

2
core/java/android/accessibilityservice/IAccessibilityServiceConnection.aidl
View File

@@ -144,4 +144,6 @@ interface IAccessibilityServiceConnection {
void onDoubleTap(int displayId);
void onDoubleTapAndHold(int displayId);
void setAnimationScale(float scale);
}

27
core/java/android/app/UiAutomation.java
View File

@@ -779,6 +779,33 @@ public final class UiAutomation {
return false;
}
/**
* 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 <code>0</code> 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.
*
* @see AccessibilityEvent#TYPE_WINDOWS_CHANGED
* @see AccessibilityEvent#TYPE_WINDOW_STATE_CHANGED
* @see android.provider.Settings.Global#WINDOW_ANIMATION_SCALE
* @see android.provider.Settings.Global#TRANSITION_ANIMATION_SCALE
* @see android.provider.Settings.Global#ANIMATOR_DURATION_SCALE
* @param scale The scaling factor for all animations.
*/
public void setAnimationScale(float scale) {
final IAccessibilityServiceConnection connection =
AccessibilityInteractionClient.getInstance().getConnection(mConnectionId);
if (connection != null) {
try {
connection.setAnimationScale(scale);
} catch (RemoteException re) {
throw new RuntimeException(re);
}
}
}
/**
* A request for WindowManagerService to wait until all animations have completed and input
* information has been sent from WindowManager to native InputManager.

2
core/tests/coretests/src/android/view/accessibility/AccessibilityServiceConnectionImpl.java
View File

@@ -204,4 +204,6 @@ public class AccessibilityServiceConnectionImpl extends IAccessibilityServiceCon
public void logTrace(long timestamp, String where, long loggingTypes, String callingParams,
int processId, long threadId, int callingUid, Bundle serializedCallingStackInBundle) {}
public void setAnimationScale(float scale) {}
}

23
services/accessibility/java/com/android/server/accessibility/AbstractAccessibilityServiceConnection.java
View File

@@ -66,6 +66,7 @@ import android.os.RemoteCallback;
import android.os.RemoteException;
import android.os.ServiceManager;
import android.os.SystemClock;
import android.provider.Settings;
import android.util.Slog;
import android.util.SparseArray;
import android.view.Display;
@@ -269,6 +270,7 @@ abstract class AbstractAccessibilityServiceConnection extends IAccessibilityServ
void onDoubleTap(int displayId);
void onDoubleTapAndHold(int displayId);
}
public AbstractAccessibilityServiceConnection(Context context, ComponentName componentName,
@@ -2164,4 +2166,23 @@ abstract class AbstractAccessibilityServiceConnection extends IAccessibilityServ
public void onDoubleTapAndHold(int displayId) {
mSystemSupport.onDoubleTapAndHold(displayId);
}
}
/**
* Sets the scaling factor for animations.
*/
public void setAnimationScale(float scale) {
final long identity = Binder.clearCallingIdentity();
try {
Settings.Global.putFloat(
mContext.getContentResolver(), Settings.Global.WINDOW_ANIMATION_SCALE, scale);
Settings.Global.putFloat(
mContext.getContentResolver(),
Settings.Global.TRANSITION_ANIMATION_SCALE,
scale);
Settings.Global.putFloat(
mContext.getContentResolver(), Settings.Global.ANIMATOR_DURATION_SCALE, scale);
} finally {
Binder.restoreCallingIdentity(identity);
}
}
}