How to remove selected TextViews from my ListView

Asked Oct 30 '18 at 11:08

Active Oct 30 '18 at 11:43

Viewed 58 times

I'm trying to implement removing chosen TextViews from my ListView.

The one way to do this according to android dev reference is by using SparseBooleanArray. The problem is, I don't understand the logic behing this array and every time I call the getCheckedItemPositions(), method returns the empty array.

Here is the sample of my code:

List<Record> records = new RecordDAO(this).findAll(); //gets all records saved in ListView from database 
SparseBooleanArray checkedPositions = recordListView.getCheckedItemPositions();

for(int i = 0; i < records.size(); i++){
   if(checkedPositions.valueAt(i)){
        System.out.println("chosen at pos: " + i);
   }
}

I choose the last 2 TextViews press button

and the output is:

I/System.out: chosen at pos: 0
I/System.out: chosen at pos: 1

How do I properly solve my problem?
Can anyone explain me how does the SparseBooleanArray working?

edited Oct 30 '18 at 11:43

Ali Ahmed

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asked Oct 30 '18 at 11:08

Pavlo Rozbytskyi

refer to (this)[https://stackoverflow.com/questions/18822708/what-is-the-clear-purpose-of-sparsebooleanarray-i-referred-official-android] link I found it helpful. – jaydeep_gedia Oct 30 '18 at 11:18
May be useful -> https://stackoverflow.com/questions/2558591/remove-listview-items-in-android – Blasanka Oct 30 '18 at 11:18
first link was helpful after I actually solved the problem. – Pavlo Rozbytskyi Oct 30 '18 at 12:40

How to remove selected TextViews from my ListView

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