在iOS8以前,我们都习惯性用UIAlertView去做提示框,iOS8以后,苹果提倡使用UIAlertController取代UIAlertView。
#define SYSTEM_VERSION [[UIDevice currentDevice].systemVersion floatValue]
if (SYSTEM_VERSION >= 8.0) { UIAlertController *alertCtrl = [UIAlertController alertControllerWithTitle:@"赎回成功" message:nil preferredStyle:UIAlertControllerStyleAlert]; UIAlertAction *okAction = [UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) { [self.navigationController popViewControllerAnimated:YES]; }]; [alertCtrl addAction:okAction]; [self presentViewController:alertCtrl animated:YES completion:nil]; }else{ //这个else一定要写,否则会导致在ios8一下的真机crash UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"赎回成功" message:nil delegate:self cancelButtonTitle:nil otherButtonTitles:@"确定", nil]; alert.tag = 998; [alert show]; }
#pragma mark-UIAlertViewDelegate -(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex { if (alertView.tag == 998) { [self.navigationController popViewControllerAnimated:YES]; } }
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原文地址:http://6951916.blog.51cto.com/6941916/1713503