英文:
How can I resolve the argument type error in gesture_detector_builder.dart related to TapDownDetails and TapDragDownDetails in Flutter?
问题
Error: 参数类型 'void Function(TapDownDetails)' 不能赋值给参数类型 'void Function(TapDragDownDetails)?'。
- 'TapDownDetails' 来自 'package:flutter/src/gestures/tap.dart' ('/C:/Flutter/flutter/packages/flutter/lib/src/gestures/tap.dart')。
- 'TapDragDownDetails' 来自 'package:flutter/src/widgets/tap_and_drag_gestures.dart' ('/C:/Flutter/flutter/packages/flutter/lib/src/widgets/tap_and_drag_gestures.dart')。
onTapDown: onTapDown,
^
Error: 参数类型 'void Function(TapUpDetails)' 不能赋值给参数类型 'void Function(TapDragUpDetails)?'。
- 'TapUpDetails' 来自 'package:flutter/src/gestures/tap.dart' ('/C:/Flutter/flutter/packages/flutter/lib/src/gestures/tap.dart')。
- 'TapDragUpDetails' 来自 'package:flutter/src/widgets/tap_and_drag_gestures.dart' ('/C:/Flutter/flutter/packages/flutter/lib/src/widgets/tap_and_drag_gestures.dart')。
onSingleTapUp: onSingleTapUp,
^
Error: 参数类型 'void Function(TapDownDetails)' 不能赋值给参数类型 'void Function(TapDragDownDetails)?'。
- 'TapDownDetails' 来自 'package:flutter/src/gestures/tap.dart' ('/C:/Flutter/flutter/packages/flutter/lib/src/gestures/tap.dart')。
- 'TapDragDownDetails' 来自 'package:flutter/src/widgets/tap_and_drag_gestures.dart' ('/C:/Flutter/flutter/packages/flutter/lib/src/widgets/tap_and_drag_gestures.dart')。
onDoubleTapDown: onDoubleTapDown,
^
Error: 参数类型 'void Function(DragStartDetails)' 不能赋值给参数类型 'void Function(TapDragStartDetails)?'。
- 'DragStartDetails' 来自 'package:flutter/src/gestures/drag_details.dart' ('/C:/Flutter/flutter/packages/flutter/lib/src/gestures/drag_details.dart')。
- 'TapDragStartDetails' 来自 'package:flutter/src/widgets/tap_and_drag_gestures.dart' ('/C:/Flutter/flutter/packages/flutter/lib/src/widgets/tap_and_drag_gestures.dart')。
onDragSelectionStart: onDragSelectionStart,
^
Error: 参数类型 'void Function(DragStartDetails, DragUpdateDetails)' 不能赋值给参数类型 'void Function(TapDragUpdateDetails)?'。
- 'DragStartDetails' 来自 'package:flutter/src/gestures/drag_details.dart' ('/C:/Flutter/flutter/packages/flutter/lib/src/gestures/drag_details.dart')。
- 'DragUpdateDetails' 来自 'package:flutter/src/gestures/drag_details.dart' ('/C:/Flutter/flutter/packages/flutter/lib/src/gestures/drag_details.dart')。
- 'TapDragUpdateDetails' 来自 'package:flutter/src/widgets/tap_and_drag_gestures.dart' ('/C:/Flutter/flutter/packages/flutter/lib/src/widgets/tap_and_drag_gestures.dart')。
onDragSelectionUpdate: onDragSelectionUpdate,
^
Error: 参数类型 'void Function(DragEndDetails)' 不能赋值给参数类型 'void Function(TapDragEndDetails)?'。
- 'DragEndDetails' 来自 'package:flutter/src/gestures/drag_details.dart' ('/C:/Flutter/flutter/packages/flutter/lib/src/gestures/drag_details.dart')。
- 'TapDragEndDetails' 来自 'package:flutter/src/widgets/tap_and_drag_gestures.dart' ('/C:/Flutter/flutter/packages/flutter/lib/src/widgets/tap_and_drag_gestures.dart')。
onDragSelectionEnd: onDragSelectionEnd,
^
构建失败:Gradle 任务 assembleDebug 失败,退出代码为 1
-
位置:
脚本 'C:\Flutter\flutter\packages\flutter_tools\gradle\flutter.gradle' 第 1201 行 -
出错原因:
任务 ':app:compileFlutterBuildDebug' 执行失败。 -
尝试:
运行时使用 --stacktrace 选项获取堆栈跟踪。
运行时使用 --info 或 --debug 选项获取更多日志输出。
运行时使用 --scan 获取完整的洞察信息。 -
在 https://help.gradle.org 获取更多帮助。
构建在 1 分 50 秒内失败
E/AndroidRuntime(29997): 致命异常:ScreenDecorations
E/AndroidRuntime(29997): 进程:com.android.systemui,PID:29997
E/AndroidRuntime(29997): java.lang.NullPointerException:指定为非 null 的参数为 null:方法 kotlin.jvm.internal.Intrinsics.checkNotNullParameter,参数 bottomLeft
E/AndroidRuntime(29997): at com.android.systemui.statusbar.events.PrivacyDotViewController.initialize(Unknown Source:22)
E/AndroidRuntime(29997): at com.android.systemui.ScreenDecorations.setupDecorations(ScreenDecorations.java:315)
E/AndroidRuntime(29997): at com.android.systemui.ScreenDecorations.startOnScreenDecorationsThread(ScreenDecorations.java:252)
E/AndroidRuntime(29997): at com.android.systemui.ScreenDecorations.$r8$lambda$bRx4s-frKyGv-SmpobluoualBbQ(Unknown Source:0)
E/AndroidRuntime(29997): at com.android.systemui.ScreenDecorations$$ExternalSyntheticLambda2.run(Unknown Source:2)
E/AndroidRuntime(29997): at android.os.Handler.handleCallback(Handler.java:938)
E/AndroidRuntime(29997): at android.os.Handler.dispatchMessage(Handler.java:99)
E/AndroidRuntime(29997): at android.os.Looper.loopOnce(Looper.java:201)
E/AndroidRuntime(29997): at android.os.Looper.loop(Looper.java:288)
E/AndroidRuntime(29997): at android.os.HandlerThread.run(HandlerThread.java:67)
异常:Gradle 任务 assembleDebug 失败,退出码为 1
已退出(SIGTERM)
我想要更新我的应用程序,所以我只需更新了包以及 Flutter。然后当我运行它时,抛出上述错误。
这是我的 pubspec.yaml packages:
http: ^1.0.0
webfeed: 0.7.0
xml: ^5.4.1
cupertino_icons: 1.0.5
flutter_launcher_icons: ^0.11.0
shared_preferences: ^2.1.1
share: 2.0.4
launch_review: 3.0.1
url_launcher: ^6.1.11
fluttertoast: ^8.2.2
font_awesome_flutter: 10.4.0
webview_flutter: ^2.3.4
flutter_html: 2.2.1
percent
英文:
: Error: The argument type 'void Function(TapDownDetails)' can't be assigned to the parameter type 'void Function(TapDragDownDetails)?'.
- 'TapDownDetails' is from 'package:flutter/src/gestures/tap.dart' ('/C:/Flutter/flutter/packages/flutter/lib/src/gestures/tap.dart').
- 'TapDragDownDetails' is from 'package:flutter/src/widgets/tap_and_drag_gestures.dart' ('/C:/Flutter/flutter/packages/flutter/lib/src/widgets/tap_and_drag_gestures.dart').
onTapDown: onTapDown,
^
: Error: The argument type 'void Function(TapUpDetails)' can't be assigned to the parameter type 'void Function(TapDragUpDetails)?'. - 'TapUpDetails' is from 'package:flutter/src/gestures/tap.dart' ('/C:/Flutter/flutter/packages/flutter/lib/src/gestures/tap.dart').
- 'TapDragUpDetails' is from 'package:flutter/src/widgets/tap_and_drag_gestures.dart' ('/C:/Flutter/flutter/packages/flutter/lib/src/widgets/tap_and_drag_gestures.dart').
onSingleTapUp: onSingleTapUp,
^
: Error: The argument type 'void Function(TapDownDetails)' can't be assigned to the parameter type 'void Function(TapDragDownDetails)?'. - 'TapDownDetails' is from 'package:flutter/src/gestures/tap.dart' ('/C:/Flutter/flutter/packages/flutter/lib/src/gestures/tap.dart').
- 'TapDragDownDetails' is from 'package:flutter/src/widgets/tap_and_drag_gestures.dart' ('/C:/Flutter/flutter/packages/flutter/lib/src/widgets/tap_and_drag_gestures.dart').
onDoubleTapDown: onDoubleTapDown,
^
: Error: The argument type 'void Function(DragStartDetails)' can't be assigned to the parameter type 'void Function(TapDragStartDetails)?'. - 'DragStartDetails' is from 'package:flutter/src/gestures/drag_details.dart' ('/C:/Flutter/flutter/packages/flutter/lib/src/gestures/drag_details.dart').
- 'TapDragStartDetails' is from 'package:flutter/src/widgets/tap_and_drag_gestures.dart' ('/C:/Flutter/flutter/packages/flutter/lib/src/widgets/tap_and_drag_gestures.dart').
onDragSelectionStart: onDragSelectionStart,
^
: Error: The argument type 'void Function(DragStartDetails, DragUpdateDetails)' can't be assigned to the parameter type 'void Function(TapDragUpdateDetails)?'. - 'DragStartDetails' is from 'package:flutter/src/gestures/drag_details.dart' ('/C:/Flutter/flutter/packages/flutter/lib/src/gestures/drag_details.dart').
- 'DragUpdateDetails' is from 'package:flutter/src/gestures/drag_details.dart' ('/C:/Flutter/flutter/packages/flutter/lib/src/gestures/drag_details.dart').
- 'TapDragUpdateDetails' is from 'package:flutter/src/widgets/tap_and_drag_gestures.dart' ('/C:/Flutter/flutter/packages/flutter/lib/src/widgets/tap_and_drag_gestures.dart').
onDragSelectionUpdate: onDragSelectionUpdate,
^
: Error: The argument type 'void Function(DragEndDetails)' can't be assigned to the parameter type 'void Function(TapDragEndDetails)?'. - 'DragEndDetails' is from 'package:flutter/src/gestures/drag_details.dart' ('/C:/Flutter/flutter/packages/flutter/lib/src/gestures/drag_details.dart').
- 'TapDragEndDetails' is from 'package:flutter/src/widgets/tap_and_drag_gestures.dart' ('/C:/Flutter/flutter/packages/flutter/lib/src/widgets/tap_and_drag_gestures.dart').
onDragSelectionEnd: onDragSelectionEnd,
^
FAILURE: Build failed with an exception.
-
Where:
Script 'C:\Flutter\flutter\packages\flutter_tools\gradle\flutter.gradle' line: 1201 -
What went wrong:
Execution failed for task ':app:compileFlutterBuildDebug'.
> Process 'command 'C:\Flutter\flutter\bin\flutter.bat'' finished with non-zero exit value 1 -
Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights. -
Get more help at https://help.gradle.org
BUILD FAILED in 1m 50s
E/AndroidRuntime(29997): FATAL EXCEPTION: ScreenDecorations
E/AndroidRuntime(29997): Process: com.android.systemui, PID: 29997
E/AndroidRuntime(29997): java.lang.NullPointerException: Parameter specified as non-null is null: method kotlin.jvm.internal.Intrinsics.checkNotNullParameter, parameter bottomLeft
E/AndroidRuntime(29997): at com.android.systemui.statusbar.events.PrivacyDotViewController.initialize(Unknown Source:22)
E/AndroidRuntime(29997): at com.android.systemui.ScreenDecorations.setupDecorations(ScreenDecorations.java:315)
E/AndroidRuntime(29997): at com.android.systemui.ScreenDecorations.startOnScreenDecorationsThread(ScreenDecorations.java:252)
E/AndroidRuntime(29997): at com.android.systemui.ScreenDecorations.$r8$lambda$bRx4s-frKyGv-SmpobluoualBbQ(Unknown Source:0)
E/AndroidRuntime(29997): at com.android.systemui.ScreenDecorations$$ExternalSyntheticLambda2.run(Unknown Source:2)
E/AndroidRuntime(29997): at android.os.Handler.handleCallback(Handler.java:938)
E/AndroidRuntime(29997): at android.os.Handler.dispatchMessage(Handler.java:99)
E/AndroidRuntime(29997): at android.os.Looper.loopOnce(Looper.java:201)
E/AndroidRuntime(29997): at android.os.Looper.loop(Looper.java:288)
E/AndroidRuntime(29997): at android.os.HandlerThread.run(HandlerThread.java:67)
Exception: Gradle task assembleDebug failed with exit code 1
Exited (sigterm)
I wanted to update my application so I just updated the packages along with flutter.After which when I run it, throws the above errors.
Here's my pubspec.yaml packages:
http: ^1.0.0
webfeed: 0.7.0
xml: ^5.4.1
cupertino_icons: 1.0.5
flutter_launcher_icons: ^0.11.0
shared_preferences: ^2.1.1
share: 2.0.4
launch_review: 3.0.1
url_launcher: ^6.1.11
fluttertoast: ^8.2.2
font_awesome_flutter: 10.4.0
webview_flutter: ^2.3.4
flutter_html: 2.2.1
percent_indicator: 4.2.3
page_indicator: ^0.4.1
admob_flutter: ^3.0.0
flutter_local_notifications: ^12.0.4
答案1
得分: 3
我在将Flutter升级到版本3.10.4后遇到了这个错误。
问题出在flutter_html包上。它依赖于flutter_math_fork 0.5.0,这个版本会引发Gesture_detector错误。一旦我用另一个HTML渲染包替换了flutter_html,错误就解决了。
英文:
I faced this error after upgrading Flutter to version 3.10.4.
The issue lies with the flutter_html package. It depends on the flutter_math_fork 0.5.0 which throws the Gesture_detector error. Once I replaced the flutter_html with a different HTML rendering package the error was resolved
答案2
得分: 1
- flutter clean
- flutter pub upgrade
- flutter pub outdated
- flutter pub upgrade --major-versions
- flutter pub get
then run it
英文:
Try these commands on your terminal :
- flutter clean
- fluter pub upgrade
- flutter pub outdated
- flutter pub upgrade --major-versions
- flutter pub get
then run it
答案3
得分: 0
我不知道为什么,在2/3次的“clean”和“get”之后,问题就解决了。
英文:
I don't know why, after 2/3 times of clean
and get
, it was solved for me
答案4
得分: 0
dependencies:
flutter_html: ^3.0.0-beta.2
英文:
I was facing the same issue updating flutter version. Flutter html package has now new version just add will solve the issue !
dependencies:
flutter_html: ^3.0.0-beta.2
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