系統沒有textFeild 的相關當輸入內容改變時候的代理方法。。。所以我們自己加一個監聽來實現如下的效果
主要代碼如下:
[_code1F becomeFirstResponder];
[_code1F addTarget:self action:@selector(textFieldDidChange:) forControlEvents:UIControlEventEditingChanged];
[_code2F addTarget:self action:@selector(textFieldDidChange:) forControlEvents:UIControlEventEditingChanged];
[_code3F addTarget:self action:@selector(textFieldDidChange:) forControlEvents:UIControlEventEditingChanged];
[_code4F addTarget:self action:@selector(textFieldDidChange:) forControlEvents:UIControlEventEditingChanged];
[_code5F addTarget:self action:@selector(textFieldDidChange:) forControlEvents:UIControlEventEditingChanged];
[_code6F addTarget:self action:@selector(textFieldDidChange:) forControlEvents:UIControlEventEditingChanged];
-(void)textFieldDidChange :(UITextField *)textField{
if (textField.text.length == 1) {
if (textField == _code1F) {
[_code2F becomeFirstResponder];
}else if (textField == _code2F){
[_code3F becomeFirstResponder];
}else if (textField == _code3F){
[_code4F becomeFirstResponder];
}else if (textField == _code4F){
[_code5F becomeFirstResponder];
}else if (textField == _code5F){
[_code6F becomeFirstResponder];
}else{
[self.view endEditing:YES];
}
}
}