iOS Simple Countdown Verification code number of seconds process implementation

1. Timer = [Nstimer scheduledtimerwithtimeinterval:1.0 target:self selector: @selector (timerfiremethod:) userinfo:nil Repeats:yes];

2. Countdown Method Verification code implementation Countdown 60 seconds, 60 seconds after the start of the button transformation
4. -(void) Timerfiremethod: (Nstimer *) Thetimer {
6. if (seconds = = 1) {
8. [Thetimer invalidate];
10. seconds = 60;
12. [Validcodebtn_ settitle:@"Get Verification Code" Forstate:uicontrolstatenormal];
14. [Validcodebtn_ Settitlecolor:[uicolor Blackcolor] forstate:uicontrolstatenormal];
16. [Validcodebtn_ Setenabled:yes];
18. }else{
20. seconds--;
22. NSString *title = [NSString stringwithformat:msg_dynamic_code_wait,seconds];
24. [Validcodebtn_ Settitlecolor:[uicolor Graycolor] forstate:uicontrolstatenormal];
26. [Validcodebtn_ Setenabled:no];
28. [Validcodebtn_ Settitle:title Forstate:uicontrolstatenormal];
30. }
32. }
34. If the login succeeds, stop the reciprocal of the Verification Code,
36. -(void) Releasetimer {
38. if (timer) {
40. if ([Timer respondstoselector: @selector (isValid)]) {
42. if ([timer isValid]) {
44. [Timer invalidate];
46. seconds = 60;
48. }
50. }
52. }
54. }

iOS Simple Countdown Verification code number of seconds process implementation