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105 lines
4.5 KiB
ReStructuredText
105 lines
4.5 KiB
ReStructuredText
:github_url: hide
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.. _class_JavaClassWrapper:
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JavaClassWrapper
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================
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**Hérite de :** :ref:`Object<class_Object>`
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Fournit l'accès à l'interface native Java.
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.. rst-class:: classref-introduction-group
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Description
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-----------
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The JavaClassWrapper singleton provides a way for the Godot application to send and receive data through the `Java Native Interface <https://developer.android.com/training/articles/perf-jni>`__ (JNI).
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\ **Note:** This singleton is only available in Android builds.
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::
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var LocalDateTime = JavaClassWrapper.wrap("java.time.LocalDateTime")
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var DateTimeFormatter = JavaClassWrapper.wrap("java.time.format.DateTimeFormatter")
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var datetime = LocalDateTime.now()
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var formatter = DateTimeFormatter.ofPattern("dd-MM-yyyy HH:mm:ss")
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print(datetime.format(formatter))
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\ **Warning:** When calling Java methods, be sure to check :ref:`get_exception()<class_JavaClassWrapper_method_get_exception>` to check if the method threw an exception.
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.. rst-class:: classref-introduction-group
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Tutoriels
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------------------
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- :doc:`Intégration avec les API Android <../tutorials/platform/android/javaclasswrapper_and_androidruntimeplugin>`
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.. rst-class:: classref-reftable-group
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Méthodes
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----------------
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.. table::
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:widths: auto
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+-------------------------------------+-------------------------------------------------------------------------------------------+
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| :ref:`JavaObject<class_JavaObject>` | :ref:`get_exception<class_JavaClassWrapper_method_get_exception>`\ (\ ) |
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+-------------------------------------+-------------------------------------------------------------------------------------------+
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| :ref:`JavaClass<class_JavaClass>` | :ref:`wrap<class_JavaClassWrapper_method_wrap>`\ (\ name\: :ref:`String<class_String>`\ ) |
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+-------------------------------------+-------------------------------------------------------------------------------------------+
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.. rst-class:: classref-section-separator
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----
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.. rst-class:: classref-descriptions-group
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Descriptions des méthodes
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--------------------------------------------------
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.. _class_JavaClassWrapper_method_get_exception:
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.. rst-class:: classref-method
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:ref:`JavaObject<class_JavaObject>` **get_exception**\ (\ ) :ref:`🔗<class_JavaClassWrapper_method_get_exception>`
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Returns the Java exception from the last call into a Java class. If there was no exception, it will return ``null``.
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\ **Note:** This method only works on Android. On every other platform, this method will always return ``null``.
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.. rst-class:: classref-item-separator
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----
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.. _class_JavaClassWrapper_method_wrap:
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.. rst-class:: classref-method
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:ref:`JavaClass<class_JavaClass>` **wrap**\ (\ name\: :ref:`String<class_String>`\ ) :ref:`🔗<class_JavaClassWrapper_method_wrap>`
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Wraps a class defined in Java, and returns it as a :ref:`JavaClass<class_JavaClass>` :ref:`Object<class_Object>` type that Godot can interact with.
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When wrapping inner (nested) classes, use ``$`` instead of ``.`` to separate them. For example, ``JavaClassWrapper.wrap("android.view.WindowManager$LayoutParams")`` wraps the **WindowManager.LayoutParams** class.
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\ **Note:** To invoke a constructor, call a method with the same name as the class. For example:
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::
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var Intent = JavaClassWrapper.wrap("android.content.Intent")
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var intent = Intent.Intent()
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\ **Note:** This method only works on Android. On every other platform, this method does nothing and returns an empty :ref:`JavaClass<class_JavaClass>`.
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.. |virtual| replace:: :abbr:`virtual (Cette méthode doit typiquement être redéfinie par l'utilisateur pour avoir un effet.)`
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.. |required| replace:: :abbr:`required (This method is required to be overridden when extending its base class.)`
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.. |const| replace:: :abbr:`const (Cette méthode n'a pas d'effets de bord. Elle ne modifie aucune des variables membres de l'instance.)`
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.. |vararg| replace:: :abbr:`vararg (Cette méthode accepte n'importe quel nombre d'arguments après ceux décris ici.)`
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.. |constructor| replace:: :abbr:`constructor (Cette méthode est utilisée pour construire un type.)`
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.. |static| replace:: :abbr:`static (Cette méthode n'a pas besoin d'instance pour être appelée, elle peut donc être directement appelée en utilisant le nom de la classe.)`
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.. |operator| replace:: :abbr:`operator (Cette méthode décrit un opérateur valide à utiliser avec ce type en tant qu'opérande gauche.)`
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.. |bitfield| replace:: :abbr:`BitField (Cette valeur est un nombre entier composé d'un masque de bits des options suivantes.)`
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.. |void| replace:: :abbr:`void (Aucune valeur de retour.)`
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