【发布时间】:2015-05-11 02:10:49
【问题描述】:
我正在寻求有关如何处理来自 iOS 8 设备 (iPhone 6) 的旋转通知的帮助,以便我可以为横向键盘加载不同的 xib。
我有几个纵向键盘,每个键盘都从其 xib 文件加载,所有这些都适用,但我想为横向布局加载另一个 xib 文件,但没有找到可行的解决方案。
我已尝试按照此处许多其他答案中的建议注册通知,但没有成功。
我已经尝试了这里推荐的所有方法:How to detect Orientation Change in Custom Keyboard Extension in iOS 8?,但是通过检测推荐的尺寸来确定我们是横向还是纵向仍然不起作用。
添加一些使用的代码:
const int keyboardHeight = 375;
const int landscapekeyboardHeight = 200;
- (void)updateViewConstraints {
[super updateViewConstraints];
NSLayoutConstraint *_heightConstraintforLandscape
= [NSLayoutConstraint constraintWithItem:self.view
attribute:NSLayoutAttributeHeight
relatedBy:NSLayoutRelationEqual
toItem:nil
attribute:NSLayoutAttributeNotAnAttribute
multiplier:0.0
constant:landscapekeyboardHeight];
NSLayoutConstraint *_heightConstraintforPortrait
= [NSLayoutConstraint constraintWithItem:self.view
attribute:NSLayoutAttributeHeight
relatedBy:NSLayoutRelationEqual
toItem:nil
attribute:NSLayoutAttributeNotAnAttribute
multiplier:0.0
constant:keyboardHeight];
if([UIScreen mainScreen].bounds.size.width < [UIScreen mainScreen].bounds.size.height)
{
// Portrait
[self.view removeConstraint: _heightConstraintforLandscape];
[self.view addConstraint: _heightConstraintforPortrait];
}
else
{
// Landscape
[self.view removeConstraint: _heightConstraintforPortrait];
[self.view addConstraint: _heightConstraintforLandscape];
self.inputView = (UIInputView*)self.LandscapeKeyboard;
}
}
我也尝试过使用方向更改通知
// Request to turn on accelerometer and begin receiving accelerometer events
[[UIDevice currentDevice] beginGeneratingDeviceOrientationNotifications];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(handleOrientationChangeWithNotification:)
name:UIDeviceOrientationDidChangeNotification
object:nil];
- (void)handleOrientationChangeWithNotification:(NSNotification *)notification {
// Respond to changes in device orientation
UIDeviceOrientation orientation = [[UIDevice currentDevice] orientation];
if (orientation == UIDeviceOrientationPortrait)
{
self.inputView = (UIInputView*)self.Keyboard;
}
else
{
self.inputView = (UIInputView*)self.LandscapeKeyboard;
}
}
我已经尝试了 Stack Overflow 上提出的大多数解决方案,但对于 iOS 8 自定义键盘没有任何效果。任何知道或见过可行的解决方案的人都会非常棒。
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标签: ios landscape-portrait custom-keyboard ios8-extension