KeyboardInputDetector

Created By UnityPluginXcodeTemplate

Download Unity Package

はじめに

環境

目的

UnityのiOSアプリで、キーボードを出さずに、キーボードの入力を受け取る

試したこと

TouchScreenKeyboard.hideInput

UIResponder.keyCommands

コントローラの入力を解析する

UIResponder.keyCommands

UIResponder.keyCommandsを設定する

 override var keyCommands: [UIKeyCommand]? {
 return "wedcxzaqufhrytjnlvog".map({ (c: Character) -> UIKeyCommand in
 return UIKeyCommand(input: String(c), modifierFlags: [], action: #selector(handlerKeyInput(command:)))
 })
 }

 override func viewDidAppear(_ animated: Bool) {
 _ = self.becomeFirstResponder()
 }

UIResponder.keyCommandsをUnityで利用する。

step.1 指定されたキー入力を受け取り、通知するViewControllerを実装する

step.2 作ったViewControllerをUnityのViewのsubViewに追加する

 detectorViewController = KeyboardInputDetectorViewController()
 detectorViewController.view.frame = CGRect(x: 0, y: 0, width: 0, height: 0)
 detectorViewController.view.backgroundColor = .clear
 UnityGetGLViewController().view.addSubview(detectorViewController.view)

step.3 swiftのフレームワークを呼び出すネイティブプラグインを実装する

#import <KeyboardInputDetector/KeyboardInputDetector-Swift.h>
typedef void (*OnKeyboardInputHandler) (const char* input);
extern "C" {
 KeyboardInputDetector* KeyboardInputDetector_init();
 void KeyboardInputDetector_startDetection(KeyboardInputDetector* detector, unsigned char* str);
 void KeyboardInputDetector_stopDetection(KeyboardInputDetector* detector);
 void KeyboardInputDetector_registerOnKeyboardInput(KeyboardInputDetector* detector, OnKeyboardInputHandler handler);
 void KeyboardInputDetector_release(KeyboardInputDetector* detector);
}
KeyboardInputDetector* KeyboardInputDetector_init() {
 KeyboardInputDetector* detector = [KeyboardInputDetector alloc];
 CFRetain((CFTypeRef)detector);
 return detector;
}
void KeyboardInputDetector_startDetection(KeyboardInputDetector* detector, unsigned char* str) {
 [detector startDetectionWithUnityView: UnityGetGLViewController().view
 keys: @"wedcxzaqufhrytjnlvog"];
}
void KeyboardInputDetector_stopDetection(KeyboardInputDetector* detector) {
 [detector stopDetection];
}
void KeyboardInputDetector_registerOnKeyboardInput(KeyboardInputDetector* detector, OnKeyboardInputHandler handler) {
 [detector onKeyInputWithHandler: ^(NSString* str) {
 handler([str UTF8String]);
 }];
}

step.4 Unityから呼び出す

namespace KeyboardInputDetector
{
 public class KeyboardInputDetectorIOS : IKeyboardInputDetector
 {
 [DllImport("__Internal")]
 private static extern IntPtr KeyboardInputDetector_init();
 [DllImport("__Internal")]
 private static extern void KeyboardInputDetector_startDetection(IntPtr detector, string str);
 [DllImport("__Internal")]
 private static extern void KeyboardInputDetector_stopDetection(IntPtr detector);
 [DllImport("__Internal")]
 private static extern void KeyboardInputDetector_registerOnKeyboardInput(IntPtr detector, OnKeyboardInputHandler handler);
 [DllImport("__Internal")]
 private static extern void KeyboardInputDetector_release(IntPtr detector);
 private IntPtr detector;
 public KeyboardInputDetectorIOS()
 {
 detector = KeyboardInputDetector_init();
 }
 ~KeyboardInputDetectorIOS()
 {
 KeyboardInputDetector_release(detector);
 }
 public void StartDetection(string str)
 {
 KeyboardInputDetector_startDetection(detector, str);
 KeyboardInputDetector_registerOnKeyboardInput(detector, HandlerOnKeyboardInput);
 }
 public void StopDetection()
 {
 KeyboardInputDetector_stopDetection(detector);
 }
 public event OnKeyboardInputDelegate OnKeyboardInput
 {
 add { onKeyboardInput += value; }
 remove { onKeyboardInput -= value; }
 }
 private static event OnKeyboardInputDelegate onKeyboardInput;
 [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
 private delegate void OnKeyboardInputHandler(string input);
 [MonoPInvokeCallback(typeof(OnKeyboardInputHandler))]
 private static void HandlerOnKeyboardInput(string input)
 {
 if (onKeyboardInput != null)
 onKeyboardInput(input);
 }
 }
}