Flutter

Flutter Firebase signInWithEmailAndPassword cryptography

由 删除回忆录丶 提交于 2021-02-11 15:41:18
问题 I'm using Flutter + firebase auth to authenticate my users with email and password using this syntax: void signIn({@required String email,@required String pass}) FirebaseAuth.instance.signInWithEmailAndPassword(email: email, password: pass)... The username and password are Strings, plain text My question is, do I have to worry about password security? does the password string goes to the network encrypted? 回答1: All communication between the Firebase Authentication client and the backend

How to import and make use of a package in flutter?

由 蓝咒 提交于 2021-02-11 15:40:40
问题 I will like to know how to import a new package from third party in flutter and call it in my code? 回答1: You can find a lot of packages on Pub.dev. To import it just open any package and navigate to the Installing Tab. Then you just need to copy this sentence to your pubspec.yaml file. Paste line under dependencies in pubspec.yaml . Note that spaces is very important so make it start just under flutter: when pasting. Save changes in pubspec.yaml and it will install the packages automatically.

How to use python code with Flutter application?

由 北城以北 提交于 2021-02-11 15:33:18
问题 I wanna to make a chatbot app with fluter, so i will use flutter only to create the user interface, and i wanna to interact my flutter app with python, so i will receive the question from flutter app and i will send it to python function, and this function should return the answer , and in flutter i will display it to the screen. Hint: 1- I made the UI with flutter. 2- I created python function "It uses Neural Network". 3- I wanna to use python as a function only, i will pass the questions to

Flutter Dart: HTTP read does not retrieve full html from given URL

由 有些话、适合烂在心里 提交于 2021-02-11 15:33:06
问题 I am currently using http.read() in order to retrieve the raw html of a given URL. I use Safari's "Inspect Element" feature to compare the result. I used this code and Google's webpage to test: http.read("https://www.google.com/?client=safari").then((html) { print(html); }); The result printed was: <!doctype html><html itemscope="" itemtype="http://schema.org/WebPage" lang="en"><head><meta content="Search the world's information, including webpages, images, videos and more. Google has many

How to use python code with Flutter application?

由 自作多情 提交于 2021-02-11 15:32:14
问题 I wanna to make a chatbot app with fluter, so i will use flutter only to create the user interface, and i wanna to interact my flutter app with python, so i will receive the question from flutter app and i will send it to python function, and this function should return the answer , and in flutter i will display it to the screen. Hint: 1- I made the UI with flutter. 2- I created python function "It uses Neural Network". 3- I wanna to use python as a function only, i will pass the questions to

Animating position across row cells in Flutter

由 我的未来我决定 提交于 2021-02-11 15:31:35
问题 I have a Row Widget that holds a child Widget in one of its cells (the others hold a Spacer() ). Depending on the state, the cell which holds the child changes, resulting in a position change of the child Widget. I want to animate this motion to make it smooth. Is there a way of doing so with the standard animation Widgets (something like AnimatedPositioned , which won't work in this case)? 回答1: You could use AnimatedPositioned if you insert a Stack inside your row. Otherwise, you can use an

Animating position across row cells in Flutter

由 巧了我就是萌 提交于 2021-02-11 15:31:26
问题 I have a Row Widget that holds a child Widget in one of its cells (the others hold a Spacer() ). Depending on the state, the cell which holds the child changes, resulting in a position change of the child Widget. I want to animate this motion to make it smooth. Is there a way of doing so with the standard animation Widgets (something like AnimatedPositioned , which won't work in this case)? 回答1: You could use AnimatedPositioned if you insert a Stack inside your row. Otherwise, you can use an

Flutter: Different ListView ItemBuilder layouts based on Network image dimensions

由 岁酱吖の 提交于 2021-02-11 15:25:19
问题 I am trying to build a news reader app using Flutter. However, the challenge I am facing is that I need to show different layouts based on the dimensions of the network image. I researched around this and couldn't find a solution. Please help. 回答1: I somehow made a workaround not using the listview and using the singlechildscrollview in horizontal direction and list of row widgets. Just check out the example that I have made : I have taken the JSON data locally using the list of network

Want to pass the total price in the bottom navigation bar in flutter

由 試著忘記壹切 提交于 2021-02-11 15:21:17
问题 How can i show the total amount in the bottom navigation bar... The app uses firebase backend... I have a filed in my database name total price of each item... Now I want to fetch the total price of each item and then add it and display in the bottom navigation bar.. I have attach my firebase backend screen shot.. what i need is to get all the value of the field 'total' add it up and show it in the bottom bar below the Total which is hardcoded as 999 currently section... It would be helpful

Flutter: How to access array data inside a Map?

由 时光总嘲笑我的痴心妄想 提交于 2021-02-11 15:17:47
问题 I am developing a Flutter app and I am getting a JSON data like below {chat_mode: supplier, timestamp: 1605852885271, last_message: Test, members: [K9ioYyiEUQVVNjx0owwsABCD, K9ioYyiEUQVVNjx0owwsaXYZ]} I need to access each individual element under members and this is what I tried. Map<dynamic, dynamic> map = snapshot.value; print(map["members"]); The above allows me to access the entire array, not each record. But i can't access the individual element by using something like map["members"][0]
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