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Boolean that checks if a button is clicked does not work for some reason

Greenhorn

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posted 4 years ago

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I have been searching in this forum about how to make a boolean that switches to true when it is clicked. In my program I have two buttons: Yes and no. When I click them, in the onClick method, the boolean switches to true, but in the rest of the code it stays false.

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Why does that happen and how do I solve that?

Eleni Pap

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posted 4 years ago

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I am not sure if my answer helps you. But I suggest you to debug, on the rest of the code, when your code doesn't run as you want.
Right-click on the variable and add watches-to see in the right side all the values of the variable. Mark the specific lines on code for debug, to see the result on debug!

yabi ab

Greenhorn

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posted 4 years ago

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Ok, thanks a lot for answering Eleni Pap. I am not very confident with debugging yet, but I have done it already in normal Java (not Android Studio). The fact is, that I think I know, where the variable assumes true/false, because I checked it with an additional button (as a comment) and texted there the status. I made this in onClick() and outside onClick(). Outside the value is false while inside it is true.

Dave Tolls

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posted 4 years ago

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Does that code compile?
Because it looks to me like the names for your Buttons and booleans are incorrect.

yabi ab

Greenhorn

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posted 4 years ago

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You are right! I am sorry. My original code is in German and as I translated it, I made a mistake. Now it should be correct. The mistake is still not solved...

Dave Tolls

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posted 4 years ago

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OK.
You seem to want the buttons to act as RadioButtons.
That is, a pair of RadioButtons in a RadioGroup, so only one can be selected at any one time?

Campbell Ritchie

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posted 4 years ago

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YA: welcome to the Ranch

Kindly don't edit posts like that after you have a reply. Please post the code in a new post.

Tim Moores

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posted 4 years ago

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You're probably trying to learn Android development, and so using the basic GUI elements makes sense. If this was my problem, though, I would use a toggle switch like https://github.com/llollox/Android-Toggle-Switch that makes all these interactions much easier.

yabi ab

Greenhorn

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posted 4 years ago

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Ok sorry. I will have that in mind for next time

Campbell Ritchie

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posted 4 years ago

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Apology accepted

yabi ab

Greenhorn

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posted 4 years ago

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A toggle button? Is not the same problem going to appear with it? Or maybe there is an easier way to declare a Button being clicked without a boolean? This is only the part of a quiz in which the program guesses a planet of our solar system with some questions...

Dave Tolls

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Well, the ToggleButton has it's own state (on and off) so no need for a boolean.
See the example in that link (you probably want the Java tab, not Kotlin one).

Don't get me started about those stupid light bulbs.