如何打開通話製作/撥號NUMER視圖中打開時，按下按鈕？

Question

enter code here-(IBAction)Call:(id)sender{ 
//[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"tel://18005551234"]]; 
/*NSString *phoneStr = [[NSString alloc] initWithFormat:@"tel:%@",phoneNumber.text]; 
NSURL *phoneURL = [[NSURL alloc] initWithString:phoneStr]; 
[[UIApplication sharedApplication] openURL:phoneURL]; 
[phoneURL release]; 
[phoneStr release];*/ 
NSURL *url = [ [ NSURL alloc ] initWithString: @"tel:212-555-1234" ]; 
[[UIApplication sharedApplication] openURL:url]; 

}在上面的代碼 我使用各種方法，但沒有一個人工作。當我在函數上實現一個斷點時，它說這是超出範圍。這是什麼問題？

Answer 1

您應該刪除hypens - 從手機號碼，也括號「（」「）」「」。除數字外不應有特殊字符。

NSCharacterSet *specialCharSet = [NSCharacterSet characterSetWithCharactersInString:@")(-,"]; 
NSArray *components = [phoneNumber.text componentsSeparatedByCharactersInSet:specialCharSet]; 
NSString *phoneStr = [components componentsJoinedByString:@""]; 
phoneStr = [NSString stringWithFormat:@"tel:%@", phoneStr]; 
NSURL *url = [[NSURL alloc] initWithString:phoneStr]; 
[[UIApplication sharedApplication] openURL:url];