getTag（）返回错误的字符串

Question

I've set a tag on an imageview to be "blank", so it looks like this in the xml file

android:tag="blank"

Now when I run this

((String) buttons[button-2].getTag() == "blank"

It returns false. I can't find why, any ideas? Any help greatly appreciated.

Answer 1

Use:

((String) buttons[button-2].getTag().equals("blank")

For String comparison you must use equals , == tests references.

Answer 2

You can also intern the String. This always produces the same object for the same string contents, so you can do comparisons with == .