TextView judgment format, user name, verification code

#pragma mark- detect illegal characters

Names can only be made up of Chinese, letters or numbers

-(BOOL) Isvalidateuser: (nsstring *) text

{

nsstring * regex = @ "^[a-za-z0-9_\u4e00-\u9fa5]+$";

Nspredicate *pred = [nspredicate predicatewithformat:@ "self MATCHES%@", regex];

return [pred evaluatewithobject:text];

}

Verification code, from 0 to 9, 6 digits

-(BOOL) Isvalidatenumber: (nsstring *) text

{

NSString * regex = @ "^[0-9]{6}";

Nspredicate *pred = [nspredicate predicatewithformat:@ "self MATCHES%@", regex];

return [pred evaluatewithobject:text];

}

In the Uialert method.

-(void) Alertview: (uialertview *) Alertview clickedbuttonatindex: (nsinteger) buttonindex

{

XLOG (@ "%d", buttonindex);

if (Buttonindex = = 1)

{

// get input box

Uitextfield *tf=[alertview Textfieldatindex:0];

if ([TF. Text Trimwhitespace]. length <= 0)

{

[Mthint Toast:@ " cannot be empty " toview:self. View displaytime:2.0f];

return;

}

if (![ self isvalidateuser:tf. Text])

{

[Mthint Toast:@ " name can only be made up of Chinese, letters, or numbers " toview: Self. View displaytime:2.0f];

return;

}

if (TF. Text. length >= )

{

[Mthint Toast:@ ' name needs to be less than ten characters ' toview: Self. View displaytime:2];

return;

}

[titlevalues replaceobjectatindex:1 withobject: Tf.text];

namevalue = tf. text;

XLOG (@ "%@", TF. text);

[_tableview reloaddata];

}

}

TextView judgment format, user name, verification code