在我的 iPhone 应用程序中,有一个用于输入用户电话号码的文本字段。我尝试过数字键盘、电话键盘、小数点键盘等,但都不合适。
如何设置包含'-'键的数字小键盘?
最佳答案
你可以在你想添加的地方添加 - 你自己就像下面的代码将添加 brackets (
和 dash -
在文本字段中输入数字时。
#pragma mark - Phone Number Field Formatting
// Adopted from: http://stackoverflow.com/questions/6052966/phone-number-formatting
- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string
{
if (textField == self.mobileNumberField) {
int length = [self getLength:textField.text];
if(length == 10) {
if(range.length == 0)
return NO;
}
if(length == 3) {
NSString *num = [self formatNumber:textField.text];
textField.text = [NSString stringWithFormat:@"(%@) ",num];
if(range.length > 0)
textField.text = [NSString stringWithFormat:@"%@",[num substringToIndex:3]];
}
else if(length == 6) {
NSString *num = [self formatNumber:textField.text];
textField.text = [NSString stringWithFormat:@"(%@) %@-",[num substringToIndex:3],[num substringFromIndex:3]];
if(range.length > 0)
textField.text = [NSString stringWithFormat:@"(%@) %@",[num substringToIndex:3],[num substringFromIndex:3]];
}
}
return YES;
}
-(NSString*)formatNumber:(NSString*)mobileNumber
{
mobileNumber = [mobileNumber stringByReplacingOccurrencesOfString:@"(" withString:@""];
mobileNumber = [mobileNumber stringByReplacingOccurrencesOfString:@")" withString:@""];
mobileNumber = [mobileNumber stringByReplacingOccurrencesOfString:@" " withString:@""];
mobileNumber = [mobileNumber stringByReplacingOccurrencesOfString:@"-" withString:@""];
mobileNumber = [mobileNumber stringByReplacingOccurrencesOfString:@"+" withString:@""];
int length = [mobileNumber length];
if(length > 10) {
mobileNumber = [mobileNumber substringFromIndex: length-10];
}
return mobileNumber;
}
-(int)getLength:(NSString*)mobileNumber
{
mobileNumber = [mobileNumber stringByReplacingOccurrencesOfString:@"(" withString:@""];
mobileNumber = [mobileNumber stringByReplacingOccurrencesOfString:@")" withString:@""];
mobileNumber = [mobileNumber stringByReplacingOccurrencesOfString:@" " withString:@""];
mobileNumber = [mobileNumber stringByReplacingOccurrencesOfString:@"-" withString:@""];
mobileNumber = [mobileNumber stringByReplacingOccurrencesOfString:@"+" withString:@""];
int length = [mobileNumber length];
return length;
}
关于iphone - 为电话号码文本字段设置适当的键盘,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/16163795/