操作表

最新推荐文章于 2022-06-14 10:13:36 发布

原创最新推荐文章于 2022-06-14 10:13:36 发布 · 305 阅读

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本文详细介绍如何在iOS应用中使用UIAlertController创建操作表，包括按钮的设置、操作表的展示及不同按钮类型的响应处理。



#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    CGRect screen = [[UIScreen mainScreen] bounds];
    //设置按钮
    UIButton* buttonActionSheet = [UIButton buttonWithType:UIButtonTypeSystem];
    [buttonActionSheet setTitle:@"Test操作表" forState:UIControlStateNormal];
    CGFloat buttonActionSheetWidth = 100;
    CGFloat buttonActionSheetHeight = 30;
    CGFloat buttonActionSheetLeftView = (screen.size.width - buttonActionSheetWidth)/2;
    CGFloat buttonActionSheetTopView = 260;
    buttonActionSheet.frame = CGRectMake(buttonActionSheetLeftView, buttonActionSheetTopView, buttonActionSheetWidth, buttonActionSheetHeight);
    [buttonActionSheet addTarget:self action:@selector(testActionSheet:) forControlEvents:UIControlEventTouchUpInside];
    [self.view addSubview:buttonActionSheet];
}

//在按钮的方法中设置操作表
-(void)testActionSheet:(id)sender{
    UIAlertController* actionSheetController = [[UIAlertController alloc] init];
    UIAlertAction* cancleAction = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:^(UIAlertAction *action){
        NSLog(@"Tap 取消 Button");
    }];
    UIAlertAction* destructiveAction = [UIAlertAction actionWithTitle:@"破坏性按钮" style:UIAlertActionStyleDestructive handler:^(UIAlertAction *action){
        NSLog(@"Tap 破坏性 Button");
    }];
    UIAlertAction* otherAction = [UIAlertAction actionWithTitle:@"新浪微博" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action){
        NSLog(@"Tap 新浪微博 Button");
    }];
    [actionSheetController addAction:cancleAction];
    [actionSheetController addAction:destructiveAction];
    [actionSheetController addAction:otherAction];
    
    //为ipad设备设置浮动层锚点
    actionSheetController.popoverPresentationController.sourceView = sender;
    //show
    [self presentViewController:actionSheetController animated:true completion:nil];
}


- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}


@end