Flutter - How can draw route on google map between markers.

Route on google map is the easiest way to reach somewhere. Just enter the address of your source and destination point. After that, you will see the right way to go there and you can control the route map.  Google maps highlight the suggested route in a bright blue color...

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Flutter - Collapsing Toolbar OR Sliver App Bar

If you are an Android application developer. Then you definitely know about Collapsing Toolbar. It is a wrapper for Toolbar which implements a collapsing app bar. Flutter team calling it Sliver App bar. It displays an image or background in the upper part of the screen,...

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Kotlin - Higher order functions

In Kotlin, functions can be represented as values by using lambdas or function references.  Regular functions receive only data parameters, whereas a function that receives another function as a parameter and returns a function as a result is called a Higher-order function. ...

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Flutter - Capture Image from camera or gallery and apply crop.

In modern application, if you implementing user profile feature. So, you should implement user profile pic and allow a user to set and change profile pic. A user can set a profile pic from his/her mobile gallery or capture image from camera.  Besides just...

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Flutter - GridView builder example.

In a mobile application, GridView is a view group that displays items in a two-dimensional scrolling grid (rows and columns).  Users can select any grid item by clicking on it. By default GridView scrollable, so we don’t need to use ScrollView or...

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