dart-pub

问题 I am trying to utilize the Location package in Flutter, but when I try to display the Latitude and Longitude in my app I am getting an error stating "The getter 'latitude' was called on null." Is it possible that there's something wrong with the location services on my device? I am also prompted with a popup when I click on the screen stating "For a better experience, turn on device location, which uses Google's location service" but I already enabled permissions for location services in the

问题 I want to redirect to google maps app for navigation with some stops between source and destination from my flutter application. url_launcher package redirects to map with source and destination but I want with some stops. Is that possible? 回答1: If you want to navigate with directions you can just create a url with source and destination co-ordinates and other coordinates to add as stops. Steps: 1. Install url_launcher plugin write a code like below. _launchURL(String url) async { if (await

问题 I am exploring the cached_network_image Flutter package. https://pub.dev/documentation/cached_network_image I am on a MacBook Pro 16 2019, running macOS Catalina 10.15.7. Using Simulator iPhone 11 Pro - iOS 14. So apparently the package should cache the image. But I would actually like to see the cached image inside the iOS Simulator... Just to make sure that it actually works, and understand a little more about how it works. Of course I don't know if it's possible? I don't know if I can see

问题 I am exploring the cached_network_image Flutter package. https://pub.dev/documentation/cached_network_image I am on a MacBook Pro 16 2019, running macOS Catalina 10.15.7. Using Simulator iPhone 11 Pro - iOS 14. So apparently the package should cache the image. But I would actually like to see the cached image inside the iOS Simulator... Just to make sure that it actually works, and understand a little more about how it works. Of course I don't know if it's possible? I don't know if I can see

来源： https://stackoverflow.com/questions/38838625/regex-using-dart-lang

来源： https://stackoverflow.com/questions/38838625/regex-using-dart-lang

来源： https://stackoverflow.com/questions/38838625/regex-using-dart-lang

来源： https://stackoverflow.com/questions/52794266/pub-global-activate-command-home-pub-cache-bin-not-on-path

问题 Can i do these two things: Is there any library in dart for Sentiment Analysis? Can I use Python (for Sentiment Analysis) in dart? My main motive for these questions is that I'm working on an application in a flutter and I use sentiment analysis and I have no idea that how I do that. Can anyone please help me to solve this Problem.? Or is there any way that I can do text sentiment analysis in the flutter app? 回答1: You can create an api using Python then serve it your mobile app (FLUTTER)

问题 Can i do these two things: Is there any library in dart for Sentiment Analysis? Can I use Python (for Sentiment Analysis) in dart? My main motive for these questions is that I'm working on an application in a flutter and I use sentiment analysis and I have no idea that how I do that. Can anyone please help me to solve this Problem.? Or is there any way that I can do text sentiment analysis in the flutter app? 回答1: You can create an api using Python then serve it your mobile app (FLUTTER)