UIAlertView 的簡單總結

例子：

UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"提示" message:selectTitle delegate:self cancelButtonTitle:@"取消" otherButtonTitles:@"確定", nil];
alert.alertViewStyle = UIAlertViewStylePlainTextInput;
// 設置輸入框的內容
[alert textFieldAtIndex:0].text = selectTitle;
// 用以傳遞選中的行索引
alert.tag = indexPath.row; //    
[alert show];

代理方法

// Called when a button is clicked. The view will be automatically dismissed after this call returns
- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex;
// Called when we cancel 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;

例如：

- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
    if (buttonIndex == 1) {
        // ……….
    }
}