Added in API level 28

Summary: Ctors | Methods | Inherited Methods

AppComponentFactory

public class AppComponentFactory
extends Object

java.lang.Object
↳	android.app.AppComponentFactory

Interface used to control the instantiation of manifest elements.

See also:

Summary

Public constructors
`AppComponentFactory()`

Public methods
`Activity`	`instantiateActivity(ClassLoader cl, String className, Intent intent)` Allows application to override the creation of activities.
`Application`	`instantiateApplication(ClassLoader cl, String className)` Allows application to override the creation of the application object.
`ClassLoader`	`instantiateClassLoader(ClassLoader cl, ApplicationInfo aInfo)` Allows application to override the creation of the default class loader.
`ContentProvider`	`instantiateProvider(ClassLoader cl, String className)` Allows application to override the creation of providers.
`BroadcastReceiver`	`instantiateReceiver(ClassLoader cl, String className, Intent intent)` Allows application to override the creation of receivers.
`Service`	`instantiateService(ClassLoader cl, String className, Intent intent)` Allows application to override the creation of services.

Inherited methods

From class


        
          java.lang.Object

`Object`	`clone()` Creates and returns a copy of this object.
`boolean`	`equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void`	`finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>`	`getClass()` Returns the runtime class of this `Object`.
`int`	`hashCode()` Returns a hash code value for the object.
`final void`	`notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()` Returns a string representation of the object.
`final void`	`wait(long timeout, int nanos)` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.
`final void`	`wait(long timeout)` Causes the current thread to wait until either another thread invokes the `notify()` method or the `notifyAll()` method for this object, or a specified amount of time has elapsed.
`final void`	`wait()` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object.

Public constructors

AppComponentFactory

public AppComponentFactory ()

Public methods

instantiateActivity

Added in API level 28

public Activity instantiateActivity (ClassLoader cl, 
                String className, 
                Intent intent)

Allows application to override the creation of activities. This can be used to perform things such as dependency injection or class loader changes to these classes.

This method is only intended to provide a hook for instantiation. It does not provide earlier access to the Activity object. The returned object will not be initialized as a Context yet and should not be used to interact with other android APIs.

Parameters
`cl`	`ClassLoader`: The default classloader to use for instantiation. This value must never be `null`.
`className`	`String`: The class to be instantiated. This value must never be `null`.
`intent`	`Intent`: Intent creating the class. This value may be `null`.

Returns
`Activity`	This value will never be `null`.

Throws
`ClassNotFoundException`
`IllegalAccessException`
`InstantiationException`

instantiateApplication

Added in API level 28

public Application instantiateApplication (ClassLoader cl, 
                String className)

Allows application to override the creation of the application object. This can be used to perform things such as dependency injection or class loader changes to these classes.

This method is only intended to provide a hook for instantiation. It does not provide earlier access to the Application object. The returned object will not be initialized as a Context yet and should not be used to interact with other android APIs.

Parameters
`cl`	`ClassLoader`: The default classloader to use for instantiation. This value must never be `null`.
`className`	`String`: The class to be instantiated. This value must never be `null`.

Returns
`Application`	This value will never be `null`.

Throws
`ClassNotFoundException`
`IllegalAccessException`
`InstantiationException`

instantiateClassLoader

Added in Android Q

public ClassLoader instantiateClassLoader (ClassLoader cl, 
                ApplicationInfo aInfo)

Allows application to override the creation of the default class loader. This can be used to perform things such as dependency injection or setting up a custom class loader hierarchy.

Parameters
`cl`	`ClassLoader`: The default classloader instantiated by platform. This value must never be `null`.
`aInfo`	`ApplicationInfo`: Information about the application being loaded. This value must never be `null`.

Returns
`ClassLoader`	This value will never be `null`.

instantiateProvider

Added in API level 28

public ContentProvider instantiateProvider (ClassLoader cl, 
                String className)

Allows application to override the creation of providers. This can be used to perform things such as dependency injection or class loader changes to these classes.

This method is only intended to provide a hook for instantiation. It does not provide earlier access to the ContentProvider object. The returned object will not be initialized with a Context yet and should not be used to interact with other android APIs.

Parameters
`cl`	`ClassLoader`: The default classloader to use for instantiation. This value must never be `null`.
`className`	`String`: The class to be instantiated. This value must never be `null`.

Returns
`ContentProvider`	This value will never be `null`.

Throws
`ClassNotFoundException`
`IllegalAccessException`
`InstantiationException`

instantiateReceiver

Added in API level 28

public BroadcastReceiver instantiateReceiver (ClassLoader cl, 
                String className, 
                Intent intent)

Allows application to override the creation of receivers. This can be used to perform things such as dependency injection or class loader changes to these classes.

Parameters
`cl`	`ClassLoader`: The default classloader to use for instantiation. This value must never be `null`.
`className`	`String`: The class to be instantiated. This value must never be `null`.
`intent`	`Intent`: Intent creating the class. This value may be `null`.

Returns
`BroadcastReceiver`	This value will never be `null`.

Throws
`ClassNotFoundException`
`IllegalAccessException`
`InstantiationException`

instantiateService

Added in API level 28

public Service instantiateService (ClassLoader cl, 
                String className, 
                Intent intent)

Allows application to override the creation of services. This can be used to perform things such as dependency injection or class loader changes to these classes.

This method is only intended to provide a hook for instantiation. It does not provide earlier access to the Service object. The returned object will not be initialized as a Context yet and should not be used to interact with other android APIs.

Parameters
`cl`	`ClassLoader`: The default classloader to use for instantiation. This value must never be `null`.
`className`	`String`: The class to be instantiated. This value must never be `null`.
`intent`	`Intent`: Intent creating the class. This value may be `null`.

Returns
`Service`	This value will never be `null`.

Throws
`ClassNotFoundException`
`IllegalAccessException`
`InstantiationException`