Hello,This is me!

Sanjay Yadav

Web Designer Android Developer Cloud Computing

Tuesday 21 November 2017

Android Project to creates a Alarm clock

  • November 21, 2017
  • by

Creating a New project:


To Download the project click on  Download button:








  • Open Android Studio and then click on File -> New -> New project.
new project
  • Then type the Application name as “ex.no.11″ and click Next. 
application-name-11
  • Then select the Minimum SDK as shown below and click Next.
minimum sdk
  • Then select the Empty Activity and click Next. 
empty activity
  • Finally click Finish.
finish
  • It will take some time to build and load the project.
  • After completion it will look as given below.
new

Creating Second Activity for the Android Application:

  • Click on File -> New -> Activity -> Empty Activity.
New activity
  • Type the Activity Name as AlarmReceiver and click Finish button.
AlarmActivity
  • Thus Second Activity For the application is created.

Designing layout for the Android Application:

  • Click on app -> res -> layout -> activity_main.xml.
activity_main
  • Now click on Text as shown below.
text
  • Then delete the code which is there and type the code as given below

      Code for Activity_main.xml
        1
        2
        3
        4
        5
        6
        7
        8
        9
        10
        11
        12
        13
        14
        15
        16
        17
        18
        19
        20
        21
        22
        <?xml version="1.0" encoding="utf-8"?>
        <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="vertical">
         
            <TimePicker
                android:id="@+id/timePicker"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center" />
         
            <ToggleButton
                android:id="@+id/toggleButton"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:layout_margin="20dp"
                android:checked="false"
                android:onClick="OnToggleClicked" />
         
        </LinearLayout>

  • Now click on Design and your application will look as given below.
design-11
  • So now the designing part is completed.

Changes in Manifest for the Android Application:

  • Click on app -> manifests -> AndroidManifest.xml
manifest-11-a
  • Now change the activity tag to receiver tag in the AndroidManifest.xml file as shown below
manifest-11

Code for AndroidManifest.xml:


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.exno11" >
    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        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>
        <receiver android:name=".AlarmReceiver" >
        </receiver>
    </application>
</manifest>
  • So now the changes are done in the Manifest.

Java Coding for the Android Application:

Java Coding for Main Activity:

  • Click on app -> java -> com.example.exno11 -> MainActivity.
MainActivity

  • Then delete the code which is there and type the code as given below.
  • Code for MainActivity.java:

    • 1
    2
    3
    4
    5
    6
    7
    8
    9
    10
    11
    12
    13
    14
    15
    16
    17
    18
    19
    20
    21
    22
    23
    24
    25
    26
    27
    28
    29
    30
    31
    32
    33
    34
    35
    36
    37
    38
    39
    40
    41
    42
    43
    44
    45
    46
    47
    48
    49
    50
    51
    52
    53
    54
    55
    56
    57
    package com.example.exno11;
    import android.app.AlarmManager;
    import android.app.PendingIntent;
    import android.content.Intent;
    import android.os.Bundle;
    import android.support.v7.app.AppCompatActivity;
    import android.view.View;
    import android.widget.TimePicker;
    import android.widget.Toast;
    import android.widget.ToggleButton;
    import java.util.Calendar;
    public class MainActivity extends AppCompatActivity
    {
        TimePicker alarmTimePicker;
        PendingIntent pendingIntent;
        AlarmManager alarmManager;
        @Override
        protected void onCreate(Bundle savedInstanceState)
        {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
            alarmTimePicker = (TimePicker) findViewById(R.id.timePicker);
            alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
        }
        public void OnToggleClicked(View view)
        {
            long time;
            if (((ToggleButton) view).isChecked())
            {
                Toast.makeText(MainActivity.this, "ALARM ON", Toast.LENGTH_SHORT).show();
                Calendar calendar = Calendar.getInstance();
                calendar.set(Calendar.HOUR_OF_DAY, alarmTimePicker.getCurrentHour());
                calendar.set(Calendar.MINUTE, alarmTimePicker.getCurrentMinute());
                Intent intent = new Intent(this, AlarmReceiver.class);
                pendingIntent = PendingIntent.getBroadcast(this, 0, intent, 0);
                time=(calendar.getTimeInMillis()-(calendar.getTimeInMillis()%60000));
                if(System.currentTimeMillis()>time)
                {
                    if (calendar.AM_PM == 0)
                        time = time + (1000*60*60*12);
                    else
                        time = time + (1000*60*60*24);
                }
                alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, time, 10000, pendingIntent);
            }
            else
            {
                alarmManager.cancel(pendingIntent);
                Toast.makeText(MainActivity.this, "ALARM OFF", Toast.LENGTH_SHORT).show();
            }
        }
    }

  • So now the Coding part of Main Activity is completed.

Java Coding for Alarm Receiver:

  • Click on app -> java -> com.example.exno11 -> AlarmReceiver.
AlarmActivity-java
  • Then delete the code which is there and type the code as given below.
Code for AlarmReceiver.java:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
package com.example.exno11;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.media.Ringtone;
import android.media.RingtoneManager;
import android.net.Uri;
import android.widget.Toast;
public class AlarmReceiver extends BroadcastReceiver
{
    @Override
    public void onReceive(Context context, Intent intent)
    {
        Toast.makeText(context, "Alarm! Wake up! Wake up!", Toast.LENGTH_LONG).show();
        Uri alarmUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_ALARM);
        if (alarmUri == null)
        {
            alarmUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
        }
        Ringtone ringtone = RingtoneManager.getRingtone(context, alarmUri);
        ringtone.play();
    }
}

  • So now the Coding part of Alarm Receiver is also completed.
  • Now run the application to see the output.

Output:

android application      
      

Result:

              Thus Android Application that creates Alarm Clock is developed and executed successfully.










Tags:

Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna Veniam, quis nostrud exerci tation ullamcorper suscipit lobortis nisl ut aliquip ex ea commodo consequat.

0 comments:

Post a Comment

SANJAY YADAV
+123-456-789
Jalandhar, India

SEND ME A MESSAGE

Search This Blog
Powered by Blogger.

Blog Archive