Android putExtra cannot resolve symbol
I'm trying to transfer a string from one activity to another in android. I'm working off of this answer: How to use putExtra() and getExtra() for string data
However, I think I'm doing something really basic incorrectly. When I type " i.putExtra " I get the error "cannot resolve putExtra." Do I need to import something to use putExtra ?
In the documentation for putExtra it seems that I should be able to use it as long as I've imported android.content .Intent, which I have.
您必须将代码放入OnCreate()语句中。
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