This change adds a delay before Animator::BeginFrame calls its
delegate's OnAnimatorNotifyIdle. This is because under certain
workloads, such as our parent view resizing us, which is communicated
via viewport change events, we won't have a frame scheduled yet in the
animator, despite the fact that we will go on to schedule a frame once
the viewport event arrives.
In Fuchsia's resizing performance test, on our reference high end x86-64
hardware, the previous logic was resulting in a ~45ms garbage collection
right after the first frame of an animation.
This allows the framework to know that a frame with the resized view is
ready and to behave deterministically to workaround the jank issue
described in flutter/flutter/19572
* Flush all embedded Android view on hot restart.
Adds an OnEngineRestarted method to PlatformView, this is currently only
implemented for Android where we need to use it for embedded views.
* review comments followup
* rename to OnPreEngineRestart, call before Clone
Instead, send them with the new unknown PointerDeviceKind.
We hit this when running `adb shell input tap` in tests which sends events with
an unknown tool type.
This also fills in a missing conversion for TOOL_TYPE_ERASER.
* Add an explicit `-[FlutterViewController init]` implementation
`-[FlutterViewController init]` currently works because it inherits
the `-[UIViewController init]` convenience initializer that invokes
the `-[UIViewController initWithNibName:bundle:]` designated
initializer that `FlutterViewController` overrides.
However, this doesn't seem to be explicitly documented, so it's a bit
confusing (or at least non-obvious), and it seems potentially
brittle. Add an explicit implementation of `-[FlutterViewController
init]` instead.
* Deprecate -[FlutterDartProject initFromDefaultSourceForConfiguration] (#18886)
`-[FlutterDartProject initFromDefaultSourceForConfiguration]` no
longer seems very useful. It calls `-initWithPrecompiledDartBundle:`
or `-initWithFlutterAssets:dartMain:packages:`, but since it now
passes `nil` for all arguments, both paths end up doing the same
thing.
Additionally, `-initFromDefaultSourceForConfiguration` is awkward to
use in Swift. The automatically generated Swift interface is:
public convenience init!(fromDefaultSourceForConfiguration: ())
and it's not obvious how to call that.
Let's deprecate `-initFromDefaultSourceForConfiguration` and instead
expect callers to use the existing `-init` method. (We can make
`-init` do different things for different build configurations later
if necessary.)
Bonus: Rename some parameters to make it more obvious when they may
be `nil`.
Don't emit a "VSYNC" event when running on Fuchsia, as traces on Fuchsia
are typically recorded across the whole system, causing the events to
collide with each other.
Since frontend_server --incremental doesn't support --link-platform, instead of baking host app into the snapshot, load it from kernel file when running in debug mode.
When the FlutterView's window loses focus Flutter cannot bring up the
keyboard (so e.g tapping on text fields doesn't work).
This workaround makes sure that Flutter text fields are working but
unfortunately now the embedded Android view cannot bring up the keyboard
as it's window is not focused.
Submitting this until as a stop gap while we're trying to figure out if
it's possible to allow both windows to bring up the keyboard.
