CartKeyBoard.png
滚动视图防止遮挡以及退键盘
某控制器中含有tableView,其cell上放置textField(textView),点击后弹出键盘，并且自动滚动表格防止遮挡，完成要收键盘。
#define DDYSCREENW [UIScreen mainScreen].bounds.size.width
#define DDYSCREENH [UIScreen mainScreen].bounds.size.height
@interface NACartController ()
/** 展示表格 */
@property (nonatomic, strong) UITableView *tableView;
/** 用来回收键盘 */
@property (nonatomic, strong) UIView *keyboardView;
@end
@implementation NACartController
- (void)viewDidLoad {
[super viewDidLoad];
[self setupTabelView];
[self setupKeyBoardBackView];
[self addKeyboardNotifications];
}
#pragma mark 添加表格视图
- (void)setupTabelView
{
_tableView = [[UITableView alloc] initWithFrame:self.view.bounds];
_tableView.tableFooterView = [UIView new];
_tableView.delegate = self;
_tableView.dataSource = self;
_tableView.backgroundColor = ORDER_BACK_COLOR;
[self.view addSubview:_tableView];
}
#pragma mark - UITabelViewDataSource
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return self.groupArray.count;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
NAShoppingHeaderModel *headerModel = self.groupArray[section];
NSArray *goods = headerModel.goodsInfo;
return goods.count;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
NAShoppingCell *cell = [NAShoppingCell cellWithTableView:tableView];
cell.model = self.modelArray[indexPath.section][indexPath.row];
cell.cellType = ShoppingCellTypeDefault;
cell.delegate = self;
__weak __typeof__ (self)weakSelf = self;
cell.textFieldIndexPathBlock = ^() {
[weakSelf performSelector:@selector(scrollToCell:) withObject:indexPath afterDelay:0.3f];
};
return cell;
}
- (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section {
NAShoppingHeaderModel * headModel = self.groupArray[section];
NAShoppingHeader * headView = [[NAShoppingHeader alloc] initWithSection:section HeadModel:headModel];
headView.delegate = self;
return headView;
}
#pragma mark - UITabelViewDelegate
- (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section {
return 44;
}
- (CGFloat) tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath{
return 100;
}
#pragma mark - 键盘问题
#pragma mark 添加确定取消回收键盘视图
- (void)setupKeyBoardBackView {
_keyboardView = [[UIView alloc] initWithFrame:CGRectMake(0, DDYSCREENH, DDYSCREENW, 28)];
_keyboardView.backgroundColor = DDYColor(250, 250, 250, 1);
_keyboardView.hidden = YES;
UIButton *cancelBtn = [UIButton buttonWithType:UIButtonTypeCustom];
cancelBtn.titleLabel.font = [UIFont systemFontOfSize:13];
cancelBtn.contentMode = UIViewContentModeLeft;
[cancelBtn setTitle:@"取消" forState:UIControlStateNormal];
[cancelBtn setTitleColor:[UIColor lightGrayColor] forState:UIControlStateNormal];
cancelBtn.frame = CGRectMake(10, 0, 35, 28);
[cancelBtn addTarget:self action:@selector(handleCancel:) forControlEvents:UIControlEventTouchUpInside];
UIButton *okBtn = [UIButton buttonWithType:UIButtonTypeCustom];
okBtn.titleLabel.font = [UIFont systemFontOfSize:13];
okBtn.contentMode = UIViewContentModeRight;
okBtn.frame = CGRectMake(DDYSCREENW-45, 0, 35, 28);
[okBtn setTitle:@"确定" forState:UIControlStateNormal];
[okBtn setTitleColor:[UIColor blueColor] forState:UIControlStateNormal];
[okBtn addTarget:self action:@selector(handleOK:) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:_keyboardView];
[_keyboardView addSubview:cancelBtn];
[_keyboardView addSubview:okBtn];
[self.view bringSubviewToFront:_keyboardView];
}
#pragma mark 键盘通知
-(void)addKeyboardNotifications
{
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(keyboardWillShow:)
name:UIKeyboardWillShowNotification object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(keyboardWillHide:)
name:UIKeyboardWillHideNotification object:nil];
}
#pragma mark 键盘弹出
- (void)keyboardWillShow:(NSNotification *)notification
{
_keyboardView.hidden = NO;
NSDictionary* info = [notification userInfo];
CGFloat kbh = [[info objectForKey:UIKeyboardFrameEndUserInfoKey] CGRectValue].size.height;
[UIView animateWithDuration:0.2 animations:^{
_keyboardView.ddy_y = self.view.ddy_h-kbh-28;
_tableView.ddy_h = self.view.ddy_h-kbh-28;
}];
}
#pragma mark 键盘收回
- (void)keyboardWillHide:(NSNotification *)notification
{
[UIView animateWithDuration:0.2 animations:^{
_tableView.ddy_h = self.view.ddy_h-44;
_keyboardView.ddy_y = DDYSCREENH;
} completion:^(BOOL finished) {
_keyboardView.hidden = YES;
}];
}
#pragma mark 点击取消
- (void)handleCancel:(UIButton *)sender
{
[self.view endEditing:YES];
}
#pragma mark 点击确定
- (void)handleOK:(UIButton *)sender
{
[self.view endEditing:YES];
}
- (void)scrollToCell:(NSIndexPath*) path {
[_tableView scrollToRowAtIndexPath:path atScrollPosition:UITableViewScrollPositionNone animated:YES];
}
#pragma mark 移除通知
- (void)dealloc
{
_tableView.delegate = nil;
[[NSNotificationCenter defaultCenter] removeObserver:self];
}
cell利用textField的代理
// .h
typedef void (^indexPathOfTextFieldBlock)(void);
@property (nonatomic, copy) indexPathOfTextFieldBlock textFieldIndexPathBlock;
// .m
- (void)textFieldDidBeginEditing:(UITextField *)textField {
if (self.textFieldIndexPathBlock) {
self.textFieldIndexPathBlock();
}
}
滚动到底部
- (void)scrollToBottom
{
CGFloat yOffset = 0; //设置要滚动的位置 0最顶部 CGFLOAT_MAX最底部
if (self.tableView.contentSize.height > self.tableView.bounds.size.height) {
yOffset = self.tableView.contentSize.height - self.tableView.bounds.size.height;
}
[self.tableView setContentOffset:CGPointMake(0, yOffset) animated:NO];
}
滚动到fo'o'te'r
键盘类型
typedef NS_ENUM(NSInteger, UIKeyboardType) {
UIKeyboardTypeDefault, // Default type for the current input method.
UIKeyboardTypeASCIICapable, // Displays a keyboard which can enter ASCII characters, non-ASCII keyboards remain active
UIKeyboardTypeNumbersAndPunctuation, // Numbers and assorted punctuation.
UIKeyboardTypeURL, // A type optimized for URL entry (shows . / .com prominently).
UIKeyboardTypeNumberPad, // A number pad (0-9). Suitable for PIN entry.
UIKeyboardTypePhonePad, // A phone pad (1-9, *, 0, #, with letters under the numbers).
UIKeyboardTypeNamePhonePad, // A type optimized for entering a person's name or phone number.
UIKeyboardTypeEmailAddress, // A type optimized for multiple email address entry (shows space @ . prominently).
UIKeyboardTypeDecimalPad NS_ENUM_AVAILABLE_IOS(4_1), // A number pad with a decimal point.
UIKeyboardTypeTwitter NS_ENUM_AVAILABLE_IOS(5_0), // A type optimized for twitter text entry (easy access to @ #)
UIKeyboardTypeWebSearch NS_ENUM_AVAILABLE_IOS(7_0), // A default keyboard type with URL-oriented addition (shows space . prominently).
UIKeyboardTypeAlphabet = UIKeyboardTypeASCIICapable, // Deprecated
};
- UIKeyboardTypeDefault，常用于文本输入
UIKeyboardTypeDefault.png
- UIKeyboardTypeASCIICapable，常用于密码输入
UIKeyboardTypeASCIICapable.png
- UIKeyboardTypeNumbersAndPunctuation，和上一个键盘互相切换
UIKeyboardTypeNumbersAndPunctuation.png
- UIKeyboardTypeURL，适用于网址输入
UIKeyboardTypeURL.png
- UIKeyboardTypeNumberPad ，只有数字的数字键盘
UIKeyboardTypeNumberPad.png
- UIKeyboardTypePhonePad，可用于拨号的数字键盘，带*#+
UIKeyboardTypePhonePad.png
- UIKeyboardTypeNamePhonePad，字母及数字键盘，主次键盘分别如下：
UIKeyboardTypeNamePhonePad.png
UIKeyboardTypeNamePhonePad2.png
- UIKeyboardTypeEmailAddress，适用于邮件地址输入的键盘
UIKeyboardTypeEmailAddress.png
- UIKeyboardTypeDecimalPad，带“点”的数字键盘，可用于带有小数点的数字输入
UIKeyboardTypeDecimalPad.png
- UIKeyboardTypeTwitter
UIKeyboardTypeTwitter.png
- UIKeyboardTypeWebSearch，适用于网页搜索的键盘
UIKeyboardTypeWebSearch.png
大写类型
typedef NS_ENUM(NSInteger, UITextAutocapitalizationType) {
UITextAutocapitalizationTypeNone, // 不大写
UITextAutocapitalizationTypeWords, // 单词首字母
UITextAutocapitalizationTypeSentences, // 句子首字母
UITextAutocapitalizationTypeAllCharacters, // 全大写字母
};
键盘外观
typedef NS_ENUM(NSInteger, UIKeyboardAppearance) {
UIKeyboardAppearanceDefault, // Default apperance for the current input method.
UIKeyboardAppearanceDark NS_ENUM_AVAILABLE_IOS(7_0),
UIKeyboardAppearanceLight NS_ENUM_AVAILABLE_IOS(7_0),
UIKeyboardAppearanceAlert = UIKeyboardAppearanceDark, // Deprecated
};
拼写检查
typedef NS_ENUM(NSInteger, UITextSpellCheckingType) {
UITextSpellCheckingTypeDefault,
UITextSpellCheckingTypeNo,
UITextSpellCheckingTypeYes,
} NS_ENUM_AVAILABLE_IOS(5_0);
return类型
typedef NS_ENUM(NSInteger, UIReturnKeyType) {
UIReturnKeyDefault,
UIReturnKeyGo,
UIReturnKeyGoogle,
UIReturnKeyJoin,
UIReturnKeyNext,
UIReturnKeyRoute,
UIReturnKeySearch,
UIReturnKeySend,
UIReturnKeyYahoo,
UIReturnKeyDone,
UIReturnKeyEmergencyCall,
UIReturnKeyContinue NS_ENUM_AVAILABLE_IOS(9_0),
};