#pragma mark - 私有方法
-(void)openUrl:(NSString *)urlStr{//注意url中包含协议名称，iOS根据协议确定调用哪个应用，例如发送邮件是“sms://”其中“//”可以省略写成“sms:”(其他协议也是如此)NSURL *url=[NSURL URLWithString:urlStr];UIApplication *application=[UIApplication sharedApplication];if(![application canOpenURL:url]){NSLog(@"无法打开\"%@\"，请确保此应用已经正确安装.",url);return;}[[UIApplication sharedApplication] openURL:url];
}

    UIButton *button2 = [UIButton buttonWithType:UIButtonTypeCustom];button2.backgroundColor = [UIColor blueColor];[button2 setTitle:@"风好大" forState:UIControlStateNormal];[button2 setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];button2.titleLabel.textAlignment = NSTextAlignmentCenter;button2.frame = CGRectMake(100, 360, 100, 50);[button2 addTarget:self action:@selector(BtnClickTwo:) forControlEvents:UIControlEventTouchUpInside];[self.view addSubview:button2];-(void)BtnClickTwo:(id)sender
{//打电话/*NSString *phoneNumber = @"13592671307";NSString *url = [NSString stringWithFormat:@"telprompt://%@",phoneNumber];[self openUrl:url];*///发送短信/*NSString *phoneNumber = @"13592671307";NSString *url = [NSString stringWithFormat:@"sms://%@",phoneNumber];[self openUrl:url];*///发送邮件/*NSString *mailAddress = @"303265997@qq.com";NSString *url = [NSString stringWithFormat:@"mailto://%@",mailAddress];[self openUrl:url];*///浏览网页/*NSString *url = @"https:www.baidu.com";[self openUrl:url];*/}

-(void)BtnClickTwo:(id)sender
{NSURL *url = [NSURL URLWithString:@"appb:"];[[UIApplication sharedApplication]openURL:url];
}

-(BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation