Android - Simple Time Picker Dialog

Submitted by razormist on Wednesday, February 7, 2018 - 18:08.

Operating System

In this tutorial we will try to create a Simple Time Picker Dialog using Android. This simple app can be used in providing some basic information about a person. Android is basically a piece of software which allows your hardware to function. The android is an open source operating system it's free and user friendly to mobile developers. Android is available to any devices such as TV, phones, watches etc. So let's now do the coding...

Getting Started:

First you will have to download & install the Android Development IDE (Android Studio or Eclipse). Android Studio is an open source development feel free to develop your things. Here's the link for the Android Studio https://developer.android.com/studio/index.html.

Layout Design

We will now create the design for the application, first locate the layout file called activity_main.xml, this is the default name when create a new activity. Then write these codes inside your layout file.

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.razormist.simpletimepickerdialog.MainActivity">
 
    <Button
        android:id="@+id/btn_date"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Show Date Picker"
        android:layout_centerInParent="true"/>
 
    <Button
        android:id="@+id/btn_time"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Show Time Picker"
        android:layout_centerInParent="true"
        android:layout_below="@+id/btn_date"/>
 
</RelativeLayout>

Android Manifest File

The Android Manifest file provides essential information about your app to the Android system in which the system must required before running the code. It describe the overall information about the application. It contains some libraries that needed to access the several method within the app.

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.razormist.simpletimepickerdialog">
 
    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity"
            android:configChanges="orientation"
            android:screenOrientation="portrait">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
 
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>
 
</manifest>

The Main Function

This code contains the main function of the application. This code will allow the user to select a desire time and date when clicking the button. To start with first locate your MainActivity java file and open it, then write these some important variables inside the MainActivity class.

Button btn_date, btn_time;
DatePickerDialog datePickerDialog;
TimePickerDialog timePickerDialog;

Then write these several method inside the activity class to make the apps work properly.

 public void ShowDatePicker(){
        btn_date = (Button)findViewById(R.id.btn_date);
        btn_date.setOnClickListener(new View.OnClickListener() {
            @RequiresApi(api = Build.VERSION_CODES.N)
            @Override
            public void onClick(View v) {
                Calendar c_date = Calendar.getInstance();
                int year = c_date.get(Calendar.YEAR);
                int month = c_date.get(Calendar.MONTH);
                int day = c_date.get(c_date.DAY_OF_MONTH);
 
                datePickerDialog = new DatePickerDialog(MainActivity.this, new DatePickerDialog.OnDateSetListener() {
                    @Override
                    public void onDateSet(DatePicker view, int year, int month, int dayOfMonth) {
                        Toast.makeText(MainActivity.this, "Month: " + month + " Day: " + dayOfMonth + " Year: " + year, Toast.LENGTH_SHORT).show();
                    }
                }, year, month, day);
 
                datePickerDialog.show();
            }
        });
    }
 
    public void ShowTimePicker(){
        btn_time = (Button)findViewById(R.id.btn_time);
        btn_time.setOnClickListener(new View.OnClickListener() {
            @RequiresApi(api = Build.VERSION_CODES.N)
            @Override
            public void onClick(View v) {
                Calendar c_time = Calendar.getInstance();
                int hour = c_time.get(Calendar.HOUR);
                int minute = c_time.get(Calendar.MINUTE);
 
                timePickerDialog = new TimePickerDialog(MainActivity.this, new TimePickerDialog.OnTimeSetListener() {
                    @Override
                    public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
                        Toast.makeText(MainActivity.this, "Hour: " + hourOfDay + " Minute: " + minute, Toast.LENGTH_SHORT).show();
                    }
                },hour, minute, false);
 
                timePickerDialog.show();
            }
        });
    }

Finally, initialize all the methods inside the onCreate method to run the application.

ShowDatePicker();
ShowTimePicker();

Try to run the app and see if it worked. There you have it we have created a Simple Time Picker Dialog using Android. I hope that this tutorial help you to what you are looking for. For more updates and tutorials just kindly visit this site. Enjoy Coding!!!

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