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https://github.com/zhigang1992/react-native.git
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96e41218ed
Summary: `ThemedReactContext` wraps the actual `ReactContext` but doesn't actually receive any lifecycle events, which would set `mCurrentActivity`, so that's always stuck as `null`. To fix, we override `has/getCurrentActivity` and forward the call to the wrapped context, which actually has the correct lifecycle status. Fixes issue #9310 on github. Reviewed By: mkonicek Differential Revision: D3703005 fbshipit-source-id: 363e87ac91d50516899b413e823d5312cbb807f4
61 lines
2.0 KiB
Java
61 lines
2.0 KiB
Java
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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package com.facebook.react.uimanager;
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import javax.annotation.Nullable;
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import android.app.Activity;
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import android.content.Context;
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import com.facebook.react.bridge.ReactApplicationContext;
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import com.facebook.react.bridge.ReactContext;
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import com.facebook.react.bridge.LifecycleEventListener;
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//
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/**
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* Wraps {@link ReactContext} with the base {@link Context} passed into the constructor.
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* It provides also a way to start activities using the viewContext to which RN native views belong.
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* It delegates lifecycle listener registration to the original instance of {@link ReactContext}
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* which is supposed to receive the lifecycle events. At the same time we disallow receiving
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* lifecycle events for this wrapper instances.
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* TODO: T7538544 Rename ThemedReactContext to be in alignment with name of ReactApplicationContext
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*/
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public class ThemedReactContext extends ReactContext {
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private final ReactApplicationContext mReactApplicationContext;
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public ThemedReactContext(ReactApplicationContext reactApplicationContext, Context base) {
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super(base);
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initializeWithInstance(reactApplicationContext.getCatalystInstance());
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mReactApplicationContext = reactApplicationContext;
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}
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@Override
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public void addLifecycleEventListener(LifecycleEventListener listener) {
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mReactApplicationContext.addLifecycleEventListener(listener);
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}
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@Override
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public void removeLifecycleEventListener(LifecycleEventListener listener) {
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mReactApplicationContext.removeLifecycleEventListener(listener);
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}
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@Override
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public boolean hasCurrentActivity() {
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return mReactApplicationContext.hasCurrentActivity();
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}
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@Override
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public @Nullable Activity getCurrentActivity() {
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return mReactApplicationContext.getCurrentActivity();
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}
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}
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