uiactionsheet 代理_UIActionSheet的各种属性、方法及代理的使用

Myth丶恋晨 2023-01-09 01:26 211阅读 0赞

\#import "ActionSheetTestViewController.h"

@implementation ActionSheetTestViewController

/\*

Tasks

Creating Action Sheets

– initWithTitle:delegate:cancelButtonTitle:destructiveButtonTitle:otherButtonTitles:

Setting Properties

delegate property

title property

visible property

actionSheetStyle property 无例

Configuring Buttons

– addButtonWithTitle:

numberOfButtons property

– buttonTitleAtIndex:

cancelButtonIndex property

destructiveButtonIndex property

firstOtherButtonIndex property

Displaying

– showFromTabBar:

– showFromToolbar:

– showInView:

Dismissing

– dismissWithClickedButtonIndex:animated:

\*/

// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.

\- (void)viewDidLoad \{

UILabel \*numOfBtn = \[\[UILabel alloc\]initWithFrame:CGRectMake(10.0, 10.0, 30.0, 30.0)\];

UILabel \*titleOfBtn = \[\[UILabel alloc\]initWithFrame:CGRectMake(50.0, 10.0, 100.0, 30.0)\];

UILabel \*cancelBtnIndex = \[\[UILabel alloc\]initWithFrame:CGRectMake(200.0, 10.0, 30.0, 30.0)\];

UILabel \*destructiveBtnIndex = \[\[UILabel alloc\]initWithFrame:CGRectMake(10.0, 50.0, 30.0, 30.0)\];

UILabel \*firstOtherBtnIndex = \[\[UILabel alloc\]initWithFrame:CGRectMake(50.0, 50.0, 30.0, 30.0)\];

UIActionSheet \*actionSheetTest = \[\[UIActionSheet alloc\]initWithTitle:@"ActionSheetTest"

delegate:self

cancelButtonTitle:@"CancelButton"

destructiveButtonTitle:@"RedButton"

otherButtonTitles:@"OtherButton1",@"OtherButton2",nil\];

//看actionSheet是否可见，这是一个只读属性

BOOL a = actionSheetTest.visible;

NSLog(@"%d",a);

//不考虑指定索引的按钮的动作，可以设置是否有动画

\[actionSheetTest dismissWithClickedButtonIndex:0 animated:NO\];

//设置标题

actionSheetTest.title = @"ActionSheetTitle";

//通过给定标题添加按钮

\[actionSheetTest addButtonWithTitle:@"addButtonWithTitle"\];

//按钮总数

numOfBtn.text = \[NSString stringWithFormat:@"%d",actionSheetTest.numberOfButtons\];

//获取指定索引的标题

titleOfBtn.text = \[actionSheetTest buttonTitleAtIndex:4\];

//获取取消按钮的索引

cancelBtnIndex.text = \[NSString stringWithFormat:@"%d",actionSheetTest.cancelButtonIndex\];

//获取红色按钮的索引

destructiveBtnIndex.text = \[NSString stringWithFormat:@"%d",actionSheetTest.destructiveButtonIndex\];

//获取第一个其他按钮的索引

firstOtherBtnIndex.text = \[NSString stringWithFormat:@"%d",actionSheetTest.firstOtherButtonIndex\];

//设置actionSheet出现的方式

\[actionSheetTest showInView:self.view\];//or \[actionSheetTest showFromTabBar:\] or \[actionSheetTest showFromToolBar:\]

\[self.view addSubview:numOfBtn\];

\[self.view addSubview:titleOfBtn\];

\[self.view addSubview:cancelBtnIndex\];

\[self.view addSubview:destructiveBtnIndex\];

\[self.view addSubview:firstOtherBtnIndex\];

\[actionSheetTest release\];

\[numOfBtn release\];

\[titleOfBtn release\];

\[cancelBtnIndex release\];

\[destructiveBtnIndex release\];

\[firstOtherBtnIndex release\];

\[super viewDidLoad\];

/\*

// Override to allow orientations other than the default portrait orientation.

\- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation \{

// Return YES for supported orientations

return (interfaceOrientation == UIInterfaceOrientationPortrait);

\*/

\- (void)didReceiveMemoryWarning \{

// Releases the view if it doesn't have a superview.

\[super didReceiveMemoryWarning\];

// Release any cached data, images, etc that aren't in use.

\- (void)viewDidUnload \{

// Release any retained subviews of the main view.

// e.g. self.myOutlet = nil;

\- (void)dealloc \{

\[super dealloc\];

\#pragma mark -- UIActionSheetDelegate --

//根据被点击按钮的索引处理点击事件

\- (void)actionSheet:(UIActionSheet \*)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex \{

NSLog(@"clickedButtonAtIndex:%d",buttonIndex);

//ActionSheet已经消失时

\- (void)actionSheet:(UIActionSheet \*)actionSheet didDismissWithButtonIndex:(NSInteger)buttonIndex \{

NSLog(@"didDismissWithButtonIndex:%d",buttonIndex);

//ActionSheet即将消失时

\- (void)actionSheet:(UIActionSheet \*)actionSheet willDismissWithButtonIndex:(NSInteger)buttonIndex \{

NSLog(@"willDismissWithButtonIndex:%d",buttonIndex);

\- (void)actionSheetCancel:(UIActionSheet \*)actionSheet \{

NSLog(@"actionSheetCancel");

//ActionSheet已经显示时

\- (void)didPresentActionSheet:(UIActionSheet \*)actionSheet \{

NSLog(@"didPresentActionSheet%@",actionSheet);

//ActionSheet即将显示时

\- (void)willPresentActionSheet:(UIActionSheet \*)actionSheet \{

NSLog(@"willPresentActionSheet%@",actionSheet);

@end

uiactionsheet 代理_UIActionSheet的各种属性、方法及代理的使用

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