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How to Disable or Override Back Button in Flutter?

One of the significant concerns of developers is how to disable or override the back button in Flutter. You can utilize several elements to provide better navigation to your app’s users. These include buttons, text fields, cards, checkboxes, dropdowns, etc.  It is essential to provide users with full control over your app. Similarly, a back button has a vital role in your app’s navigation. Sometimes, if a user taps the back button within your app, it reverts directly to the mobile phone’s menu screen, which negatively impacts user experience. Your app should ask for permission to confirm the exit. Because users may lose their progress within the app if it closes on an accidental tap. Additionally, if users input some information or data in the app, they may lose it if the back button has mistakenly been pressed. Instead, we should show a dialogue box asking the user to confirm the exit so that the information can be stored properly.  Let us first know what the WillPopScope widget is, and we will move toward knowing how to disable or override the back button in Flutter. What is WillPopScope Widget in Flutter? The WillPopScope is such a useful widget that comes with the Flutter framework. It gives you full control over the back button, allowing you to move between the screens. You can use this widget to either disable or override the back button in Flutter. Moreover, you can prevent certain unwanted conditions that were discussed at the start. Leveraging the WillPopScope widget ultimately enhances the user experience. How to disable back button in Flutter? To disable the back button in Flutter, we need to use the WillPopScope widget.  Follow these steps to disable back button in Flutter. Step#01: Wrap the scaffold or widget tree in the WillPopScope widget.  Step#02: Now add the onWillPop parameter inside the WillPopScope widget and create a function to handle its call back.  Step#03: Return false inside the callback. The back button will be disabled. You can also display a text addressing the back button is disabled, just to have a more transparent user experience. Here is the example code to disable the back button in Flutter. Code Example Result Now that you learned how to disable the back button in Flutter, you may need to show a dialogue box asking for confirmation whenever a user taps the back button in Flutter. This could be done using AlertDialog, but interestingly, the rest of the steps remain the same. How to Override Back Button in Flutter? (Display Custom Dialog Box Before Exiting) To display a custom dialogue box asking the user to confirm its exit, we need to override the back button in Flutter. We use the same WillPopScope widget for this purpose. And the AlertDialog class will display the alert box on the screen as the user taps on the back button. When the user taps the back button, it will show a dialogue box asking for confirmation to exit (Yes/No). If the user presses ‘no’, the dialogue box will disappear, and the user will remain in the app. Whereas, if the user presses ‘yes’, the app will be closed.  Related Post – dropdown list in flutter Here is the example code for you to override the back button in Flutter. Code Example: Result Conclusion You can enhance your app’s user experience by adding certain features and navigation components. As it is one of the major success factors, you should focus on enhancing user experience in every way possible. All you need to do is understand the end-user analyzing its behavior and needs. Your app will likely succeed in the app store if you keep the user first. Because it’s all about how much your app benefits the users.  Lastly, it’s a wrap to this quick guide on how to disable or override the back button in Flutter. We hope that you would have learnt much out of this. Still, if you have any queries or suggestions, feel free to contact us. We would love to assist you in any Flutter app development projects that you may have. You can also hire flutter developers for your Project See you in the next blog!

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How to Change Text Color in Flutter App?

There are certain times in the Flutter app development process when you need to change the color of text. There are a number of reasons why this may be the case. It could be because the client has asked you for the changes or you may want to change it on your own. Whatever the case is, you’ll no longer have to look further to change the color of the text in Flutter after going through this guide. By the end of this blog, you will learn how you can change the text color in Flutter using different methods. So be with us so you don’t miss out on any point.  Let us first get to know what is a flutter text widget. What is Flutter Text Widget? The Flutter text widget is used to display strings of text that we add to our code. You can display the text in different colors, styles, and sizes. The text widget gives you full control over how you want to display text within your app. Steps to Change the Color of Text in Flutter In Flutter, changing the text color isn’t that difficult. You can simply change it by adding the TextStyle property and defining the colors, opacity, font size, etc. Let’s move forward with knowing the steps to change the color of the text in Flutter. To change the text color, you must add style to the text widget. Remember that you cannot call the TextStyle widget inside the string. So separate it with a comma and then add the TextStyle widget. Step #01. Head over to the position where you have added the Text widget to display the text.  Step #02. Add the style parameter and assign the TextStyle property next to it.  Step 03. Set a color inside the TextStyle property this way; style: TextStyle(color: Colors.red)). Example: Results: As you can see in the screenshot above, the default text color (black) of “Hello World!” has been changed to red. Related Post – flutter font size based on screen size Different Ways to Change Text Color in Flutter There are different ways in which you can change the color of the text in Flutter apps. Let us discuss them with the sample code and respective results as well. Using the color class is the most common way to change text color in Flutter. As the above-mentioned method is to change the text color using color class, we will discuss some other ways to change the color of the text. 1. Color.formRGBO The color.formRGBO constructor in Flutter creates a combination of colors within red, green, and blue and sets an opacity. Code Example: Result: 2. Color.formARGB In the color.fomARGB method, Dart creates color from the four ARGB colors. These are alpha, red, green, and blue. As you set the desired value for each color, Dart creates a respective text color. Code Example: Results: 3. Using Hexadecimal Code String Using the hexadecimal code string is another way to add colored text in Flutter. It represents different colors as #RRGGBB which are red, green, and blue. Below is the example for adding the text color using hexadecimal code. Code Example: Results: 4. Adjusting Text Color Opacity Whenever you are to change the color of text, you might also need to change its opacity. For that, you can add opacity with each color class in case you’re using a color class for adding one color. Here is an example. Code Example: Results: Conclusion So that’s a wrap to this quick guide on how to change the color of the text in any Flutter app. If you’re looking to implement this feature in your app but don’t have the necessary skills or resources, we recommend you to hire Flutter developers who can help you with the task. We hope that you get to learn how you can change the text color. Moreover, you won’t be needing to remember the code for all the scenarios because we have provided you with them all 😉 Enjoy the royalty-free code and don’t hesitate to reach out to Flutter experts for further assistance. See you in the next blog!

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Enhancing User Experience with Animated Flutter Drawer

Developers are using a wide range of modern animations in their mobile applications to improve not only UI but also the user experience. Having motion and feedback animations can ultimately result in better interactivity. You can use an animated Flutter drawer to improve the navigation from one page to another in an aesthetically improved manner. By clicking the hamburger menu in the app bar or by swiping, the navigation drawer will open. Further, the Material Panel in the Flutter framework allows Flutter developers to add customizable motion effects that will show navigation links in an app. This article will help you build an amazing flutter project that you can add to your resume. What is Drawer Widget in Flutter? With the help Drawer widget, users can access different pages and functions within a mobile app. The navigation drawer is usually opened by clicking the three horizontal lines or hamburger menu at the top of the scaffold, which provides horizontal movement. A typical opening is from the left side of the screen, but it can be changed to the right. To use the drawer widget, you need to import this package: “package: flutter/material.dart.” It has a “scaffold.drawer” property that comes with a scrollable ListView form. Three components make up the navigating Drawer: the header, the body, and the footer. As established before, the navigator lists the Drawer’s child items that, upon clicking, will take to different routes within the app. By default, when the navigation drawer opens, it takes up more than 50% of the screen. You can change the navigation drawer width to occupy a predefined space. Drawers present an opportunity to navigate different destinations instantly. This feature is especially helpful for complex apps with many screens, making it easier for the users to switch screens. Moreover, the implementation of the Drawers widget is simple and easy. Here is how you can use the Flutter Drawers for your app: Create a Flutter Project You can create your project by opening the terminal and navigating to the desired location. The project will be created with the “flutter create project_name” command. Related Post –  Inkwell Flutter Return a Scaffold Widget Within the MyApp Class of your stateful/stateless widget returns the Scaffold widget. It is essential for providing your Flutter app’s basic visual layout structure. Related Post – Flutter Card Widget Add Drawer within Scaffold In this step, the Drawer is assigned ListView as its child. Additionally, it is possible to add a container and then add ListView as its child. All the items you wish to be in the navigation menu will be displayed here. Further, you need to include the DrawerHeader to create a material design header. Within the DrawerHeader insert the Text widget to add the text. For each page add the ListTitle widget with an icon and title. Insert a Closing Functionality Finally, the closing functionality on the Drawer is implemented by the Navigator. You can also do it by changing Navigator State. To open the Drawer from the different button, you can add this function: Implementation Parameter Name Description Data type homePageContent Present data on Home Page widget menuPageContent Show items on the Menu Page after the opening of the Drawer widget shadowColor It is behind the HomePage and is animated with it. color backgroundGradient It shows the background colors of the Drawer gradient openIcon The icon that opens the Drawer widget closeIcon An icon is displayed for closing the Drawer widget homePageYValue Home Page Widget’s Y-Coordinate Value to be translated in animation. double homePageXValue In animation, this value will represent the X-Coordinate Value for the Home Page Widget. double Usage Source: https://pub.dev/packages/animated_drawer Conclusion Usability is taken into consideration when developing apps. In addition to amazing features, mobile apps should also be user-friendly so that anyone can benefit from them. Flutter has different widgets that are specifically designed for better UX. Among these, the Flutter drawer makes it easy for users to navigate between different pages. The purpose of this article was to provide comprehensive information about this widget and how to use it in future flutter projects. Get in touch with us if you’re in need to hire flutter developer from a professional flutter development company.

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How to Show Conditional Widgets in Flutter?

In Flutter app development, we need to display and utilize the app’s content or data under different conditions. Any content, data, text, or simply the value is displayed in a Flutter app in the form of widgets. Because a Flutter app is all about widgets. So we need to show conditional widgets in Flutter using different methods. This blog will cover each aspect of showing conditional widgets in Flutter app development. Learn how to effectively show widgets in any Flutter app based on different conditions. Overview Traditional conditions are much more helpful when it comes to gesture widgets. You can use the traditional conditions to display widgets easily. With the help of ‘if’ or ‘else’ condition, you can call the values or widgets to be displayed.  Here is an example: But the problem is, we cannot use the traditional conditions within the widget tree. This is because we cannot use brackets {} inside the widget tree due to obvious reasons. So we need to use ternary operators to use conditions inside the widget tree. It is the best way to show conditional widgets in Flutter. Here are the different ways in which you can show widgets conditionally inside the widget tree. Ternary Conditional Operator in Flutter The ternary conditional operator (?) in Flutter is quite a useful tool that helps you show flutter widgets according to your desired conditions. It operates on the basis of two operands. One is the IF operand and the other is ELSE.  So, in case the IF operand is true it will display the value it has declared. And if the IF operand condition is false, the operator will display the value of the ‘else’ operand.  Here is the sample code to use the ternary conditional operator inside the widget tree. Now as you can see, we didn’t use {} anywhere in between the build context or the widget tree.  Interestingly, the if/else statement here works the same way it does in traditional conditions. The only difference is that we use it inside the widget tree without adding curly brackets. Showing Multiple Widgets Using List Append As you have seen the two ways to call a conditional widget, these method can only single widgets. Most of the time we need to call multiple widgets inside a widget tree.  So what if we need to call multiple conditional widgets? Here is the way to do it.  You can simply use the list append method and call multiple widgets inside the widget tree. So what goes here is if the IF condition is true, the multiple widgets specified in it will be displayed. In the code above, we have defined ‘Rashid’ and ‘Haroon’ to be called if the IF condition is true.  You can call as many widgets as you can. And same goes for the ELSE condition. You can add multiple widgets simultaneously. It’s not over yet. There is another way to call widgets with multiple conditions. It is by creating a function outside the widget tree and then calling it inside the widget tree. How to do it? Here it is.  Creating a Function to Show Conditional Widgets One of the ways to show conditional widgets in Flutter is creating a function and then calling it inside the widget tree. Here is the example of using functions to show conditional widgets in Flutter. As you can see, we first created a widget outside the widget tree and then called function “w()” inside the widget tree. So the if and else condition works here the same. If the IF condition is true that is ‘name==Bashir, the function will display text “I am Bashir”. Otherwise “I am not Bashir” will be displayed as it is defined in the ELSE statement. Moreover, you can also create any additional task alongside each condition. Conclusion We hope that you get a clear understanding of how we can show conditional widgets in Flutter. The 4 discussed ways are the only effective and common ways in which we can show widgets according to our desired condition. If you are looking to develop a Flutter app and need professional assistance, don’t hesitate to hire Flutter developers who can help you implement these techniques and create a top-notch app. After all, if you still have any confusion or suggestions, feel free to reach out to us or comment below. We would love to hear from you. Thank you for standing by. Cheers!

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How to Hire Developers: Top 6 Flutter Skills

Since Flutter was launched in 2018, it has been one of the most popular cross-platform app development frameworks. It is essential to look for a specific set of skills on a junior developer’s resume if you want to hire Flutter developers in this highly competitive market. Flutter is preferred over other frameworks because it saves money, time, and energy. You don’t have to build mobile apps separately for iOS, web, and Android devices. It is possible to develop apps that run on multiple platforms using Flutter. A flutter engineer must have a basic understanding of programming languages that are commonly used in mobile app development. In addition, familiarity with SQLite, Git, and software development methodologies is desirable. Read on to learn more to know more about these key skills. Looking To Hire Flutter Developers? The Top 6 Must-Have Skills To Pay Attention To Here are some of the skills that are enough to get you going in the Flutter market: Expert in Native Programming Languages Flutter app development requires an understanding of programming fundamentals. You need to know the concepts like inheritance, polymorphism, object-oriented programming, arrays, and more. Additionally, you should know how to program in C, C#, Java, Kotlin, Swift, and Lua for both Android and iOS applications. By understanding these programming languages, Flutter developers can gain a deeper understanding of how the platform works and how they can use it. In most cases, IT companies hire developers with experience in Android or iOS development. Good Knowledge of Dart Dart is a client-side programming language developed by Google and it is used to write code in Flutter. It is an object-based programming language and professional programmers often compare it to Java and C. It is a multidimensional programming language suitable for the web, servers, desktops, mobiles, and games. Given its nature, Dart is ideal for cross-platform compatibility. Most Flutter interview questions for senior developers will have some topics related to Dart. Having a practical knowledge of this programing language will increase the likelihood of hiring. Familiarity with SQLite Most mobile app developers have experience with databases. Among these, SQLite is the most famous database framework for storing and loading data. In Flutter, you will get the SQLite plugin which is pretty efficient and perform multiple tasks. SQLite proficiency is a requirement for most Flutter developers. A Working Understanding of Git One of the most important tools used in software development is Git. You will use Git whether you work on web development or mobile app development. GitHub is basically a version control tool. It also serves as a community for developers to interact and share code. Git is also available for Flutter with the same functionality Waterfall and Agile Methodologies Expertise Knowing different work methodologies can help boost the development process. Flutter uses many methodologies, such as Agile and Waterfall. The Agile Manifesto has 12 principles that govern a set of frameworks and practices. Agile allows Flutter developers to improve the development process and critically analyze it. It ensures all app development processes comply with valid rules and are subject to strict quality assurance checks. Waterfall methodology is a step-by-step development process that seamlessly transitions from one stage to another. The Flutter workflow largely depends on these methodologies and knowing them can help you get hired. Experience with Flutter Developer Tools In addition to the above-mentioned skills, the flutter developer must be acquainted with a specific set of developer tools that can accelerate workflow. These developer tools include: Version Control Tools App developers make several changes and keeping track of them is important to collaborate more effectively and enhance productivity. For this purpose, they use tools like Git and GitHub. It is essential that Flutter devs know how to set up a GitHub account and are comfortable with various Git commands. They can set up repositories and are able to share them with the public. Integrated Development Environment (IDE) IDEs are important to write code and manage projects efficiently. Visual Studio Code, Android Studio, and IntelliJ IDEA are some common IDEs that support Flutter. VS Code and Android Studio are the most commonly used development tools for Flutter. UI and Design Tools It is important to use these tools when visualizing and conceptualizing ideas. Design is an integral part of app development. These tools simplify the development of software. UI tools are used to design an interface that is simple, engaging, and user-friendly. These interfaces aim to satisfy the target audience effectively. Here are some of the popular design tools that Flutter developers should know: Flutter Engineer Soft Skills The importance of soft skills cannot be overstated. Developers who are creative, problem-solvers, team players, and have good communication skills are highly valued. Here are some common soft skills that should be prioritized: Communication Skills The ability to communicate is essential when developers work together. New ideas and solutions are usually generated during the development process, which should be communicated effectively to get the best results. Teamwork Flutter developers work in teams on multiple projects. Each team has members with different roles: designers, quality assurance, developers, and project managers. Teams thrive when each member of the team plays a role and works together in a coordinated manner. Problem-solving Every software project will encounter problems during development. A good developer must be able to solve problems objectively. Every developer should be able to think outside the box and come up with workable solutions instantly. They can easily identify and fix bugs. Creativity In order to come up with new solutions, developers need to take a different approach. It is crucial for a Flutter developer to be creative in order to stand out from their competitors. In order to stay relevant, you need to keep up with the latest mobile app development trends that are creative, unique, and fresh. Flutter Developers Job Description Building Android and iOS Apps The primary responsibility of a Flutter developer is to build mobile apps using the Flutter platform. In order to develop a cross-platform app

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How To Convince Your Boss To Move To Flutter?

Convince your boss to say “yes” to your great idea is a tricky one but not a complicated thing to perform. Your boss may run to you to adopt the same strategy they’re using from the times, and it’s beneficial for their business too. But if you give your statement in a way that upholds the positivity of their business, there are more chances to adopt new things. FlutterDesk is amazing, a revolution in mobile development. And revolutionized things are better for any business to grow. In this blog, we will learn about the challenges faced to do so, why your boss is still hesitant to make the switch and thebenefits of learning flutter app development. So let’s get started! Workplace Challenges Every workplace has different challenges to face when switching to something new. People make lots of mistakes in their way, but the boss and senior developers provide mentorship to their learning way. The senior developers or boss training are something worthwhile. This expertise and leadership are critical to delivering high-quality software on time. And their mind to adopt any new technology is as critical as having any hope of using new technology in the workplace.  You might face the same challenges to convince your boss if you’re landing on this blog. Now you’re managing things with your boss to show the real value of flutter web app development while making some notes for developing an app in it. I enjoy working in Flutter a lot and share my interest with my other developers. You make sounds when the language/framework you’re using at work doesn’t support hot-reloading or won’t let you type into the IDE while the app is running. Your excitement is admirable and perhaps even contagious, but it could work against you when discussing the possibility of using Flutter at work. To convince your boss, here’re something we can do for you.  5 Ways To Convince Your Boss To Agree To Your Idea Senior developers or bosses are always ready to listen to new innovative ideas that bring positivity to the workplace and grow the business. They take an interest when you come up to them with new ideas to learn and use new technology and language outside you are using at the workplace. There may be a chance that your negotiation with your boss can’t reach a specific conclusion. In each section, we will examine why your boss is always reluctant to use Flutter.  1- Flutter & Dart are quite new Dart is quite a new programming language, and most developers are unaware of it. Dart is not much popular until the arrival of Flutter, a framework. With the help of Flutter, Dart language makes their ways to upstand its roots in the development market. Do you have any idea while trying to convince your boss if he has ever heard about Dart language or flutter framework? The possibilities are less, but if you have clear flourishing thoughts about it in the development industry, make an excellent presentation and clarify business profit in it. Then, your boss can say yes to your genius idea.  Related Post – Using Dart Enum in Flutter 2- Compare Dart language with other languages Dart is a comparatively new tool in the developing industry and contains great support from google and various other popular features compared with Java Script. Although both are used as cross-platform, Dart is only used for developing the front end of cross-platform mobile applications. On the other side, Java is used for server-side cross-applications with back-end development. Since the arrival of Flutter in google, I/O dart has got attention from mobile developers as an alternative to React Native. Dart syntax is similar to JS, but even experienced developers get confused while getting a solution to any problem; that’s why they prefer JS over Dart. But DartDart saves developers time and cost as compared to JS or other languages.  3- Convince your boss it’s worth the time Some bosses feel that switching to another programing language takes too much time, but the reality is true too. It takes time, but it contains fluency, short time, and big achievement. Thinking about how much time it would take, a few hours a day can be a great bonus for your business to grow. Although you need experienced Dart developers in your learning journey, you will get much more. Flutter and Dart are comparatively new, but most popular organizations use them and save time due to cross-platform and single codebase output. Most organizations have happy faces and minds while adopting Flutter at their workplace.  4- Tell the benefits of it your boss Flutter and DartDart contain several different benefits over their competitors. One of the best benefits is that it has one codebase for all platforms, which saves developers time and cost. It contains widgets with the best UI styles. It contains rich graphics libraries, which means it redraws the UI every time it changes. The graphics libraries are fast and mature to run. The other great feature of using Flutter has a “hot-reload” option. It means there’s no need to reload the app when you perform every single activity in it. It makes Flutter app development services much easier and quicker. Dart is another best programing language after JavaScript. Dart is easy to understand and enforces OOP (object-oriented programming). The compilers of DartDart are quick and reliable. It contains clean and typeface syntax, classes, and objects. It contains a strong developer community like Google itself.  5- Show the Big Picture Switching to another programming language like Flutter immediately benefits the organization and increases its competitiveness in the international market over the long term. It demonstrates a commitment to your present and potential customers that your workers and management are prepared to invest their time in the company’s training. A company’s network will be much more extensive if its staff are proficient in learning, providing it with a better understanding of global events and enabling it to adjust its operations to suit the needs of

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How to Develop an App like Airbnb – A Detailed Guide

User Verification By implementing the feature of user verification, you will be able to create a trusted and secure travel experience for both the hosts and the guests. When a user signs up and registers for your application, immediately verify their online and physical presence. Ask them to provide you with images of their national ID, driver’s license, passport, and a scanned headshot. You can later match the physical and online documents.

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Flutter App Localization – A Quick Guide to Internationalization

Making your app available for multiple locales is important. And for that, you need to localize your app. It will help you scale your audience to the maximum because a larger reach drives more traffic and leads, ultimately. Let’s get to know how to localize an app step-by-step. 1. Adding Dependencies In the very first step of the Flutter app localization, you need to add the dependencies into the “pubspec.yaml” file. You’ll need to add ‘flutter_localizations’ and ‘intl’ packages into your Flutter project. Go to the pubspec.yaml file from your Flutter app and add the following code: 2. Creating the l10n.yaml file After adding the dependencies, now you have to create the “l10.n.yaml” file. This file contains all the localization classes that you generate using any localization generator or do it manually. Use the code as: Here, the ‘arb-dir’ defines the directory where the input files can be found. This directory has the message catalogs in the “.arb” format. Moreover, there is a ‘template-arb-file’ that specifies all the messages that your application can support. And lastly, there is the ‘output-localization-file’ that defines the main dart class file that your application will import. 3. Creating the template ARB or lib/l10n/app_en.arb file After defining the path of the ARB files in l10n.yaml file you need to create a template .arb file. This template is specific for a particular locale. You’ll need to create the template .arb files for each language in case your app supports multiple languages. Here, we will go with the English language first. The name or the key of each message that you represent here will become the name of the Dart method. The application will use that message or the Dart method to show the localized value of its. In short, a message name like “helloWord” should have a valid value present in the .arb file. 4. Integration of Localization Classes Now that we have created the template .arb file, it’s time to integrate these localization classes with your Flutter app. Use the following code to automatically integrate the localization classes. Overriding Localization Localizations.override is a factory constructor for localization in Flutter that allows you to localize or translate a particular screen or a section of your app in a different language than the language/locale that your device is already configured in. Let’s give you an example so you can have a clear idea of how overriding works. As you hot reload the app, you will notice that the syntax AppLocalizations.of(context).helloWorld will return the strings in the Spanish locale while it shouldn’t have. This is because of using the localizations.override constructor. What Now? You must not underestimate the potential of making your app available for multiple locales. App localization can help scale your online presence to the next level. The reason behind this is that localization adds an extra value to your app that more people can leverage. App localization is not limited to the language only but also the customs, history, taste, and traits as well. If you’re looking for a trusted and reputable Flutter app development company to turn your business ideas into real-world mobile, web, or desktop apps then FlutterDesk is the perfect place for that. Or if you’re facing any issues in any of your tech-related projects, just reach out to us and our team will help you solve them. We at FlutterDesk strive to help Flutter developers in every way possible.

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