How To Create Calendar View In Android Application

Introduction

Android is one of the most popular operating systems for mobile. Users can access the internet through the browser. Each Android mobile has calendar view. Calendar is an important thing to handle the events and commitments. So, I will show you how to create calendar view in Android applications using android studio. Android is a kernel based operating system. It allows the user to modify the GUI components and source code.

Requirements

• Android studio
• Little bit XML and JAVA Knowledge.
• Android emulator (or) android mobile
• Download link (android studio)

Steps should be followed

Carefully follow my steps to create calendar view in android applications using android studio and I have included the source code below.

Step 1

Open the android studio start the new project.



Step 2

Put the application name and company domain. If you wish to use c++ for code the project , mark the Include c++ support then click next.



Step 3

Select the android minimum SDK. After you chose the minimum SDK it will show approximate percentage of people use the that sdk then click next.



Step 4

Choose the basic activity then click next.



Step 5

Put the activity name and layout name. Android studio basically takes the java class name is what you provide the activity name and click finish.



Step 6

Go to activity_main.xml then click the text bottom. This xml file contains the designing code for android app. Into the activity_main.xml copy and paste the below code.

Activity_main.xml code

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout 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="ganeshannt.calendarview.MainActivity">

    <TextView
        android:id="@+id/date"
        android:layout_width="0dp"
        android:layout_height="51dp"
        android:text="Date"
        android:textAlignment="center"
        android:textSize="45dp"
        android:visibility="visible"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintHorizontal_bias="0.0"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.219" />

    <Button
        android:id="@+id/btngocalendar"
        android:layout_width="266dp"
        android:layout_height="47dp"
        android:text="Go to calendar"
        tools:layout_editor_absoluteX="47dp"
        tools:layout_editor_absoluteY="8dp" />

</android.support.constraint.ConstraintLayout>

 

Step 7

Create new calendar_layout.xml file (File ⇒ New ⇒Activity⇒Empty_activity).

Go to calendar_layout.xml then click the text bottom. This xml file contains the designing code for android app. Into the calendar_layout.xml copy and paste the below code

calendar_layout.xml code

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"
    android:layout_height="match_parent">

    <CalendarView
        android:id="@+id/calendarView"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />
</LinearLayout>

 

Step 8

Into the MainActivity.java copy and paste the below code.java programming is the backend language for android. Do not replace your package name otherwise app will not run.

MainActivity.java code

package ganeshannt.calendarview;

import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity {

    private static final String TAG = "MainActivity";

    private TextView thedate;
    private Button btngocalendar;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        thedate = (TextView) findViewById(R.id.date);
        btngocalendar = (Button) findViewById(R.id.btngocalendar);

        Intent incoming = getIntent();
        String date = incoming.getStringExtra("date");
        thedate.setText(date);

        btngocalendar.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(MainActivity.this,CalendarActivity.class);
                startActivity(intent);
            }
        });
    }
}

 

Step 9

Create new CalendarActivity.java file (File ⇒ New ⇒Java class).

Into the CalendarActivity.java copy and paste the below code.java programming is the backend language for android. Do not replace your package name otherwise app will not run.

CalendarActivity.java code

package ganeshannt.calendarview;

import android.content.Intent;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.widget.CalendarView;

/**
 * Created by ganesh on 6/10/2017.
 */

public class CalendarActivity extends AppCompatActivity {

    private  static final String TAG = "CalendarActivity";
    private CalendarView mCalendarView;
    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.calendar_layout);
        mCalendarView = (CalendarView) findViewById(R.id.calendarView);
        mCalendarView.setOnDateChangeListener(new CalendarView.OnDateChangeListener() {
            @Override
            public void onSelectedDayChange(CalendarView CalendarView, int year, int month, int dayOfMonth) {
              String date = year + "/" + month + "/"+ dayOfMonth ;
                Log.d(TAG, "onSelectedDayChange: yyyy/mm/dd:" + date);
                Intent intent = new Intent(CalendarActivity.this,MainActivity.class);
                intent.putExtra("date",date);
                startActivity(intent);

            }
        });
    }
}

Step 10

Add the calendaractivity into the androidmanifest.xml so add below code into the AndroidManifest.xml.

AndroidManifest.xml code

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="ganeshannt.calendarview">

    <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">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity android:name=".CalendarActivity"></activity>
    </application>

</manifest>

Step 11

 

This is our user interface of the application. Click the make project option.



Deliverables

Here calendar view in android application was successfully created and executed.











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