Set Time In Android App Using TimePicker In Android Studio

Introduction

This blog explains to how to set the time in an Android app, using TimePicker in Android Studio.

Requirements

• Android Studio 2.1.3

If you want to set the time in an Android app, you should follow the steps given below.

Step 1

Now, open Android Studio and you can choose the file, followed by New. Afterwards, choose New Project.



Step 2

Here, you can create your application's name and choose where your project is stored on the location, and click Next button.



Now, we can select the version of Android -- Target Android Devices.



Step 3

Here, we can add the activity and click Next button.



Now, we can write the activity name and click Finish button.



Step 4

Now, open your project and you will go to activity_main.xml and afterwards, you will build the design. You should choose toolbox and if you want some options (TimePicker,TextView), use the drag and drop method.



Now, we can see the Graphical User Interface design.



Step 5

Here, you need to build on the design and write .XML code.

activity_mai.xml code.

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" tools:context="xyz.rvconstructions.www.timepickerapp.MainActivity">
    <TimePicker android:id="@+id/simpleTimePicker" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerHorizontal="true" android:layout_marginTop="50dp" android:background="#998f00" android:padding="20dp" android:timePickerMode="spinner" />
    <TextView android:id="@+id/time" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerHorizontal="true" android:text="Time Is ::" android:textColor="#8c0099" android:textSize="20sp" android:textStyle="bold" />
</RelativeLayout>

Step 6

Now, you will go to the MainActivity.java page and build Java code.

First of all, you will declare a file, which is an extension file.



Now, we can see MainActivity.java code.

package xyz.rvconstructions.www.timepickerapp;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.app.TimePickerDialog;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.TextView;
import android.widget.TimePicker;
import android.widget.Toast;
public class MainActivity extends AppCompatActivity {
    TextView time;
    TimePicker firstTimePicker;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        time = (TextView) findViewById(R.id.time);
        firstTimePicker = (TimePicker) findViewById(R.id.simpleTimePicker);
        firstTimePicker.setIs24HourView(false); // used to display AM/PM mode
        // perform set on time changed listener event
        firstTimePicker.setOnTimeChangedListener(new TimePicker.OnTimeChangedListener() {
            @Override
            public void onTimeChanged(TimePicker view, int hourOfDay, int minute) {
                // display a toast with changed values of time picker
                Toast.makeText(getApplicationContext(), hourOfDay + " " + minute, Toast.LENGTH_SHORT).show();
                time.setText(" Now Time is :: " + hourOfDay + " : " + minute);
            }
        });
    }
}

Step 7

Here, you will go to run it and select Run-> Run app option.



Here, you will choose Emulator or the devices; it is Nokia Nokia _X.



Step 8

Here, you can see the output.



Now, you will set the PM time and afterwards, you will see the output, as given below.