spinner – Page 3 – Tarik Billa

How to make rounded border for dropdownbutton in flutter?

May 14, 2023 by Tarik

With the form field variant, you can use the OutlineInputBorder InputBorder, used normally for input text fields: DropdownButtonFormField( … decoration: const InputDecoration( border: OutlineInputBorder(), ), ), The way the form field does this can be replicated and used with the regular DropdownButton: InputDecorator( decoration: const InputDecoration(border: OutlineInputBorder()), child: DropdownButtonHideUnderline( child: DropdownButton( … ), ), ),

Android – configure Spinner to use array

May 9, 2023 by Tarik

Rather than the dual array method, why not fill your ArrayAdapter programmatically with objects of a known type and use that. I’ve written a tutorial of a similar nature (link at the bottom) that does this. The basic premise is to create an array of Java objects, tell the spinner about the, and then use … Read more

Set Key and Value in spinner

May 9, 2023 by Tarik

Better approach to populate spinner with key and value should be: Step 1: Create POJO class which will take care of key and value public class Country { private String id; private String name; public Country(String id, String name) { this.id = id; this.name = name; } public String getId() { return id; } public … Read more

ViewPostIme pointer 1/0

May 9, 2023 by Tarik

You shouldn’t create the OnItemSelectedListener inside the OnClickListener for your sign in button, instead you have to create it outside and save the selected option in a variable. Then when the user clicks your sign in button, you check witch option was selected and start the correct Activity. Looking at your code, you could simply … Read more

Android spinner with underline appcompat

May 4, 2023 by Tarik

Update your support library and in XML use Please add this style to your Spinner style=”@style/Base.Widget.AppCompat.Spinner.Underlined”

Creating a setError() for the Spinner

May 2, 2023 by Tarik

Similar to @Gábor’s solution, but I didn’t need to create my own adapter. I just call the following code in my validate function (i.e. on submit button clicked) TextView errorText = (TextView)mySpinner.getSelectedView(); errorText.setError(“anything here, just to add the icon”); errorText.setTextColor(Color.RED);//just to highlight that this is an error errorText.setText(“my actual error text”);//changes the selected item text … Read more

How can I use onItemSelected in Android?

April 30, 2023 by Tarik

You’re almost there. As you can see, the onItemSelected will give you a position parameter, you can use this to retrieve the object from your adapter, as in getItemAtPosition(position). Example: spinner.setOnItemSelectedListener(this); … public void onItemSelected(AdapterView<?> parent, View view, int pos,long id) { Toast.makeText(parent.getContext(), “OnItemSelectedListener : ” + parent.getItemAtPosition(pos).toString(), Toast.LENGTH_SHORT).show(); } This will put a message … Read more

How do you get the selected value of a Spinner?

April 21, 2023 by Tarik

To get the selected value of a spinner you can follow this example. Create a nested class that implements AdapterView.OnItemSelectedListener. This will provide a callback method that will notify your application when an item has been selected from the Spinner. Within “onItemSelected” method of that class, you can get the selected item: public class YourItemSelectedListener … Read more

Android – Remove Spinner Dropdown Arrow

April 14, 2023 by Tarik

Background @null in the layout xml file also does the trick, if you don’t want to declare a specific style: <Spinner android:layout_width=”wrap_content” android:layout_height=”wrap_content” android:background=”@null”/>

Android: setSelection having no effect on Spinner

April 14, 2023 by Tarik

Try moving the call to setSelection() after the call to setAdapter().