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IndexOutOfBoundsException in getSectionTitle of CountryCodeAdapter

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#619 0 comments 0 reactions 0 assignees View on GitHub

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Assessment

Difficulty
2/5
Estimated time
1-3 hours
Newbie friendliness
48/100
Issue type
Bug
Clarity
Clearly specified
Activity status
Stale
Tech stack
android, java
Domain
mobile

Research direction

Start by reading CountryCodeAdapter.java, especially getSectionTitle and the filteredCountries access around line 202, then inspect how FastScroller.java supplies positions. Reproduce the crash if possible and verify that out-of-range positions no longer throw an IndexOutOfBoundsException while valid country sections still return their titles.

Written by the indexing model from the issue text.

Description

Fatal Exception: java.lang.IndexOutOfBoundsException
Index: 253, Size: 253
java.util.ArrayList.get (ArrayList.java:437)
com.hbb20.CountryCodeAdapter.getSectionTitle (CountryCodeAdapter.java:1)

Sometimes FastScroller.java crashes app. It will be better to check the length of filteredCountries before get CCPCountry in this line

CCPCountry ccpCountry = filteredCountries.get(position); (202 line of CountryCodeAdapter class)

For example like this:

    public String getSectionTitle(int position) {
        if (preferredCountriesCount > position) {
            return "★";
        } else if (filteredCountries.size() > position) {
            return filteredCountries.get(position).getName().substring(0, 1);
        } else {
            return ""; //this should never be the case but it does
        }
    }
Dominant language
Java
Stars
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Forks
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PR merge metrics
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