Chr*_*men 15 keyboard keyboard-shortcuts uiresponder ios uikeycommand
是否可以连续按键？
我正在使用keyCommands:拦截在外部键盘上按下的箭头键,但每次按下我只能拨打1个电话.我希望只要按下按键,每隔X毫秒就可以进行多次调用,或者在按下按键和释放按键时调用.
这是我的代码:
- (NSArray *)keyCommands
{
UIKeyCommand *upArrow = [UIKeyCommand keyCommandWithInput:UIKeyInputUpArrow
modifierFlags:0
action:@selector(upArrow:)];
UIKeyCommand *downArrow = [UIKeyCommand keyCommandWithInput:UIKeyInputDownArrow
modifierFlags:0
action:@selector(downArrow:)];
UIKeyCommand *leftArrow = [UIKeyCommand keyCommandWithInput:UIKeyInputLeftArrow
modifierFlags:0
action:@selector(leftArrow:)];
UIKeyCommand *rightArrow = [UIKeyCommand keyCommandWithInput:UIKeyInputRightArrow
modifierFlags:0
action:@selector(rightArrow:)];
UIKeyCommand *leftArrowCmd = [UIKeyCommand keyCommandWithInput:UIKeyInputLeftArrow
modifierFlags:UIKeyModifierCommand
action:@selector(leftArrowCmd:)];
UIKeyCommand *rightArrowCmd = [UIKeyCommand keyCommandWithInput:UIKeyInputRightArrow
modifierFlags:UIKeyModifierCommand
action:@selector(rightArrowCmd:)];
UIKeyCommand *lCmd = [UIKeyCommand keyCommandWithInput:@"l"
modifierFlags:UIKeyModifierCommand
action:@selector(lCmd:)];
UIKeyCommand *rCmd = [UIKeyCommand keyCommandWithInput:@"r"
modifierFlags:UIKeyModifierCommand
action:@selector(rCmd:)];
UIKeyCommand *mCmd = [UIKeyCommand keyCommandWithInput:@"m"
modifierFlags:UIKeyModifierCommand
action:@selector(mCmd:)];
return @[upArrow, downArrow, leftArrow, rightArrow, leftArrowCmd, rightArrowCmd, lCmd, rCmd, mCmd];
}