Description
Kotlin stdlib uses lambdas to build different types of complex objects:
buildString
buildSequence
List builder
I propose to add intent builder to ktx. That will work like:
buildIntent {
action = "some.Action"
data = "http://example.com".toUri()
putExtra("name", value)
}Possible implementation:
inline fun buildIntent(initializer: Intent.() -> Unit) = Intent().apply { initializer() }Also we can move often used properties to arguments of the function, such as action:
inline fun buildIntent(action: String) = Intent(action).apply { initializer() }but not sure that this is make a lot of sense.
But another feature would more useful. Intent builder with reified generic instead class argument:
inline fun <reified T> buildIntent(
context: Context,
initializer: Intent.() -> Unit
) = Intent(context, T::class.java).apply { initializer() }This version also can provide empty lambda as default argument for initilizer, to make builder usage optional, reified acitivity creation already useful feature
Possible naming:
Intent (same as List builder, that looks like constructor call but actually function)
buildIntent (same as stringBuilder)
intent is short but doesn't follow current Kotlin naming and clashes with variable names