Use tag ids for testID

Summary: View tags are currently used for end-to-end test IDs. We'd like to overload the tag field with other information such as nativeID (for native refs) and transitionID (for shared element transitions) in the future. Added a key for testID's tag

Reviewed By: AaaChiuuu

Differential Revision: D4833045

fbshipit-source-id: c2f9371c9a3dbb2411e114f4f096f723ac3132c0

ReactAndroid/src/main/java/com/facebook/react/uimanager/BUCK

@@ -26,5 +26,6 @@ android_library(
         react_native_target("java/com/facebook/react/modules/i18nmanager:i18nmanager"),
         react_native_target("java/com/facebook/react/touch:touch"),
         react_native_target("java/com/facebook/react/uimanager/annotations:annotations"),
+        react_native_target("res:uimanager"),
     ],
 )

ReactAndroid/src/main/java/com/facebook/react/uimanager/BaseViewManager.java

@@ -5,6 +5,7 @@ package com.facebook.react.uimanager;
 import android.graphics.Color;
 import android.os.Build;
 import android.view.View;
+import com.facebook.react.R;
 import com.facebook.react.bridge.ReadableArray;
 import com.facebook.react.uimanager.annotations.ReactProp;
 
@@ -85,6 +86,9 @@ public abstract class BaseViewManager<T extends View, C extends LayoutShadowNode
 
   @ReactProp(name = PROP_TEST_ID)
   public void setTestId(T view, String testId) {
+    view.setTag(R.id.react_test_id, testId);
+
+    // temporarily set the tag and keyed tags to avoid end to end test regressions
     view.setTag(testId);
   }
 

ReactAndroid/src/main/res/BUCK

@@ -27,4 +27,13 @@ android_resource(
     ],
 )
 
+android_resource(
+    name = "uimanager",
+    package = "com.facebook.react",
+    res = "views/uimanager",
+    visibility = [
+        "PUBLIC",
+    ],
+)
+
 # New resource directories must be added to react-native-github/ReactAndroid/build.gradle

ReactAndroid/src/main/res/views/uimanager/values/ids.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+  <!-- tag is used to store the testID tag -->
+  <item type="id" name="react_test_id"/>
+</resources>