Replace constructor with StepBuilder pattern

[rafakob]

Consider replacing constructor for required fields with StepBuilderPattern. Constructor has two cons:

• if you got a lot of extras, you need to keep track their order
• if you change field position in activity, constructor arguments will also be changed, eg:

@Extra String s;
@Extra int i;
startActivity(new DetailActivityIntentBuilder(myString, myInt).build());

Switch position in code:

@Extra int i;
@Extra String s;
// constructor will be changed to: DetailActivityIntentBuilder(int i, String s). 
// You'd have to switch your parameters. And what if their the same type? You're not gonna get compile error.
startActivity(new DetailActivityIntentBuilder(myString, myInt).build());

[kobakei]

Thank you for your feedback.

The constructor with required params is same as IntentBuilder, which has pros that it raises compiler error if some required params are missing.

On the other hand, as you says, a lot of required params and their order may be confusing for developers.
Dose anyone have good solution?