我一直在尝试将一个开关连接到一个很好的SMS文本,我甚至能够保存交换机所处的状态。
但是现在我只需要在发送短信时保存状态,如果用户没有发送消息但是开关已经打开,则应该使用AlertView提醒他们。
到目前为止,我已经能够保存交换机离开它的状态并连接标签以表示它是否是" ON"或" OFF"在短信中。
- (void)viewDidLoad {
NSUserDefaults *standardDefaults = [NSUserDefaults standardUserDefaults];
self->switch1.on = ([[standardDefaults stringForKey:@"switchKey"]
isEqualToString:@"On"]) ? (YES) : (NO);
if(switch1.on){
label.text = @"ON";
NSUserDefaults *defults = [NSUserDefaults standardUserDefaults];
[defults setObject:label.text forKey:@"labelkey"];
[defults synchronize];
} else label.text = @"OFF"; {
NSUserDefaults *defults = [NSUserDefaults standardUserDefaults];
[defults setObject:label.text forKey:@"labelkey"];
[defults synchronize];
}
label.text = [[NSUserDefaults standardUserDefaults]objectForKey:@"labelkey"];
}
- (IBAction)switchChanged:(UISwitch *)sender {
NSUserDefaults *standardDefaults = [NSUserDefaults standardUserDefaults];
if (sender.on == 0) {
label.text = @"OFF";
[standardDefaults setObject:@"Off" forKey:@"switchKey"];
} else if (sender.on == 1) {
label.text = @"ON";
[standardDefaults setObject:@"On" forKey:@"switchKey"];
}
[standardDefaults synchronize];
}
这就是我发送短信的方式。
- (IBAction)sendRequest:(id)sender
{
MFMessageComposeViewController *messageVC = [[MFMessageComposeViewController alloc] init];
messageVC.body = [@[label.text] componentsJoinedByString:@""];
messageVC.recipients = @[_phoneNumber.text];
messageVC.messageComposeDelegate = self;
[self presentViewController:messageVC animated:NO completion:NULL];
}
答案 0 :(得分:1)
通过使用 MFMessageComposeViewControllerDelegate 委托,您可以找到用户发送或取消的消息。
- (void)messageComposeViewController:(MFMessageComposeViewController *)controller didFinishWithResult:(MessageComposeResult) result
{
switch (result) {
case MessageComposeResultCancelled:
//show alert here as per your requirement break;
case MessageComposeResultFailed:
{
UIAlertView *warningAlert = [[UIAlertView alloc] initWithTitle:@"Error" message:@"Failed to send SMS!" delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil];
[warningAlert show];
break;
}
case MessageComposeResultSent:
break;
default:
break;
}
[self dismissViewControllerAnimated:YES completion:nil];
}
参考此链接 - > Send sms