Hello friends,in this android tutorial we learn how to implement Spinner using strings.xml. In this example i write a very simple code to implement spinner.spinner is a nothing but a like a drop down menu.
Let me explore example To create spinner using strings.xml
CREATE NEW ANDROID PROJECT:
We need for this example:
1) strings.xml
2) activity_main.xml
3) MainActivity.java
Step 1: Write code into strings.xml
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="app_name">SpinnerUsingString</string>
<string name="action_settings">Settings</string>
<string name="hello_world">Hello world!</string>
<string name="countryselect">Select a Country</string>
<string-array name="country_arrays">
<item>India</item>
<item>United States</item>
<item>United Kingdom</item>
<item>France</item>
<item>Italy</item>
<item>Singapore</item>
<item>japan</item>
<item>China</item>
<item>Mexico</item>
<item>Russia</item>
<item>Spain</item>
<item>Cuba</item>
</string-array>
</resources>
Step 2: Write code into activity_main.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="Androidapplink"
android:textSize="20sp" />
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Select Country"
android:textSize="20sp" />
<Spinner
android:id="@+id/spCountries"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:entries="@array/country_arrays"
android:prompt="@string/countryselect" >
</Spinner>
</LinearLayout>
Step 3: Write code into MainnActivity.java
package dev.androidapplink.spinnerusingstring;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.Spinner;
import android.widget.Toast;
public class MainActivity extends Activity {
// create variable
Spinner spCountries;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Initialize Spinners
spCountries = (Spinner) findViewById(R.id.spCountries);
// Country Item Selected Listener
spCountries.setOnItemSelectedListener(new OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> adapter, View v,
int position, long id) {
// On selecting a spinner item
String item = adapter.getItemAtPosition(position).toString();
// Showing selected spinner item
Toast.makeText(getApplicationContext(),
"Selected Country is : " + item, Toast.LENGTH_LONG).show();
}
@Override
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
});
}
}
Step 3: Now Run Your Project:
Let me explore example To create spinner using strings.xml
CREATE NEW ANDROID PROJECT:
We need for this example:
1) strings.xml
2) activity_main.xml
3) MainActivity.java
Step 1: Write code into strings.xml
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="app_name">SpinnerUsingString</string>
<string name="action_settings">Settings</string>
<string name="hello_world">Hello world!</string>
<string name="countryselect">Select a Country</string>
<string-array name="country_arrays">
<item>India</item>
<item>United States</item>
<item>United Kingdom</item>
<item>France</item>
<item>Italy</item>
<item>Singapore</item>
<item>japan</item>
<item>China</item>
<item>Mexico</item>
<item>Russia</item>
<item>Spain</item>
<item>Cuba</item>
</string-array>
</resources>
Step 2: Write code into activity_main.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="Androidapplink"
android:textSize="20sp" />
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Select Country"
android:textSize="20sp" />
<Spinner
android:id="@+id/spCountries"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:entries="@array/country_arrays"
android:prompt="@string/countryselect" >
</Spinner>
</LinearLayout>
Step 3: Write code into MainnActivity.java
package dev.androidapplink.spinnerusingstring;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.Spinner;
import android.widget.Toast;
public class MainActivity extends Activity {
// create variable
Spinner spCountries;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Initialize Spinners
spCountries = (Spinner) findViewById(R.id.spCountries);
// Country Item Selected Listener
spCountries.setOnItemSelectedListener(new OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> adapter, View v,
int position, long id) {
// On selecting a spinner item
String item = adapter.getItemAtPosition(position).toString();
// Showing selected spinner item
Toast.makeText(getApplicationContext(),
"Selected Country is : " + item, Toast.LENGTH_LONG).show();
}
@Override
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
});
}
}
Step 3: Now Run Your Project:
No comments :
Post a Comment