Android-Wheel: http://code.google.com/p/android-wheel/
It comes with a handy ScrollListener for listen to touch events on the wheel component.
source code
package com.vijay;
import com.vijay.wheel.ArrayWheelAdapter;
import com.vijay.wheel.OnWheelChangedListener;
import com.vijay.wheel.OnWheelScrollListener;
import com.vijay.wheel.WheelView;
import android.app.Activity;
import android.os.Bundle;
import android.widget.EditText;
import android.widget.TextView;
public class MainActivity extends Activity
{
// TODO: Externalize string-array
String wheelMenu1[] = new String[]{"name 1", "name 2", "name 3", "name 4", "name 5", "name 6","name 7","name 8","name 9"};
String wheelMenu2[] = new String[]{"age 1", "age 2", "age 3"};
String wheelMenu3[] = new String[]{"10", "20","30","40","50","60"};
// Wheel scrolled flag
private boolean wheelScrolled = false;
private TextView text;
private EditText text1;
private EditText text2;
private EditText text3;
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
initWheel1(R.id.p1);
initWheel2(R.id.p2);
initWheel3(R.id.p3);
text1 = (EditText) this.findViewById(R.id.r1);
text2 = (EditText) this.findViewById(R.id.r2);
text3 = (EditText) this.findViewById(R.id.r3);
text = (TextView) this.findViewById(R.id.result);
}
// Wheel scrolled listener
OnWheelScrollListener scrolledListener = new OnWheelScrollListener()
{
public void onScrollStarts(WheelView wheel)
{
wheelScrolled = true;
}
public void onScrollEnds(WheelView wheel)
{
wheelScrolled = false;
updateStatus();
}
};
// Wheel changed listener
private final OnWheelChangedListener changedListener = new OnWheelChangedListener()
{
public void onChanged(WheelView wheel, int oldValue, int newValue)
{
if (!wheelScrolled)
{
updateStatus();
}
}
};
/**
* Updates entered PIN status
*/
private void updateStatus()
{
text1.setText(wheelMenu1[getWheel(R.id.p1).getCurrentItem()]);
text2.setText(wheelMenu2[getWheel(R.id.p2).getCurrentItem()]);
text3.setText(wheelMenu3[getWheel(R.id.p3).getCurrentItem()]);
text.setText(wheelMenu1[getWheel(R.id.p1).getCurrentItem()] + " - " + wheelMenu2[getWheel(R.id.p2).getCurrentItem()] + " - " + wheelMenu3[getWheel(R.id.p3).getCurrentItem()]);
}
/**
* Initializes wheel
*
* @param id
* the wheel widget Id
*/
private void initWheel1(int id)
{
WheelView wheel = (WheelView) findViewById(id);
wheel.setAdapter(new ArrayWheelAdapter<String>(wheelMenu1));
wheel.setVisibleItems(2);
wheel.setCurrentItem(0);
wheel.addChangingListener(changedListener);
wheel.addScrollingListener(scrolledListener);
}
private void initWheel2(int id)
{
WheelView wheel = (WheelView) findViewById(id);
wheel.setAdapter(new ArrayWheelAdapter<String>(wheelMenu2));
wheel.setVisibleItems(2);
wheel.setCurrentItem(0);
wheel.addChangingListener(changedListener);
wheel.addScrollingListener(scrolledListener);
}
private void initWheel3(int id)
{
WheelView wheel = (WheelView) findViewById(id);
wheel.setAdapter(new ArrayWheelAdapter<String>(wheelMenu3));
wheel.setVisibleItems(2);
wheel.setCurrentItem(0);
wheel.addChangingListener(changedListener);
wheel.addScrollingListener(scrolledListener);
}
/**
* Returns wheel by Id
*
* @param id
* the wheel Id
* @return the wheel with passed Id
*/
private WheelView getWheel(int id)
{
return (WheelView) findViewById(id);
}
/**
* Tests wheel value
*
* @param id
* the wheel Id
* @param value
* the value to test
* @return true if wheel value is equal to passed value
*/
private int getWheelValue(int id)
{
return getWheel(id).getCurrentItem();
}
}
main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:background="@drawable/layout_bg">
<LinearLayout
android:layout_marginTop="24dp"
android:layout_gravity="center_horizontal"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<com.vijay.wheel.WheelView
android:id="@+id/p1"
android:layout_height="wrap_content"
android:layout_width="wrap_content" />
<com.vijay.wheel.WheelView
android:id="@+id/p2"
android:layout_height="wrap_content"
android:layout_width="wrap_content" />
<com.vijay.wheel.WheelView
android:id="@+id/p3"
android:layout_height="wrap_content"
android:layout_width="wrap_content" />
</LinearLayout>
<LinearLayout
android:orientation="horizontal"
android:layout_gravity="center_horizontal"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="24dp">
<EditText
android:id="@+id/r1"
android:layout_width="100dip"
android:layout_height="wrap_content"
android:layout_marginTop="24dp"
android:layout_gravity="center_horizontal"
android:textSize="18sp"
android:textColor="#000">
</EditText>
<EditText
android:id="@+id/r2"
android:layout_width="80dip"
android:layout_height="wrap_content"
android:layout_marginTop="24dp"
android:layout_gravity="center_horizontal"
android:textSize="18sp"
android:textColor="#000">
</EditText>
<EditText
android:id="@+id/r3"
android:layout_width="80dip"
android:layout_height="wrap_content"
android:layout_marginTop="24dp"
android:layout_gravity="center_horizontal"
android:textSize="18sp"
android:textColor="#000">
</EditText>
</LinearLayout>
<TextView
android:id="@+id/result"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="24dp"
android:layout_gravity="center_horizontal"
android:textSize="18sp"
android:textColor="#FFF"
android:text="Your choice">
</TextView>
</LinearLayout>
It comes with a handy ScrollListener for listen to touch events on the wheel component.
source code
package com.vijay;
import com.vijay.wheel.ArrayWheelAdapter;
import com.vijay.wheel.OnWheelChangedListener;
import com.vijay.wheel.OnWheelScrollListener;
import com.vijay.wheel.WheelView;
import android.app.Activity;
import android.os.Bundle;
import android.widget.EditText;
import android.widget.TextView;
public class MainActivity extends Activity
{
// TODO: Externalize string-array
String wheelMenu1[] = new String[]{"name 1", "name 2", "name 3", "name 4", "name 5", "name 6","name 7","name 8","name 9"};
String wheelMenu2[] = new String[]{"age 1", "age 2", "age 3"};
String wheelMenu3[] = new String[]{"10", "20","30","40","50","60"};
// Wheel scrolled flag
private boolean wheelScrolled = false;
private TextView text;
private EditText text1;
private EditText text2;
private EditText text3;
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
initWheel1(R.id.p1);
initWheel2(R.id.p2);
initWheel3(R.id.p3);
text1 = (EditText) this.findViewById(R.id.r1);
text2 = (EditText) this.findViewById(R.id.r2);
text3 = (EditText) this.findViewById(R.id.r3);
text = (TextView) this.findViewById(R.id.result);
}
// Wheel scrolled listener
OnWheelScrollListener scrolledListener = new OnWheelScrollListener()
{
public void onScrollStarts(WheelView wheel)
{
wheelScrolled = true;
}
public void onScrollEnds(WheelView wheel)
{
wheelScrolled = false;
updateStatus();
}
};
// Wheel changed listener
private final OnWheelChangedListener changedListener = new OnWheelChangedListener()
{
public void onChanged(WheelView wheel, int oldValue, int newValue)
{
if (!wheelScrolled)
{
updateStatus();
}
}
};
/**
* Updates entered PIN status
*/
private void updateStatus()
{
text1.setText(wheelMenu1[getWheel(R.id.p1).getCurrentItem()]);
text2.setText(wheelMenu2[getWheel(R.id.p2).getCurrentItem()]);
text3.setText(wheelMenu3[getWheel(R.id.p3).getCurrentItem()]);
text.setText(wheelMenu1[getWheel(R.id.p1).getCurrentItem()] + " - " + wheelMenu2[getWheel(R.id.p2).getCurrentItem()] + " - " + wheelMenu3[getWheel(R.id.p3).getCurrentItem()]);
}
/**
* Initializes wheel
*
* @param id
* the wheel widget Id
*/
private void initWheel1(int id)
{
WheelView wheel = (WheelView) findViewById(id);
wheel.setAdapter(new ArrayWheelAdapter<String>(wheelMenu1));
wheel.setVisibleItems(2);
wheel.setCurrentItem(0);
wheel.addChangingListener(changedListener);
wheel.addScrollingListener(scrolledListener);
}
private void initWheel2(int id)
{
WheelView wheel = (WheelView) findViewById(id);
wheel.setAdapter(new ArrayWheelAdapter<String>(wheelMenu2));
wheel.setVisibleItems(2);
wheel.setCurrentItem(0);
wheel.addChangingListener(changedListener);
wheel.addScrollingListener(scrolledListener);
}
private void initWheel3(int id)
{
WheelView wheel = (WheelView) findViewById(id);
wheel.setAdapter(new ArrayWheelAdapter<String>(wheelMenu3));
wheel.setVisibleItems(2);
wheel.setCurrentItem(0);
wheel.addChangingListener(changedListener);
wheel.addScrollingListener(scrolledListener);
}
/**
* Returns wheel by Id
*
* @param id
* the wheel Id
* @return the wheel with passed Id
*/
private WheelView getWheel(int id)
{
return (WheelView) findViewById(id);
}
/**
* Tests wheel value
*
* @param id
* the wheel Id
* @param value
* the value to test
* @return true if wheel value is equal to passed value
*/
private int getWheelValue(int id)
{
return getWheel(id).getCurrentItem();
}
}
main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:background="@drawable/layout_bg">
<LinearLayout
android:layout_marginTop="24dp"
android:layout_gravity="center_horizontal"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<com.vijay.wheel.WheelView
android:id="@+id/p1"
android:layout_height="wrap_content"
android:layout_width="wrap_content" />
<com.vijay.wheel.WheelView
android:id="@+id/p2"
android:layout_height="wrap_content"
android:layout_width="wrap_content" />
<com.vijay.wheel.WheelView
android:id="@+id/p3"
android:layout_height="wrap_content"
android:layout_width="wrap_content" />
</LinearLayout>
<LinearLayout
android:orientation="horizontal"
android:layout_gravity="center_horizontal"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="24dp">
<EditText
android:id="@+id/r1"
android:layout_width="100dip"
android:layout_height="wrap_content"
android:layout_marginTop="24dp"
android:layout_gravity="center_horizontal"
android:textSize="18sp"
android:textColor="#000">
</EditText>
<EditText
android:id="@+id/r2"
android:layout_width="80dip"
android:layout_height="wrap_content"
android:layout_marginTop="24dp"
android:layout_gravity="center_horizontal"
android:textSize="18sp"
android:textColor="#000">
</EditText>
<EditText
android:id="@+id/r3"
android:layout_width="80dip"
android:layout_height="wrap_content"
android:layout_marginTop="24dp"
android:layout_gravity="center_horizontal"
android:textSize="18sp"
android:textColor="#000">
</EditText>
</LinearLayout>
<TextView
android:id="@+id/result"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="24dp"
android:layout_gravity="center_horizontal"
android:textSize="18sp"
android:textColor="#FFF"
android:text="Your choice">
</TextView>
</LinearLayout>
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