How to Preselect a Spinner Item by Value in Android?

Preselecting Spinner Item by Value

To select a specific item in a Spinner based on its value rather than its position, we can utilize the ArrayAdapter and setSelection() methods.

First, obtain the ArrayAdapter associated with the Spinner using the getAdapter() method. This adapter contains a list of items that are displayed in the Spinner.

Next, use the getPosition() method of the ArrayAdapter to find the position of the item with the desired value. This method searches the adapter for an item that matches the specified value and returns its index.

Finally, set the Spinner's selected item using the setSelection() method, passing in the index of the desired item obtained from the getPosition() method.

For example, consider a Spinner containing the following items:

<code class="java">ArrayAdapter<charsequence> adapter = ArrayAdapter.createFromResource(this, R.array.select_state, android.R.layout.simple_spinner_item);</charsequence></code>

To select the item with the value "New York", we would use the following code:

<code class="java">String compareValue = "New York";
int spinnerPosition = adapter.getPosition(compareValue);
mSpinner.setSelection(spinnerPosition);</code>

This approach allows you to preselect specific values in a Spinner based on their values, ensuring that the correct choice is selected upon loading the view.

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