Как изменить панель инструментов клавиатуры UIWebView в iOS 7?

Question

UIWebview клавиатура содержит следующий, предыдущие кнопки как (<,>). Мне нужно добавить настраиваемый toolBar для панели инструментов UIWebView KeyBoard. Пожалуйста, посоветуй мне. Я настроен в прошивке 8, но он не работает для прошивки 7.

- (void) addCustomToolBarForWebViewKeyBoardToolBar 
{  

UIWindow *keyboardWindow = nil; 

for (UIWindow *testWindow in [[UIApplication sharedApplication] windows]) { 
    if (![[testWindow class] isEqual : [UIWindow class]]) { 
     keyboardWindow = testWindow; 
     break; 
    } 
} 

// Locate UIWebFormView. 
for (UIView *possibleFormView in [keyboardWindow subviews]) { 

    if ([[possibleFormView description] hasPrefix : @"<UIInputSetContainerView"]) { 
     for (UIView* peripheralView in possibleFormView.subviews) { 

      for (UIView* peripheralView_sub in peripheralView.subviews) { 

       if ([[peripheralView_sub description] hasPrefix : @"<UIKBInputBackdropView"] && peripheralView_sub.frame.size.height == 44) { 
        [[peripheralView_sub layer] setOpacity : 0.0]; 

       } 
       // hides the accessory bar 
       if ([[peripheralView_sub description] hasPrefix : @"<UIWebFormAccessory"]) { 

        UIToolbar *toolBar = [self findWebKeyboardToolbar:peripheralView_sub]; 

        if (toolBar){ 
         editableToolBar=toolBar; 
         [self checkSelection:self]; 
         return; 
        } 
       } 
      } 
     } 
    } 
}  

} 

- (UIToolbar *)findWebKeyboardToolbar:(UIView *)parent 
{ 
if ([parent isKindOfClass:[UIToolbar class]]) { 
    // the stock toolbar contains a single item with a UISegmentedControl customView. 
    UIToolbar *tb = (UIToolbar *)parent; 
    return tb; 
} 

for (UIView *view in parent.subviews) { 
    UIToolbar *tb = [self findWebKeyboardToolbar:view]; 
    if (tb) return tb; 
} 

return nil; 
} 

Answer 1

Используйте эту категорию, это поможет вам.

@interface UIWebView (GUIFixes) 

/** 
* @brief  The custom input accessory view. 
*/ 
@property (nonatomic, strong, readwrite) UIView* customInputAccessoryView; 

/** 
* @brief  Wether the UIWebView will use the fixes provided by this category or not. 
*/ 
@property (nonatomic, assign, readwrite) BOOL usesGUIFixes; 

@end 


#import "UIWebView+GUIFixes.h" 
#import <objc/runtime.h> 

@implementation UIWebView (GUIFixes) 

static const char* const kCustomInputAccessoryView = "kCustomInputAccessoryView"; 
static const char* const fixedClassName = "UIWebBrowserViewMinusAccessoryView"; 
static Class fixClass = Nil; 

- (UIView *)browserView 
{ 
    UIScrollView *scrollView = self.scrollView; 

    UIView *browserView = nil; 
    for (UIView *subview in scrollView.subviews) { 
     if ([NSStringFromClass([subview class]) hasPrefix:@"UIWebBrowserView"]) { 
      browserView = subview; 
      break; 
     } 
    } 

    return browserView; 
} 

- (id)methodReturningCustomInputAccessoryView 
{ 
#pragma clang diagnostic push 
#pragma clang diagnostic ignored "-Wundeclared-selector" 
    UIView* view = [self performSelector:@selector(originalInputAccessoryView) withObject:nil]; 
#pragma clang diagnostic pop 

    if (view) { 

     UIView* parentWebView = self.superview; 

     while (parentWebView && ![parentWebView isKindOfClass:[UIWebView class]]) 
     { 
      parentWebView = parentWebView.superview; 
     } 

     view = [(UIWebView*)parentWebView customInputAccessoryView]; 
    } 

    return view; 
} 

- (void)ensureFixedSubclassExistsOfBrowserViewClass:(Class)browserViewClass 
{ 
    if (!fixClass) { 
     Class newClass = objc_allocateClassPair(browserViewClass, fixedClassName, 0); 
     IMP oldImp = class_getMethodImplementation(browserViewClass, @selector(inputAccessoryView)); 
#pragma clang diagnostic push 
#pragma clang diagnostic ignored "-Wundeclared-selector" 
     class_addMethod(newClass, @selector(originalInputAccessoryView), oldImp, "@@:"); 
#pragma clang diagnostic pop 

     IMP newImp = [self methodForSelector:@selector(methodReturningCustomInputAccessoryView)]; 
     class_addMethod(newClass, @selector(inputAccessoryView), newImp, "@@:"); 
     objc_registerClassPair(newClass); 

     fixClass = newClass; 
    } 
} 

- (BOOL)usesGUIFixes 
{ 
    UIView *browserView = [self browserView]; 
    return [browserView class] == fixClass; 
} 

- (void)setUsesGUIFixes:(BOOL)value 
{ 
    UIView *browserView = [self browserView]; 
    if (browserView == nil) { 
     return; 
    } 

    [self ensureFixedSubclassExistsOfBrowserViewClass:[browserView class]]; 

    if (value) { 
     object_setClass(browserView, fixClass); 
    } 
    else { 
     Class normalClass = objc_getClass("UIWebBrowserView"); 
     object_setClass(browserView, normalClass); 
    } 

    [browserView reloadInputViews]; 
} 

- (UIView*)customInputAccessoryView 
{ 
    return objc_getAssociatedObject(self, kCustomInputAccessoryView); 
} 

- (void)setCustomInputAccessoryView:(UIView*)view 
{ 
    objc_setAssociatedObject(self, 
          kCustomInputAccessoryView, 
          view, 
          OBJC_ASSOCIATION_RETAIN); 
} 

@end 

Answer 2

IOS 7.x не имеет UIWebFormAccessory класса, так что вы не можете найти его, просто заменить код следовать - (void) addCustomToolBarForWebViewKeyBoardToolBar { UIWindow * keyboardWindow = nil;

for (UIWindow *testWindow in[[UIApplication sharedApplication] windows]) { 
    if (![[testWindow class] isEqual:[UIWindow class]]) { 
     keyboardWindow = testWindow; 
     break; 
    } 
} 

UIToolbar *toolBar = [self findWebKeyboardToolbar:keyboardWindow]; 
toolBar.backgroundColor = [UIColor redColor]; 
} 

- (UIToolbar *)findWebKeyboardToolbar:(UIView *)parent { 
if ([parent isKindOfClass:[UIToolbar class]]) { 
    // the stock toolbar contains a single item with a UISegmentedControl customView. 
    UIToolbar *tb = (UIToolbar *)parent; 
    return tb; 
} 

for (UIView *view in parent.subviews) { 
    UIToolbar *tb = [self findWebKeyboardToolbar:view]; 
    if (tb) return tb; 
} 

return nil; 
}