iOS自定义的模态提示对话框

iOS自定义的模态提示对话框

 

基本思路：

1.创建一个和整个屏幕一样大小的UIView遮住屏幕，使其不能进行其他操作

   注意：[self.view.window addSubview:vwFullScreenView]; 添加至应用的最上层。

2.在遮罩UIView上添加一个用作对话框的UIView，然后在对话框UIView上添加自己想要的视图。

3.关闭的时候可以直接使用遮罩UIView的tag进行移除。

 

 

 

-(void) _doClickShowModalDialog : (UIButton*) sender {
    NSLog(@"_doClickShowModalDialog");
    
    UIView* vwFullScreenView = [[UIView alloc]init];
    vwFullScreenView.tag=9999;
    vwFullScreenView.backgroundColor=[UIColor clearColor];
    vwFullScreenView.frame=self.view.window.frame;
    [self.view.window addSubview:vwFullScreenView];
    
    UIView* vwDialog = [[UIView alloc] init];
    vwDialog.frame=CGRectMake(0, 0, 200, 200);
    vwDialog.backgroundColor=[UIColor whiteColor];
    vwDialog.layer.borderColor=[UIColor blueColor].CGColor;
    vwDialog.layer.borderWidth=0.6;
    vwDialog.layer.cornerRadius=6;
    vwDialog.center=vwFullScreenView.center;
    [vwFullScreenView addSubview:vwDialog];
    
    UIButton* btnClick = [UIButton buttonWithType:UIButtonTypeCustom];
    [btnClick setTitle:@"Close" forState:UIControlStateNormal];
    [btnClick setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
    btnClick.frame=CGRectMake((vwDialog.frame.size.width-100)/2, (vwDialog.frame.size.height-30)/2, 100, 30);
    [btnClick addTarget:self action:@selector(_doClickCloseDialog:) forControlEvents:UIControlEventTouchUpInside];
    [vwDialog addSubview:btnClick];
}


-(void) _doClickCloseDialog : (UIButton*) sender {
    NSLog(@"_doClickCloseDialog");
    [[self.view.window viewWithTag:9999]removeFromSuperview];
}