問(wèn)題1:切換顯隱時(shí)，光標(biāo)會(huì)錯(cuò)位的問(wèn)題

解決辦法1:

NSString*string =self.passwordTextField.text;//切換內(nèi)容后可以從新定位光標(biāo)位置

self.passwordTextField.text=@"";

self.passwordTextField.text= string;

解決辦法2:

textField.enabled =NO;//切換內(nèi)容后可以從新定位光標(biāo)位置效果同上

textField.secureTextEntry =YES;

textField.enabled =YES;

[textFieldbecomeFirstResponder];

問(wèn)題2:切換顯隱時(shí)，繼續(xù)輸入會(huì)將之前的內(nèi)容清空

解決辦法:

#pragma mark ---textField代理方法---

//為textfield從新賦值沒(méi)有此代理方法則切換顯隱后內(nèi)容會(huì)被清空

- (BOOL)textField:(UITextField*)textField shouldChangeCharactersInRange: (NSRange)range replacementString:(NSString*)string

{

if([stringisEqualToString:@" "]) { //不能輸入空格

returnNO;

}

//如果是刪除鍵并且內(nèi)容長(zhǎng)度大于0

if([stringisEqualToString:@""] &&self.passwordTextField.text.length>0) {

NSString*stringtemp = [self.passwordTextField.textsubstringToIndex:self.passwordTextField.text.length-1];

self.passwordTextField.text= stringtemp;

returnNO;

}

NSString*stringTemp = [NSStringstringWithFormat:@"%@%@",textField.text,string];

self.passwordTextField.text= stringTemp;

return NO;

}