mirror of
https://github.com/zhigang1992/react-native.git
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1490ab12ef
Summary:
Includes React Native and its dependencies Fresco, Metro, and Yoga. Excludes samples/examples/docs.
find: ^(?:( *)|( *(?:[\*~#]|::))( )? *)?Copyright (?:\(c\) )?(\d{4})\b.+Facebook[\s\S]+?BSD[\s\S]+?(?:this source tree|the same directory)\.$
replace: $1$2$3Copyright (c) $4-present, Facebook, Inc.\n$2\n$1$2$3This source code is licensed under the MIT license found in the\n$1$2$3LICENSE file in the root directory of this source tree.
Reviewed By: TheSavior, yungsters
Differential Revision: D7007050
fbshipit-source-id: 37dd6bf0ffec0923bfc99c260bb330683f35553e
46 lines
1.4 KiB
Java
46 lines
1.4 KiB
Java
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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package com.facebook.react.bridge;
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import javax.annotation.Nullable;
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import android.app.Activity;
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/**
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* Base class for Catalyst native modules that require access to the {@link ReactContext}
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* instance.
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*/
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public abstract class ReactContextBaseJavaModule extends BaseJavaModule {
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private final ReactApplicationContext mReactApplicationContext;
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public ReactContextBaseJavaModule(ReactApplicationContext reactContext) {
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mReactApplicationContext = reactContext;
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}
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/**
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* Subclasses can use this method to access catalyst context passed as a constructor
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*/
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protected final ReactApplicationContext getReactApplicationContext() {
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return mReactApplicationContext;
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}
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/**
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* Get the activity to which this context is currently attached, or {@code null} if not attached.
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*
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* DO NOT HOLD LONG-LIVED REFERENCES TO THE OBJECT RETURNED BY THIS METHOD, AS THIS WILL CAUSE
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* MEMORY LEAKS.
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*
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* For example, never store the value returned by this method in a member variable. Instead, call
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* this method whenever you actually need the Activity and make sure to check for {@code null}.
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*/
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protected @Nullable final Activity getCurrentActivity() {
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return mReactApplicationContext.getCurrentActivity();
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}
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}
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