Android TimePicker example

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="fill_parent"
    android:orientation="vertical" >
 
    <Button
        android:id="@+id/btnChangeTime"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Change Time" />
 
    <TextView
        android:id="@+id/lblTime"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Current Time (H:M): "
        android:textAppearance="?android:attr/textAppearanceLarge" />
 
    <TextView
        android:id="@+id/tvTime"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text=""
        android:textAppearance="?android:attr/textAppearanceLarge" />
 
    <TimePicker
        android:id="@+id/timePicker1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />
 
</LinearLayout>

TimePickerDemoActivity.java

package com.cjp.timepickerdemo;


import java.util.Calendar;
import android.app.Activity;
import android.app.Dialog;
import android.app.TimePickerDialog;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
import android.widget.TimePicker;


public class TimePickerDemoActivity extends Activity {
private TextView tvDisplayTime;
private TimePicker timePicker1;
private Button btnChangeTime;
 
private int hour;
private int minute;
 
static final int TIME_DIALOG_ID = 999;
 
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
 
setCurrentTimeOnView();
addListenerOnButton();
 
}
 
// display current time
public void setCurrentTimeOnView() {
 
tvDisplayTime = (TextView) findViewById(R.id.tvTime);
timePicker1 = (TimePicker) findViewById(R.id.timePicker1);
 
final Calendar c = Calendar.getInstance();
hour = c.get(Calendar.HOUR_OF_DAY);
minute = c.get(Calendar.MINUTE);
 
// set current time into textview
tvDisplayTime.setText(
                    new StringBuilder().append(pad(hour))
                                       .append(":").append(pad(minute)));
 
// set current time into timepicker
timePicker1.setCurrentHour(hour);
timePicker1.setCurrentMinute(minute);
 
}
 
public void addListenerOnButton() {
 
btnChangeTime = (Button) findViewById(R.id.btnChangeTime);
 
btnChangeTime.setOnClickListener(new OnClickListener() {
 
@Override
public void onClick(View v) {
 
showDialog(TIME_DIALOG_ID);
 
}
 
});
 
}
 
@Override
protected Dialog onCreateDialog(int id) {
switch (id) {
case TIME_DIALOG_ID:
// set time picker as current time
return new TimePickerDialog(this, 
                                        timePickerListener, hour, minute,false);
 
}
return null;
}
 
private TimePickerDialog.OnTimeSetListener timePickerListener = 
            new TimePickerDialog.OnTimeSetListener() {
public void onTimeSet(TimePicker view, int selectedHour,
int selectedMinute) {
hour = selectedHour;
minute = selectedMinute;
 
// set current time into textview
tvDisplayTime.setText(new StringBuilder().append(pad(hour))
.append(":").append(pad(minute)));
 
// set current time into timepicker
timePicker1.setCurrentHour(hour);
timePicker1.setCurrentMinute(minute);
 
}
};
 
private static String pad(int c) {
if (c >= 10)
  return String.valueOf(c);
else
  return "0" + String.valueOf(c);
}
}