1、真机
如果使用了中文输入法，注册的keyboardWillShow会回调两次。第一次是键盘默认高度216，第二次则是加了keyboard的导航栏的高度。
2、模拟器
第一次弹出键盘没有问题
打印userinfo:
(lldb) po userInfo
{
UIKeyboardAnimationCurveUserInfoKey = 7;
UIKeyboardAnimationDurationUserInfoKey = "0.25";
UIKeyboardBoundsUserInfoKey = "NSRect: {{0, 0}, {414, 226}}";
UIKeyboardCenterBeginUserInfoKey = "NSPoint: {207, 849}";
UIKeyboardCenterEndUserInfoKey = "NSPoint: {207, 623}";
UIKeyboardFrameBeginUserInfoKey = "NSRect: {{0, 736}, {414, 226}}";
UIKeyboardFrameEndUserInfoKey = "NSRect: {{0, 510}, {414, 226}}";
UIKeyboardIsLocalUserInfoKey = 1;
}
此时我们去按123旁边的小圆球会出现如下的图：
打印userinfo:
(lldb) po userInfo
{
UIKeyboardAnimationCurveUserInfoKey = 7;
UIKeyboardAnimationDurationUserInfoKey = "0.25";
UIKeyboardBoundsUserInfoKey = "NSRect: {{0, 0}, {414, 271}}";
UIKeyboardCenterBeginUserInfoKey = "NSPoint: {207, 623}";
UIKeyboardCenterEndUserInfoKey = "NSPoint: {207, 600.5}";
UIKeyboardFrameBeginUserInfoKey = "NSRect: {{0, 510}, {414, 226}}";
UIKeyboardFrameEndUserInfoKey = "NSRect: {{0, 465}, {414, 271}}";
UIKeyboardIsLocalUserInfoKey = 1;
}
键盘被遮挡了。
总结:观察结果,发现了这个规律，打印一下时间,还有一个问题就是，中文键盘第一次启动的时候会回调两次。
keyboardRect = [self.view convertRect:keyboardRect fromView:nil];
所以去掉这句话即可
六. 使用封装的XXTextField
UITextView , UITextfield 中如果有keyboard的时候，需要一个自动弹起事件，以及弹起之后的content的偏移对父view的处理。如果每个页面都实现一次会非常复杂。这里我们介绍一种自动化的处理机制。在此之前，先介绍一下文字处理框架.最后给大家推荐一下我写的 XXTextField ,大家也可以在此基础上自己添加一些正则表达式。
1.解决uiview中的textfield 遮挡问题
_textfieldName.keyboardType = UIKeyboardTypeDefault;
_textfieldName.inputType = XXTextFieldTypeOnlyInt;
_textfieldName.maxLength = 5;
_textfieldPwd.inputType = XXTextFieldTypeForbidEmoj;
#import "XXKeyboardManager.h"
@interface XXCorrectVC ()<XXKeyboardManagerShowHiddenNotificationDelegate>
@end
@implementation XXCorrectVC
- (void)viewDidLoad {
[super viewDidLoad];
[[XXKeyboardManager sharedInstance] setDelegate:self];
// Do any additional setup after loading the view from its nib.
}
#pragma mark- KeyBoardShow/Hidden
- (void)showKeyboardWithRect:(CGRect)keyboardRect
withDuration:(CGFloat)animationDuration
{
CGFloat offset = self.textFieldCorrect.frame.size.height + self.textFieldCorrect.frame.origin.y - keyboardRect.origin.y;
if(offset < 0){
return;
}
[UIView animateWithDuration:animationDuration
delay:0.f
options:UIViewAnimationOptionCurveEaseInOut animations:^{
CGRect rect = CGRectMake(0.0f, -offset,self.view.frame.size.width,self.view.frame.size.height);
self.view.frame = rect;
} completion:^(BOOL finished) {
}];
}
- (void)hiddenKeyboardWithRect:(CGRect)keyboardRect
withDuration:(CGFloat)animationDuration
{
[UIView animateWithDuration:animationDuration
delay:0.f
options:UIViewAnimationOptionCurveEaseInOut animations:^{
self.textFieldCorrect.frame = self.view.bounds;
} completion:^(BOOL finished) {
}];
}
@end
