Question

我想实现，当从屏幕底部滑动到屏幕顶部时，键盘会显示在屏幕上，当屏幕上从上到下滑动时，键盘会隐藏。当我们在屏幕上滑动搜索文本字段和键盘时，它就像iOS 7效果一样，当向下滑动它的隐藏时。

Answer 1

试试这个：

//declare a property to store your current responder
@property (nonatomic, assign) id currentResponder;
//in viewDidLoad:

UISwipeGestureRecognizer *swipe = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(resignOnSwipe:)];
[self.collectionView addGestureRecognizer:swipe];


//Implement the below delegate method:

- (void)textFieldDidBeginEditing:(UITextField *)textField {
    self.currentResponder = textField;
}

//Implement resignOnSwipe:

- (void)resignOnSwipe:(id)sender {
    [self.currentResponder resignFirstResponder]
}

Answer 2

尝试这样的事情，..它运作良好

在xib中，

添加文本字段并隐藏它。将其连接到.h文件并将其命名为tf。

在.h文件中，

添加

#import <UIKit/UIKit.h>

@interface KeyboardDisplay : UIViewController <UIGestureRecognizerDelegate>
{

__弱IBOutlet UITextField * tf;

在.m文件中，

- (void)viewDidLoad
{

[super viewDidLoad];

UISwipeGestureRecognizer *swipeGesture = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipeGesture:)];
swipeGesture.direction = UISwipeGestureRecognizerDirectionUp;
[self.view addGestureRecognizer:swipeGesture];


UISwipeGestureRecognizer *swipeGesture2 = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipeGesture:)];
swipeGesture2.direction = UISwipeGestureRecognizerDirectionDown;
[self.view addGestureRecognizer:swipeGesture2];

}

-(void)handleSwipeGesture:(UISwipeGestureRecognizer *) sender
{

//Gesture detect - swipe up/down , can be recognized direction
if(sender.direction == UISwipeGestureRecognizerDirectionUp)
{

    [tf becomeFirstResponder];

    NSLog(@"Up");

}
else if(sender.direction == UISwipeGestureRecognizerDirectionDown)
{

    [tf resignFirstResponder];
    NSLog(@"down");
}
}

注意：不要忘记在xib中隐藏文本字段。

在imessenger提供的屏幕上滑动时显示/隐藏键盘

2 个答案: