#Package - Guide to Solve different kinds of Problems

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[SOLVED] Type ’UnmodifiableUint8ListView’ not found. final UnmodifiableUint8ListView bytes

[SOLVED] Type ’UnmodifiableUint8ListView’ not found. final UnmodifiableUint8ListView bytes

How to solve ʺType ’UnmodifiableUint8ListView’ not found. final UnmodifiableUint8ListView bytesʺ error in Flutter

[Solved] Android Gradle plugin supports only Kotlin Gradle plugin version 1.5.20 and higher.

[Solved] Android Gradle plugin supports only Kotlin Gradle plugin version 1.5.20 and higher.

In this example, we are going to show you how to solve the ʺThe Android Gradle plugin supports only Kotlin Gradle plugin version 1.5.20 and higher. The following dependencies do not satisfy the required versionʺ error in Flutter.

How to get Difference of Two Dates in Weeks, Months and Years in Flutter

How to get Difference of Two Dates in Weeks, Months and Years in Flutter

In this example, we are going to show you how to find the difference between two dates in weeks, months, and years in Flutter. In dart, currently, there is no option to find differences in weeks, months, and years, there are only days, hours, minutes, and second.

How to Add Z-Index Widget Order in Flutter

How to Add Z-Index Widget Order in Flutter

In this example, we are going to show you how to implement widget order like z-index on CSS in Flutter. Z-index is a very important factor to implement the order of widgets according to which widgets we want to show on top of one another.

[Solved] Packages have newer versions incompatible Error

[Solved] Packages have newer versions incompatible Error

In this post, we are going to show you how to solve ʺpackages have newer versions incompatible with dependency constraintsʺ error in Flutter. This error occurs when you have outdated packages added on pubspec.yaml file.

How to Change App Package Name with Terminal Command in Flutter

How to Change App Package Name with Terminal Command in Flutter

To change the app package name manually by editing each file in Flutter is a bit time-consuming, and may cause errors if there you do not update every file. In this example, we are going to show you how to change the package name at once with the terminal command in Flutter.

How to Use Flat Icons in Flutter App

How to Use Flat Icons in Flutter App

In this example, we are going to show you the way to use Flat Icons in Flutter App. Flat Icons are thin-weight icons that have very elegant looks.

How to Make Speed Dial Expandable Floating Action Menu in Flutter

How to Make Speed Dial Expandable Floating Action Menu in Flutter

In this example, we are going to show you the easiest way to make a speed dial expandable and collapsable menu on the Floating Action Button. Whenever user presses the FAB, the menu will expand or close according to its state.

How to show Toast Message in Flutter

How to show Toast Message in Flutter

Toast is the best way to show the message in Flutter because it gets dismissed automatically, doesn’t affect any other UI components, and looks app interactive. See the example below and learn to show the Toast message when a button is pressed or on any action.

How to list files/folder from internal or SD card storage in Flutter App

How to list files/folder from internal or SD card storage in Flutter App

In this example, we have shown to list all the files or folders from Internal or External (SD Card) storage. You can also add an extension filter to list files with specific path extension.

How to create animated liquid wave progress indicator in Flutter App

How to create animated liquid wave progress indicator in Flutter App

You will find lots of widgets to make your user interface beautiful in Flutter. In this example, we have used one of the packages which help to make animated liquid wave progress indicators very easily with little code.

How to make Country Picker and get Name, Code, Dial Code, Flag on Flutter App

How to make Country Picker and get Name, Code, Dial Code, Flag on Flutter App

When you are making a form in Flutter which has a filed to get Country name, it is better to make country select then input field. But to make a country select list is a bit lengthy, you need data of countries, flags, country codes, dial codes.