getposition() of adapter is not being called in Android

Question

I have a spinner whose elements are save in sharedPrefrences. When I choose any element from the spinner and clicks on save button it saves that element in sharedPref and whenever I come back to this activity the spinner is selected with the same element that I'd choosen and saved. The problem arises when I close my app and removes from currently running apps in my phone. In this case when I open my app and goes to that activity, spinner is selected with the 0th element. I'm getting the saved element from sharedPref but getPosition() is not being called. Why is it happening?

Here's my method:

public boolean setBranchIds(ArrayList<String> tdBrlist) {
    try {
        branchList = tdBrlist;
        runOnUiThread(new Runnable() {
            @Override
            public void run() {
                branchSpinner = new Spinner(Activity_Settings.this);


                TableRow.LayoutParams tdpid_spinner_params = new TableRow.LayoutParams(
                        0, LayoutParams.WRAP_CONTENT, 3f);
                branchSpinner.setLayoutParams(tdpid_spinner_params);
                branchRow.addView(branchSpinner);
                branchSpinner.setPrompt("Select Branch");

                if (branchList.size() > 0) {
                    ArrayAdapter<String> spinnerAdapter = new ArrayAdapter<String>(
                            Activity_Settings.this,
                            android.R.layout.simple_spinner_item,
                            branchList);
                    branchSpinner.setAdapter(spinnerAdapter);

                    String branch = mActivity.getSharedPreferences(
                            Utility.PREFERENCE_NAME, Context.MODE_PRIVATE)
                            .getString(Utility.BRANCH, "");
                    System.out.println("====branch===: "+branch);
                    if (!branch.equals("")) {
                        branchIndex = getIndex(branch);   
                        System.out.println("=====positionbranch:    
         "+branchIndex);
                        branchSpinner.setSelection(branchIndex);
                    }
                }
            }

        });
    } catch (Exception e) {
        e.printStackTrace();
        return false;
    }
    return true;
}
private int getIndex(String branch) {
    for (int i = 0; i < branchList.size(); i++) {
        if (branchList.get(i).equalsIgnoreCase(branch)) {
            System.out.println("======i: "+i);
            return i;

        }
    }
    return -1;
}

LogCat values:

12-17 13:50:51.502: I/System.out(13229): ====branch===: B1
12-17 13:50:51.502: I/System.out(13229): ====branchlist===: [Select, B1, B2,   
B3,B4]
12-17 13:50:51.502: I/System.out(13229): ======i: 1
12-17 13:50:51.502: I/System.out(13229): =====positionbranch: 1

LogCat values when I return back:

12-17 13:53:10.932: I/System.out(14895): ====branch===: B1
12-17 13:53:10.932: I/System.out(14895): ====branchlist===: [Select, B1, B2
, B3, B4]
12-17 13:53:10.932: I/System.out(14895): =====positionbranch: -1

I think you should call `indexOf()` in the `ArrayList` instead of `getPosition()` in the `Adapter` — Rivu Chakraborty, Dec 17 '15 at 07:07
@RivuChakraborty I tried that too. But it didn't work either — Sheena Tyagi, Dec 17 '15 at 07:09
on using indexOf(), I'm getting branch value and there are all the elements in branchList, still its not getting index from this arraylist — Sheena Tyagi, Dec 17 '15 at 07:14
`if (branch != "") {` this not how we compare strings in java — pskink, Dec 17 '15 at 07:14
@SheenaTyagi: Sheena see this post [something like equalsIgnoreCase while using indexOf](http://stackoverflow.com/questions/13817413/something-like-equalsignorecase-while-using-indexof) and also use `String.equals` instead of `!=` — ρяσѕρєя K, Dec 17 '15 at 07:16
so inside `getIndex` log each loop iteration with `branchList.get(i)` and `branch` — pskink, Dec 17 '15 at 08:27

score 3 · Answer 1 · answered Dec 17 '15 at 07:08

3

May you have to Replace:

int branchIndex = pinnerAdapter.getPosition(branch);
branchSpinner.setSelection(branchIndex);

With this:

branchSpinner.setSelection(list.indexOf(branch));

answered Dec 17 '15 at 07:08

Pratik Butani

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Its not working when I cleared my app from currently running apps in background :/ – Sheena Tyagi Dec 17 '15 at 07:11
Removed your app? Means? – Pratik Butani Dec 17 '15 at 07:12

getposition() of adapter is not being called in Android

1 Answers1