使用StoryBoard建立多个UITextField，比如输入账号、密码。Enter键的响应，有这样的一般需求 Field1->Field2->...->FieldN->Submit。
在StoryBoard中，各个UITextField，按照顺序与IBOutletCollection建立连接，并且将delegate与ViewController进行关联
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| @interface ViewController ()<UITextFieldDelegate>
@property (nonatomic, strong) IBOutletCollection(UITextField) NSArray *textFieldCollection;
@end
@implementation ViewController
- (BOOL)textFieldShouldReturn:(UITextField *)textField
{
NSUInteger index = [_textFieldCollection indexOfObject:textField];
if(index != NSNotFound)
{
if(index == _textFieldCollection.count - 1)
{
[textField resignFirstResponder];
[self onLastTextFieldReturn];
}
else
{
UITextField *nextField = _textFieldCollection[index + 1];
[nextField becomeFirstResponder];
}
return NO;
}
return YES;
}
- (void)onLastTextFieldReturn
{
}
@end
|