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abdullh.alsoleman
Front-End
Commits
3f629153
Unverified
Commit
3f629153
authored
Mar 13, 2021
by
Gary Roumanis
Committed by
GitHub
Mar 13, 2021
Browse files
Options
Browse Files
Download
Email Patches
Plain Diff
Update ClampingScrollSimulation to better match Android (#77497)
parent
9f420ffb
Changes
8
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Showing
8 changed files
with
264 additions
and
59 deletions
+264
-59
generate_android_spline_data.dart
dev/tools/generate_android_spline_data.dart
+61
-0
scroll_simulation.dart
packages/flutter/lib/src/widgets/scroll_simulation.dart
+169
-41
list_wheel_scroll_view_test.dart
...ges/flutter/test/widgets/list_wheel_scroll_view_test.dart
+2
-2
scroll_simulation_test.dart
packages/flutter/test/widgets/scroll_simulation_test.dart
+18
-1
scrollable_fling_test.dart
packages/flutter/test/widgets/scrollable_fling_test.dart
+1
-1
scrollable_semantics_test.dart
packages/flutter/test/widgets/scrollable_semantics_test.dart
+5
-5
scrollable_test.dart
packages/flutter/test/widgets/scrollable_test.dart
+6
-7
slivers_appbar_floating_pinned_test.dart
...ter/test/widgets/slivers_appbar_floating_pinned_test.dart
+2
-2
No files found.
dev/tools/generate_android_spline_data.dart
0 → 100644
View file @
3f629153
// Copyright 2014 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
const
int
_nbSamples
=
100
;
final
List
<
double
>
_splinePosition
=
List
<
double
>.
filled
(
_nbSamples
+
1
,
0.0
);
final
List
<
double
>
_splineTime
=
List
<
double
>.
filled
(
_nbSamples
+
1
,
0.0
);
const
double
_startTension
=
0.5
;
const
double
_endTension
=
1.0
;
const
double
_inflexion
=
0.35
;
// Generate the spline data used in ClampingScrollSimulation.
//
// This logic is a translation of the 2-dimensional logic found in
// https://android.googlesource.com/platform/frameworks/base/+/master/core/java/android/widget/Scroller.java.
//
// The output of this program should be copied over to [_splinePosition] in
// flutter/packages/flutter/lib/src/widgets/scroll_simulation.dart.
void
main
(
)
{
const
double
p1
=
_startTension
*
_inflexion
;
const
double
p2
=
1.0
-
_endTension
*
(
1.0
-
_inflexion
);
double
xMin
=
0.0
;
double
yMin
=
0.0
;
for
(
int
i
=
0
;
i
<
_nbSamples
;
i
++)
{
final
double
alpha
=
i
/
_nbSamples
;
double
xMax
=
1.0
;
double
x
,
tx
,
coef
;
while
(
true
)
{
x
=
xMin
+
(
xMax
-
xMin
)
/
2.0
;
coef
=
3.0
*
x
*
(
1.0
-
x
);
tx
=
coef
*
((
1.0
-
x
)
*
p1
+
x
*
p2
)
+
x
*
x
*
x
;
if
((
tx
-
alpha
).
abs
()
<
1
e
-
5
)
{
break
;
}
if
(
tx
>
alpha
)
{
xMax
=
x
;
}
else
{
xMin
=
x
;
}
}
_splinePosition
[
i
]
=
coef
*
((
1.0
-
x
)
*
_startTension
+
x
)
+
x
*
x
*
x
;
double
yMax
=
1.0
;
double
y
,
dy
;
while
(
true
)
{
y
=
yMin
+
(
yMax
-
yMin
)
/
2.0
;
coef
=
3.0
*
y
*
(
1.0
-
y
);
dy
=
coef
*
((
1.0
-
y
)
*
_startTension
+
y
)
+
y
*
y
*
y
;
if
((
dy
-
alpha
).
abs
()
<
1
e
-
5
)
{
break
;
}
if
(
dy
>
alpha
)
{
yMax
=
y
;
}
else
{
yMin
=
y
;
}
}
_splineTime
[
i
]
=
coef
*
((
1.0
-
y
)
*
p1
+
y
*
p2
)
+
y
*
y
*
y
;
}
_splinePosition
[
_nbSamples
]
=
_splineTime
[
_nbSamples
]
=
1.0
;
print
(
_splinePosition
);
}
packages/flutter/lib/src/widgets/scroll_simulation.dart
View file @
3f629153
...
@@ -129,6 +129,8 @@ class BouncingScrollSimulation extends Simulation {
...
@@ -129,6 +129,8 @@ class BouncingScrollSimulation extends Simulation {
}
}
}
}
const
double
_inflexion
=
0.35
;
/// An implementation of scroll physics that matches Android.
/// An implementation of scroll physics that matches Android.
///
///
/// See also:
/// See also:
...
@@ -147,10 +149,9 @@ class ClampingScrollSimulation extends Simulation {
...
@@ -147,10 +149,9 @@ class ClampingScrollSimulation extends Simulation {
required
this
.
velocity
,
required
this
.
velocity
,
this
.
friction
=
0.015
,
this
.
friction
=
0.015
,
Tolerance
tolerance
=
Tolerance
.
defaultTolerance
,
Tolerance
tolerance
=
Tolerance
.
defaultTolerance
,
})
:
assert
(
_flingVelocityPenetration
(
0.0
)
==
_initialVelocityPenetration
),
})
:
super
(
tolerance:
tolerance
)
{
super
(
tolerance:
tolerance
)
{
_duration
=
_splineFlingDuration
(
velocity
);
_duration
=
_flingDuration
(
velocity
);
_distance
=
_splineFlingDistance
(
velocity
);
_distance
=
(
velocity
*
_duration
/
_initialVelocityPenetration
).
abs
();
}
}
/// The position of the particle at the beginning of the simulation.
/// The position of the particle at the beginning of the simulation.
...
@@ -165,7 +166,7 @@ class ClampingScrollSimulation extends Simulation {
...
@@ -165,7 +166,7 @@ class ClampingScrollSimulation extends Simulation {
/// The more friction the particle experiences, the sooner it stops.
/// The more friction the particle experiences, the sooner it stops.
final
double
friction
;
final
double
friction
;
late
double
_duration
;
late
int
_duration
;
late
double
_distance
;
late
double
_distance
;
// See DECELERATION_RATE.
// See DECELERATION_RATE.
...
@@ -173,59 +174,186 @@ class ClampingScrollSimulation extends Simulation {
...
@@ -173,59 +174,186 @@ class ClampingScrollSimulation extends Simulation {
// See computeDeceleration().
// See computeDeceleration().
static
double
_decelerationForFriction
(
double
friction
)
{
static
double
_decelerationForFriction
(
double
friction
)
{
return
friction
*
61774.04968
;
return
9.80665
*
39.37
*
friction
*
1.0
*
// Flutter operates on logical pixels so the DPI should be 1.0.
160.0
;
}
}
// See getSplineFlingDuration(). Returns a value in seconds.
// See getSplineDeceleration().
double
_flingDuration
(
double
velocity
)
{
double
_splineDeceleration
(
double
velocity
)
{
// See mPhysicalCoeff
return
math
.
log
(
_inflexion
*
final
double
scaledFriction
=
friction
*
_decelerationForFriction
(
0.84
);
velocity
.
abs
()
/
(
friction
*
_decelerationForFriction
(
0.84
)));
// See getSplineDeceleration().
final
double
deceleration
=
math
.
log
(
0.35
*
velocity
.
abs
()
/
scaledFriction
);
return
math
.
exp
(
deceleration
/
(
_kDecelerationRate
-
1.0
));
}
}
// Based on a cubic curve fit to the Scroller.computeScrollOffset() values
// See getSplineFlingDuration().
// produced for an initial velocity of 4000. The value of Scroller.getDuration()
int
_splineFlingDuration
(
double
velocity
)
{
// and Scroller.getFinalY() were 686ms and 961 pixels respectively.
final
double
deceleration
=
_splineDeceleration
(
velocity
);
//
return
(
1000
*
math
.
exp
(
deceleration
/
(
_kDecelerationRate
-
1.0
))).
round
();
// Algebra courtesy of Wolfram Alpha.
//
// f(x) = scrollOffset, x is time in milliseconds
// f(x) = 3.60882×10^-6 x^3 - 0.00668009 x^2 + 4.29427 x - 3.15307
// f(x) = 3.60882×10^-6 x^3 - 0.00668009 x^2 + 4.29427 x, so f(0) is 0
// f(686ms) = 961 pixels
// Scale to f(0 <= t <= 1.0), x = t * 686
// f(t) = 1165.03 t^3 - 3143.62 t^2 + 2945.87 t
// Scale f(t) so that 0.0 <= f(t) <= 1.0
// f(t) = (1165.03 t^3 - 3143.62 t^2 + 2945.87 t) / 961.0
// = 1.2 t^3 - 3.27 t^2 + 3.065 t
static
const
double
_initialVelocityPenetration
=
3.065
;
static
double
_flingDistancePenetration
(
double
t
)
{
return
(
1.2
*
t
*
t
*
t
)
-
(
3.27
*
t
*
t
)
+
(
_initialVelocityPenetration
*
t
);
}
}
// The derivative of the _flingDistancePenetration() function.
// See getSplineFlingDistance().
static
double
_flingVelocityPenetration
(
double
t
)
{
double
_splineFlingDistance
(
double
velocity
)
{
return
(
3.6
*
t
*
t
)
-
(
6.54
*
t
)
+
_initialVelocityPenetration
;
final
double
l
=
_splineDeceleration
(
velocity
);
final
double
decelMinusOne
=
_kDecelerationRate
-
1.0
;
return
friction
*
_decelerationForFriction
(
0.84
)
*
math
.
exp
(
_kDecelerationRate
/
decelMinusOne
*
l
);
}
}
@override
@override
double
x
(
double
time
)
{
double
x
(
double
time
)
{
final
double
t
=
(
time
/
_duration
).
clamp
(
0.0
,
1.0
);
if
(
time
==
0
)
{
return
position
+
_distance
*
_flingDistancePenetration
(
t
)
*
velocity
.
sign
;
return
position
;
}
final
_NBSample
sample
=
_NBSample
(
time
,
_duration
);
return
position
+
(
sample
.
distanceCoef
*
_distance
)
*
velocity
.
sign
;
}
}
@override
@override
double
dx
(
double
time
)
{
double
dx
(
double
time
)
{
final
double
t
=
(
time
/
_duration
).
clamp
(
0.0
,
1.0
);
if
(
time
==
0
)
{
return
_distance
*
_flingVelocityPenetration
(
t
)
*
velocity
.
sign
/
_duration
;
return
velocity
;
}
final
_NBSample
sample
=
_NBSample
(
time
,
_duration
);
return
sample
.
velocityCoef
*
_distance
/
_duration
*
velocity
.
sign
*
1000.0
;
}
}
@override
@override
bool
isDone
(
double
time
)
{
bool
isDone
(
double
time
)
{
return
time
>=
_duration
;
return
time
*
1000.0
>=
_duration
;
}
}
class
_NBSample
{
_NBSample
(
double
time
,
int
duration
)
{
// See computeScrollOffset().
final
double
t
=
time
*
1000.0
/
duration
;
final
int
index
=
(
_nbSamples
*
t
).
clamp
(
0
,
_nbSamples
).
round
();
_distanceCoef
=
1.0
;
_velocityCoef
=
0.0
;
if
(
index
<
_nbSamples
)
{
final
double
tInf
=
index
/
_nbSamples
;
final
double
tSup
=
(
index
+
1
)
/
_nbSamples
;
final
double
dInf
=
_splinePosition
[
index
];
final
double
dSup
=
_splinePosition
[
index
+
1
];
_velocityCoef
=
(
dSup
-
dInf
)
/
(
tSup
-
tInf
);
_distanceCoef
=
dInf
+
(
t
-
tInf
)
*
_velocityCoef
;
}
}
}
late
double
_velocityCoef
;
double
get
velocityCoef
=>
_velocityCoef
;
late
double
_distanceCoef
;
double
get
distanceCoef
=>
_distanceCoef
;
static
const
int
_nbSamples
=
100
;
// Generated from dev/tools/generate_android_spline_data.dart.
static
final
List
<
double
>
_splinePosition
=
<
double
>[
0.000022888183591973643
,
0.028561000304762274
,
0.05705195792956655
,
0.08538917797618413
,
0.11349556286812107
,
0.14129881694635613
,
0.16877157254923383
,
0.19581093511175632
,
0.22239649722992452
,
0.24843841866631658
,
0.2740024733220569
,
0.298967680744136
,
0.32333234658228116
,
0.34709556909569184
,
0.3702249257894571
,
0.39272483400399893
,
0.41456988647721615
,
0.43582889025419114
,
0.4564192786416
,
0.476410299013587
,
0.4957560715637827
,
0.5145493169954743
,
0.5327205670880077
,
0.5502846891191615
,
0.5673274324802855
,
0.583810881323224
,
0.5997478744397482
,
0.615194045299478
,
0.6301165005270208
,
0.6445484042257972
,
0.6585198219185201
,
0.6720397744233084
,
0.6850997688076114
,
0.6977281404741683
,
0.7099506591298411
,
0.7217749311525871
,
0.7331784038850426
,
0.7442308394229518
,
0.7549087205105974
,
0.7652471277371271
,
0.7752251637549381
,
0.7848768260203478
,
0.7942056937103814
,
0.8032299679689082
,
0.8119428702388629
,
0.8203713516576219
,
0.8285187880808974
,
0.8363794492831295
,
0.8439768562813565
,
0.851322799855549
,
0.8584111051351724
,
0.8652534074722162
,
0.8718525580962131
,
0.8782333271742155
,
0.8843892099362031
,
0.8903155590440985
,
0.8960465359221951
,
0.9015574505919048
,
0.9068736766459904
,
0.9119951682409297
,
0.9169321898723632
,
0.9216747065581234
,
0.9262420604674766
,
0.9306331858366086
,
0.9348476990715433
,
0.9389007110754832
,
0.9427903495057521
,
0.9465220679845756
,
0.9500943036519721
,
0.9535176728088761
,
0.9567898524767604
,
0.959924306623116
,
0.9629127700159108
,
0.9657622101750765
,
0.9684818726275105
,
0.9710676079044347
,
0.9735231939498
,
0.9758514437576309
,
0.9780599066560445
,
0.9801485715370128
,
0.9821149805689633
,
0.9839677526782791
,
0.9857085499421516
,
0.9873347811966005
,
0.9888547171706613
,
0.9902689443512227
,
0.9915771042095881
,
0.9927840651641069
,
0.9938913963715834
,
0.9948987305580712
,
0.9958114963810524
,
0.9966274782266875
,
0.997352148697352
,
0.9979848677523623
,
0.9985285021374979
,
0.9989844084453229
,
0.9993537595844986
,
0.999638729860106
,
0.9998403888004533
,
0.9999602810470701
,
1.0
];
}
}
packages/flutter/test/widgets/list_wheel_scroll_view_test.dart
View file @
3f629153
...
@@ -2,9 +2,9 @@
...
@@ -2,9 +2,9 @@
// Use of this source code is governed by a BSD-style license that can be
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// found in the LICENSE file.
import
'package:flutter_test/flutter_test.dart'
;
import
'package:flutter/rendering.dart'
;
import
'package:flutter/rendering.dart'
;
import
'package:flutter/widgets.dart'
;
import
'package:flutter/widgets.dart'
;
import
'package:flutter_test/flutter_test.dart'
;
import
'../rendering/mock_canvas.dart'
;
import
'../rendering/mock_canvas.dart'
;
import
'../rendering/rendering_tester.dart'
;
import
'../rendering/rendering_tester.dart'
;
...
@@ -1195,7 +1195,7 @@ void main() {
...
@@ -1195,7 +1195,7 @@ void main() {
await
tester
.
fling
(
await
tester
.
fling
(
find
.
byType
(
ListWheelScrollView
),
find
.
byType
(
ListWheelScrollView
),
const
Offset
(
0.0
,
-
50.0
),
const
Offset
(
0.0
,
-
50.0
),
8
00.0
,
1
00.0
,
);
);
// At this moment, the ballistics is started but 50px is still inside the
// At this moment, the ballistics is started but 50px is still inside the
...
...
packages/flutter/test/widgets/scroll_simulation_test.dart
View file @
3f629153
...
@@ -2,8 +2,8 @@
...
@@ -2,8 +2,8 @@
// Use of this source code is governed by a BSD-style license that can be
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// found in the LICENSE file.
import
'package:flutter_test/flutter_test.dart'
;
import
'package:flutter/widgets.dart'
;
import
'package:flutter/widgets.dart'
;
import
'package:flutter_test/flutter_test.dart'
;
void
main
(
)
{
void
main
(
)
{
test
(
'ClampingScrollSimulation has a stable initial conditions'
,
()
{
test
(
'ClampingScrollSimulation has a stable initial conditions'
,
()
{
...
@@ -23,4 +23,21 @@ void main() {
...
@@ -23,4 +23,21 @@ void main() {
checkInitialConditions
(
75.0
,
614.2093
);
checkInitialConditions
(
75.0
,
614.2093
);
checkInitialConditions
(
5469.0
,
182.114534
);
checkInitialConditions
(
5469.0
,
182.114534
);
});
});
test
(
'ClampingScrollSimulation velocity eventually reaches zero'
,
()
{
void
checkFinalConditions
(
double
position
,
double
velocity
)
{
final
ClampingScrollSimulation
simulation
=
ClampingScrollSimulation
(
position:
position
,
velocity:
velocity
);
expect
(
simulation
.
dx
(
10.0
),
equals
(
0.0
));
}
checkFinalConditions
(
51.0
,
2000.0
);
checkFinalConditions
(
584.0
,
2617.294734
);
checkFinalConditions
(
345.0
,
1982.785934
);
checkFinalConditions
(
0.0
,
1831.366634
);
checkFinalConditions
(-
156.2
,
1541.57665
);
checkFinalConditions
(
4.0
,
1139.250439
);
checkFinalConditions
(
4534.0
,
1073.553798
);
checkFinalConditions
(
75.0
,
614.2093
);
checkFinalConditions
(
5469.0
,
182.114534
);
});
}
}
packages/flutter/test/widgets/scrollable_fling_test.dart
View file @
3f629153
...
@@ -147,6 +147,6 @@ void main() {
...
@@ -147,6 +147,6 @@ void main() {
expect
(
log
,
equals
(<
String
>[
'tap 21'
]));
expect
(
log
,
equals
(<
String
>[
'tap 21'
]));
await
tester
.
tap
(
find
.
byType
(
Scrollable
));
await
tester
.
tap
(
find
.
byType
(
Scrollable
));
await
tester
.
pump
(
const
Duration
(
milliseconds:
50
));
await
tester
.
pump
(
const
Duration
(
milliseconds:
50
));
expect
(
log
,
equals
(<
String
>[
'tap 21'
,
'tap 4
8
'
]));
expect
(
log
,
equals
(<
String
>[
'tap 21'
,
'tap 4
9
'
]));
});
});
}
}
packages/flutter/test/widgets/scrollable_semantics_test.dart
View file @
3f629153
...
@@ -4,10 +4,10 @@
...
@@ -4,10 +4,10 @@
import
'dart:ui'
;
import
'dart:ui'
;
import
'package:flutter/gestures.dart'
show
DragStartBehavior
;
import
'package:flutter/material.dart'
;
import
'package:flutter/material.dart'
;
import
'package:flutter_test/flutter_test.dart'
;
import
'package:flutter/rendering.dart'
;
import
'package:flutter/rendering.dart'
;
import
'package:flutter
/gestures.dart'
show
DragStartBehavior
;
import
'package:flutter
_test/flutter_test.dart'
;
import
'semantics_tester.dart'
;
import
'semantics_tester.dart'
;
...
@@ -232,7 +232,7 @@ void main() {
...
@@ -232,7 +232,7 @@ void main() {
expect
(
semantics
,
includesNodeWith
(
expect
(
semantics
,
includesNodeWith
(
scrollExtentMin:
0.0
,
scrollExtentMin:
0.0
,
scrollPosition:
3
80.2
,
scrollPosition:
3
94.3
,
scrollExtentMax:
520.0
,
scrollExtentMax:
520.0
,
actions:
<
SemanticsAction
>[
actions:
<
SemanticsAction
>[
SemanticsAction
.
scrollUp
,
SemanticsAction
.
scrollUp
,
...
@@ -281,7 +281,7 @@ void main() {
...
@@ -281,7 +281,7 @@ void main() {
expect
(
semantics
,
includesNodeWith
(
expect
(
semantics
,
includesNodeWith
(
scrollExtentMin:
0.0
,
scrollExtentMin:
0.0
,
scrollPosition:
3
80.2
,
scrollPosition:
3
94.3
,
scrollExtentMax:
double
.
infinity
,
scrollExtentMax:
double
.
infinity
,
actions:
<
SemanticsAction
>[
actions:
<
SemanticsAction
>[
SemanticsAction
.
scrollUp
,
SemanticsAction
.
scrollUp
,
...
@@ -293,7 +293,7 @@ void main() {
...
@@ -293,7 +293,7 @@ void main() {
expect
(
semantics
,
includesNodeWith
(
expect
(
semantics
,
includesNodeWith
(
scrollExtentMin:
0.0
,
scrollExtentMin:
0.0
,
scrollPosition:
7
60.4
,
scrollPosition:
7
88.6
,
scrollExtentMax:
double
.
infinity
,
scrollExtentMax:
double
.
infinity
,
actions:
<
SemanticsAction
>[
actions:
<
SemanticsAction
>[
SemanticsAction
.
scrollUp
,
SemanticsAction
.
scrollUp
,
...
...
packages/flutter/test/widgets/scrollable_test.dart
View file @
3f629153
...
@@ -9,7 +9,6 @@ import 'package:flutter/material.dart';
...
@@ -9,7 +9,6 @@ import 'package:flutter/material.dart';
import
'package:flutter/rendering.dart'
;
import
'package:flutter/rendering.dart'
;
import
'package:flutter/scheduler.dart'
;
import
'package:flutter/scheduler.dart'
;
import
'package:flutter/services.dart'
;
import
'package:flutter/services.dart'
;
import
'package:flutter_test/flutter_test.dart'
;
import
'package:flutter_test/flutter_test.dart'
;
Future
<
void
>
pumpTest
(
Future
<
void
>
pumpTest
(
...
@@ -890,8 +889,8 @@ void main() {
...
@@ -890,8 +889,8 @@ void main() {
expect
(
find
.
byKey
(
const
ValueKey
<
String
>(
'Box 0'
)),
findsNothing
);
expect
(
find
.
byKey
(
const
ValueKey
<
String
>(
'Box 0'
)),
findsNothing
);
expect
(
find
.
byKey
(
const
ValueKey
<
String
>(
'Box 52'
)),
findsOneWidget
);
expect
(
find
.
byKey
(
const
ValueKey
<
String
>(
'Box 52'
)),
findsOneWidget
);
expect
(
expensiveWidgets
,
38
);
expect
(
expensiveWidgets
,
40
);
expect
(
cheapWidgets
,
2
0
);
expect
(
cheapWidgets
,
2
1
);
});
});
testWidgets
(
'Can recommendDeferredLoadingForContext - override heuristic'
,
(
WidgetTester
tester
)
async
{
testWidgets
(
'Can recommendDeferredLoadingForContext - override heuristic'
,
(
WidgetTester
tester
)
async
{
...
@@ -933,9 +932,9 @@ void main() {
...
@@ -933,9 +932,9 @@ void main() {
expect
(
find
.
byKey
(
const
ValueKey
<
String
>(
'Box 0'
)),
findsNothing
);
expect
(
find
.
byKey
(
const
ValueKey
<
String
>(
'Box 0'
)),
findsNothing
);
expect
(
find
.
byKey
(
const
ValueKey
<
String
>(
'Cheap box 52'
)),
findsOneWidget
);
expect
(
find
.
byKey
(
const
ValueKey
<
String
>(
'Cheap box 52'
)),
findsOneWidget
);
expect
(
expensiveWidgets
,
1
8
);
expect
(
expensiveWidgets
,
1
7
);
expect
(
cheapWidgets
,
4
0
);
expect
(
cheapWidgets
,
4
4
);
expect
(
physics
.
count
,
4
0
+
18
);
expect
(
physics
.
count
,
4
4
+
17
);
});
});
testWidgets
(
'Can recommendDeferredLoadingForContext - override heuristic and always return true'
,
(
WidgetTester
tester
)
async
{
testWidgets
(
'Can recommendDeferredLoadingForContext - override heuristic and always return true'
,
(
WidgetTester
tester
)
async
{
...
@@ -976,7 +975,7 @@ void main() {
...
@@ -976,7 +975,7 @@ void main() {
expect
(
find
.
byKey
(
const
ValueKey
<
String
>(
'Cheap box 52'
)),
findsOneWidget
);
expect
(
find
.
byKey
(
const
ValueKey
<
String
>(
'Cheap box 52'
)),
findsOneWidget
);
expect
(
expensiveWidgets
,
0
);
expect
(
expensiveWidgets
,
0
);
expect
(
cheapWidgets
,
58
);
expect
(
cheapWidgets
,
61
);
});
});
testWidgets
(
'ensureVisible does not move PageViews'
,
(
WidgetTester
tester
)
async
{
testWidgets
(
'ensureVisible does not move PageViews'
,
(
WidgetTester
tester
)
async
{
...
...
packages/flutter/test/widgets/slivers_appbar_floating_pinned_test.dart
View file @
3f629153
...
@@ -2,9 +2,9 @@
...
@@ -2,9 +2,9 @@
// Use of this source code is governed by a BSD-style license that can be
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// found in the LICENSE file.
import
'package:flutter/material.dart'
;
import
'package:flutter/rendering.dart'
;
import
'package:flutter/rendering.dart'
;
import
'package:flutter_test/flutter_test.dart'
;
import
'package:flutter_test/flutter_test.dart'
;
import
'package:flutter/material.dart'
;
import
'semantics_tester.dart'
;
import
'semantics_tester.dart'
;
...
@@ -151,7 +151,7 @@ void main() {
...
@@ -151,7 +151,7 @@ void main() {
);
);
expect
(
semantics
,
hasSemantics
(
expectedSemantics
,
ignoreTransform:
true
,
ignoreId:
true
,
ignoreRect:
true
));
expect
(
semantics
,
hasSemantics
(
expectedSemantics
,
ignoreTransform:
true
,
ignoreId:
true
,
ignoreRect:
true
));
await
tester
.
fling
(
find
.
text
(
'Tile 2'
),
const
Offset
(
0
,
-
600
),
200
0
);
await
tester
.
fling
(
find
.
text
(
'Tile 2'
),
const
Offset
(
0
,
-
600
),
195
0
);
await
tester
.
pumpAndSettle
();
await
tester
.
pumpAndSettle
();
expectedSemantics
=
TestSemantics
.
root
(
expectedSemantics
=
TestSemantics
.
root
(
...
...
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