如何在Android中设置提醒?

发布于 2024-11-06 12:54:01 字数 129 浏览 0 评论 0原文

我正在尝试为 Android 构建一个日历应用程序。我被夹在中间。我已设法从用户​​那里检索时间和任务等信息。

我不知道如何将其添加到 android 事件中。有类似 setEvent 或类似的东西吗?

I am trying to build a calendar app for Android. I am struck in the middle. I have managed to retrieve the information such as time and task from the user.

I don't know how to add this into android events. Is there anything like setEvent or something similar?

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零度℉ 2024-11-13 12:54:01

不,如果您想将其透明地添加到用户的日历中,它比仅仅调用方法更复杂。

你有几个选择;

  1. 调用在日历上添加事件的意图

    这将弹出日历应用程序并让用户添加事件。您可以传递一些参数来预填充字段:

    日历 cal = Calendar.getInstance();              
    意图intent = new Intent(Intent.ACTION_EDIT);
    Intent.setType("vnd.android.cursor.item/event");
    intent.putExtra("beginTime", cal.getTimeInMillis());
    Intent.putExtra("allDay", false);
    intent.putExtra("rrule", "FREQ=DAILY");
    intent.putExtra("endTime", cal.getTimeInMillis()+60*60*1000);
    Intent.putExtra("title", "来自 Android 应用程序的测试事件");
    启动活动(意图);
    

    或更复杂的:

  2. 使用此方法获取对日历的引用

    强烈建议不要使用此方法,因为它可能会在较新的 Android 版本上崩溃):

    private String getCalendarUriBase(Activity act) {
    
        字符串calendarUriBase = null;
        Uri 日历 = Uri.parse("content://calendar/calendars");
        游标管理游标 = null;
        尝试 {
            ManagedCursor = act. ManagedQuery(日历, null, null, null, null);
        } catch (异常 e) {
        }
        如果(托管游标!= null){
            calendarUriBase = "内容://日历/";
        } 别的 {
            日历 = Uri.parse("content://com.android.calendar/calendars");
            尝试 {
                ManagedCursor = act. ManagedQuery(日历, null, null, null, null);
            } catch (异常 e) {
            }
            如果(托管游标!= null){
                calendarUriBase = "content://com.android.calendar/";
            }
        }
        返回日历UriBase;
    }
    

    并以这种方式添加事件和提醒

    //获取日历
    日历 cal = Calendar.getInstance();     
    Uri EVENTS_URI = Uri.parse(getCalendarUriBase(this) + "事件");
    ContentResolver cr = getContentResolver();
    
    // 事件插入
    ContentValues 值 = new ContentValues();
    value.put("calendar_id", 1);
    value.put("标题", "提醒标题");
    put("allDay", 0);
    value.put("dtstart", cal.getTimeInMillis() + 11*60*1000); // 活动从现在起 11 分钟后开始
    value.put("dtend", cal.getTimeInMillis()+60*60*1000); // 60 分钟后结束
    value.put("描述", "提醒描述");
    value.put("可见性", 0);
    value.put("hasAlarm", 1);
    Uri 事件 = cr.insert(EVENTS_URI, 值);
    
    // 提醒插入
    Uri REMINDERS_URI = Uri.parse(getCalendarUriBase(this) + "提醒");
    值=新的ContentValues();
    value.put( "event_id", Long.parseLong(event.getLastPathSegment()));
    值.put(“方法”, 1);
    value.put( "分钟", 10 );
    cr.insert( REMINDERS_URI, 值 );
    

    您还需要将这些权限添加到此方法的清单中:

    >
    >
    

更新:ICS 问题

上述示例使用未记录的日历 API,已针对 ICS 发布了新的公共日历 API ,因此出于这个原因,要针对新的 Android 版本,您应该使用 CalendarContract

有关此内容的更多信息,请访问此博文

Nope, it is more complicated than just calling a method, if you want to transparently add it into the user's calendar.

You've got a couple of choices;

  1. Calling the intent to add an event on the calendar

    This will pop up the Calendar application and let the user add the event. You can pass some parameters to prepopulate fields:

    Calendar cal = Calendar.getInstance();              
    Intent intent = new Intent(Intent.ACTION_EDIT);
    intent.setType("vnd.android.cursor.item/event");
    intent.putExtra("beginTime", cal.getTimeInMillis());
    intent.putExtra("allDay", false);
    intent.putExtra("rrule", "FREQ=DAILY");
    intent.putExtra("endTime", cal.getTimeInMillis()+60*60*1000);
    intent.putExtra("title", "A Test Event from android app");
    startActivity(intent);
    

    Or the more complicated one:

  2. Get a reference to the calendar with this method

    (It is highly recommended not to use this method, because it could break on newer Android versions):

    private String getCalendarUriBase(Activity act) {
    
        String calendarUriBase = null;
        Uri calendars = Uri.parse("content://calendar/calendars");
        Cursor managedCursor = null;
        try {
            managedCursor = act.managedQuery(calendars, null, null, null, null);
        } catch (Exception e) {
        }
        if (managedCursor != null) {
            calendarUriBase = "content://calendar/";
        } else {
            calendars = Uri.parse("content://com.android.calendar/calendars");
            try {
                managedCursor = act.managedQuery(calendars, null, null, null, null);
            } catch (Exception e) {
            }
            if (managedCursor != null) {
                calendarUriBase = "content://com.android.calendar/";
            }
        }
        return calendarUriBase;
    }
    

    and add an event and a reminder this way:

    // get calendar
    Calendar cal = Calendar.getInstance();     
    Uri EVENTS_URI = Uri.parse(getCalendarUriBase(this) + "events");
    ContentResolver cr = getContentResolver();
    
    // event insert
    ContentValues values = new ContentValues();
    values.put("calendar_id", 1);
    values.put("title", "Reminder Title");
    values.put("allDay", 0);
    values.put("dtstart", cal.getTimeInMillis() + 11*60*1000); // event starts at 11 minutes from now
    values.put("dtend", cal.getTimeInMillis()+60*60*1000); // ends 60 minutes from now
    values.put("description", "Reminder description");
    values.put("visibility", 0);
    values.put("hasAlarm", 1);
    Uri event = cr.insert(EVENTS_URI, values);
    
    // reminder insert
    Uri REMINDERS_URI = Uri.parse(getCalendarUriBase(this) + "reminders");
    values = new ContentValues();
    values.put( "event_id", Long.parseLong(event.getLastPathSegment()));
    values.put( "method", 1 );
    values.put( "minutes", 10 );
    cr.insert( REMINDERS_URI, values );
    

    You'll also need to add these permissions to your manifest for this method:

    <uses-permission android:name="android.permission.READ_CALENDAR" />
    <uses-permission android:name="android.permission.WRITE_CALENDAR" />
    

Update: ICS Issues

The above examples use the undocumented Calendar APIs, new public Calendar APIs have been released for ICS, so for this reason, to target new android versions you should use CalendarContract.

More infos about this can be found at this blog post.

卸妝后依然美 2024-11-13 12:54:01

您可以将 AlarmManager 与通知机制结合使用
像这样:

Intent intent = new Intent(ctx, ReminderBroadcastReceiver.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(ctx, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
AlarmManager am = (AlarmManager) ctx.getSystemService(Activity.ALARM_SERVICE);
// time of of next reminder. Unix time.
long timeMs =...
if (Build.VERSION.SDK_INT < 19) {
    am.set(AlarmManager.RTC_WAKEUP, timeMs, pendingIntent);
} else {
    am.setExact(AlarmManager.RTC_WAKEUP, timeMs, pendingIntent);
}

它开始报警。

public class ReminderBroadcastReceiver extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        NotificationCompat.Builder builder = new NotificationCompat.Builder(context)
                .setSmallIcon(...)
                .setContentTitle(..)
                .setContentText(..);
        Intent intentToFire = new Intent(context, Activity.class);
        PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intentToFire, PendingIntent.FLAG_UPDATE_CURRENT);
        builder.setContentIntent(pendingIntent);
        NotificationManagerCompat.from(this);.notify((int) System.currentTimeMillis(), builder.build());
    }
}

You can use AlarmManager in coop with notification mechanism
Something like this:

Intent intent = new Intent(ctx, ReminderBroadcastReceiver.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(ctx, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
AlarmManager am = (AlarmManager) ctx.getSystemService(Activity.ALARM_SERVICE);
// time of of next reminder. Unix time.
long timeMs =...
if (Build.VERSION.SDK_INT < 19) {
    am.set(AlarmManager.RTC_WAKEUP, timeMs, pendingIntent);
} else {
    am.setExact(AlarmManager.RTC_WAKEUP, timeMs, pendingIntent);
}

It starts alarm.

public class ReminderBroadcastReceiver extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        NotificationCompat.Builder builder = new NotificationCompat.Builder(context)
                .setSmallIcon(...)
                .setContentTitle(..)
                .setContentText(..);
        Intent intentToFire = new Intent(context, Activity.class);
        PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intentToFire, PendingIntent.FLAG_UPDATE_CURRENT);
        builder.setContentIntent(pendingIntent);
        NotificationManagerCompat.from(this);.notify((int) System.currentTimeMillis(), builder.build());
    }
}
故人如初 2024-11-13 12:54:01

Android 完整源代码,用于添加具有开始和结束时间格式的事件和提醒。

/** Adds Events and Reminders in Calendar. */
private void addReminderInCalendar() {
    Calendar cal = Calendar.getInstance();
    Uri EVENTS_URI = Uri.parse(getCalendarUriBase(true) + "events");
    ContentResolver cr = getContentResolver();
    TimeZone timeZone = TimeZone.getDefault();

    /** Inserting an event in calendar. */
    ContentValues values = new ContentValues();
    values.put(CalendarContract.Events.CALENDAR_ID, 1);
    values.put(CalendarContract.Events.TITLE, "Sanjeev Reminder 01");
    values.put(CalendarContract.Events.DESCRIPTION, "A test Reminder.");
    values.put(CalendarContract.Events.ALL_DAY, 0);
    // event starts at 11 minutes from now
    values.put(CalendarContract.Events.DTSTART, cal.getTimeInMillis() + 11 * 60 * 1000);
    // ends 60 minutes from now
    values.put(CalendarContract.Events.DTEND, cal.getTimeInMillis() + 60 * 60 * 1000);
    values.put(CalendarContract.Events.EVENT_TIMEZONE, timeZone.getID());
    values.put(CalendarContract.Events.HAS_ALARM, 1);
    Uri event = cr.insert(EVENTS_URI, values);

    // Display event id
    Toast.makeText(getApplicationContext(), "Event added :: ID :: " + event.getLastPathSegment(), Toast.LENGTH_SHORT).show();

    /** Adding reminder for event added. */
    Uri REMINDERS_URI = Uri.parse(getCalendarUriBase(true) + "reminders");
    values = new ContentValues();
    values.put(CalendarContract.Reminders.EVENT_ID, Long.parseLong(event.getLastPathSegment()));
    values.put(CalendarContract.Reminders.METHOD, Reminders.METHOD_ALERT);
    values.put(CalendarContract.Reminders.MINUTES, 10);
    cr.insert(REMINDERS_URI, values);
}

/** Returns Calendar Base URI, supports both new and old OS. */
private String getCalendarUriBase(boolean eventUri) {
    Uri calendarURI = null;
    try {
        if (android.os.Build.VERSION.SDK_INT <= 7) {
            calendarURI = (eventUri) ? Uri.parse("content://calendar/") : Uri.parse("content://calendar/calendars");
        } else {
            calendarURI = (eventUri) ? Uri.parse("content://com.android.calendar/") : Uri
                    .parse("content://com.android.calendar/calendars");
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
    return calendarURI.toString();
}

向您的清单文件添加权限。

<uses-permission android:name="android.permission.READ_CALENDAR" />
<uses-permission android:name="android.permission.WRITE_CALENDAR" />

Android complete source code for adding events and reminders with start and end time format.

/** Adds Events and Reminders in Calendar. */
private void addReminderInCalendar() {
    Calendar cal = Calendar.getInstance();
    Uri EVENTS_URI = Uri.parse(getCalendarUriBase(true) + "events");
    ContentResolver cr = getContentResolver();
    TimeZone timeZone = TimeZone.getDefault();

    /** Inserting an event in calendar. */
    ContentValues values = new ContentValues();
    values.put(CalendarContract.Events.CALENDAR_ID, 1);
    values.put(CalendarContract.Events.TITLE, "Sanjeev Reminder 01");
    values.put(CalendarContract.Events.DESCRIPTION, "A test Reminder.");
    values.put(CalendarContract.Events.ALL_DAY, 0);
    // event starts at 11 minutes from now
    values.put(CalendarContract.Events.DTSTART, cal.getTimeInMillis() + 11 * 60 * 1000);
    // ends 60 minutes from now
    values.put(CalendarContract.Events.DTEND, cal.getTimeInMillis() + 60 * 60 * 1000);
    values.put(CalendarContract.Events.EVENT_TIMEZONE, timeZone.getID());
    values.put(CalendarContract.Events.HAS_ALARM, 1);
    Uri event = cr.insert(EVENTS_URI, values);

    // Display event id
    Toast.makeText(getApplicationContext(), "Event added :: ID :: " + event.getLastPathSegment(), Toast.LENGTH_SHORT).show();

    /** Adding reminder for event added. */
    Uri REMINDERS_URI = Uri.parse(getCalendarUriBase(true) + "reminders");
    values = new ContentValues();
    values.put(CalendarContract.Reminders.EVENT_ID, Long.parseLong(event.getLastPathSegment()));
    values.put(CalendarContract.Reminders.METHOD, Reminders.METHOD_ALERT);
    values.put(CalendarContract.Reminders.MINUTES, 10);
    cr.insert(REMINDERS_URI, values);
}

/** Returns Calendar Base URI, supports both new and old OS. */
private String getCalendarUriBase(boolean eventUri) {
    Uri calendarURI = null;
    try {
        if (android.os.Build.VERSION.SDK_INT <= 7) {
            calendarURI = (eventUri) ? Uri.parse("content://calendar/") : Uri.parse("content://calendar/calendars");
        } else {
            calendarURI = (eventUri) ? Uri.parse("content://com.android.calendar/") : Uri
                    .parse("content://com.android.calendar/calendars");
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
    return calendarURI.toString();
}

Add permission to your Manifest file.

<uses-permission android:name="android.permission.READ_CALENDAR" />
<uses-permission android:name="android.permission.WRITE_CALENDAR" />
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