Can a variable have two values?

Question

可以给变量两个值吗？

ImageView imageView  = itemView.findViewById(R.id.imageView1) && itemView.findViewById(R.id.imageView2);

Answer 1

I think you might be looking for an or solution instead of an and . An and of views makes no sense.

However, you could default to a second view if a first view cannot be found:

imageView = Optional.ofNullable(itemView.findViewById(R.id.imageView1))
                    .orElse(itemView.findViewById(R.id.imageView2));

Answer 2

Short answer: NO

but, it depends where, you can manage to do different things:

Pair<ImageView, ImageView>  imageViewPair  = new Pair<>(itemView.findViewById(R.id.imageView1), itemView.findViewById(R.id.imageView2));

that could be an option, if you want multiple:

List<ImageView> images = Arrays.asList(itemView.findViewById(R.id.imageView1), itemView.findViewById(R.id.imageView2), ..., ...);

and also with Optional as @Saswat Padhi you have another one way to do it.

Answer 3

In this case - no. However it is possible to hold multiple values in variable that is a collection.

Answer 4

不，您不能这样做，应该一次定义图像视图，如果您需要轻松的方法来绑定视图，则可以使用黄油刀单击此处。