Revert "Remove support for Android API < 23 in ReactEditText (#39671)"

This reverts commit 1904e80.

Author: huntie

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/views/textinput/ReactEditText.java

@@ -9,6 +9,8 @@
 
 import static com.facebook.react.uimanager.UIManagerHelper.getReactContext;
 
+import android.content.ClipData;
+import android.content.ClipboardManager;
 import android.content.Context;
 import android.graphics.Color;
 import android.graphics.Paint;
@@ -208,7 +210,9 @@ public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
           public void onDestroyActionMode(ActionMode mode) {}
         };
     setCustomSelectionActionModeCallback(customActionModeCallback);
-    setCustomInsertionActionModeCallback(customActionModeCallback);
+    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+      setCustomInsertionActionModeCallback(customActionModeCallback);
+    }
   }
 
   @Override
@@ -304,7 +308,26 @@ public InputConnection onCreateInputConnection(EditorInfo outAttrs) {
   @Override
   public boolean onTextContextMenuItem(int id) {
     if (id == android.R.id.paste) {
-      id = android.R.id.pasteAsPlainText;
+      if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+        id = android.R.id.pasteAsPlainText;
+      } else {
+        ClipboardManager clipboard =
+            (ClipboardManager) getContext().getSystemService(Context.CLIPBOARD_SERVICE);
+        ClipData previousClipData = clipboard.getPrimaryClip();
+        if (previousClipData != null) {
+          for (int i = 0; i < previousClipData.getItemCount(); i++) {
+            final CharSequence text = previousClipData.getItemAt(i).coerceToText(getContext());
+            final CharSequence paste = (text instanceof Spanned) ? text.toString() : text;
+            if (paste != null) {
+              ClipData clipData = ClipData.newPlainText(null, text);
+              clipboard.setPrimaryClip(clipData);
+            }
+          }
+          boolean actionPerformed = super.onTextContextMenuItem(id);
+          clipboard.setPrimaryClip(previousClipData);
+          return actionPerformed;
+        }
+      }
     }
     return super.onTextContextMenuItem(id);
   }
@@ -679,8 +702,10 @@ public void maybeSetText(ReactTextUpdate reactTextUpdate) {
     }
     mDisableTextDiffing = false;
 
-    if (getBreakStrategy() != reactTextUpdate.getTextBreakStrategy()) {
-      setBreakStrategy(reactTextUpdate.getTextBreakStrategy());
+    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+      if (getBreakStrategy() != reactTextUpdate.getTextBreakStrategy()) {
+        setBreakStrategy(reactTextUpdate.getTextBreakStrategy());
+      }
     }
 
     // Update cached spans (in Fabric only).