XZ_iOS中textField的键盘弹出和回收导致的界面上移和下移
例如，有一个填写姓名的输入框，当点击姓名下方的输入框时，键盘弹出，界面上移；当点击提交的时候，键盘回收，界面下移；
XZSignUpView.h中
@interface XZSignUpView : UIView
// 点击提交按钮
@property (nonatomic,copy)void(^blockSubmitBtn)(NSString *,NSString *);
@property (nonatomic,copy)void(^blockCloseBtn)(UIButton *);
@end
#import "XZSignUpView.h"
@interface XZSignUpView()
/** 姓名输入框 */
@property (nonatomic,strong)UITextField *textName;
/** 背景图 */
@property (nonatomic,strong)UIView *viewBackGround;
/** 手机号输入框 */
@property (nonatomic,strong)UITextField *textPhoneNumber;
/** 提交按钮 */
@property (nonatomic,strong)UIButton *btnSubmit;
@end
@implementation XZSignUpView
- (instancetype)initWithFrame:(CGRect)frame{
if (self = [superinitWithFrame:frame]) {
[selfsetUpSignUpView];
//添加监听，当键盘出现时收到消息
[[NSNotificationCenterdefaultCenter]addObserver:selfselector:@selector(keyboardWillShow:)name:UIKeyboardWillShowNotificationobject:nil];
//添加监听，当键盘退出时收到消息
[[NSNotificationCenterdefaultCenter]addObserver:selfselector:@selector(keyboardWillHide:)name:UIKeyboardWillHideNotificationobject:nil];
}
return self;
}
// 当键盘出现或改变时调用
- (void)keyboardWillShow:(NSNotification *)aNotification
{
// 获取键盘的高度
NSDictionary *userInfo = [aNotification userInfo];
NSValue *aValue = [userInfoobjectForKey:UIKeyboardFrameEndUserInfoKey];
CGRect keyboardRect = [aValue CGRectValue];
int height = keyboardRect.size.height;
if (self.textName.text.length ==0) {//键盘弹出
self.viewBackGround.frame = CGRectMake(0,KProjectScreenHeight-height-300,KProjectScreenWidth,300);
}else{
CGRect rect =CGRectMake(0,KProjectScreenHeight -self.viewBackGround.frame.size.height-height,KProjectScreenWidth,self.viewBackGround.frame.size.height);
self.viewBackGround.frame = rect;
}
}
// 当键退出时调用
- (void)keyboardWillHide:(NSNotification *)aNotification
{
if (self.textName.text.length ==0) {
self.viewBackGround.frame = CGRectMake(0,KProjectScreenHeight-300,KProjectScreenWidth,300);
}else{
CGRect rect =CGRectMake(0,KProjectScreenHeight -self.viewBackGround.frame.size.height,KProjectScreenWidth,self.viewBackGround.frame.size.height);
self.viewBackGround.frame = rect;
}
}
- (void)setUpSignUpView {
/** 背景图 */
UIView *viewBackGround = [[UIViewalloc]init];
[self addSubview:viewBackGround];
[viewBackGround mas_makeConstraints:^(MASConstraintMaker *make) {
make.left.equalTo(self.mas_left);
make.right.equalTo(self.mas_right);
make.bottom.equalTo(self.mas_bottom);
make.height.equalTo(@300);
}];
self.viewBackGround = viewBackGround;
viewBackGround.backgroundColor = [UIColorwhiteColor];
/** 关闭按钮 */
UIButton *btnClose = [UIButtonbuttonWithType:UIButtonTypeSystem];
[viewBackGround addSubview:btnClose];
[btnClose mas_makeConstraints:^(MASConstraintMaker *make) {
make.top.equalTo(viewBackGround.mas_top).offset(20);
make.right.equalTo(viewBackGround.mas_right).offset(-20);
make.height.and.width.equalTo(@18);
}];
[btnClose addTarget:selfaction:@selector(didClickCloseButton:)forControlEvents:UIControlEventTouchUpInside];
[btnClose setBackgroundImage:[UIImageimageNamed:@"签到关闭icon_03"]forState:UIControlStateNormal];
/** 姓名 */
UILabel *labelName = [[UILabelalloc]init];
[viewBackGround addSubview:labelName];
[labelName mas_makeConstraints:^(MASConstraintMaker *make) {
make.left.equalTo(self.mas_left).offset(20);
make.top.equalTo(btnClose.mas_bottom).offset(10);
}];
labelName.text = @"姓名";
/** 姓名输入框 */
UITextField *textName = [[UITextFieldalloc]init];
[viewBackGround addSubview:textName];
[textName mas_makeConstraints:^(MASConstraintMaker *make) {
make.left.equalTo(labelName.mas_left);
make.top.equalTo(labelName.mas_bottom).offset(5);
make.right.equalTo(btnClose.mas_right);
make.height.equalTo(@45);
}];
self.textName = textName;
textName.borderStyle =UITextBorderStyleRoundedRect;
/** 手机号 */
UILabel *labelPhoneNumber = [[UILabelalloc]init];
[viewBackGround addSubview:labelPhoneNumber];
[labelPhoneNumber mas_makeConstraints:^(MASConstraintMaker *make) {
make.left.equalTo(labelName.mas_left);
make.top.equalTo(textName.mas_bottom).offset(20);
}];
labelPhoneNumber.text = @"手机号";
/** 手机号输入框 */
UITextField *textPhoneNumber = [[UITextFieldalloc]init];
[viewBackGround addSubview:textPhoneNumber];
[textPhoneNumber mas_makeConstraints:^(MASConstraintMaker *make) {
make.left.equalTo(labelName.mas_left);
make.top.equalTo(labelPhoneNumber.mas_bottom).offset(5);
make.right.equalTo(btnClose.mas_right);
make.height.equalTo(textName.mas_height);
}];
self.textPhoneNumber = textPhoneNumber;
textPhoneNumber.borderStyle =UITextBorderStyleRoundedRect;
/** 提交按钮 */
UIButton *btnSubmit = [UIButtonbuttonWithType:UIButtonTypeCustom];
[viewBackGround addSubview:btnSubmit];
[btnSubmit mas_makeConstraints:^(MASConstraintMaker *make) {
make.left.equalTo(textPhoneNumber.mas_left);
make.bottom.equalTo(self.mas_bottom).offset(-15);
make.right.equalTo(textPhoneNumber.mas_right);
make.height.equalTo(textName.mas_height);
}];
self.btnSubmit = btnSubmit;
[btnSubmit addTarget:selfaction:@selector(didClickSubmitButton:)forControlEvents:UIControlEventTouchUpInside];
[btnSubmit.titleLabelsetFont:[UIFontsystemFontOfSize:17weight:2]];
[btnSubmit setBackgroundColor:XZColor(14,93,210)];
btnSubmit.layer.masksToBounds =YES;
btnSubmit.layer.cornerRadius =5.0f;
//
}
// 点击关闭按钮
- (void)didClickCloseButton:(UIButton *)button {
[selfremoveFromSuperview];
if (self.blockCloseBtn) {
self.blockCloseBtn(button);
}
}
// 点击提交按钮
- (void)didClickSubmitButton:(UIButton *)button {
[selfendEditing:YES];
if (self.blockSubmitBtn) {
self.blockSubmitBtn(self.textName.text,self.textPhoneNumber.text);
}
NSLog(@"%@,%@",self.textName.text,self.textPhoneNumber.text);
// 发送成功之后清空
// self.textName.text = nil;
// self.textPhoneNumber.text = nil;
self.viewBackGround.frame = CGRectMake(0,KProjectScreenHeight-300,KProjectScreenWidth,300);
}
- (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event {
[selfendEditing:YES];
}
@end
- (XZSignUpView *)signUpView {
if (!_signUpView) {
_signUpView = [[XZSignUpViewalloc]initWithFrame:[UIScreenmainScreen].bounds];
__weak __typeof(&*self)weakSelf =self;
_signUpView.btnTitle =@"提交";
_signUpView.blockCloseBtn = ^(UIButton *button) {
[weakSelf.viewBackGround removeFromSuperview];
};
}
return_signUpView;
}
UIWindow *keyWindow = [UIApplicationsharedApplication].keyWindow;
UIView *viewBackGround = [[UIViewalloc]initWithFrame:keyWindow.frame];
viewBackGround.backgroundColor = [UIColorblackColor];
viewBackGround.alpha = 0.6;
[keyWindow addSubview:self.signUpView];