Kotlin: java.lang.ClassCastException: java.lang.Long cannot be cast to java.lang.Integer

Question

I know there are a lot of questions about this exception but no answer suited my case.

var count = sharedPref.getInt("flutter.badgeCount", 0)    // line 12
ShortcutBadger.applyCount(applicationContext, count+1)    // line 13

count should be an integer because sharedPref.getInt returns an integer, and applyCount() receive an integer as the second parameter. The exception is thrown at runtime at line 12. Is there anything I can't see? (I'm pretty new to kotlin)

You must have a long value stored in the shared preferences for that key. — Tenfour04
– Tenfour04, Commented Dec 9, 2020 at 18:29
"because sharedPref.getInt returns an integer" if it succeeds. In your case it fails, so the stored value is not an integer (and from the error message we know it's a long). Line 13 doesn't matter because you never get to there. — Alexey Romanov
– Alexey Romanov, Commented Dec 10, 2020 at 13:24

fabio · Accepted Answer · 2020-12-09 20:38:22Z

2

Use the following. This would solve the problem.

var count = sharedPref.getLong("flutter.badgeCount", 0L)  
ShortcutBadger.applyCount(applicationContext, count.toInt()+1)

edited Dec 9, 2020 at 20:38

fabio

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answered Dec 9, 2020 at 18:36

akhil nair

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2 Comments

fabio Over a year ago

I got an error: "Type mismatch: inferred type is Long but Int was expected".

fabio Over a year ago

Ok, I cast count to integer with count.toInt() and now works fine

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