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Filter Data In Arrayadapter

In this article, we will filter data in arrayadapter.

Sample Code

For filtering data from adapter use the following method

<adapter_instance>.getFilter().Filter(text);

In the above syntax, text parameter is the constraint or search criteria. There are 2 important things to notice

text parameter is not case sensitive.
Filter result will contain only those values that starts with text parameter. For example, if the value of text is ‘a’ then all the data starts with letter ‘a’ will come in filtered result.

Example

Let us work on an example where we have a spinner control. The below code will filter data in spinner

String fruitlist[] = {
    "apple",
    "banana",
    "orange",
    "cherry"
};
Spinner spinner = (Spinner) findViewById(R.id.spinner);
ArrayAdapter < String > adapter = new ArrayAdapter < String > (this, R.layout.support_simple_spinner_dropdown_item, fruitlist);
adapter.getFilter().filter("a");
spinner.setAdapter(adapter);

Output

Click to Enlarge

Posted By -	Karan Gupta

Posted On -	Wednesday, November 13, 2019

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