{% setvar book_path %}/reference/androidx/_book.yaml{% endsetvar %} {% include "_shared/_reference-head-tags.html" %}
public class FragmentFactory
Interface used to control the instantiation of Fragment
instances. Implementations can be registered with a FragmentManager
via FragmentManager#setFragmentFactory(FragmentFactory)
.
See also | |
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setFragmentFactory |
androidx.fragment.app.FragmentManager#setFragmentFactory(FragmentFactory) |
Public constructors |
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Public methods |
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@NonNull Fragment |
instantiate(@NonNull ClassLoader classLoader, @NonNull String className) Create a new instance of a Fragment with the given class name. |
static @NonNull Class<@NonNull Fragment> |
loadFragmentClass( Parse a Fragment Class from the given class name. |
@NonNull
public Fragment instantiate(@NonNull ClassLoader classLoader, @NonNull String className)
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 | |
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@NonNull ClassLoader classLoader |
The default classloader to use for instantiation |
@NonNull String className |
The class name of the fragment to instantiate. |
Returns | |
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Fragment |
Returns a new fragment instance. |
Throws | |
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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. |
@NonNull
public static Class<@NonNull Fragment> loadFragmentClass(
@NonNull ClassLoader classLoader,
@NonNull String className
)
Parse a Fragment Class from the given class name. The resulting Class is kept in a global cache, bypassing the Class#forName(String)
calls when passed the same class name again.
Parameters | |
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@NonNull ClassLoader classLoader |
The default classloader to use for loading the Class |
@NonNull String className |
The class name of the fragment to parse. |
Throws | |
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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. |