iphone - 方向键盘移动

Question

这里有一些关于纵向文本字段移动的精彩教程。

One Two Three

另一方面，我的 View 可以旋转为纵向和横向，并且在这两种方向上键盘都会遮挡文本字段...现在，纵向和横向方向中的一个都可以工作。

所以我想知道如何才能包含两个横向方向。

这就是我正在做的事情:

-(void) keyboardWillShow:(NSNotification *)notif{
 if ([serverIP isFirstResponder]){
    if (isPortrait && self.view.frame.origin.y >= 0){
        [self setViewMovedVertical:YES];
    }
    else if (!isPortrait && self.view.frame.origin.x >= 0){
        [self setViewMovedHorizontal:YES];
    }
 }
}

移动 View 。下面是对应的方法

#define PORTRAIT_KEY_OFF 216
#define LANDSCAPE_KEY_OFF 140

-(void) setViewMovedVertical:(BOOL)movedUp{
 [UIView beginAnimations:nil context:NULL];
 [UIView setAnimationDuration:0.4];

 CGRect rect = self.view.frame;

 if (movedUp){
     rect.origin.y -= PORTRAIT_KEY_OFF;
     rect.size.height += PORTRAIT_KEY_OFF;
 }
 else{
     rect.origin.y += PORTRAIT_KEY_OFF;
     rect.size.height -= PORTRAIT_KEY_OFF;
 }

 self.view.frame = rect;

 [UIView commitAnimations];
}

-(void) setViewMovedHorizontal:(BOOL)moved{
 [UIView beginAnimations:nil context:NULL];
 [UIView setAnimationDuration:0.4]; 

 CGRect rect = self.view.frame;

 if (moved){
     rect.origin.x -= LANDSCAPE_KEY_OFF;
     rect.size.width += LANDSCAPE_KEY_OFF;
 }
 else{
     rect.origin.x += LANDSCAPE_KEY_OFF;
     rect.size.width -= LANDSCAPE_KEY_OFF;
 }

 self.view.frame = rect;

 [UIView commitAnimations];

}

这是将其向下移动的方法

-(IBAction) serverIPDone: (UITextField *) sender{
if ([serverIP isFirstResponder]){
 if (self.view.frame.origin.y < 0){
    [self setViewMovedVertical:NO];
 }
 if (self.view.frame.origin.x < 0){
    [self setViewMovedHorizontal:NO];   
 }
 [serverIP resignFirstResponder];
}
}

希望对您有帮助!如果我已经消除了歧义(看看我在那里做了什么？)这个问题，请告诉我!

Answer 1

终于想通了!!!!

错误所在:两种景观模式之间的原点确实发生了变化。因此，您所要做的就是检测您所处的景观版本，并根据该版本进行添加或删除!

-(IBAction) serverIPDone: (UITextField *) sender{
if ([serverIP isFirstResponder]){
        if (self.view.frame.origin.y < 0){
            [self setViewMovedVertical:NO];
        }
    if (self.view.frame.origin.x != 0){
        [self setViewMovedHorizontal:NO];   
    }
    [serverIP resignFirstResponder];
}
}

上一个确保键盘未设置。

-(void) setViewMovedVertical:(BOOL)movedUp{
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.4];

CGRect rect = self.view.frame;

if (movedUp){
    rect.origin.y -= PORTRAIT_KEY_OFF;
    rect.size.height += PORTRAIT_KEY_OFF;
}
else{
    rect.origin.y += PORTRAIT_KEY_OFF;
    rect.size.height -= PORTRAIT_KEY_OFF;
}

self.view.frame = rect;

[UIView commitAnimations];
}

-(void) setViewMovedHorizontal:(BOOL)moved{
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.4]; 

CGRect rect = self.view.frame;

if (moved){
    if (leftLandscape)
        rect.origin.x -= LANDSCAPE_KEY_OFF;
    else
        rect.origin.x += LANDSCAPE_KEY_OFF;
}
else{
    if (leftLandscape)
        rect.origin.x += LANDSCAPE_KEY_OFF;
    else
        rect.origin.x -= LANDSCAPE_KEY_OFF;
    NSLog(@"after: %f",rect.origin.x);

}

self.view.frame = rect;

[UIView commitAnimations];

}

上一个将执行键盘的实际移动。我取消了调整大小，您可以将其添加回来。

- (void)willAnimateRotationToInterfaceOrientation:(UIInterfaceOrientation)x     
                                     duration:(NSTimeInterval)duration{

if (UIInterfaceOrientationIsPortrait(x)) {
    isPortrait = TRUE;  
} 
else { 
    isPortrait = FALSE;
            leftLandscape = (x == UIInterfaceOrientationLandscapeLeft); 
}

}

上一个将确保您正确设置变量 isPortrait 和 leftLandscape。

花了太长时间，但我终于完成!!!