iOS学习笔记－－－UIAlertView 使用及代理

UIAlertView信息提示框：

[[[UIAlertView alloc] initWithTitle:@"Title" message:@"message" delegate:self cancelButtonTitle:@"取消" otherButtonTitles:@"确定", @"你猜", nil] show];

代理方法（UIAlertViewDelegate）：

// Called when a button is <span style="color:#ff0000;">clicked</span>. The view will be automatically dismissed after this call returns- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex;// Called when we <span style="color:#ff0000;">cancel</span> a view (eg. the user clicks the Home button). This is not called when the user clicks the cancel button.// If not defined in the delegate, we simulate a click in the cancel button- (void)alertViewCancel:(UIAlertView *)alertView;- (void)willPresentAlertView:(UIAlertView *)alertView;  // before animation and showing view- (void)didPresentAlertView:(UIAlertView *)alertView;  // after animation- (void)alertView:(UIAlertView *)alertView willDismissWithButtonIndex:(NSInteger)buttonIndex; // before animation and hiding view- (void)alertView:(UIAlertView *)alertView didDismissWithButtonIndex:(NSInteger)buttonIndex;  // after animation// Called after edits in any of the default fields added by the style- (BOOL)alertViewShouldEnableFirstOtherButton:(UIAlertView *)alertView;