iOS8之后提示框的变化

文丨清枫
在ios8之后UIAlertView和UIActionSheet变成了用UIAlertController表示首先在storyboard中创建一个按钮来测试

- (IBAction)Show:(id)sender {

NSString *title = NSLocalizedString(@"标题", nil);

NSString *message = NSLocalizedString(@"描述", nil);

NSString *cancelButtonTitle = NSLocalizedString(@"Cancel", nil);

NSString *otherButtonTitle = NSLocalizedString(@"OK", nil);
 UIAlertController *alertController = [UIAlertController alertControllerWithTitle:title message:message preferredStyle:UIAlertControllerStyleAlert];    
// Create the actions.

UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:cancelButtonTitle style:UIAlertActionStyleCancel handler:^(UIAlertAction *action) {

NSLog(@"The \\\\\\\\\\\\\\\\"Okay/Cancel\\\\\\\\\\\\\\\\" alert's cancel action occured.");

}];  
UIAlertAction *otherAction = [UIAlertAction actionWithTitle:otherButtonTitle style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {

NSLog(@"The \\\\\\\\\\\\\\\\"Okay/Cancel\\\\\\\\\\\\\\\\" alert's other action occured.");

}];    

// Add the actions.

[alertController addAction:cancelAction];

[alertController addAction:otherAction];    [self presentViewController:alertController animated:YES completion:nil];

}

以上代码的效果如图

Show1.png

如果要加入输入框，要在Create the actions之前加上

[alertController addTextFieldWithConfigurationHandler:^(UITextField *textField) {

[[NSNotificationCenter defaultCenter] addObserver:self

selector:@selector(handleTextFieldTextDidChangeNotification:) name:UITextFieldTextDidChangeNotification

object:textField];

textField.secureTextEntry = YES;

//可以设置颜色

//textField.backgroundColor = [UIColor orangeColor];

}];

效果如图

Show2.png

如果在底部弹出，代码如下

NSString *cancelButtonTitle = NSLocalizedString(@"Cancel", nil);

NSString *destructiveButtonTitle = NSLocalizedString(@"OK", nil);    UIAlertController *alertController = [UIAlertController alertControllerWithTitle:nil message:nil

preferredStyle:UIAlertControllerStyleActionSheet];  

  // Create the actions. 

   UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:cancelButtonTitle style:UIAlertActionStyleCancel handler:^(UIAlertAction *action) {   

     NSLog(@"The \\\\\\\\\\\\\\\\"Okay/Cancel\\\\\\\\\\\\\\\\" alert action sheet's cancel action occured."); 

   }];    

UIAlertAction *destructiveAction = [UIAlertAction actionWithTitle:destructiveButtonTitle style:UIAlertActionStyleDestructive handler:^(UIAlertAction *action) {  

      NSLog(@"The \\\\\\\\\\\\\\\\"Okay/Cancel\\\\\\\\\\\\\\\\" alert action sheet's destructive action occured."); 

   }];   

 // Add the actions. 

   [alertController addAction:cancelAction];    

   [alertController addAction:destructiveAction];  

  [self presentViewController:alertController animated:YES completion:nil];}

效果如图

Show3.png