Question

尝试在单一视图中进行滑动并且它可以正常工作但不会在底部获得动画和页面指示气泡

- (void)viewDidLoad
{
[super viewDidLoad];
UISwipeGestureRecognizer *swipeleft = [[UISwipeGestureRecognizer alloc]initWithTarget:self action:@selector(screenswipeleft)];
swipeleft.numberOfTouchesRequired=1;
swipeleft.direction=UISwipeGestureRecognizerDirectionLeft;
[self.view addGestureRecognizer:swipeleft];

UISwipeGestureRecognizer *swiperight = [[UISwipeGestureRecognizer alloc]initWithTarget:self action:@selector(viewDidLoad)];
swiperight.numberOfTouchesRequired=1;
swiperight.direction=UISwipeGestureRecognizerDirectionRight;
[self.view addGestureRecognizer:swiperight];

UITextField *textField = [[UITextField alloc] initWithFrame:CGRectMake(10, 200, 300, 40)];
[self.view addSubview:textField];
NSLog(@"move left");

}
-(void)screenswipeleft {
UITextField *textField = [[UITextField alloc] initWithFrame:CGRectMake(10, 200, 300, 40)];
[self.view addSubview:textField];
NSLog(@"move right");

}

Answer 1

假设您要为UITextField设置动画。而你的UITextField有一个CGRect，起点为x - 50，y - 100;

   @implementation myViewController{
   UITextField *myTextField; //Declaring a textfield as an instance variable (global).
 }


    -(void)viewDidLoad{
    myTextField = [UITextField alloc]initWithFrame:CGRectMake(50,100,100,50)];//adding memory and setting its initial position
    //your other codes.
}
   -(void)screenswipeleft {
   [UIView animateWithDuration:3 animations:^{
        myTextField.frame = CGRectMake:(-75,100,100,50); //setting the same textfield in a position of -75 only showing 1/4th of the textfield. 
//this block animation would make the textfield animate from its starting position to this position in 3 seconds. (animateWithDuration:3 here u mention its duration).
    }];
   }

将相同的逻辑应用于其他人，您将获得所需的动画。

Answer 2

- (void)viewDidLoad
  {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.   
    _leftSwipeGestureRecognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipes:)];
    _rightSwipeGestureRecognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipes:)];

    _leftSwipeGestureRecognizer.direction = UISwipeGestureRecognizerDirectionLeft;
    _rightSwipeGestureRecognizer.direction = UISwipeGestureRecognizerDirectionRight;

    [self.view addGestureRecognizer:_leftSwipeGestureRecognizer];
    [self.view addGestureRecognizer:_rightSwipeGestureRecognizer];
}

- (void)handleSwipes:(UISwipeGestureRecognizer *)sender
 {
    if (sender.direction == UISwipeGestureRecognizerDirectionLeft) {
    CGPoint labelPosition = CGPointMake(self.swipeLabel.frame.origin.x - 100.0, self.swipeLabel.frame.origin.y);
    self.swipeLabel.frame = CGRectMake( labelPosition.x , labelPosition.y , self.swipeLabel.frame.size.width, self.swipeLabel.frame.size.height);

    }

    if (sender.direction == UISwipeGestureRecognizerDirectionRight) {
        CGPoint labelPosition = CGPointMake(self.swipeLabel.frame.origin.x + 100.0, self.swipeLabel.frame.origin.y);
        self.swipeLabel.frame = CGRectMake( labelPosition.x , labelPosition.y , self.swipeLabel.frame.size.width, self.swipeLabel.frame.size.height);
   }
}

Answer 3

试试这个。

-(void)screenswipeleft 
{
   [UIView beginAnimations:nil context:nil];
                       [UIView setAnimationDuration:0.4];

                       textField.frame = CGRectMake(10, 200, 300, 40)];


                       [UIView commitAnimations]



}

如何使用UISwipeGestureRecognizer为左/右滑动视图设置动画

3 个答案: