UITextView - 隐藏键盘后如何保持光标

Question

我正在尝试制作一个用户可以输入文本和表情符号的 UITextView。

我在显示光标时遇到了问题。

我的目标是让光标在选择表情时正常显示（键盘已隐藏）。

我知道它可以做到，因为一个名为“Kakao Story”的应用程序具有该功能。

有人有解决办法吗？谢谢。

Answer 1

我找到了一种隐藏键盘视图以访问我的目的的方法。

这里是代码

+ (void)hideKeyboard
{
    for (UIWindow *aWindow in [[UIApplication sharedApplication] windows]) {

        for (UIView *possibleKeyboard in [aWindow subviews]) {
            UIView *keyboardView = [self getPeripheralHostViewFromView:possibleKeyboard];
            if (keyboardView) {
                [keyboardView setHidden:YES];
            }
        }
    }
}

+ (void)unhideKeyboard
{
    for (UIWindow *aWindow in [[UIApplication sharedApplication] windows]) {

        for (UIView *possibleKeyboard in [aWindow subviews]) {
            UIView *keyboardView = [self getPeripheralHostViewFromView:possibleKeyboard];
            if (keyboardView) {
                [keyboardView setHidden:NO];
            }
        }
    }
}

+ (UIView *)getPeripheralHostViewFromView:(UIView *)superView
{
    if ([superView.description hasPrefix:@"<UIPeripheralHostView"]) {
        return superView;
    }else if([superView.description hasPrefix:@"<UIKBInputBackdropView"]) {
        return superView.superview;
    }else {
        for (UIView *subView in superView.subviews) {
            UIView *keyboardHostView = [self getPeripheralHostViewFromView:subView];
            if (keyboardHostView) {
                return keyboardHostView;
            }
        }
    }
    return nil;
}