Feat: Support keyboardDisplayRequiresUserAction to focus automaticlly in iOS

android/src/main/java/com/pichillilorenzo/flutter_inappwebview/webview/InAppWebViewInterface.java

@@ -81,6 +81,7 @@ void loadDataWithBaseURL(String baseUrl, String data,
  boolean zoomIn();
  boolean zoomOut();
  void clearFocus();
+ void requestFocusView(); // For requestFocus
  Map<String, Object> requestFocusNodeHref();
  Map<String, Object> requestImageRef();
  int getScrollX();

android/src/main/java/com/pichillilorenzo/flutter_inappwebview/webview/WebViewChannelDelegate.java

@@ -483,6 +483,12 @@ public void onReceiveValue(String value) {
  }
  result.success(true);
  break;
+ case requestFocus:
+ if (webView != null) {
+ webView.requestFocusView();
+ }
+ result.success(true);
+ break;
  case requestFocusNodeHref:
  if (webView != null) {
  result.success(webView.requestFocusNodeHref());

android/src/main/java/com/pichillilorenzo/flutter_inappwebview/webview/WebViewChannelDelegateMethods.java

@@ -60,6 +60,7 @@ public enum WebViewChannelDelegateMethods {
  zoomOut,
  clearFocus,
  setContextMenu,
+ requestFocus,
  requestFocusNodeHref,
  requestImageRef,
  getScrollX,

android/src/main/java/com/pichillilorenzo/flutter_inappwebview/webview/in_app_webview/InAppWebView.java

@@ -1719,6 +1719,15 @@ public void onReceiveValue(String value) {
  });
  }
 
+ public void requestFocusView() {
+ requestFocus();
+ InputMethodManager inputManager =
+ (InputMethodManager) this.getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
+ if (inputManager != null) {
+ inputManager.toggleSoftInput(InputMethodManager.SHOW_IMPLICIT, InputMethodManager.HIDE_NOT_ALWAYS); 
+ }
+ }
+
  public Map<String, Object> requestFocusNodeHref() {
  Message msg = InAppWebView.mHandler.obtainMessage();
  requestFocusNodeHref(msg);

android/src/main/java/com/pichillilorenzo/flutter_inappwebview/webview/in_app_webview/InputAwareWebView.java

@@ -150,6 +150,11 @@ public boolean checkInputConnectionProxy(final View view) {
  public void clearFocus() {
  super.clearFocus();
 
+ InputMethodManager inputManager = (InputMethodManager) this.getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
+ if (inputManager != null) {
+ inputManager.hideSoftInputFromWindow(this.getWindowToken(), 0);
+ }
+
  if (useHybridComposition) {
  return;
  }

ios/Classes/InAppWebView/InAppWebView.swift

@@ -9,6 +9,75 @@ import Flutter
 import Foundation
 import WebKit
 
+// Support `keyboardDisplayRequiresUserAction` to focus automaticlly
+typealias OldClosureType = @convention(c) (Any, Selector, UnsafeRawPointer, Bool, Bool, Any?) -> Void
+typealias NewClosureType = @convention(c) (Any, Selector, UnsafeRawPointer, Bool, Bool, Bool, Any?) -> Void
+extension WKWebView{
+ var keyboardDisplayRequiresUserAction: Bool? {
+ get {
+ return self.keyboardDisplayRequiresUserAction
+ }
+ set {
+ self.setKeyboardRequiresUserInteraction(newValue ?? true)
+ }
+ }
+
+ func setKeyboardRequiresUserInteraction( _ value: Bool) {
+ guard let WKContentView: AnyClass = NSClassFromString("WKContentView") else {
+ print("keyboardDisplayRequiresUserAction extension: Cannot find the WKContentView class")
+ return
+ }
+ // For iOS 10, *
+ let sel_10: Selector = sel_getUid("_startAssistingNode:userIsInteracting:blurPreviousNode:userObject:")
+ // For iOS 11.3, *
+ let sel_11_3: Selector = sel_getUid("_startAssistingNode:userIsInteracting:blurPreviousNode:changingActivityState:userObject:")
+ // For iOS 12.2, *
+ let sel_12_2: Selector = sel_getUid("_elementDidFocus:userIsInteracting:blurPreviousNode:changingActivityState:userObject:")
+ // For iOS 13.0, *
+ let sel_13_0: Selector = sel_getUid("_elementDidFocus:userIsInteracting:blurPreviousNode:activityStateChanges:userObject:")
+
+ if let method = class_getInstanceMethod(WKContentView, sel_10) {
+ let originalImp: IMP = method_getImplementation(method)
+ let original: OldClosureType = unsafeBitCast(originalImp, to: OldClosureType.self)
+ let block : @convention(block) (Any, UnsafeRawPointer, Bool, Bool, Any?) -> Void = { (me, arg0, arg1, arg2, arg3) in
+ original(me, sel_10, arg0, !value, arg2, arg3)
+ }
+ let imp: IMP = imp_implementationWithBlock(block)
+ method_setImplementation(method, imp)
+ }
+
+ if let method = class_getInstanceMethod(WKContentView, sel_11_3) {
+ let originalImp: IMP = method_getImplementation(method)
+ let original: NewClosureType = unsafeBitCast(originalImp, to: NewClosureType.self)
+ let block : @convention(block) (Any, UnsafeRawPointer, Bool, Bool, Bool, Any?) -> Void = { (me, arg0, arg1, arg2, arg3, arg4) in
+ original(me, sel_11_3, arg0, !value, arg2, arg3, arg4)
+ }
+ let imp: IMP = imp_implementationWithBlock(block)
+ method_setImplementation(method, imp)
+ }
+
+ if let method = class_getInstanceMethod(WKContentView, sel_12_2) {
+ let originalImp: IMP = method_getImplementation(method)
+ let original: NewClosureType = unsafeBitCast(originalImp, to: NewClosureType.self)
+ let block : @convention(block) (Any, UnsafeRawPointer, Bool, Bool, Bool, Any?) -> Void = { (me, arg0, arg1, arg2, arg3, arg4) in
+ original(me, sel_12_2, arg0, !value, arg2, arg3, arg4)
+ }
+ let imp: IMP = imp_implementationWithBlock(block)
+ method_setImplementation(method, imp)
+ }
+
+ if let method = class_getInstanceMethod(WKContentView, sel_13_0) {
+ let originalImp: IMP = method_getImplementation(method)
+ let original: NewClosureType = unsafeBitCast(originalImp, to: NewClosureType.self)
+ let block : @convention(block) (Any, UnsafeRawPointer, Bool, Bool, Bool, Any?) -> Void = { (me, arg0, arg1, arg2, arg3, arg4) in
+ original(me, sel_13_0, arg0, !value, arg2, arg3, arg4)
+ }
+ let imp: IMP = imp_implementationWithBlock(block)
+ method_setImplementation(method, imp)
+ }
+ }
+}
+
 public class InAppWebView: WKWebView, UIScrollViewDelegate, WKUIDelegate,
  WKNavigationDelegate, WKScriptMessageHandler, UIGestureRecognizerDelegate,
  WKDownloadDelegate,
@@ -78,6 +147,7 @@ public class InAppWebView: WKWebView, UIScrollViewDelegate, WKUIDelegate,
  }
  self.contextMenu = contextMenu
  self.initialUserScripts = userScripts
+ self.keyboardDisplayRequiresUserAction = false
  uiDelegate = self
  navigationDelegate = self
  scrollView.delegate = self

ios/flutter_inappwebview.podspec

@@ -22,6 +22,8 @@ A new Flutter plugin.
  s.pod_target_xcconfig = { 'DEFINES_MODULE' => 'YES', 'VALID_ARCHS[sdk=iphonesimulator*]' => 'x86_64' }
  s.swift_version = '5.0'
 
+ s.platforms = { :ios => '11.0' }
+
  s.dependency 'OrderedSet', '~>5.0'
 
  s.default_subspec = 'Core'

lib/src/in_app_webview/apple/in_app_webview_options.dart

@@ -181,6 +181,7 @@ class IOSInAppWebViewOptions
  ///- [InAppWebViewController.pauseTimers]
  ///- [InAppWebViewController.getSelectedText]
  ///- [InAppWebViewController.getHitTestResult]
+ ///- [InAppWebViewController.requestFocus]
  ///- [InAppWebViewController.requestFocusNodeHref]
  ///- [InAppWebViewController.requestImageRef]
  ///- [InAppWebViewController.postWebMessage]

lib/src/in_app_webview/in_app_webview_controller.dart

@@ -2606,6 +2606,14 @@ class InAppWebViewController {
  _inAppBrowser?.contextMenu = contextMenu;
  }
 
+ /// Only support android.
+ ///
+ ///- Android issue: https://www.pudn.com/news/6228d8129ddf223e1ad224f8.html
+ Future<void> requestFocus() async {
+ Map<String, dynamic> args = <String, dynamic>{};
+ return await _channel.invokeMethod('requestFocus', args);
+ }
+
  ///Requests the anchor or image element URL at the last tapped point.
  ///
  ///**NOTE**: On iOS, it is implemented using JavaScript.

lib/src/in_app_webview/in_app_webview_settings.dart

@@ -1099,6 +1099,7 @@ class InAppWebViewSettings_ {
  ///- [InAppWebViewController.pauseTimers]
  ///- [InAppWebViewController.getSelectedText]
  ///- [InAppWebViewController.getHitTestResult]
+ ///- [InAppWebViewController.requestFocus]
  ///- [InAppWebViewController.requestFocusNodeHref]
  ///- [InAppWebViewController.requestImageRef]
  ///- [InAppWebViewController.postWebMessage]