FragmentFactory

class FragmentFactory


Interface used to control the instantiation of Fragment instances. Implementations can be registered with a FragmentManager via setFragmentFactory.

Summary

Public constructors

Public functions

Fragment
instantiate(classLoader: ClassLoader, className: String)

Create a new instance of a Fragment with the given class name.

java-static Class<Fragment!>
loadFragmentClass(classLoader: ClassLoader, className: String)

Parse a Fragment Class from the given class name.

Public constructors

FragmentFactory

Added in 1.1.0
FragmentFactory()

Public functions

instantiate

Added in 1.1.0
fun instantiate(classLoader: ClassLoader, className: String): Fragment

Create a new instance of a Fragment with the given class name. This uses loadFragmentClass and the empty constructor of the resulting Class by default.

Parameters
classLoader: ClassLoader

The default classloader to use for instantiation

className: String

The class name of the fragment to instantiate.

Returns
Fragment

Returns a new fragment instance.

Throws
androidx.fragment.app.Fragment.InstantiationException

If there is a failure in instantiating the given fragment class. This is a runtime exception; it is not normally expected to happen.

loadFragmentClass

Added in 1.1.0
java-static fun loadFragmentClass(classLoader: ClassLoader, className: String): Class<Fragment!>

Parse a Fragment Class from the given class name. The resulting Class is kept in a global cache, bypassing the forName calls when passed the same class name again.

Parameters
classLoader: ClassLoader

The default classloader to use for loading the Class

className: String

The class name of the fragment to parse.

Returns
Class<Fragment!>

Returns the parsed Fragment Class

Throws
androidx.fragment.app.Fragment.InstantiationException

If there is a failure in parsing the given fragment class. This is a runtime exception; it is not normally expected to happen.