[英]How to get UITextField values when button is clicked
我有这样的看法:
以及这些实现:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = @"Cell";
UITableViewCell *cell = [self.tableLogin dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault
reuseIdentifier:CellIdentifier] autorelease];
cell.accessoryType = UITableViewCellAccessoryNone;
cell.selectionStyle = UITableViewCellSelectionStyleNone;
if ([indexPath section] == 0) {
UITextField *textfield = [[UITextField alloc] initWithFrame:CGRectMake(110, 10, 165, 30)];
textfield.adjustsFontSizeToFitWidth = YES;
textfield.textColor = [UIColor blackColor];
textfield.backgroundColor = [UIColor whiteColor];
textfield.autocorrectionType = UITextAutocorrectionTypeNo;
textfield.autocapitalizationType = UITextAutocapitalizationTypeNone;
textfield.textAlignment = UITextAlignmentLeft;
textfield.clearButtonMode = UITextFieldViewModeNever;
textfield.delegate = self;
if ([indexPath row] == 0) {
textfield.tag = 0;
textfield.placeholder = @"your username";
textfield.keyboardType = UIKeyboardTypeDefault;
textfield.returnKeyType = UIReturnKeyNext;
}
else {
textfield.tag = 1;
textfield.placeholder = @"required";
textfield.keyboardType = UIKeyboardTypeDefault;
textfield.returnKeyType = UIReturnKeyDone;
textfield.secureTextEntry = YES;
}
[textfield setEnabled:YES];
[cell addSubview:textfield];
[textfield release];
}
}
if ([indexPath section] == 0) {
if ([indexPath row] == 0) {
cell.textLabel.text = @"Email";
}
else {
cell.textLabel.text = @"Password";
}
}
return cell;
}
- (BOOL)textFieldShouldReturn:(UITextField *)textField
{
switch (textField.tag) {
case 0:
self.username = textField.text;
break;
case 1:
self.password = textField.text;
break;
}
return true;
}
当用户单击登录按钮而不点击“完成”以关闭键盘时,它不会保存字段值。 我该如何解决这个问题?
两种选择:
保留对两个文本字段的引用并在“完成”按钮的操作方法中提取它们的text
值。
或者,注册UITextFieldTextDidChangeNotification
并在输入发生时捕获输入。
您可以使用- (void)textFieldDidEndEditing:(UITextField *)textField
并将您的值保存在那里,除了点击返回键。
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