mirror of
https://github.com/zhigang1992/react-native.git
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8e81644f64
Summary: This diff implements NativeAnimation offsets on Android. Running the examples should show no change; however, calling `setOffset()` should offset the final value for any value node by that amount. This brings Android up to date with JS and iOS animation APIs. Closes https://github.com/facebook/react-native/pull/10680 Differential Revision: D4119609 fbshipit-source-id: 96dccdf25f67c64c6787fd9ac762ec841cefc46a
58 lines
1.9 KiB
Java
58 lines
1.9 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 which takes two or more value node as an input and outputs an in-order
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* division of their values.
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*/
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/*package*/ class DivisionAnimatedNode extends ValueAnimatedNode {
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private final NativeAnimatedNodesManager mNativeAnimatedNodesManager;
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private final int[] mInputNodes;
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public DivisionAnimatedNode(
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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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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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double value = ((ValueAnimatedNode) animatedNode).getValue();
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if (i == 0) {
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mValue = value;
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continue;
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}
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if (value == 0) {
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throw new JSApplicationCausedNativeException("Detected a division by zero in " +
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"Animated.divide node");
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}
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mValue /= value;
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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.divide node");
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}
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}
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}
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}
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