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https://github.com/zhigang1992/react-native.git
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df05311777
Summary:
This adds support for the `transform` animated node. This brings feature parity with the iOS implementation and allows running the NativeAnimated UIExplorer example that was created with the iOS implementation on Android. This is based on some work by kmagiera in the exponent RN fork.
This also adds support for mixing static values with animated ones in the same transform as well which is not supported on iOS at the moment. It is also implemented in a way that rebuilds the transform matrix the same way as we build it in JS so it will be easy to remove some of the current limitations like forcing the transforms order and only supporting one of each type.
**Test plan (required)**
Tested with the NativeAnimated example on Android and iOS. Also tested mixing in static values in a transform (`[{ rotate: '45deg' }, { translateX: animatedValue }]`).
Closes https://github.com/facebook/react-native/pull/8839
Differential Revision: D3682143
fbshipit-source-id: 5e6fd4b0b8be6a76053f24a36d1785771690a6f8
50 lines
1.7 KiB
Java
50 lines
1.7 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.animated;
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import com.facebook.react.bridge.JSApplicationCausedNativeException;
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import com.facebook.react.bridge.ReadableArray;
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import com.facebook.react.bridge.ReadableMap;
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/**
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* Animated node that plays a role of value aggregator. It takes two or more value nodes as an input
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* and outputs a sum of values outputted by those nodes.
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*/
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/*package*/ class AdditionAnimatedNode extends ValueAnimatedNode {
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private final NativeAnimatedNodesManager mNativeAnimatedNodesManager;
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private final int[] mInputNodes;
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public AdditionAnimatedNode(
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ReadableMap config,
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NativeAnimatedNodesManager nativeAnimatedNodesManager) {
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mNativeAnimatedNodesManager = nativeAnimatedNodesManager;
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ReadableArray inputNodes = config.getArray("input");
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mInputNodes = new int[inputNodes.size()];
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for (int i = 0; i < mInputNodes.length; i++) {
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mInputNodes[i] = inputNodes.getInt(i);
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}
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}
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@Override
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public void update() {
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mValue = 0;
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for (int i = 0; i < mInputNodes.length; i++) {
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AnimatedNode animatedNode = mNativeAnimatedNodesManager.getNodeById(mInputNodes[i]);
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if (animatedNode != null && animatedNode instanceof ValueAnimatedNode) {
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mValue += ((ValueAnimatedNode) animatedNode).mValue;
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} else {
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throw new JSApplicationCausedNativeException("Illegal node ID set as an input for " +
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"Animated.Add node");
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}
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}
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}
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}
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