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Imran Asif
7,514 PointsString[] days= {"Sunday","Monday","Tuesday","Wednesday"}; How to get next and previous values
String[] days= {"Sunday","Monday","Tuesday","Wednesday"}; How to get next and previous values on button cllick
I am trying to get next value on next button click and previous values on back button click String[] days= {"Sunday","Monday","Tuesday","Wednesday"}; what is the best way to achieve this ?
i tried index for loop but cannot decreament. For example: if I set currentday= days[0]; // to get next value for(int i=0; i<days.length; i++){ currentday=days[i]; // to get previous value cannot use --
1 Answer
Imran Asif
7,514 PointsThanks Binyamin Friedman, I did the same, I have declared one variable Type int and initialize it with zero then used with if statement and increased int with ++ it worked for me.
Binyamin Friedman
14,615 PointsBinyamin Friedman
14,615 PointsYour question is a little confusing, could you elaborate, or show existing code?
It sounds like you want to make a simple app, with a text view, and two buttons. If this is the case, then I would suggest keeping a local field/variable that will store the array index, starting at 0.
You would set an onClickListener for each button; one would increment the field, and one would decrement the field. Make that you use if statements to make sure that the field never goes below 0 or above the length of the array.
Each time that a button is clicked you would also call a private method that would update the textView to the correct index of the array.