效果图：
源码：
package kankan.wheel.demo;
import java.util.Calendar;
import kankan.wheel.R;
import kankan.wheel.widget.OnWheelChangedListener;
import kankan.wheel.widget.OnWheelClickedListener;
import kankan.wheel.widget.OnWheelScrollListener;
import kankan.wheel.widget.WheelView;
import kankan.wheel.widget.adapters.NumericWheelAdapter;
import android.app.Activity;
import android.os.Bundle;
import android.widget.TimePicker;
public class TimeActivity extends Activity {
// Time changed flag
private boolean timeChanged = false;
// Time scrolled flag
private boolean timeScrolled = false;
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.time_layout);
final
WheelView hours = (WheelView) findViewById(R.id.hour);
hours.setViewAdapter(new
NumericWheelAdapter(this, 0, 23));
final WheelView mins =
(WheelView) findViewById(R.id.mins);
mins.setViewAdapter(new
NumericWheelAdapter(this, 0, 59,
"d")); mins.setCyclic(true);
final TimePicker picker =
(TimePicker) findViewById(R.id.time);
picker.setIs24HourView(true);
// set current time
Calendar c =
Calendar.getInstance();
int curHours =
c.get(Calendar.HOUR_OF_DAY);
int curMinutes =
c.get(Calendar.MINUTE);
hours.setCurrentItem(curHours);
mins.setCurrentItem(curMinutes);
picker.setCurrentHour(curHours);
picker.setCurrentMinute(curMinutes);
// add listeners
addChangingListener(mins,
"min");
addChangingListener(hours,
"hour");
OnWheelChangedListener
wheelListener = new OnWheelChangedListener() {
public void
onChanged(WheelView wheel, int oldValue, int newValue) {
if
(!timeScrolled) {
timeChanged
= true;
picker.setCurrentHour(hours.getCurrentItem());
picker.setCurrentMinute(mins.getCurrentItem());
timeChanged
= false;
}
}
};
hours.addChangingListener(wheelListener);
mins.addChangingListener(wheelListener);
OnWheelClickedListener click =
new OnWheelClickedListener() {
public void onItemClicked(WheelView wheel, int itemIndex) {
wheel.setCurrentItem(itemIndex, true);
}
};
hours.addClickingListener(click);
mins.addClickingListener(click);
OnWheelScrollListener
scrollListener = new OnWheelScrollListener() {
public void
onScrollingStarted(WheelView wheel) {
timeScrolled
= true;
}
public void
onScrollingFinished(WheelView wheel) {
timeScrolled
= false;
timeChanged
= true;
picker.setCurrentHour(hours.getCurrentItem());
picker.setCurrentMinute(mins.getCurrentItem());
timeChanged
= false;
}
};
hours.addScrollingListener(scrollListener);
mins.addScrollingListener(scrollListener);
picker.setOnTimeChangedListener(new
TimePicker.OnTimeChangedListener() {
public void
onTimeChanged(TimePicker view, int hourOfDay, int
minute) {
if
(!timeChanged) {
hours.setCurrentItem(hourOfDay,
true);
mins.setCurrentItem(minute,
true); }
}
});
}
private void addChangingListener(final WheelView
wheel, final String label) {
wheel.addChangingListener(new
OnWheelChangedListener() {
public void
onChanged(WheelView wheel, int oldValue, int newValue) {
//wheel.setLabel(newValue
!= 1 ? label + "s" : label);
