Question

我正在尝试构建一个可在DeskClock应用中设置闹钟的个人应用。我可以让它在当天的任何时间设置闹钟，但是我如何设置第二天或本周晚些时候的闹钟。通过android中的AlarmClock api查看我没有看到正常的方法来做到这一点。这甚至可能吗？

顺便说一下，这是我设置警报的代码，它可能不太漂亮，但我正在学习。

 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);
    }
}

Answer 1

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

        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>

的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>

Answer 2

就像一个真正的闹钟，我没有看到为未来日期设置闹钟的方法。我认为这需要两种选择之一：

AlarmManager的组合（用于在所需的未来日期触发应用服务以在AlarmClock中创建警报），然后是AlarmClock（用于实际处理警报）。不要忘记监听BOOT_COMPLETED广播以重置AlarmManager警报，因为它们在重启后不会持续存在。
使用AlarmManager触发模拟警报的应用服务和UI。这将要求您考虑使用AlarmClock时无需担心的电话状态和其他事项。

我认为您可以让您的应用程序调出AlarmClock对话框，该对话框允许用户设置定期警报以及您无法通过意图执行的其他选项。

Answer 3

如何尝试待处理的意图？

只需提前几天将日历值更改为

AlarmManager am = (AlarmManager)getSystemService(alarm);

Intent i= new Intent("MY_INTENT");
PendingIntent pi = PendingIntent.getBroadcast(this, 0, i, 0);

Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
calendar.add(Calendar.MINUTE, 2);
am.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), pi);

以编程方式设置android闹钟

3 个答案: