//Check the device type GetPlatform.isMobile GetPlatform.isDesktop //All platforms are supported independently in web! //You can tell if you are running inside a browser //on Windows, iOS, OSX, Android, etc. GetPlatform.isWeb // Equivalent to : MediaQuery.of(context).size.height, // b...
控件类型从StatelessWidget到StatefulWidget的转换,因为Flutter在执行热刷新时会保留程序原来的state,而某个控件从stageless→stateful后会导致Flutter重新创建控件时报错“myWidget is not a subtype of StatelessWidget”,而从stateful→stateless会报错“type ‘myWidget’ is not a subtype of type ‘StatefulWidget’ of ...
int pointerIndex,int pointerChange,int pointerData,Matrix transformMatrix,ByteBuffer packet long motionEventId=0;if(trackMotionEvents){MotionEventTracker.MotionEventId trackedEvent=motionEventTracker.track(event);motionEventId=trackedEvent.getId();}int pointerKind=getPointerDeviceTypeForToolType(event.getToolTyp...
[☠] Connected device (the doctor check crashed) X Due to an error, the doctor check did not complete. If the error message below is not helpful, please let us know about this issue at https://github.com/flutter/flutter/issues. X Exception: Unable to run "adb", check your Android ...
Device-oriented Open Services Advantages Data Type Public Data Types Customized Data Types Activity Type Constants Data Type Quality Control Data Openness of Huawei Wear and Huawei Health Scopes Version Change History Development Guide Preparations Preparing the Development Environment Conf...
platformType":"windows","ephemeral":false,"emulatorId":null,"sdk":"Microsoft Windows [versÆo 10.0.22631.2715]","capabilities":{"hotReload":true,"hotRestart":true,"screenshot":false,"fastStart":false,"flutterExit":true,"hardwareRendering":true,"startPaused":true}}}] [{"event":"device....
// 检查是否为空字符串 (Check for an empty string). var fullName = ''; assert(fullName.isEmpty); // 检查是否小于等于零。 var hitPoints = 0; assert(hitPoints <= 0); // 检查是否为 null。 var unicorn; assert(unicorn == null); // 检查是否为 NaN。 var iMeantToDoThis = 0 / 0...
执行ace check命令可以检查ArkUI-X应用开发环境是否完备。 Check summary (to see all details, run ace check -v) [√] ArkUI-X (ArkUI-X SDK version 1.0.0.0) [√] OpenHarmony toolchains - develop for OpenHarmony devices (OpenHarmony SDK version 4.0.10.13) ...
device info,获取设备型号等信息。 image_picker,从设备中选取或者拍摄照片。 package_info,获取App安装包的版本等信息。 path_provider,获取常用文件路径。 quick_actions,App图标添加快捷方式,iOS的eponymous concept和Android的App Shortcuts。 sensors,访问设备的加速度和陀螺仪传感器。
Pre-release Check Releasing Your App Setting Promotional Prices SDK Data Security FAQs Technical Support Lite SDK Background Version Change History Customization Guide API Reference Serverless Auth Service About This Document Service Introduction Use Cases Preparations in AppGalle...