changing switches to "if-else" statements

Question

I've just recently become interested in programming, and I want to create Android apps for phones or tablets. I've come a long way in a couple weeks from knowing almost nothing about java/xml. I'm very serious about this. I'm going to find the answer to this question one way or the other. In fact, I hope to have it figured out before anyone answers this. I've fixed many issues without resorting to asking anyone, but I've just been stuck on this issue too long. I figured I'd give this a shot.

I'm using an older tutorial to build a practice twitter app (the tutorials for these seem to be everywhere, which is why I chose it). I'm using Eclipse for an editor.

The following is an example of code from the tutorial. which relates to my question:

@Override
    public void onCreate (Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.timeline);

Apparently since the intro of ADT 14, you can no longer use the (R.layout.timeline) phrase, which the error message refers to as a "switch statement."

Now, in a post I found on another site, someone who had a similar issue shows a screenshot of the "quick fix" in Eclipse using ctrl+1. in the screenshot, the fix that pops up says "convert switch to 'if-else' statement." This fix does not pop up in my version of Eclipse. My quick fix options are "migrate Android code", "create field 'timeline' in type 'layout'", "create constant 'timeline' in type 'layout'" or "rename in file."

If I choose "migrate Android code", a window pops up informing me of the ADT 14 update, and how switch statements are no longer allowed in library projects. It says to convert the switch statement to an "if-else" statement by pressing ctrl+1 for the quick fix, then choosing "switch to 'if-else' statement" like it does in the screenshot I found. But again, when I do this, that option does not pop up.

I would much rather know what needs to be changed in the code than know how to make the right quick fix pop up. If it isn't too much trouble, an explanation of why exactly these changes are affective would be very helpful. I have many (MANY) errors in my java files right now, but most of them are due to this exact problem in different forms. If I could see just one before/after example I could probably figure it out from there without an explanation. But after hours of searching, I cannot find that so far by googling.

Thanks so much in advance....

And for the record, I don't see any switch classes in any of my java files, if that makes a difference for the answer...

Answer 1

Make sure you click on the switch keyword itself then press Ctrl + 1.
This confused me at first as well...

If it still doesn't show up, what version of Eclipse are you using?

If you are using a Mac select the keyword switch and click Shift + Command + 1.
That will show a prompt to change switch to if else conditions.

Answer 2

I've been having the same issues. For me, I was switching on view.getId(). Before the switch, declare int id = view.getId();. Then switch in id. Then you can ctrl+1 click and the "Convert Switch to If/Else" should pop up.

They made this change to decrease the build speed. My projects now build in roughly 1/10th of the time. I'm glad I upgraded the ADT.