ios 自定义弹出对话框效果

简单的实现自定义对话框

-(void)openWindow{
     alterView=[[UIView alloc]initWithFrame:CGRectMake(120, 250,320,150)];
    alterView.backgroundColor=[UIColor colorWithPatternImage:[UIImage imageNamed:@"tankuang.png"]];
    [self.view addSubview:alterView];
    
    textIP=[[UITextField alloc]initWithFrame:CGRectMake(15, 50, 300,50)];
    textIP.borderStyle=0;
    textIP.backgroundColor=[UIColor clearColor];
    textIP.textColor=[UIColor blackColor];
    [alterView addSubview:textIP];
    textIP.keyboardType=UIKeyboardTypeAlphabet;
    [textIP becomeFirstResponder];
    
    UIButton *btnOK=[UIButton buttonWithType:UIButtonTypeRoundedRect];
    [btnOK  setBackgroundImage:[UIImage imageNamed:@"quxiao.png"] forState:UIControlStateNormal];
    btnOK.frame=CGRectMake(50, 100, 60, 29);
    btnOK.tag=0;
    [btnOK addTarget:self action:@selector(setIP:) forControlEvents:UIControlEventTouchUpInside];
    [alterView addSubview:btnOK];
    
    UIButton *btnCacel=[UIButton buttonWithType:UIButtonTypeRoundedRect];
    btnCacel.tag=1;
    [btnCacel  setBackgroundImage:[UIImage imageNamed:@"queren.png"] forState:UIControlStateNormal];
    [btnCacel addTarget:self action:@selector(setIP:) forControlEvents:UIControlEventTouchUpInside];
    btnCacel.frame=CGRectMake(200, 100, 60, 29);
    [alterView addSubview:btnCacel];
    [self exChangeOut:alterView dur:0.5];
}

加上苹果的弹出效果

-(void)exChangeOut:(UIView *)changeOutView dur:(CFTimeInterval)dur{
    
    CAKeyframeAnimation * animation;
    animation = [CAKeyframeAnimation animationWithKeyPath:@"transform"];
    
    animation.duration = dur;
    
    //animation.delegate = self;
    
    animation.removedOnCompletion = NO;
    
    animation.fillMode = kCAFillModeForwards;
    
    NSMutableArray *values = [NSMutableArray array];
    
    [values addObject:[NSValue valueWithCATransform3D:CATransform3DMakeScale(0.1, 0.1, 1.0)]];
    
    [values addObject:[NSValue valueWithCATransform3D:CATransform3DMakeScale(1.2, 1.2, 1.0)]];
    
    [values addObject:[NSValue valueWithCATransform3D:CATransform3DMakeScale(0.9, 0.9, 0.9)]];
    
    [values addObject:[NSValue valueWithCATransform3D:CATransform3DMakeScale(1.0, 1.0, 1.0)]];
    
    animation.values = values;
    
    animation.timingFunction = [CAMediaTimingFunction functionWithName: @"easeInEaseOut"];
    
    [changeOutView.layer addAnimation:animation forKey:nil];
    
}