从ios 7上的工具栏移除键盘会留下模糊效果

Question

我可以删除工具栏但是我的宽度是工具栏高度的模糊。

有关如何删除此内容的任何想法吗？

以下代码是该功能。这很直接。 我在使用phonegap的webview中使用它。

-(void) removeBar {
    // Locate non-UIWindow.
    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]) {
        // iOS 5 sticks the UIWebFormView inside a UIPeripheralHostView.
        if ([
            [possibleFormView description] rangeOfString: @"UIPeripheralHostView"].location != NSNotFound) {

            // remove the border above the toolbar in iOS 6
            [
                [possibleFormView layer] setMasksToBounds: YES];

            for (UIView * subviewWhichIsPossibleFormView in [possibleFormView subviews]) {
                if ([
                    [subviewWhichIsPossibleFormView description] rangeOfString: @"UIWebFormAccessory"].location != NSNotFound) {
                    [subviewWhichIsPossibleFormView removeFromSuperview];

                    // http://stackoverflow.com/questions/10746998/phonegap-completely-removing-the-black-bar-from-the-iphone-keyboard/10796550#10796550
                    UIScrollView * webScroll;
                    if ([
                        [
                            [UIDevice currentDevice] systemVersion] floatValue] >= 5.0) {
                        webScroll = [
                            [self webView] scrollView];
                    } else {
                        webScroll = [
                            [
                                [self webView] subviews] lastObject];
                    }

                    CGRect newFrame = [webScroll frame];

                    float accessoryHeight = [subviewWhichIsPossibleFormView frame].size.height;
                    newFrame.size.height += accessoryHeight;

                    [subviewWhichIsPossibleFormView removeFromSuperview];
                    [webScroll setFrame: newFrame];
                }
            }
        }
    }
}

如果您遇到此问题，请务必转到https://bugreport.apple.com并复制rdar：// 9844216

Answer 1

- (void)removeKeyboardTopBar {
// Locate non-UIWindow.
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:@"<UIPeripheralHostView"]) {
        for (UIView* peripheralView in possibleFormView.subviews) {

            // HERE!! hides the backdrop (iOS 7)
            if ([[peripheralView description] hasPrefix:@"<UIKBInputBackdropView"]) {
                [[peripheralView layer] setOpacity:0.0];
            }
            // hides the accessory bar
            if ([[peripheralView description] hasPrefix:@"<UIWebFormAccessory"]) {
                // remove the extra scroll space for the form accessory bar
                CGRect newFrame = diaryEditorView.scrollView.frame;
                newFrame.size.height += peripheralView.frame.size.height;
                diaryEditorView.scrollView.frame = newFrame;

                // remove the form accessory bar
                [peripheralView removeFromSuperview];
            }
            // hides the thin grey line used to adorn the bar (iOS 6)
            if ([[peripheralView description] hasPrefix:@"<UIImageView"]) {
                [[peripheralView layer] setOpacity:0.0];
            }
        }
    }
}

}

Answer 2

User2038156的答案对我来说在7.1上效果不佳，因为它还排除了键盘背后的面板，使其完全透明。要仅删除额外区域的背景，您可以使用此代码：

- (void)removeBar {
    if(self.isHidingDoneBar){
        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:@"<UIPeripheralHostView"]) {
                for (UIView* peripheralView in possibleFormView.subviews) {

                    // HERE!! hides the backdrop (iOS 7)
                    if ([[peripheralView description] hasPrefix:@"<UIKBInputBackdropView"] && peripheralView.frame.size.height == 44) {
                        [[peripheralView layer] setOpacity:0.0];
                    }
                    // hides the accessory bar
                    if ([[peripheralView description] hasPrefix:@"<UIWebFormAccessory"]) {
                        // remove the extra scroll space for the form accessory bar
                        CGRect newFrame = webView.scrollView.frame;
                        newFrame.size.height += peripheralView.frame.size.height;
                        webView.scrollView.frame = newFrame;

                        // remove the form accessory bar
                        [peripheralView removeFromSuperview];
                    }
                    // hides the thin grey line used to adorn the bar (iOS 6)
                    if ([[peripheralView description] hasPrefix:@"<UIImageView"]) {
                        [[peripheralView layer] setOpacity:0.0];
                    }
                }
            }
        }
    }
}

Answer 3

这是一个快速的方法，只需一行代码即可在swift中完成相同的操作，在您的自定义UIResponder中完成：

public override func becomeFirstResponder() -> Bool {

     if !self.isEditing {

            super.becomeFirstResponder()
            //TODO: Do some sanity checks here , this is a hack to remove the backdrop on iOS 7.0 +
            self.inputView?.superview?.subviews.first?.removeFromSuperview()

     }
}