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*************************
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Loader Callback Interface
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*************************
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.. highlight:: java
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.. class:: LoaderCallbackInterface
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Interface for callback object in case of asynchronous initialization of OpenCV
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void onManagerConnected()
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------------------------
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.. method:: void onManagerConnected(int status)
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Callback method that is called after OpenCV library initialization
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:param status: Status of initialization. See Initialization status constants
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void onPackageInstall()
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-----------------------
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.. method:: void onPackageInstall(InstallCallbackInterface Callback)
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Callback method that is called in case when package installation is needed
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:param callback: Answer object with approve and cancel methods and package description
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Initialization status constants
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-------------------------------
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.. data:: SUCCESS
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OpenCV initialization finished successfully
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.. data:: RESTART_REQUIRED
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OpenCV library installation via Google Play service was initialized. Application restart is required
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.. data:: MARKET_ERROR
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Google Play (Android Market) cannot be invoked
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.. data:: INSTALL_CANCELED
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OpenCV library installation was canceled by user
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.. data:: INCOMPATIBLE_MANAGER_VERSION
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Version of OpenCV Manager Service is incompatible with this app. Service update is needed
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.. data:: INIT_FAILED
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OpenCV library initialization failed
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