- dont bother children about resolving RTL properties if the ViewGroup parent
has not done anything
Change-Id: Iedf8a337097e04e1ab0054d59fc347e06b347ea7
The counter can be enabled by setting the system property called
debug.hwui.overdraw to the string "count". If the string is set
to "show", overdraw will be highlighted on screen instead of
printing out a simple counter.
Change-Id: I9a9c970d54bffab43138bbb7682f6c04bc2c40bd
When the Android runtime starts, the system preloads a series of assets
in the Zygote process. These assets are shared across all processes.
Unfortunately, each one of these assets is later uploaded in its own
OpenGL texture, once per process. This wastes memory and generates
unnecessary OpenGL state changes.
This CL introduces an asset server that provides an atlas to all processes.
Note: bitmaps used by skia shaders are *not* sampled from the atlas.
It's an uncommon use case and would require extra texture transforms
in the GL shaders.
WHAT IS THE ASSETS ATLAS
The "assets atlas" is a single, shareable graphic buffer that contains
all the system's preloaded bitmap drawables (this includes 9-patches.)
The atlas is made of two distinct objects: the graphic buffer that
contains the actual pixels and the map which indicates where each
preloaded bitmap can be found in the atlas (essentially a pair of
x and y coordinates.)
HOW IS THE ASSETS ATLAS GENERATED
Because we need to support a wide variety of devices and because it
is easy to change the list of preloaded drawables, the atlas is
generated at runtime, during the startup phase of the system process.
There are several steps that lead to the atlas generation:
1. If the device is booting for the first time, or if the device was
updated, we need to find the best atlas configuration. To do so,
the atlas service tries a number of width, height and algorithm
variations that allows us to pack as many assets as possible while
using as little memory as possible. Once a best configuration is found,
it gets written to disk in /data/system/framework_atlas
2. Given a best configuration (algorithm variant, dimensions and
number of bitmaps that can be packed in the atlas), the atlas service
packs all the preloaded bitmaps into a single graphic buffer object.
3. The packing is done using Skia in a temporary native bitmap. The
Skia bitmap is then copied into the graphic buffer using OpenGL ES
to benefit from texture swizzling.
HOW PROCESSES USE THE ATLAS
Whenever a process' hardware renderer initializes its EGL context,
it queries the atlas service for the graphic buffer and the map.
It is important to remember that both the context and the map will
be valid for the lifetime of the hardware renderer (if the system
process goes down, all apps get killed as well.)
Every time the hardware renderer needs to render a bitmap, it first
checks whether the bitmap can be found in the assets atlas. When
the bitmap is part of the atlas, texture coordinates are remapped
appropriately before rendering.
Change-Id: I8eaecf53e7f6a33d90da3d0047c5ceec89ea3af0
There were many places where the native object was being
accessed improperly. Also some places where CloseGuard might
not be acquired or released correctly or where the generation
count might not be updated.
Fixed them all.
That said, Surface isn't intended to be used concurrently
so please don't do it. This is only intended to make
hard to find crashes less likely.
Bug: 8328715
Change-Id: I981ef33425823e0fd7ad6b64443f2ec9b0c8335e
Fullscreen window's will not resize when the keyboard comes on screen,
regardless of the setting of the window's softInputMode field. This fix
clarifies the docs to make this behavior more obvious.
Issue #8754615 Clarify behavior of adjustResize and fullscreen interaction
Change-Id: Ie056db4e328cefaf0edb54fe8cfa7a08f320c8d0
Previously, onHoverEvent() would return true if a view was hoverable
and consume the event. After the change, it would return the result of
dispatchGenericMotionEventInternal(). As a result, touch exploration
caused multiple hover events to be sent from every view under a given
touch point. This change reverts to the original behavior and fixes
touch exploration.
BUG: 8723842
Change-Id: I0c7362f19c51bf21ed842711a03b7f02613958d2
bug:8666842
In SW rendering, a previous optimization avoided clipping to the
bounds of views that are layers. This breaks if the view fails to
create a layer (such as if it's too big), so instead look at whether
the view has a layer.
Change-Id: I653882035512012aefd91f06ff0bdc73aa5e4430
1. The accessibility events for switching a widget were dispatched
before we update the important for accessibility property. We
were lucky to get events in some cases since the pages in the
pager had alpha grater than zero, i.e. the page was already
set as important for accessibility, due to a running animation.
2. Accessibility focus clear event not fired if we give focus to
another view. The old focus was correctly cleared just the
events were not dispatched.
bug:8599670
Change-Id: Ia2647d77eaa4e10fbaf3a047dc9ea5b728f9c3c3
A call to ViewGroup.bringChildToFront() or View.bringToFront()
(which delegates to the parent's bringChildToFront() method) needs
to be followed by a call to requestLayout() and invalidate() on the
parent container in order for the changes to
actually happen. That is, the order of the child views would change, but
the parent container would not run layout or even invalidation without
being told to, so there would be no visible change until something else
caused a layout and invalidation to occur.
This change clarifies this requirement in the javadocs.
Issue #8667065 bringtoTop does not work
Change-Id: Ibe41a6318dddf9fb79382e1c9fd1d21ab4510976
