Android 如何向其他活动发送警报时间

嗨，我是android新手，我想创建一个闹钟，当发现闹钟时间时会响起来，但不幸的是，我无法弥补。请帮助我解决这个问题。这是我的MainActivity.class和SoundActivity.class文件。有人能告诉我如何设置吗？感谢您包com.toprecur.myalarm

    package com.toprecur.myalarm;

    import java.util.Calendar;
    import java.util.GregorianCalendar;
    import android.app.Activity;
    import android.app.AlarmManager;
    import android.app.PendingIntent;`enter code here`
    import android.content.Intent;
    import android.os.Bundle;
    import android.view.Menu;
    import android.view.View;
    import android.view.View.OnClickListener;
    import android.view.ViewDebug.FlagToString;
    import android.widget.Button;
    import android.widget.TextView;
    import android.widget.TimePicker;
    import android.widget.Toast;

    public class MainActivity extends Activity {

        protected static final TimePicker timePicker1 = null;
        protected static final Calendar calendar = null;
        protected String FLAG_ACTIVITY_NEW_TASK;

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

                private TextView tvDisplayTime;

                @Override
                public void onClick(View v) {

                    AlarmManager alarmManager = (AlarmManager) getBaseContext()
                            .getSystemService(ALARM_SERVICE);

                    TimePicker tpTime = (TimePicker) findViewById(R.id.tp_time);

                    int hour = tpTime.getCurrentHour();
                    int minute = tpTime.getCurrentMinute();

                    GregorianCalendar calendar = new GregorianCalendar(hour,
                            minute, 0);

                    long alarm_time = calendar.getTimeInMillis();

                    Intent intent = new Intent(MainActivity.this,
                            SoundActivity.class);

                    PendingIntent operation = PendingIntent.getActivity(
                            getBaseContext(), 0, intent,
                            Intent.FLAG_ACTIVITY_NEW_TASK);

                alarmManager.set(AlarmManager.RTC_WAKEUP, alarm_time,operation);

         Toast.makeText(getBaseContext(), "Alarm is setsuccessfully",Toast.LENGTH_SHORT).show();
                }
            };
            OnClickListener quitClickListener = new OnClickListener() {
                @Override
                public void onClick(View v) {
                    finish();
                }
            };

            Button btnSetAlarm = (Button) findViewById(R.id.btn_set_alarm);
            btnSetAlarm.setOnClickListener(setClickListener);

            Button btnQuitAlarm = (Button) findViewById(R.id.btn_quit_alarm);
            btnQuitAlarm.setOnClickListener(quitClickListener);
        }

        protected Object pad(int minute) {
            // TODO Auto-generated method stub
            return null;
        }

        @Override
        public boolean onCreateOptionsMenu(Menu menu) {
            // Inflate the menu; this adds items to the action bar if it is present.
            getMenuInflater().inflate(R.menu.main, menu);
            return true;
        }

    }


and my SoundActivity is as follows below here i want to play music when the alarm sound would rang i have tried lot of methods to get the alarm setted time but i didn't got from my MainActivity.class file to SoundActivity.class file any body can help me out please. thank you.

package com.toprecur.myalarm;

import android.app.Activity;
import android.app.Notification;
import android.content.Intent;
import android.media.MediaPlayer;
import android.net.Uri;
import android.os.Bundle;
import android.view.Menu;

public class SoundActivity extends Activity {

    private MediaPlayer mPlay;
    public Intent intent;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_sound);


        MediaPlayer mPlay = MediaPlayer.create(this,R.raw.alarm_rooster);
        mPlay.start();
        Uri soundURI = Uri
                .parse("android.resource://course.examples.Notification.StatusBarWithCustomView/"
                        + R.raw.alarm_rooster);
        Notification.Builder notificationBuilder = new Notification.Builder(
                getApplicationContext()).setSound(soundURI);

    }

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

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您应该使用putExtra方法发送数据，并在其他活动中使用getExtra方法接收数据。

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我使用putExtra和getIntExtra得到了问题的答案，最后我得到了结果。多亏了法鲁克·阿尔沙德

Intent intent = new Intent(AlarmClock.ACTION_SET_ALARM)
                    //.putExtra(AlarmClock.EXTRA_MESSAGE, message)
                    .putExtra(AlarmClock.EXTRA_HOUR, hour)
                    .putExtra(AlarmClock.EXTRA_MINUTES, minute);

                startActivity(intent);

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我用过那些方法，但我没有做到