Flutter widget

There are two types of widget
  • Single child widget - can hold only one child widget
  • multi-child widget - can hold multiple child widgets 

STATELESS widget is used for displaying STATIC Content or design once Data/UI is rendered, we cannot modify Data.

STATEFUL widget is used for displaying DYNAMIC content or Design
The stateful widget will re-render UI based on an event(Variable update, values changed , network request)


Example for Flutter widget





  • Text() - used for displaying text
  • Image.network() -  used for displaying image
  • Drawer() - used for displaying side menu
  • Button - 
    TextButton() 
    EvevetedButton()
    FloatingButton()
    OutlineButton() 

Comments

Post a Comment

Popular posts from this blog

Sri Lankan IT industry & companies

Image
The Sri Lankan IT industry has emerged as a significant player in the global market, specializing in business process outsourcing (BPO) and serving as an offshore development center for numerous Fortune 500 companies from various regions including North America, Europe, and Asia. The industry is known for its Skilled workforce: Sri Lanka boasts a large pool of highly skilled and qualified IT professionals, many of whom are proficient in various programming languages and technologies. Cost-effectiveness: Compared to other outsourcing destinations, Sri Lanka offers competitive rates for IT services, making it an attractive option for businesses seeking to reduce costs. Strong government support: The Sri Lankan government actively supports the development of the IT industry, providing various incentives and infrastructure improvements to attract foreign investment. Some of the well-known global IT companies with a presence in Sri Lanka include: HSBC IFS Intel Motorola WNS RR Donnelley Vi...
Read more

Find Odd & Even number - pseudocode

 Machine language = instructions set + rules about how the instruction can be compailed  A program called an assembler translates assembly language into machine language. A translator analyses the program (source code) and writes an equivalent machine language program. Two type of translators- Compiles and interpreters. 3 type of errors : Syntax errors Logical errors Run time errors Find Odd & Even number - pseudocode BEGIN     INT A,B      GET A     B = A % 2     IF B==0 THEN          DISPLAY  "Event number"     ELSE          DISPLAY "Odd number"     ENDIF END
Read more