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Introducing ViewType in native code 

Reviewed By: achen1

Differential Revision: D7729477

fbshipit-source-id: e8d1af87489522c4ae8b52b6a9e4c0a680abf4f6
This commit is contained in:
David Vacca 2018-04-24 12:31:56 -07:00 committed by Facebook Github Bot
parent 6b07602915
commit 16a5324ca6
3 changed files with 54 additions and 0 deletions
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4
ReactAndroid/src/main/java/com/facebook/react/uimanager/common/BUCK
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@ -3,6 +3,10 @@ load("//ReactNative:DEFS.bzl", "rn_android_library", "react_native_dep", "react_
rn_android_library(
name = "common",
srcs = glob(["*.java"]),
provided_deps = [
react_native_dep("third-party/android/support/v4:lib-support-v4"),
react_native_dep("third-party/android/support-annotations:android-support-annotations"),
],
visibility = [
"PUBLIC",
],

21
ReactAndroid/src/main/java/com/facebook/react/uimanager/common/ViewType.java Normal file
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@ -0,0 +1,21 @@
/**
* Copyright (c) 2014-present, Facebook, Inc.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
package com.facebook.react.uimanager.common;
import static com.facebook.react.uimanager.common.ViewType.FABRIC;
import static com.facebook.react.uimanager.common.ViewType.PAPER;
import static java.lang.annotation.RetentionPolicy.SOURCE;
import java.lang.annotation.Retention;
import android.support.annotation.IntDef;
@Retention(SOURCE)
@IntDef({PAPER, FABRIC})
public @interface ViewType {
int PAPER = 1;
int FABRIC = 2;
}

29
ReactAndroid/src/main/java/com/facebook/react/uimanager/common/ViewUtil.java Normal file
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@ -0,0 +1,29 @@
/**
* Copyright (c) 2014-present, Facebook, Inc.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
package com.facebook.react.uimanager.common;
import static com.facebook.react.uimanager.common.ViewType.FABRIC;
import static com.facebook.react.uimanager.common.ViewType.PAPER;
public class ViewUtil {
/**
* Counter for uniquely identifying views.
* - % 10 === 1 means it is a rootTag.
* - % 2 === 0 means it is a Fabric tag.
* See https://github.com/facebook/react/pull/12587
*
* @param reactTag {@link }
*/
@ViewType
public static int getViewType(int reactTag) {
if (reactTag % 2 == 0) return FABRIC;
return PAPER;
}
}