学步园

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1. -(IBAction) buttonPressed:(id)sender{
2. myAlertView=[[UIAlertView alloc] initWithTitle:@"系统登入" message:nil delegate:self cancelButtonTitle:@"取消" otherButtonTitles:@"登入",nil];
3. [myAlertView show];
4. [myAlertView release];
6. }
8. - (void)willPresentAlertView:(UIAlertView *)alertView
9. {
10. CGRect frame = alertView.frame;
11. if( alertView==myAlertView )
12. {
13. frame.origin.y -= 120;
14. frame.size.height += 80;
15. alertView.frame = frame;
16. for( UIView * view in alertView.subviews )
17. {
18. //列举alertView中所有的对象
19. if( ![view isKindOfClass:[UILabel class]] )
20. {
21. //若不UILable则另行处理
22. if (view.tag==1)
23. {
24. //处理第一个按钮，也就是 CancelButton
25. CGRect btnFrame1 =CGRectMake(30, frame.size.height-65, 105, 40);
26. view.frame = btnFrame1;
28. } else if (view.tag==2){
29. //处理第二个按钮，也就是otherButton
30. CGRect btnFrame2 =CGRectMake(142, frame.size.height-65, 105, 40);
31. view.frame = btnFrame2;
32. }
33. }
34. }
36. //加入自订的label及UITextFiled
37. UILabel *lblaccountName=[[UILabel alloc] initWithFrame:CGRectMake( 30, 50,60, 30 )];;
38. lblaccountName.text=@"账号：";
39. lblaccountName.backgroundColor=[UIColor clearColor];
40. lblaccountName.textColor=[UIColor whiteColor];
42. UITextField *accoutName = [[UITextField alloc] initWithFrame: CGRectMake( 85, 50,160, 30 )];
43. accoutName.placeholder = @"账号名称";
44. accoutName.borderStyle=UITextBorderStyleRoundedRect;
47. UILabel *lblaccountPassword=[[UILabel alloc] initWithFrame:CGRectMake( 30, 85,60, 30 )];;
48. lblaccountPassword.text=@"密码：";
49. lblaccountPassword.backgroundColor=[UIColor clearColor];
50. lblaccountPassword.textColor=[UIColor whiteColor];
52. UITextField *accoutPassword = [[UITextField alloc] initWithFrame: CGRectMake( 85, 85,160, 30 )];
53. accoutPassword.placeholder = @"登入密码";
54. accoutPassword.borderStyle=UITextBorderStyleRoundedRect;
55. //输入的数据以星号显示（密码数据）
56. accoutPassword.secureTextEntry=YES;
58. [alertView addSubview:lblaccountName];
59. [alertView addSubview:accoutName];
60. [alertView addSubview:lblaccountPassword];
61. [alertView addSubview:accoutPassword];
62. }
63. }
65. - (void)dealloc {
66. [myAlertView release];
67. [super dealloc];
68. }

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