over 9 years ago
Here I have created spinner function in android. Spinner can be used to display the multiple options to the user in which only one item can be selected by the user. Android spinner works like dropdown menu. In dropdown menu there will be multiple values from which the user have to select only one value. In the below code example I have described how to make spinner in android. Step (1)- activity_main.xml.
- <RelativeLayout xmlns:androclass="http://schemas.android.com/apk/res/android"
- xmlns:tools="http://schemas.android.com/tools"
- android:layout_width="match_parent"
- android:layout_height="match_parent"
- tools:context=".MainActivity" >
- <Spinner
- android:id="@+id/spinner1"
- android:layout_width="wrap_content"
- android:layout_height="wrap_content"
- android:layout_alignParentTop="true"
- android:layout_centerHorizontal="true"
- android:layout_marginTop="83dp" />
- </RelativeLayout>
<RelativeLayout xmlns:androclass="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" tools:context=".MainActivity" > <Spinner android:id="@+id/spinner1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentTop="true" android:layout_centerHorizontal="true" android:layout_marginTop="83dp" /> </RelativeLayout>
Step (2)-MainActivity.
- public class MainActivity extends Activity implements
- AdapterView.OnItemSelectedListener {
- String[] country = {"UK", "India", "USA", "China", "Japan", "Other" };
- @Override
- protected void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- setContentView(R.layout.activity_main);
- //Getting the instance of Spinner and applying OnItemSelectedListener on it
- Spinner spin = (Spinner) findViewById(R.id.spinner1);
- spin.setOnItemSelectedListener(this);
- ArrayAdapter aa = new ArrayAdapter(this,android.R.layout.simple_spinner_item,country);
- aa.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
- //Setting the ArrayAdapter data on the Spinner
- spin.setAdapter(aa);
- }
- @Override
- public void onItemSelected(AdapterView<?> arg0, View arg1, int position,long id) {
- Toast.makeText(getApplicationContext(),country[position] ,Toast.LENGTH_LONG).show();
- }
- @Override
- public void onNothingSelected(AdapterView<?> arg0) {
- }
- @Override
- public boolean onCreateOptionsMenu(Menu menu) {
- getMenuInflater().inflate(R.menu.activity_main, menu);
- return true;
- }
- }
public class MainActivity extends Activity implements
AdapterView.OnItemSelectedListener {
String[] country = {"UK", "India", "USA", "China", "Japan", "Other" };
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//Getting the instance of Spinner and applying OnItemSelectedListener on it
Spinner spin = (Spinner) findViewById(R.id.spinner1);
spin.setOnItemSelectedListener(this);
ArrayAdapter aa = new ArrayAdapter(this,android.R.layout.simple_spinner_item,country);
aa.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
//Setting the ArrayAdapter data on the Spinner
spin.setAdapter(aa);
}
@Override
public void onItemSelected(AdapterView<?> arg0, View arg1, int position,long id) {
Toast.makeText(getApplicationContext(),country[position] ,Toast.LENGTH_LONG).show();
}
@Override
public void onNothingSelected(AdapterView<?> arg0) {
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
}
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