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In this tutorial we shall be covering Android's TimePickerDialog API with the help
of an example.

Final screen of this DatePickerDialog example would look like the below image:
















In the following section I shall be covering through various files I coded/used
to get this example working. This example has only two views such as a EditView
and a TimePickerDialog widget from Android API.

Following is the main layout of this example.

main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
    <EditText android:id="@+id/editText1" 
              android:layout_width="200dip" 
              android:layout_height="wrap_content" 
              android:text="">
    </EditText>
    <Button android:text="Time" 
            android:id="@+id/button1" 
            android:layout_width="wrap_content" 
            android:layout_height="wrap_content">
    </Button>
</LinearLayout>



Below file will give you some additional information like which
version of Android API I am using for this example, such as
minSdkVersion, intent-filters, activity name etc.

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="com.techienjoy.example"
      android:versionCode="1"
      android:versionName="1.0">
    <uses-sdk android:minSdkVersion="7" />

    <application android:icon="@drawable/icon" android:label="@string/app_name">
        <activity android:name=".TimePickerDalogExample"
                  android:label="@string/app_name">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

    </application>
</manifest>




TimePickerDalogExample.java

package com.techienjoy.example;

import java.util.StringTokenizer;

import android.app.Activity;
import android.app.TimePickerDialog;
import android.app.TimePickerDialog.OnTimeSetListener;
import android.content.res.Resources.Theme;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TimePicker;

public class TimePickerDalogExample extends Activity {

    private EditText edTxt = null;
    private TimePickerDialog timePickDialog = null;

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        edTxt = (EditText) findViewById(R.id.editText1);
        Button but1 = (Button) findViewById(R.id.button1);

        but1.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                String time = edTxt.getText().toString();

                if (time != null && !time.equals("")) {
                    StringTokenizer st = new StringTokenizer(time, ":");
                    String timeHour = st.nextToken();
                    String timeMinute = st.nextToken();

                    timePickDialog = new TimePickerDialog(v.getContext(),
                            new TimePickHandler(), Integer.parseInt(timeHour),
                            Integer.parseInt(timeMinute), true);
                } else {
                    timePickDialog = new TimePickerDialog(v.getContext(),
                            new TimePickHandler(), 10, 45, true);
                }

                timePickDialog.show();
            }
        });
    }

    private class TimePickHandler implements OnTimeSetListener {

        @Override
        public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
            edTxt.setText(hourOfDay + ":" + minute);
            timePickDialog.hide();

        }

    }
}



Above source code is just to accomplish this example and get it working as
soon as possible. You may find coding a bit monolithic and not doing any
useful stuffs in general.

TimePickerDialog widget from Android API can be used as it is as I have
shown in the source code above. inner class TimePickHandler is used for receiving
any callback on time set button is clicked.

If you would like to share your thoughts on this, please write to us @
usingframeworks @ gmail dot com
If anything missed out , please let me know at techienjoy at yahoo . com
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