代码为
UIAlertView *alert = [[UIAlertView alloc]initWithTitle:@"" message:@"感谢你对我们提出的意见或建议,你的支持就是我们进步的动力!" delegate:self cancelButtonTitle:@"我知道了" otherButtonTitles:nil, nil];[alert show];-(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{ if (buttonIndex==0) { [self backForward]; }}
效果如图
这是因为alertView的动画和键盘动画起冲突了
解决方法分为两种①用UIAlertController,适用于ios8以后②若还是想用UIAlertView,那么可以用如下方法alertview show的时候写个主线程延迟,pop也延迟
UIAlertView *alert = [[UIAlertView alloc]initWithTitle:@"" message:@"感谢你对我们提出的意见或建议,你的支持就是我们进步的动力!" delegate:self cancelButtonTitle:@"我知道了" otherButtonTitles:nil, nil];dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.4f * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{ [alert show];});
-(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{ if (buttonIndex==0) { [self performSelector:@selector(backForward) withObject:nil afterDelay:0.25f]; }}
好了的效果如下