android - 如何以编程方式在 Android 中设置闹钟？

Question

以下是我的代码，任何人都可以告诉我为什么它不起作用。我是从 this tutorial 学到的.但它不起作用，我们将不胜感激。

我的代码是

import java.util.Calendar;

import android.app.Activity;
import android.app.AlarmManager;
import android.app.ListActivity;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.Toast;


public class Notify extends Activity {
    Button btn;

    /** Called when the activity is first created. */
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.layout.nit);
        Calendar cal=Calendar.getInstance();
        cal.set(Calendar.MONTH,6);
        cal.set(Calendar.YEAR,2011);
        cal.set(Calendar.DAY_OF_MONTH,29);
        cal.set(Calendar.HOUR_OF_DAY,17);
        cal.set(Calendar.MINUTE,30);

        //String[] dude=new String[] {"nitin","avi","aman","rahul","pattrick","minkle","manmohan","nitin","nitin"};

        //setListAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_expandable_list_item_1,dude));
        //getListView().setTextFilterEnabled(true);

        //String[] dude1=new String[] {"nitin","avi","aman","rahul","pattrick","minkle","manmohan"};

        Intent intent = new Intent(this, Mote.class);
        PendingIntent pendingIntent = PendingIntent.getBroadcast(this.getApplicationContext(), 1253, intent, PendingIntent.FLAG_UPDATE_CURRENT|  Intent.FILL_IN_DATA);

        AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);

        alarmManager.set(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(),pendingIntent );
        Toast.makeText(this, "Alarm worked.", Toast.LENGTH_LONG).show();
    }

}

我的 Receiver 类是

import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.widget.Toast;

public class Mote extends BroadcastReceiver{

    public void onReceive(Context context, Intent intent) {
        // TODO Auto-generated method stub

        Toast.makeText(context, "Alarm worked.", Toast.LENGTH_LONG).show();
        int icon = R.drawable.icon;
        CharSequence tickerText = "Hello you have to take medicine I am Nitin Sharma";
        long when = System.currentTimeMillis();

        //Notification notification = new Notification(icon, tickerText,when );

        CharSequence contentTitle = "My notification";
        CharSequence contentText = "Hello World!";


        //notification.setLatestEventInfo(context, contentTitle, contentText, contentIntent);
        final int NOTIF_ID = 1234;
        NotificationManager notofManager = (NotificationManager)context. getSystemService(Context.NOTIFICATION_SERVICE);
        // Notification note = new Notification(R.drawable.face,"NEW ACTIVITY", System.currentTimeMillis());
        Intent notificationIntent = new Intent(context, Alset.class);
        PendingIntent contentIntent = PendingIntent.getActivity(context,0, notificationIntent, 0);
        Notification notification = new Notification(icon, tickerText,when );
        //Notification notification1 = new Notification(R.drawable.icon, "Wake up alarm", System.currentTimeMillis());
        notification.setLatestEventInfo(context, contentTitle, contentText, contentIntent);
        notification.flags = Notification.FLAG_INSISTENT;
        notification.defaults |= Notification.DEFAULT_SOUND;
        //notification.setLatestEventInfo(context, "My Activity", "This will runs on button click", contentIntent);
        notofManager.notify(NOTIF_ID,notification);

        //PendingIntent contentIntent = PendingIntent.getActivity(context, 0, new Intent(context, MainActivity.class), 0);
        //notification.setLatestEventInfo(context, "Context Title", "Context text", contentIntent);
        //notification.flags = Notification.FLAG_INSISTENT;
    }



}

Answer 1

我想你想将闹钟设置在 6 月 26 日而不是 7 月 26 日。如果是这样，则将 cal.set(Calendar.MONTH,6); 更改为 cal.set(Calendar.MONTH,5); 因为月份是从零开始的。如果您打算在 7 月 26 日触发警报，那么预计警报将在日期时间为 2011 年 7 月 26 日 17:30 时触发