In my application i wan't to move/animate my ViewController's view to upward direction after appearance of keyboard over UITextField.
and this must support for all orientation.i.e:
UIInterfaceOrientationPortrait
UIInterfaceOrientationPortraitUpsideDown
UIInterfaceOrientationLandscapeLeft
UIInterfaceOrientationLandscapeRight.
For UIInterfaceOrientationPortrait my code is working fine as shown below:
But for UIInterfaceOrientationPortraitUpsideDown and UIInterfaceOrientationLandscapeLeft it is not working. please see below screenshots:
For UIInterfaceOrientationLandscapeLeft view moves towards right side instead of upward side.
For UIInterfaceOrientationPortraitUpsideDown view moves towards down side instead of upward side.
This is only issue in iOS 7. I have checked this in iOS 8, it is working fine.
I have used below code for animating UIView on keyboard appearance:
static const CGFloat KEYBOARD_ANIMATION_DURATION = 0.3;
static const CGFloat MINIMUM_SCROLL_FRACTION = 0.2;
static const CGFloat MAXIMUM_SCROLL_FRACTION = 0.8;
static const CGFloat PORTRAIT_KEYBOARD_HEIGHT = 264;
static const CGFloat LANDSCAPE_KEYBOARD_HEIGHT = 352;
-(void) textFieldDidBeginEditing:(UITextField *)textField
{
CGRect textFieldRect = [self.view.window convertRect:textField.bounds fromView:textField];
CGRect viewRect = [self.view.window convertRect:self.view.bounds fromView:self.view];
CGFloat midline = textFieldRect.origin.y + 0.5 * textFieldRect.size.height;
CGFloat numerator = midline - viewRect.origin.y - MINIMUM_SCROLL_FRACTION * viewRect.size.height;
CGFloat denominator = (MAXIMUM_SCROLL_FRACTION - MINIMUM_SCROLL_FRACTION) * viewRect.size.height;
CGFloat heightFraction = numerator / denominator;
if (heightFraction < 0.0)
{
heightFraction = 0.0;
}
else if (heightFraction > 1.0)
{
heightFraction = 1.0;
}
UIInterfaceOrientation orientation =
[[UIApplication sharedApplication] statusBarOrientation];
if (orientation == UIInterfaceOrientationPortrait ||
orientation == UIInterfaceOrientationPortraitUpsideDown)
{
animatedDistance = floor(PORTRAIT_KEYBOARD_HEIGHT * heightFraction);
}
else
{
animatedDistance = floor(LANDSCAPE_KEYBOARD_HEIGHT * heightFraction);
}
if(self.view.frame.origin.y != 0.000000)
{
self.view.frame = CGRectMake(self.view.frame.origin.x,0.0,self.view.frame.size.width,self.view.frame.size.height);
}
CGRect viewFrame = self.view.frame;
viewFrame.origin.y -= animatedDistance;
NSLog(@"View frame y pos did start: %f ",animatedDistance);
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationBeginsFromCurrentState:YES];
[UIView setAnimationDuration:KEYBOARD_ANIMATION_DURATION];
[self.view setFrame:viewFrame];
[UIView commitAnimations];
}
-(void) textFieldDidEndEditing:(UITextField *)textField
{
CGRect viewFrame = self.view.frame;
viewFrame.origin.y += animatedDistance;
NSLog(@"View frame y pos did end: %f ",animatedDistance);
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationBeginsFromCurrentState:YES];
[UIView setAnimationDuration:KEYBOARD_ANIMATION_DURATION];
[self.view setFrame:viewFrame];
[UIView commitAnimations];
}
Thanks