iPadのKeyboard Notificationの動作のまとめ

キーボードの動作によってNotificationはどう変わるか

以下がどのタイミングで呼ばれるか検証した。

• UIKeyboardWillShowNotification
• UIKeyboardWillHideNotification
• UIKeyboardWillChangeFrameNotification

Dock(通常)のKeyboardを起動するとき

• UIKeyboardWillChangeFrameNotification
• UIKeyboardWillShowNotification

Split / UnDockのKeyboardを起動するとき

• UIKeyboardWillChangeFrameNotification

Dock(通常)のKeyboardをSplit / UnDockするとき

• UIKeyboardWillChangeFrameNotification
• UIKeyboardWillHideNotification

SplitのKeyboardをDock&Mergeするとき

• UIKeyboardWillChangeFrameNotification
• UIKeyboardWillChangeFrameNotification
• UIKeyboardWillShowNotification

SplitのKeyboardをMergeするとき

• UIKeyboardWillChangeFrameNotification

UnDockのKeyboardをSplitするとき

• UIKeyboardWillChangeFrameNotification

UnDockのKeyboardをDockするとき

• UIKeyboardWillChangeFrameNotification
• UIKeyboardWillShowNotification

Dock(通常)のKeyboardを閉じるとき

• UIKeyboardWillChangeFrameNotification
• UIKeyboardWillShowNotification

Split / UnDockのKeyboardを閉じるとき

• UIKeyboardWillChangeFrameNotification

Split Keyboardを動かす

• UIKeyboardWillChangeFrameNotification

Split Keyboardを動かしている途中でframeの最下部まで到達する

• UIKeyboardWillChangeFrameNotification(動かす)
• UIKeyboardWillChangeFrameNotification(splitからDockに切り替わり)
• UIKeyboardWillShowNotification

キーボードを開いた状態で回転させる

• UIKeyboardWillChangeFrameNotification

分割キーボードが開いたことの認識

- (CGRect)wtd_convertedKeyboardFrameBeginInView:(UIView *)view
{
    return [view convertRect:[[[self userInfo] objectForKey:UIKeyboardFrameBeginUserInfoKey] CGRectValue] fromView:nil];;
}

- (CGRect)wtd_convertedKeyboardFrameEndInView:(UIView *)view
{
    return [view convertRect:[[[self userInfo] objectForKey:UIKeyboardFrameEndUserInfoKey] CGRectValue] fromView:nil];
}

- (BOOL)wtd_splitOrUnDockKeyboardIsShowingInView:(UIView *)view
{
    CGRect keyboardFrameBegin = [self wtd_convertedKeyboardFrameBeginInView:(UIView *)view];
    CGRect keyboardFrameEnd = [self wtd_convertedKeyboardFrameEndInView:(UIView *)view];

    return keyboardFrameEnd.size.height != 0 && keyboardFrameBegin.origin.y == [[self class] visibleHeight] && keyboardFrameEnd.origin.y + keyboardFrameEnd.size.height < [[self class] visibleHeight];
}

- (BOOL)wtd_splitOrUnDockKeyboardIsHidingInView:(UIView *)view
{
    CGRect keyboardFrameBegin = [self wtd_convertedKeyboardFrameBeginInView:(UIView *)view];
    CGRect keyboardFrameEnd = [self wtd_convertedKeyboardFrameEndInView:(UIView *)view];

    return keyboardFrameEnd.size.height != 0 && keyboardFrameEnd.origin.y == [[self class] visibleHeight] && keyboardFrameBegin.origin.y + keyboardFrameBegin.size.height < [[self class] visibleHeight];
}

#pragma mark - Private

+ (CGFloat)visibleHeight
{
    return IS_LANDSCAPE() ? [[UIScreen mainScreen] bounds].size.width : [[UIScreen mainScreen] bounds].size.height;
}

DockからUnDock / Splitされることの認識

• いい方法が分からなかった。。

参考

• http://stackoverflow.com/questions/10749311/ipad-split-keyboard