CODEWITHSUNDEEP
javaandroidfor-loopif-statement
Alaa AbuZarifa
Alaa AbuZarifa

Reputation: 1249

How to use for loop to print strings in fixed views

I know the question might sounds weird (feel free to edit the title), but what I want to accomplish basically is this:

Let's say that I have a list of 4 strings:

ArrayList<String> carList= new ArrayList<>;
 carList.add("BMW");
 carList.add("GMC");
 carList.add("KIA");
 carList.add("Honda");

I want now to print 3 of the list items into 3 textviews, the fourth item will be excluded for some reason and its position is known.

int excludedIndex = 2; //for example.

for (int i = 0; i < carList.size(); i++) {
      if (i != excludedIndex) {
        textView_1.setText(carList.get(i));  // here it will put (BMW) in tv1
        textView_2.setText(carList.get(??)); // here it should put (GMC) in tv2
        textView_3.setText(carList.get(??)); // here it should put (Honda) in tv3
       }
    }

Upvotes: 1

Views: 68

Answers (2)

Yogesh Choudhary Paliyal
Yogesh Choudhary Paliyal

Reputation: 634

you don't have to use for loop

ArrayList<String> carList= new ArrayList<>();
carList.add("BMW");
carList.add("GMC");
carList.add("KIA");
carList.add("Honda");


 textView_1.setText(carList.get(0));  // here it will put (BMW) in tv1
 textView_2.setText(carList.get(1)); // here it should put (GMC) in tv2
 textView_3.setText(carList.get(3)); // here it should put (Honda) in tv3

Upvotes: 1

GhostCat
GhostCat

Reputation: 140613

Basically you are asking: how do I map elements of a list (identified by their index) to a certain text field. And that sentence already contains one possible solution - by using a Map<Integer, TextView> that knows which text view should be used for which index.

As in:

Map<Integer, TextView> viewsByIndex = ...
for (int i = ... ) {
  if (viewsByIndex.containsKey(i)) {
     viewsByIndex.get(i).setText(listItem(i));

The above code isn't compiled/checked - it is rather meant as inspiration/pseudo code showing how one could solve this in an elegant way.

Upvotes: 2

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