yxwandroid / flutter_plugin_qrcode Goto Github PK

java.lang.NullPointerException: Attempt to invoke interface method 'void io.flutter.plugin.common.MethodChannel$Result.success(java.lang.Object)' on a null object reference
E/AndroidRuntime(25340): at android.app.ActivityThread.deliverResults(ActivityThread.java:4349)
E/AndroidRuntime(25340): at android.app.ActivityThread.handleSendResult(ActivityThread.java:4392)
E/AndroidRuntime(25340): at android.app.ActivityThread.-wrap22(ActivityThread.java)
E/AndroidRuntime(25340): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1635)
E/AndroidRuntime(25340): at android.os.Handler.dispatchMessage(Handler.java:105)
E/AndroidRuntime(25340): at android.os.Looper.loop(Looper.java:156)
E/AndroidRuntime(25340): at android.app.ActivityThread.main(ActivityThread.java:6623)
E/AndroidRuntime(25340): at java.lang.reflect.Method.invoke(Native Method)
E/AndroidRuntime(25340): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:942)
E/AndroidRuntime(25340): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:832)
E/AndroidRuntime(25340): Caused by: java.lang.NullPointerException: Attempt to invoke interface method 'void io.flutter.plugin.common.MethodChannel$Result.success(java.lang.Object)' on a null object reference
E/AndroidRuntime(25340): at flutterplugin.accs.com.flutter_plugin_qrcode.FlutterPluginQrcodePlugin.onActivityResult(FlutterPluginQrcodePlugin.java:63)
E/AndroidRuntime(25340): at io.flutter.embedding.engine.FlutterEnginePluginRegistry$FlutterEngineActivityPluginBinding.onActivityResult(FlutterEnginePluginRegistry.java:634)
E/AndroidRuntime(25340): at io.flutter.embedding.engine.FlutterEnginePluginRegistry.onActivityResult(FlutterEnginePluginRegistry.java:367)
E/AndroidRuntime(25340): at io.flutter.embedding.android.FlutterActivityAndFragmentDelegate.onActivityResult(FlutterActivityAndFragmentDelegate.java:546)
E/AndroidRuntime(25340): at io.flutter.embedding.android.FlutterActivity.onActivityResult(FlutterActivity.java:594)
E/AndroidRuntime(25340): at android.app.Activity.dispatchActivityResult(Activity.java:7188)
E/AndroidRuntime(25340): at android.app.ActivityThread.deliverResults(ActivityThread.java:4345)
E/AndroidRuntime(25340): ... 9 more
I/Process (25340): Sending signal. PID: 25340 SIG: 9

method channel没通，估计是不是flutter版本问题 我之前升级flutter版本 自己的项目也会出现这样的问题 你看能不能适配一下
Flutter 1.22.4 • channel stable • https://github.com/flutter/flutter.git
Framework • revision 1aafb3a8b9 (4 weeks ago) • 2020-11-13 09:59:28 -0800
Engine • revision 2c956a31c0
Tools • Dart 2.10.4
AndroidStudio版本4.1.1

/Users/henry/.pub-cache/hosted/pub.flutter-io.cn/flutter_plugin_qrcode-2.0.0/ios/Classes/ACScanViewController.swift:206:14: error: 'bringSubview(toFront:)' has been renamed to 'bringSubviewToFront(_:)'
view.bringSubview(toFront: self.animalLine)
^~~~~~~~~~~~ ~~~~~~~~~
bringSubviewToFront
UIKit.UIView:17:15: note: 'bringSubview(toFront:)' was obsoleted in Swift 4.2
open func bringSubview(toFront view: UIView)
^
/Users/henry/.pub-cache/hosted/pub.flutter-io.cn/flutter_plugin_qrcode-2.0.0/ios/Classes/ACScanViewController.swift:231:61: error: 'commonModes' has been renamed to 'RunLoop.Mode.common'
RunLoop.main.add(self.timer!, forMode: RunLoop.Mode.commonModes)
^~~~~~~~~~~
RunLoop.Mode.common
Foundation.RunLoop.Mode:9:23: note: 'commonModes' was obsoleted in Swift 4.2
public static let commonModes: RunLoop.Mode
^
While building module 'Bugly' imported from

henry@HenrydeMacBook-Pro ios % flutter doctor -v
[✓] Flutter (Channel stable, 1.22.5, on Mac OS X 10.15.6 19G73
darwin-x64, locale zh-Hans-CN)
• Flutter version 1.22.5 at
/Users/henry/Documents/Flutter/sdk/flutter
• Framework revision 7891006299 (5 周前), 2020-12-10 11:54:40 -0800
• Engine revision ae90085a84
• Dart version 2.10.4
• Pub download mirror https://pub.flutter-io.cn
• Flutter download mirror https://storage.flutter-io.cn

[✓] Android toolchain - develop for Android devices (Android SDK
version 30.0.3)
• Android SDK at /Users/henry/Library/Android/sdk
• Platform android-30, build-tools 30.0.3
• Java binary at: /Applications/Android
Studio.app/Contents/jre/jdk/Contents/Home/bin/java
• Java version OpenJDK Runtime Environment (build
1.8.0_242-release-1644-b3-6222593)
• All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 12.3)
• Xcode at /Applications/Xcode.app/Contents/Developer
• Xcode 12.3, Build version 12C33
• CocoaPods version 1.10.0

[✓] Android Studio (version 4.0)
• Android Studio at /Applications/Android Studio.app/Contents
• Flutter plugin installed
• Dart plugin version 193.7547
• Java version OpenJDK Runtime Environment (build
1.8.0_242-release-1644-b3-6222593)

[!] VS Code (version 1.52.1)
• VS Code at /Applications/Visual Studio Code.app/Contents
✗ Flutter extension not installed; install from
https://marketplace.visualstudio.com/items?itemName=Dart-Code.flu
tter

[✓] Connected device (2 available)
• iPhone (mobile) • 00008020-001C346A0288002E
• ios • iOS 14.2
• iPhone 12 Pro Max (mobile) • 4ACC2862-3EEF-4410-9FA1-F32197D35DAC
• ios • com.apple.CoreSimulator.SimRuntime.iOS-14-3 (simulator)

! Doctor found issues in 1 category.

iOS打开扫描界面后 无法返回至上一页面 需要扫描之后才能返回

Xcode's output:
↳
/users/fuyixiazhang/documents/flutter/.pub-cache/hosted/pub.flutter-io.cn/fl
utter_plugin_qrcode-2.0.0/ios/Classes/ACScanViewController.swift:206:14:
error: 'bringSubview(toFront:)' has been renamed to
'bringSubviewToFront(:)'
view.bringSubview(toFront: self.animalLine)
^~~~~~~~~~~~ ~~~~~~~~~
bringSubviewToFront
UIKit.UIView:17:15: note: 'bringSubview(toFront:)' was obsoleted in Swift
4.2
open func bringSubview(toFront view: UIView)
^
/users/fuyixiazhang/documents/flutter/.pub-cache/hosted/pub.flutter-io.cn/fl
utter_plugin_qrcode-2.0.0/ios/Classes/ACScanViewController.swift:231:61:
error: 'commonModes' has been renamed to 'RunLoop.Mode.common'
RunLoop.main.add(self.timer!, forMode: RunLoop.Mode.commonModes)
^~~~~~~~~~~
RunLoop.Mode.com
mon
Foundation.RunLoop.Mode:9:23: note: 'commonModes' was obsoleted in Swift 4.2
public static let commonModes: RunLoop.Mode
^
/users/fuyixiazhang/documents/flutter/.pub-cache/hosted/pub.flutter-io.cn/fl
utter_plugin_qrcode-2.0.0/ios/Classes/ACScanViewController.swift:206:14:
error: 'bringSubview(toFront:)' has been renamed to
'bringSubviewToFront(:)'
view.bringSubview(toFront: self.animalLine)
^~~~~~~~~~~~ ~~~~~~~~~
bringSubviewToFront
UIKit.UIView:17:15: note: 'bringSubview(toFront:)' was obsoleted in Swift
4.2
open func bringSubview(toFront view: UIView)
^
/users/fuyixiazhang/documents/flutter/.pub-cache/hosted/pub.flutter-io.cn/fl
utter_plugin_qrcode-2.0.0/ios/Classes/ACScanViewController.swift:231:61:
error: 'commonModes' has been renamed to 'RunLoop.Mode.common'
RunLoop.main.add(self.timer!, forMode: RunLoop.Mode.commonModes)
^~~~~~~~~~~
RunLoop.Mode.com
mon
Foundation.RunLoop.Mode:9:23: note: 'commonModes' was obsoleted in Swift 4.2
public static let commonModes: RunLoop.Mode
^
note: Using new build system
note: Building targets in parallel
note: Planning build
note: Constructing build description

Encountered error while building for device.