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java - Set android alarm clock programmatically

I'm trying to build a personal app that will set alarms in the DeskClock app. I can get it to set alarms for anytime in the current day, But how would I go about setting an alarm for the next day, or later in the week. Looking through the AlarmClock api in android I don't see a normal way to do this. Is this even possible?

Btw this is my code for setting the alarm it might not be pretty, but I am learning as I go.

 package com.netwokz.setit;

    import java.util.Calendar;
    import java.util.GregorianCalendar;

    import android.app.Activity;
    import android.content.Intent;
    import android.os.Bundle;
    import android.provider.AlarmClock;
    import android.view.Menu;
    import android.view.View;
    import android.view.View.OnClickListener;
    import android.widget.Button;
    import android.widget.EditText;

    public class MainActivity extends Activity implements OnClickListener {
    Button btnSetAlarm;
    EditText etHour, etMinute;
    int minute, hour, day;
    Calendar cal;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main_activity);
        btnSetAlarm = (Button) findViewById(R.id.btn_set_alarm);
        etHour = (EditText) findViewById(R.id.etHour);
        etMinute = (EditText) findViewById(R.id.etMinute);
        btnSetAlarm.setOnClickListener(this);

    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.main_activity, menu);
        return true;
    }

    @Override
    public void onClick(View v) {
        switch (v.getId()) {
            case R.id.btn_set_alarm:
                setAlarm();
                break;
        }
    }

    private void setAlarm() {
        cal = new GregorianCalendar();
        cal.setTimeInMillis(System.currentTimeMillis());
        day = cal.get(Calendar.DAY_OF_WEEK);
        hour = cal.get(Calendar.HOUR_OF_DAY);
        minute = cal.get(Calendar.MINUTE);

        Intent i = new Intent(AlarmClock.ACTION_SET_ALARM);
        i.putExtra(AlarmClock.EXTRA_HOUR, hour + Integer.parseInt(etHour.getText().toString()));
        i.putExtra(AlarmClock.EXTRA_MINUTES, minute + Integer.parseInt(etMinute.getText().toString()));
        i.putExtra(AlarmClock.EXTRA_SKIP_UI, true);
        startActivity(i);
    }
}
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1 Answer

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by (71.8m points)

MainActivity.java

public class MainActivity extends Activity {

 ? ?TimePicker myTimePicker;
 ? ?Button buttonstartSetDialog;
 ? ?TextView textAlarmPrompt;
 ? ?TimePickerDialog timePickerDialog;

 ? ?final static int RQS_1 = 1;

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

 ? ? ? ?textAlarmPrompt = (TextView) findViewById(R.id.alarmprompt);

 ? ? ? ?buttonstartSetDialog = (Button) findViewById(R.id.startAlaram);
 ? ? ? ?buttonstartSetDialog.setOnClickListener(new OnClickListener() {

 ? ? ? ? ? ?@Override
 ? ? ? ? ? ?public void onClick(View v) {
 ? ? ? ? ? ? ? ?textAlarmPrompt.setText("");
 ? ? ? ? ? ? ? ?openTimePickerDialog(false);

 ? ? ? ? ? ?}
 ? ? ? ?});

 ? ?}

 ? ?private void openTimePickerDialog(boolean is24r) {
 ? ? ? ?Calendar calendar = Calendar.getInstance();

 ? ? ? ?timePickerDialog = new TimePickerDialog(MainActivity.this,
 ? ? ? ? ? ? ? ?onTimeSetListener, calendar.get(Calendar.HOUR_OF_DAY),
 ? ? ? ? ? ? ? ?calendar.get(Calendar.MINUTE), is24r);
 ? ? ? ?timePickerDialog.setTitle("Set Alarm Time");

 ? ? ? ?timePickerDialog.show();

 ? ?}

 ? ?OnTimeSetListener onTimeSetListener = new OnTimeSetListener() {

 ? ? ? ?@Override
 ? ? ? ?public void onTimeSet(TimePicker view, int hourOfDay, int minute) {

 ? ? ? ? ? ?Calendar calNow = Calendar.getInstance();
 ? ? ? ? ? ?Calendar calSet = (Calendar) calNow.clone();

 ? ? ? ? ? ?calSet.set(Calendar.HOUR_OF_DAY, hourOfDay);
 ? ? ? ? ? ?calSet.set(Calendar.MINUTE, minute);
 ? ? ? ? ? ?calSet.set(Calendar.SECOND, 0);
 ? ? ? ? ? ?calSet.set(Calendar.MILLISECOND, 0);

 ? ? ? ? ? ?if (calSet.compareTo(calNow) <= 0) {
 ? ? ? ? ? ? ? ?// Today Set time passed, count to tomorrow
 ? ? ? ? ? ? ? ?calSet.add(Calendar.DATE, 1);
 ? ? ? ? ? ?}

 ? ? ? ? ? ?setAlarm(calSet);
 ? ? ? ?}
 ? ?};

 ? ?private void setAlarm(Calendar targetCal) {

 ? ? ? ?textAlarmPrompt.setText("

***
" + "Alarm is set "
 ? ? ? ? ? ? ? ?+ targetCal.getTime() + "
" + "***
");

 ? ? ? ?Intent intent = new Intent(getBaseContext(), AlarmReceiver.class);
 ? ? ? ?PendingIntent pendingIntent = PendingIntent.getBroadcast(
 ? ? ? ? ? ? ? ?getBaseContext(), RQS_1, intent, 0);
 ? ? ? ?AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
 ? ? ? ?alarmManager.set(AlarmManager.RTC_WAKEUP, targetCal.getTimeInMillis(),
 ? ? ? ? ? ? ? ?pendingIntent);

 ? ?} ?
}

Reciver.java

public class AlarmReceiver extends BroadcastReceiver {

 ? ?@Override
 ? ?public void onReceive(Context k1, Intent k2) {
 ? ? ? ?// TODO Auto-generated method stub
 ? ? ? ? Toast.makeText(k1, "Alarm received!", Toast.LENGTH_LONG).show();

 ? ?}

}

main_activity.xml

<LinearLayout 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:orientation="vertical"
 ? ?android:padding="10dp" >

 ? ?<Button
 ? ? ? ?android:id="@+id/startAlaram"
 ? ? ? ?android:layout_width="fill_parent"
 ? ? ? ?android:layout_height="wrap_content"
 ? ? ? ?android:text="Set Alaram Time" />

 ? ?<TextView
 ? ? ? ?android:id="@+id/alarmprompt"
 ? ? ? ?android:layout_width="fill_parent"
 ? ? ? ?android:layout_height="wrap_content"
 ? ? ? ?android:textColor="#000000" />

</LinearLayout>

Manifest.xml

<application
 ? ? ? ?android:icon="@drawable/ic_launcher"
 ? ? ? ?android:label="@string/app_name"
 ? ? ? ?android:theme="@style/AppTheme" >
 ? ? ? ?<activity
 ? ? ? ? ? ?android:name=".MainActivity"
 ? ? ? ? ? ?android:label="@string/title_activity_main" >
 ? ? ? ? ? ?<intent-filter>
 ? ? ? ? ? ? ? ?<action android:name="android.intent.action.MAIN" />

 ? ? ? ? ? ? ? ?<category android:name="android.intent.category.LAUNCHER" />
 ? ? ? ? ? ?</intent-filter>
 ? ? ? ?</activity>
 ? ? ? ? <receiver android:name=".AlarmReceiver" android:process=":remote" />
 ? ?</application>

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