ch.icare.smartscan.legacy.camera.common

Class PlatformSupportManager<T>

java.lang.Object

ch.icare.smartscan.legacy.camera.common.PlatformSupportManager<T>

Type Parameters:

T - the interface which managed implementations implement

Direct Known Subclasses:

AsyncTaskExecManager, OpenCameraManager

public abstract class PlatformSupportManager<T>
extends java.lang.Object

Sometimes the application wants to access advanced functionality exposed by Android APIs that are only available in later versions of the platform. While Build.VERSION can be used to determine the device's API level and alter behavior accordingly, and it is possible to write code that uses both old and new APIs selectively, such code would fail to load on older devices that do not have the new API methods.

It is necessary to only load classes that use newer APIs than the device may support after the app has checked the API level. This requires reflection, loading one of several implementations based on the API level.

This class manages that process. Subclasses of this class manage access to implementations of a given interface in an API-level-aware way. Subclasses implementation classes by name, and the minimum API level that the implementation is compatible with. They also provide a default implementation.

At runtime an appropriate implementation is then chosen, instantiated and returned from build().

Method Summary

Modifier and Type	Method and Description
T	build()

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

build

public T build()