CODEWITHSUNDEEP
androidtimeralarmmanageralarm
raghuvaran
raghuvaran

Reputation: 1

How to play alarm on specified time in android?

I'm a beginner to android development.

I'm developing an app that need to play alarm exactly from 8 hrs from the time which am clicking a button.

I've created a line which gets the current time but am stuck to calculate 8 hrs from current time and play the alarm tone.

Here's my code:

import android.os.Bundle;
import android.app.Activity;
import android.widget.ToggleButton; 
import java.text.SimpleDateFormat;
import java.util.Calendar;
import android.widget.Toast;
import android.view.View.OnClickListener;
import android.view.*;

public class MainActivity extends Activity {

    public ToggleButton tgb1;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);


        tgb1 = (ToggleButton) findViewById(R.id.toggleButton1);

        tgb1.setOnClickListener(new OnClickListener(){
            @Override
            public void onClick(View arg0) {


        if (tgb1.getText().toString().equals("Click to Turn Off"))
        {

            Calendar c = Calendar.getInstance();
            SimpleDateFormat sdf = new SimpleDateFormat("hh:mm");
            String strDate = sdf.format(c.getTime());
            c.add(Calendar.HOUR,8);

But I don't know to proceed further from here. Kindly help me in calculating 8 hrs from current time and play alarm tone.

Waiting for your kind response.

Thanks.

Upvotes: 0

Views: 178

Answers (2)

capt.swag
capt.swag

Reputation: 10661

You have to use AlarmManager to run your code at a later time. According to Android documentation

The Alarm Manager is intended for cases where you want to have your application code run at a specific time, even if your application is not currently running.

Since you already have the Calendar object c

AlarmManager am = (AlarmManager) getSystemService(Context.ALARM_SERVICE);

am.set(AlarmManager.RTC_WAKEUP, c.getTimeInMillis(), pendingIntent);

where pendingIntent can have a service Class invoked which plays the audio tone.

Upvotes: 1

David
David

Reputation: 1

You can use AlarmManager.

And this can help you too. Always add (c.Add) minutes/hours/days to the Calendar instance before formatting and assigning value to String because now your "strDate" equals to the actual time without 8 hours added later.

Upvotes: 0

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