［iPhone开发之控件的使用］UIActionSheet的各种属性、方法及代理的使用

[c-sharp] view plaincopy

1. #import "ActionSheetTestViewController.h"  
2. @implementation ActionSheetTestViewController  
3. /* 
4. Tasks 
5.   
6. Creating Action Sheets 
7.     – initWithTitle:delegate:cancelButtonTitle:destructiveButtonTitle:otherButtonTitles:   
8.     Setting Properties 
9.     delegate  property   
10.     title  property   
11.     visible  property   
12.     actionSheetStyle  property  无例 
13. Configuring Buttons 
14.     – addButtonWithTitle:   
15.     numberOfButtons  property   
16.     – buttonTitleAtIndex:   
17.     cancelButtonIndex  property   
18.     destructiveButtonIndex  property   
19.     firstOtherButtonIndex  property   
20. Displaying 
21.     – showFromTabBar:   
22.     – showFromToolbar:   
23.     – showInView:   
24. Dismissing 
25.     – dismissWithClickedButtonIndex:animated:   
26. */  
27.   
28. // Implement viewDidLoad to do additional setup after loading the view, typically from a nib.  
29. - (void)viewDidLoad {  
30.     UILabel *numOfBtn = [[UILabel alloc]initWithFrame:CGRectMake(10.0, 10.0, 30.0, 30.0)];  
31.     UILabel *titleOfBtn = [[UILabel alloc]initWithFrame:CGRectMake(50.0, 10.0, 100.0, 30.0)];  
32.     UILabel *cancelBtnIndex = [[UILabel alloc]initWithFrame:CGRectMake(200.0, 10.0, 30.0, 30.0)];  
33.     UILabel *destructiveBtnIndex = [[UILabel alloc]initWithFrame:CGRectMake(10.0, 50.0, 30.0, 30.0)];  
34.     UILabel *firstOtherBtnIndex = [[UILabel alloc]initWithFrame:CGRectMake(50.0, 50.0, 30.0, 30.0)];  
35.     UIActionSheet *actionSheetTest = [[UIActionSheet alloc]initWithTitle:@"ActionSheetTest"   
36.                                 delegate:self  
37.                                 cancelButtonTitle:@"CancelButton"   
38.                                 destructiveButtonTitle:@"RedButton"   
39.                                 otherButtonTitles:@"OtherButton1",@"OtherButton2",nil];  
40.     //看actionSheet是否可见，这是一个只读属性  
41.     BOOL a = actionSheetTest.visible;  
42.     NSLog(@"%d",a);  
43.       
44.     //不考虑指定索引的按钮的动作，可以设置是否有动画  
45.     [actionSheetTest dismissWithClickedButtonIndex:0 animated:NO];  
46.       
47.     //设置标题  
48.     actionSheetTest.title = @"ActionSheetTitle";  
49.       
50.     //通过给定标题添加按钮  
51.     [actionSheetTest addButtonWithTitle:@"addButtonWithTitle"];  
52.       
53.     //按钮总数  
54.     numOfBtn.text = [NSString stringWithFormat:@"%d",actionSheetTest.numberOfButtons];  
55.       
56.     //获取指定索引的标题  
57.     titleOfBtn.text = [actionSheetTest buttonTitleAtIndex:4];  
58.       
59.     //获取取消按钮的索引  
60.     cancelBtnIndex.text = [NSString stringWithFormat:@"%d",actionSheetTest.cancelButtonIndex];  
61.       
62.     //获取红色按钮的索引  
63.     destructiveBtnIndex.text = [NSString stringWithFormat:@"%d",actionSheetTest.destructiveButtonIndex];  
64.       
65.     //获取第一个其他按钮的索引  
66.     firstOtherBtnIndex.text = [NSString stringWithFormat:@"%d",actionSheetTest.firstOtherButtonIndex];  
67.       
68.     //设置actionSheet出现的方式  
69.     [actionSheetTest showInView:self.view];//or [actionSheetTest showFromTabBar:] or [actionSheetTest showFromToolBar:]  
70.       
71.     [self.view addSubview:numOfBtn];  
72.     [self.view addSubview:titleOfBtn];  
73.     [self.view addSubview:cancelBtnIndex];  
74.     [self.view addSubview:destructiveBtnIndex];  
75.     [self.view addSubview:firstOtherBtnIndex];  
76.       
77.     [actionSheetTest release];  
78.     [numOfBtn release];  
79.     [titleOfBtn release];  
80.     [cancelBtnIndex release];  
81.     [destructiveBtnIndex release];  
82.     [firstOtherBtnIndex release];  
83.       
84.     [super viewDidLoad];  
85. }  
86.   
87. /* 
88. // Override to allow orientations other than the default portrait orientation. 
89. - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { 
90.     // Return YES for supported orientations 
91.     return (interfaceOrientation == UIInterfaceOrientationPortrait); 
92. } 
93. */  
94. - (void)didReceiveMemoryWarning {  
95.     // Releases the view if it doesn't have a superview.  
96.     [super didReceiveMemoryWarning];  
97.       
98.     // Release any cached data, images, etc that aren't in use.  
99. }  
100. - (void)viewDidUnload {  
101.     // Release any retained subviews of the main view.  
102.     // e.g. self.myOutlet = nil;  
103. }  
104.   
105. - (void)dealloc {  
106.     [super dealloc];  
107. }  
108.  
109. #pragma mark -- UIActionSheetDelegate --  
110. //根据被点击按钮的索引处理点击事件  
111. - (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex {  
112.     NSLog(@"clickedButtonAtIndex:%d",buttonIndex);  
113. }  
114. //ActionSheet已经消失时  
115. - (void)actionSheet:(UIActionSheet *)actionSheet didDismissWithButtonIndex:(NSInteger)buttonIndex {  
116.     NSLog(@"didDismissWithButtonIndex:%d",buttonIndex);  
117. }  
118. //ActionSheet即将消失时  
119. - (void)actionSheet:(UIActionSheet *)actionSheet willDismissWithButtonIndex:(NSInteger)buttonIndex {  
120.     NSLog(@"willDismissWithButtonIndex:%d",buttonIndex);  
121. }  
122. //  
123. - (void)actionSheetCancel:(UIActionSheet *)actionSheet {  
124.     NSLog(@"actionSheetCancel");  
125.       
126. }  
127. //ActionSheet已经显示时  
128. - (void)didPresentActionSheet:(UIActionSheet *)actionSheet {  
129.     NSLog(@"didPresentActionSheet%@",actionSheet);  
130. }  
131. //ActionSheet即将显示时  
132. - (void)willPresentActionSheet:(UIActionSheet *)actionSheet {  
133.     NSLog(@"willPresentActionSheet%@",actionSheet);  
134. }  

1. @end  

原文转载：http://blog.csdn.net/banyingli/article/details/6167561