Change Icon Onpressed Flutter. (context) { return new scaffold( appbar: This attribute takes the value of an icon() which can store the icons.
Splashcolor — this is the primary color used for the button when it is in a pressed state. In the onpressed() function of floatingactionbutton, we shall write a logic to switch between the icons. I am using the icon button library in current tutorial, you can also use your own image widget or any widget at the place of app bar icon.
The first thing you can notice is the back icon button on app bar in sub page.
Now in our scafdfold(), there is a parameter named as drawer: Flutter iconbutton acts just like a button, but with an icon instead of an usual button. To execute a function when button is pressed, use onpressed() property of the button. In this example, you will learn how to change count using flutter flatbutton.
