[Android] PlatformView pointer events (tap & drag) are horizontally mirrored in RTL mode

### Steps to reproduce

[rtl_platform_view_gesture_demo.zip](https://github.com/user-attachments/files/25515921/rtl_platform_view_gesture_demo.zip)
 
1. Set the Android system language to an RTL language (e.g., Arabic).
2. Ensure android:supportsRtl="true" is set in AndroidManifest.xml.
3. Run the provided reproduction sample.
4. Click "click blue" area.
5. Try to drag or scroll the view from the blue area and observe the movement.

### Expected results

1. Click "click blue" area should display "click blue"
2. Dragging should move the content according to the finger's actual position.

### Actual results

1. The SnackBar displays "click red" (or the action associated with the mirrored horizontal position). This confirms that touch coordinates are being horizontally inverted before reaching the PlatformView.
2. Dragging is mirrored: Dragging on the mirrored position causes the WebView to move, confirming that the entire coordinate space is flipped.

### Code sample

<details open><summary>Code sample</summary>

```xml
<application
        android:label="rtl_platform_view_gesture_demo"
        android:name="${applicationName}"
        android:supportsRtl="true"
        android:icon="@mipmap/ic_launcher">
```

```dart
Row(
            mainAxisAlignment: .spaceAround,
            children: [
              SizedBox(
                width: 150,
                height: 150,
                child: Center(
                  child: InkWell(
                    onTap: () {
                      _showSnackBar('click blue');
                    },
                    child: Container(
                      width: 100,
                      height: 100,
                      color: Colors.blue,
                      child: const Center(
                        child: Text('click blue', style: TextStyle(color: Colors.white)),
                      ),
                    ),
                  ),
                ),
              ),
              Container(
                width: 150,
                height: 150,
                child: Stack(
                  children: [
                    Positioned.fill(child: WebViewWidget(controller: _controller)),
                    Center(
                      child: InkWell(
                        onTap: () {
                          _showSnackBar('click red');
                        },
                        child: Container(
                          width: 100,
                          height: 100,
                          alignment: AlignmentDirectional.center,
                          color: Colors.red,
                          child: Text('click red', style: TextStyle(color: Colors.white)),
                        ),
                      ),
                    ),
                  ],
                ),
              ),
            ],
          ),
```

</details>


### Screenshots or Video

<details open>
<summary>Screenshots / Video demonstration</summary>

[[Upload media here]](https://github.com/user-attachments/assets/8283f1c0-ffab-442d-a244-2a5cf674a7aa)

</details>


### Logs

<details open><summary>Logs</summary>

```console
[Paste your logs here]
```

</details>


### Flutter Doctor output

<details open><summary>Doctor output</summary>

```console
[✓] Flutter (Channel stable, 3.41.2, on macOS 15.6.1 24G90 darwin-arm64, locale zh-Hans-CN) [2.2s]
    • Flutter version 3.41.2 on channel stable at /Users/xq/fvm/versions/3.41.2
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision 90673a4eef (6 days ago), 2026-02-18 13:54:59 -0800
    • Engine revision 6c0baaebf7
    • Dart version 3.11.0
    • DevTools version 2.54.1
    • Flutter download mirror https://storage.flutter-io.cn
    • Feature flags: enable-web, enable-linux-desktop, enable-macos-desktop, enable-windows-desktop, enable-android, enable-ios, cli-animations,
      enable-native-assets, omit-legacy-version-file, enable-lldb-debugging, enable-uiscene-migration

[!] Android toolchain - develop for Android devices (Android SDK version 35.0.1) [3.5s]
    • Android SDK at /Users/xq/Dev/SDK/Android/
    • Emulator version 36.1.9.0 (build_id 13823996) (CL:N/A)
    • Platform android-36, build-tools 35.0.1
    • ANDROID_HOME = /Users/xq/Dev/SDK/Android/
    • Java binary at: /Applications/Android Studio 2.app/Contents/jbr/Contents/Home/bin/java
      This is the JDK bundled with the latest Android Studio installation on this machine.
      To manually set the JDK path, use: `flutter config --jdk-dir="path/to/jdk"`.
    • Java version OpenJDK Runtime Environment (build 21.0.7+-13880790-b1038.58)
    ! Some Android licenses not accepted. To resolve this, run: flutter doctor --android-licenses

[!] Xcode - develop for iOS and macOS (Xcode 16.2) [3.4s]
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Build 16C5032a
    ! CocoaPods 1.15.2 out of date (1.16.2 is recommended).
        CocoaPods is a package manager for iOS or macOS platform code.
        Without CocoaPods, plugins will not work on iOS or macOS.
        For more info, see https://flutter.dev/to/platform-plugins
      To update CocoaPods, see https://guides.cocoapods.org/using/getting-started.html#updating-cocoapods

[✓] Chrome - develop for the web [6ms]
    • Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome

[✓] Connected device (3 available) [6.3s]
    • sdk gphone16k arm64 (mobile) • emulator-5554 • android-arm64  • Android 15 (API 35) (emulator)
    • macOS (desktop)              • macos         • darwin-arm64   • macOS 15.6.1 24G90 darwin-arm64
    • Chrome (web)                 • chrome        • web-javascript • Google Chrome 145.0.7632.75
    ! Device 1C27294610DA10TZ is not authorized.
      You might need to check your device for an authorization dialog.

[✓] Network resources [369ms]
    • All expected network resources are available.

! Doctor found issues in 2 categories.

```

</details>


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Uh oh!

[Android] PlatformView pointer events (tap & drag) are horizontally mirrored in RTL mode #182823

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Uh oh!

[Android] PlatformView pointer events (tap & drag) are horizontally mirrored in RTL mode #182823

Description

Steps to reproduce

Expected results

Actual results

Code sample

Screenshots or Video

Logs

Flutter Doctor output

Metadata

Metadata

Assignees

Labels

Type

Fields

Projects

Milestone

Relationships

Development

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