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  • Set Alarm Using TimePicker in Android

    @ajmer.singh
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    This tutorial will help you in creating an android application to set alarm using TimePicker. This is a basic android tutorial which will make you familiar with Intents , Pending Intents and BroadcastReceiver.

    Step 1: Create an android Project Name TimeActivity

    Step 2: Create main the layout file activity_main.xml

    Step 3:Set Button,TimePicker and TextView

    Step 4:Then SetAlarm by creating the pending intent

    Step 5:Create the BroadcastReceiver to recive and set the Ringtone

    step 6: Set user permissions in manifest file

    First create the layout file set buttons and textview..

    then create the mainactivity .

    Sample code::

    1.  package com.example.timeactivity;
    2.  
    3. import java.util.Calendar;
    4.  
    5. import android.app.Activity;
    6. import android.app.AlarmManager;
    7. import android.app.PendingIntent;
    8. import android.app.TimePickerDialog;
    9. import android.app.TimePickerDialog.OnTimeSetListener;
    10. import android.content.Context;
    11. import android.content.Intent;
    12. import android.os.Bundle;
    13. import android.view.View;
    14. import android.view.View.OnClickListener;
    15. import android.widget.Button;
    16. import android.widget.TextView;
    17. import android.widget.TimePicker;
    18.  
    19. public class MainActivity extends Activity {
    20.  
    21.  TimePicker myTimePicker;
    22.  Button buttonstartSetDialog;
    23.  TextView textAlarmPrompt;
    24.  
    25.  TimePickerDialog timePickerDialog;
    26.  
    27.  final static int RQS_1 = 1;
    28.  
    29.  
    30.     @Override
    31.     public void onCreate(Bundle savedInstanceState) {
    32.         super.onCreate(savedInstanceState);
    33.         setContentView(R.layout.activity_main);
    34.         startActivity(new Intent(MainActivity.this,Ringtones.class));
    35.  
    36.         textAlarmPrompt = (TextView)findViewById(R.id.alarmprompt);
    37.  
    38.         buttonstartSetDialog = (Button)findViewById(R.id.startSetDialog);
    39.         buttonstartSetDialog.setOnClickListener(new OnClickListener(){
    40.  
    41.    @Override
    42.    public void onClick(View v) {
    43.     textAlarmPrompt.setText("");
    44.     openTimePickerDialog(false);
    45.  
    46.    }});
    47.  
    48.     }
    49.  
    50.  
    51.  private void openTimePickerDialog(boolean is24r){
    52.   Calendar calendar = Calendar.getInstance();
    53.  
    54.   timePickerDialog = new TimePickerDialog(
    55.     MainActivity.this, 
    56.     onTimeSetListener, 
    57.     calendar.get(Calendar.HOUR_OF_DAY), 
    58.     calendar.get(Calendar.MINUTE), 
    59.     is24r);
    60.   timePickerDialog.setTitle("Set Alarm Time");  
    61.  
    62.   timePickerDialog.show();
    63.  
    64.  }
    65.  
    66.     OnTimeSetListener onTimeSetListener
    67.     = new OnTimeSetListener(){
    68.  
    69.   @Override
    70.   public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
    71.  
    72.    Calendar calNow = Calendar.getInstance();
    73.    Calendar calSet = (Calendar) calNow.clone();
    74.  
    75.    calSet.set(Calendar.HOUR_OF_DAY, hourOfDay);
    76.    calSet.set(Calendar.MINUTE, minute);
    77.    calSet.set(Calendar.SECOND, 0);
    78.    calSet.set(Calendar.MILLISECOND, 0);
    79.  
    80.    if(calSet.compareTo(calNow) <= 0){
    81.  
    82.     calSet.add(Calendar.DATE, 1);
    83.    }
    84.  
    85.    setAlarm(calSet);
    86.   }};
    87.  
    88.  private void setAlarm(Calendar targetCal){
    89.  
    90.   textAlarmPrompt.setText(
    91.     "\n\n\n"
    92.     + "AlarmSet  " + targetCal.getTime() + "\n"
    93.     + "\n");
    94.  
    95.   Intent intent = new Intent(getBaseContext(), AlarmReceiver.class);
    96.   PendingIntent pendingIntent = PendingIntent.getBroadcast(getBaseContext(), RQS_1, intent, 0);
    97.   AlarmManager alarmManager = (AlarmManager)getSystemService(Context.ALARM_SERVICE);
    98.   alarmManager.set(AlarmManager.RTC_WAKEUP, targetCal.getTimeInMillis(), pendingIntent);
    99.  
    100.  }
    101.  
    102. }

    Then create the AlarmReceiver extending BroadcastReceiver.

    1. import android.content.BroadcastReceiver;
    2. import android.content.Context;
    3. import android.content.Intent;
    4. import android.media.Ringtone;
    5. import android.media.RingtoneManager;
    6. import android.net.Uri;
    7. import android.os.Vibrator;
    8. import android.widget.Toast;
    9.  
    10. public class AlarmReceiver extends BroadcastReceiver {
    11.  
    12.     @Override
    13.     public void onReceive(Context context, Intent arg1) {
    14.         Toast.makeText(context, "Alarm received!", Toast.LENGTH_LONG).show();
    15.  
    16.         Uri notification = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_RINGTONE);
    17.         Ringtone r = RingtoneManager.getRingtone(context, notification);
    18.         r.play();
    19.  
    20.         Vibrator vibrator = (Vibrator)context 
    21.                 .getSystemService(Context.VIBRATOR_SERVICE);
    22.         vibrator.vibrate(5000);
    23.     }
    24.  
    25. }
    26.

    TimePicker alarm in android set alarm ringtonemanager vibrator
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