How IOS replaces phone number middle 4 digits to "-" symbol _ios

The example of this article for you to share a special character replacement phone number of a part of the method, iOS use-number replacement phone number in the middle four, for your reference, the specific contents are as follows

One, the effect chart

Second, the Code

Rootviewcontroller.m

-(void) viewdidload
{
 [super viewdidload];
 Do no additional setup after loading the view.
 
 Telephone number
 Uilabel *tellabel = [[Uilabel alloc] Initwithframe:cgrectmake (M, m)];
 Tellabel.textcolor = [Uicolor graycolor];
 Tellabel.text = @ "13793333281";
 The intercept of the string
 nsstring *string = [Tellabel.text substringwithrange:nsmakerange (4,4)];
 Replacement of strings
 Tellabel.text = [Tellabel.text stringbyreplacingoccurrencesofstring:string withstring:@ "----"];
 [Self.view Addsubview:tellabel];
}

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