大家好，又见面了，我是全栈君，今天给大家准备了Idea注册码。
iOS8数字键盘加左下角完成button的核心代码如下面：
- (void)addDoneButtonToNumPadKeyboard
{
UIButton *doneButton = [UIButton buttonWithType:UIButtonTypeCustom];
if (systemVersion < 8.0){
doneButton.frame = CGRectMake(0, 163, 106, 53);
}else{
doneButton.frame = CGRectMake(0, SCREEN_SIZE.height-53, 106, 53);
}
doneButton.tag = NUM_PAD_DONE_BUTTON_TAG;
doneButton.adjustsImageWhenHighlighted = NO;
[doneButton setTitle:@"完毕" forState:UIControlStateNormal];
[doneButton setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
[doneButton addTarget:self action:@selector(doneButton:) forControlEvents:UIControlEventTouchUpInside];
NSArray *windowArr = [[UIApplication sharedApplication] windows];
if (windowArr != nil && windowArr.count > 1){
UIWindow *needWindow = [windowArr objectAtIndex:1];
UIView *keyboard;
for(int i = 0; i < [needWindow.subviews count]; i++) {
keyboard = [needWindow.subviews objectAtIndex:i];
NSLog(@"%@", [keyboard description]);
if(([[keyboard description] hasPrefix:@"<UIPeripheralHostView"] == YES) || ([[keyboard description] hasPrefix:@"<UIKeyboard"] == YES) || ([[keyboard description] hasPrefix:@"<UIInputSetContainerView"] == YES)){
UIView *doneButtonView = [keyboard viewWithTag:NUM_PAD_DONE_BUTTON_TAG];
if (doneButtonView == nil){
[keyboard addSubview:doneButton];
}
}
}
}
}
-(void)removeDoneButtonFromNumPadKeyboard
{
UIView *doneButton = nil;
NSArray *windowArr = [[UIApplication sharedApplication] windows];
if (windowArr != nil && windowArr.count > 1){
UIWindow *needWindow = [windowArr objectAtIndex:1];
UIView *keyboard;
for(int i = 0; i < [needWindow.subviews count]; i++) {
keyboard = [needWindow.subviews objectAtIndex:i];
if(([[keyboard description] hasPrefix:@"<UIPeripheralHostView"] == YES) || ([[keyboard description] hasPrefix:@"<UIKeyboard"] == YES) || ([[keyboard description] hasPrefix:@"<UIInputSetContainerView"] == YES)){
doneButton = [keyboard viewWithTag:NUM_PAD_DONE_BUTTON_TAG];
if (doneButton != nil){
[doneButton removeFromSuperview];
}
}
}
}
}
注：
1.iOS8之后，键盘view的description变为以<UIInputSetContainerView开头，所以须要在推断的逻辑中加上这一项。
2.iOS8之后。键盘view的大小变成了整个屏幕的大小。所以须要对button加入的位置进行适配。
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