| 96804bc8fb3d6b2de11e3b9779c976e7b0e96ee8 |
|
08-Jan-2014 |
Ashok Bhat <ashok.bhat@arm.com> |
AArch64: Use long for pointers in VelocityTracker class
For storing pointers, long is used in VelocityTracker class,
as native pointers can be 64-bit.
Change-Id: I8c454663a97745c7440bb6f99ef49d28e9026876
Signed-off-by: Ashok Bhat <ashok.bhat@arm.com>
/frameworks/base/core/java/android/view/VelocityTracker.java
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| abae2a1b891772d36d8f781adfcc8969e551691f |
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28-Nov-2012 |
Svetoslav Ganov <svetoslavganov@google.com> |
Simplification of the poolable management utils.
Before to implement a pool of objects, the pooled class had to implement an
interface which was leaking the pool management APIs. This requires
hiding APIs - inconvenient at best. Further, each client had to
implement the chaining of pooled instances which means adding a couple
of member variables which are manipulated by the implemented interface
methods. As a consequence the client is aware of how pooling is
implemented which is error prone and breaks encapsulation. Now the
pool objects are responsible for managing pooling state via reusable
wrapper objects and the clients are oblivious of how pooling is done.
Creating a thin cached wrapper for each pooled object has minimal
performance impact while making the code more maintainable. Actually
implementing of the old version of the APIs was taking as much code
as implementing the pooling yourself.
Also clients had to implement a poolable manager whose responsibility
was to create new instances and provide callbacks when an instance
is added to or removed from the pool. Now, the clinet class should
create a static member for the pool and expose obtain/aquire and
release/recycle methods in which it should create a new instance if
the pool did not return one and clear the state of the host when
it is returned to the pool. Updated the JavaDoc with a best practice.
The pooling was composed of several interfaces and classes scattered
over a few files, now all this is in a single small file.
Update all usages of the pooling APIs in the framework.
Also one had to write a poolable
manager which
Change-Id: Ib8dc286040eb3d7cb7d9668ba76fead05cb97647
/frameworks/base/core/java/android/view/VelocityTracker.java
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| 9eb7d86181729c3eb769d71123c4ce9ffc868f08 |
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01-Jun-2012 |
Jeff Brown <jeffbrown@google.com> |
Make velocity tracker strategy configurable.
This change is very useful for testing purposes because it makes it
easy to compare different implementations to see how they behave.
There is no change to the current default strategy.
Bug: 6413587
Change-Id: I4d8567aa4160571ba9fa397ce419882cd9366749
/frameworks/base/core/java/android/view/VelocityTracker.java
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| 85bd0d62830a098c1bdc720dfdcf4fe1b18b657c |
|
14-May-2012 |
Jeff Brown <jeffbrown@google.com> |
More VelocityTracker refactoring.
Bug: 6413587
Change-Id: Ida1152e7a34d5fe5caab5e6b5e1bc79f6c7a25e6
/frameworks/base/core/java/android/view/VelocityTracker.java
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| 8a90e6e3174083f274538567d851f98478fc83e9 |
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11-May-2012 |
Jeff Brown <jeffbrown@google.com> |
Minor refactoring before starting on velocity tracker changes.
Bug: 6413587
Change-Id: I5eba2bb57193bff78cb3740de5f87aca0b31d154
/frameworks/base/core/java/android/view/VelocityTracker.java
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| 185b8256f570dfe620789130bb3861bdeecfffdd |
|
17-Jan-2012 |
Gilles Debunne <debunne@google.com> |
Fixed doc typo and removed warning
Change-Id: I9c9e45837037a77df5852ff4ea3ad596952e4507
/frameworks/base/core/java/android/view/VelocityTracker.java
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| b59ab9f41faafb358afb4f951de96f34a656e0b4 |
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14-Sep-2011 |
Jeff Brown <jeffbrown@google.com> |
Velocity Tracker II: The Revenge of Velocity Tracker
Bug: 5265529
Rewrote the velocity tracker to fit a polynomial curve
to pointer movements using least squares linear regression.
The velocity is simply the first derivative of this polynomial.
Clients can also obtain an Estimator that describes the
complete terms of the estimating polynomial including
the coefficient of determination which provides a measure
of the quality of the fit (confidence).
Enhanced PointerLocation to display the movement curve predicted
by the estimator in addition to the velocity vector.
By default, the algorithm computes a 2nd degree (quadratic)
polynomial based on a 100ms recent history horizon.
Change-Id: Id377bef44117fce68fee2c41f90134ce3224d3a1
/frameworks/base/core/java/android/view/VelocityTracker.java
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| 8643aa0179e598e78d938c59035389054535a229 |
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20-Apr-2011 |
Svetoslav Ganov <svetoslavganov@google.com> |
Interrogation of the view hierarchy from an AccessibilityService.
1. Views are represented as AccessibilityNodeInfos to AccessibilityServices.
2. An accessibility service receives AccessibilityEvents and can ask
for its source and gets an AccessibilityNodeInfo which can be used
to get its parent and children infos and so on.
3. AccessibilityNodeInfo contains some attributes and actions that
can be performed on the source.
4. AccessibilityService can request the system to preform an action
on the source of an AccessibilityNodeInfo.
5. ViewAncestor provides an interaction connection to the
AccessibiltyManagerService and an accessibility service uses
its connection to the latter to interact with screen content.
6. AccessibilityService can interact ONLY with the focused window
and all calls are routed through the AccessibilityManagerService
which imposes security.
7. Hidden APIs on AccessibilityService can find AccessibilityNodeInfos
based on some criteria. These API go through the AccessibilityManagerServcie
for security check.
8. Some actions are hidden and are exposes only to eng builds for UI testing.
Change-Id: Ie34fa4219f350eb3f4f6f9f45b24f709bd98783c
/frameworks/base/core/java/android/view/VelocityTracker.java
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| 2ed2462aa29c564f5231f317c27b3188da875e52 |
|
15-Mar-2011 |
Jeff Brown <jeffbrown@google.com> |
Improve VelocityTracker numerical stability.
Replaced VelocityTracker with a faster and more accurate
native implementation. This avoids the duplicate maintenance
overhead of having two implementations.
The new algorithm requires that the sample duration be at least
10ms in order to contribute to the velocity calculation. This
ensures that the velocity is not severely overestimated when
samples arrive in bursts.
The new algorithm computes the exponentially weighted moving
average using weights based on the relative duration of successive
sample periods.
The new algorithm is also more careful about how it handles
individual pointers going down or up and their effects on the
collected movement traces. The intent is to preserve the last
known velocity of pointers as they go up while also ensuring
that other motion samples do not count twice in that case.
Bug: 4086785
Change-Id: I2632321232c64d6b8faacdb929e33f60e64dcdd3
/frameworks/base/core/java/android/view/VelocityTracker.java
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| c00972bb162779e52d1b0d8f662a9f6033bf9182 |
|
12-Oct-2010 |
Romain Guy <romainguy@google.com> |
Don't recreate a new texture every time we draw a layer.
Change-Id: I3c28aff5acffc7c6f1ac74805869725426c62d28
/frameworks/base/core/java/android/view/VelocityTracker.java
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| 8ae0f3f6c7319717237af74c8d4aad2c082eef2b |
|
09-Sep-2010 |
Adam Powell <adamp@google.com> |
Fix bug 2988160 - Flinging broken in certain apps/widgets
Change-Id: I89de767cecbbc37cb2fe90a0346e8e1591dec60b
/frameworks/base/core/java/android/view/VelocityTracker.java
|
| 88cf2fca38066e75f9349950c8e6255a91350d97 |
|
10-Aug-2010 |
Jeff Brown <jeffbrown@google.com> |
Optimize VelocityTracker to run in linear time.
Uses a linked list for efficient pointer addition and removal.
When possible, makes use of the fact that pointer ids are usually in
sorted order to avoid quadratic time lookups when adding new data.
Fixed an incorrect assumption that the pointer count would always change
when old pointers were removed.
Also fixed a bug in InputQueue FinishedCallback recycling.
Change-Id: Ie048d3bb022d39cf4185e2fe43923a861d94c4f3
/frameworks/base/core/java/android/view/VelocityTracker.java
|
| 9e2ad36be87f2703b3d737189944d82f93bd4f27 |
|
31-Jul-2010 |
Jeff Brown <jeffbrown@google.com> |
Enhanced VelocityTracker for > 5 pointers and fixed bugs.
Improved PointerLocation tool to use VelocityTracker more efficiently
and correctly when multiple pointers are down.
Fixed a bug in TouchInputMapper where it was not correctly copying
the id to index map in the last touch data. This could cause strange
behavior on secondary pointer up events.
Also added finished callback pooling in InputQueue.
Change-Id: Ia85e52ac2fb7350960ea1d7edfbe81a1b3e8267b
/frameworks/base/core/java/android/view/VelocityTracker.java
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| b1110149cccc3b99e59ead34ca46e5ac026f6db9 |
|
13-May-2010 |
The Android Open Source Project <initial-contribution@android.com> |
merge from open-source master
Change-Id: I88a580162b34a80d1e3e7987b7a301c253afa0e8
|
| b79781af1ebc68dbaa1b44da43fd391de067a201 |
|
13-May-2010 |
Kenny Root <kroot@google.com> |
Use integer for loop counter instead of float
Change-Id: Iafaccbb3a3a7cbe0d67ed6827906d713c37ce89b
/frameworks/base/core/java/android/view/VelocityTracker.java
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| 80ea00c8391d4fa3a1966903af50732c337aadab |
|
10-Mar-2010 |
Romain Guy <romainguy@android.com> |
Fix the build.
Change-Id: I7ed20f3d2fb1a80974fbbfe42fdd2f8f135ee401
/frameworks/base/core/java/android/view/VelocityTracker.java
|
| 0bba68ddc7e489fd6fb1579417a656f77cbc1ab3 |
|
04-Mar-2010 |
Adam Powell <adamp@google.com> |
Fix VelocityTracker for CTS tests
/frameworks/base/core/java/android/view/VelocityTracker.java
|
| 73d8fca6ba1991dbcbcd4686212d087a5ae8de2d |
|
13-Feb-2010 |
Adam Powell <adamp@google.com> |
VelocityTracker now uses pointer id instead of index when referring to
multiple pointers. VelocityTracker now correctly handles
multitouch. Addresses http://b/issue?id=2439030
/frameworks/base/core/java/android/view/VelocityTracker.java
|
| 87da860616009a86e260e49bbefffe12c1a06607 |
|
09-Feb-2010 |
Adam Powell <adamp@google.com> |
Manually merged VelocityTracker changes
|
| ce760cd6df920efff026c8757a371692ac54fad4 |
|
03-Feb-2010 |
Marc Capdevielle <marc.capdevielle@gmail.com> |
Use a circular buffer in VelocityTracker
Optimizes the frequently called addPoint() method while keeping the
same velocity computation.
Thx Cyril Mottier for help and tests.
/frameworks/base/core/java/android/view/VelocityTracker.java
|
| 8acdb201bdad2cd03c07ebad9cda29f7971ed164 |
|
07-Jan-2010 |
Adam Powell <adamp@google.com> |
Added TransformGestureDetector (still in progress)
Modified VelocityTracker to track multiple pointers
Added TransformTest
/frameworks/base/core/java/android/view/VelocityTracker.java
|
| cf4550c3198d6b3d92cdc52707fe70d7cc0caa9f |
|
21-Jul-2009 |
Jean-Baptiste Queru <jbq@google.com> |
donut snapshot
/frameworks/base/core/java/android/view/VelocityTracker.java
|
| 4296fc4d326447875c26a925f12b3935632f13bb |
|
06-Jul-2009 |
Romain Guy <romainguy@android.com> |
Fixes #1444844. Set a maximum fling velocity in scrollable views.
/frameworks/base/core/java/android/view/VelocityTracker.java
|
| 843ef36f7b96cc19ea7d2996b7c8661b41ec3452 |
|
20-May-2009 |
Jean-Baptiste Queru <jbq@google.com> |
donut snapshot
/frameworks/base/core/java/android/view/VelocityTracker.java
|
| 2e9bbce84d9697a9dcccd02cec55dc485d985746 |
|
01-Apr-2009 |
Romain Guy <> |
AI 144013: Rename PoolFactory to Pools, to follow the java.util convention (Collections, Arrays.)
Automated import of CL 144013
/frameworks/base/core/java/android/view/VelocityTracker.java
|
| d928d6837dee4df30b06529164326722075da063 |
|
01-Apr-2009 |
Romain Guy <> |
AI 143890: Fixes #1749387. Improve the pooling of the VelocityTracker class. This introduces a new, hidden, API for pooling objects easily.
BUG=1749387
Automated import of CL 143890
/frameworks/base/core/java/android/view/VelocityTracker.java
|
| fb43fea68a00b7b147992b52b86305f6fbc1548e |
|
01-Apr-2009 |
Romain Guy <> |
AI 143815: am: CL 143758 Fixes #1749387. When a client of VelocityTracker obtains an instance from the pool, actually remove the object from the pool. Otherwise, several clients can share the same VelocityTracker which can lead to really weird side effects (including concurrency and UI issues.)
Original author: romainguy
Merged from: //branches/cupcake/...
Automated import of CL 143815
/frameworks/base/core/java/android/view/VelocityTracker.java
|
| d65addb4c9e8d552907bc2720e6127e0259b8f09 |
|
31-Mar-2009 |
Romain Guy <> |
AI 143758: Fixes #1749387. When a client of VelocityTracker obtains an instance from the pool, actually remove the object from the pool. Otherwise, several clients can share the same VelocityTracker which can lead to really weird side effects (including concurrency and UI issues.)
BUG=1749387
Automated import of CL 143758
/frameworks/base/core/java/android/view/VelocityTracker.java
|
| 9066cfe9886ac131c34d59ed0e2d287b0e3c0087 |
|
04-Mar-2009 |
The Android Open Source Project <initial-contribution@android.com> |
auto import from //depot/cupcake/@135843
/frameworks/base/core/java/android/view/VelocityTracker.java
|
| d83a98f4ce9cfa908f5c54bbd70f03eec07e7553 |
|
04-Mar-2009 |
The Android Open Source Project <initial-contribution@android.com> |
auto import from //depot/cupcake/@135843
/frameworks/base/core/java/android/view/VelocityTracker.java
|
| 54b6cfa9a9e5b861a9930af873580d6dc20f773c |
|
21-Oct-2008 |
The Android Open Source Project <initial-contribution@android.com> |
Initial Contribution
/frameworks/base/core/java/android/view/VelocityTracker.java
|