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我是警报功能的新手。我正在开发一个警报应用程序。我可以在其中设置警报。当闹钟响起时，自定义注释会出现在弹出窗口中。我的代码是：

主.java

import java.util.Calendar;

import android.app.Activity;
import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.Intent;
import android.os.Bundle;

public class AlarmMainActivity extends Activity {    
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        Calendar cal = Calendar.getInstance();
        cal.set(Calendar.MONTH, 0);
        cal.set(Calendar.YEAR, 2013);
        cal.set(Calendar.DAY_OF_MONTH, 31);
        cal.set(Calendar.HOUR_OF_DAY, 17);
        cal.set(Calendar.MINUTE, 40);

        //Create a new PendingIntent and add it to the AlarmManager
        Intent intent = new Intent(this, AlarmReceiverActivity.class);
        PendingIntent pendingIntent = PendingIntent.getActivity(this,12345, intent, PendingIntent.FLAG_UPDATE_CURRENT);
        AlarmManager am = (AlarmManager)getSystemService(Activity.ALARM_SERVICE);
        am.set(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(),pendingIntent);
        finish();
    }
}

AlarmRecieverActivity.java

import java.io.IOException;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.media.AudioManager;
import android.media.MediaPlayer;
import android.media.RingtoneManager;
import android.net.Uri;
import android.os.Bundle;

public class AlarmReceiverActivity extends Activity {
    private MediaPlayer mMediaPlayer; 

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

        callStop();

       playSound(this, getAlarmUri());        
    }

    private void playSound(Context context, Uri alert) {
        mMediaPlayer = new MediaPlayer();
        try {
            mMediaPlayer.setDataSource(context, alert);
            final AudioManager audioManager = (AudioManager) context
                .getSystemService(Context.AUDIO_SERVICE);
            if (audioManager.getStreamVolume(AudioManager.STREAM_ALARM) != 0) {
                mMediaPlayer.setAudioStreamType(AudioManager.STREAM_ALARM);
                mMediaPlayer.prepare();
                mMediaPlayer.start();
            }
        } catch (IOException e) {
             System.out.println("OOPS");
        }
    }

    //Get an alarm sound. Try for an alarm. If none set, try notification, 
    //Otherwise, ringtone.
    private Uri getAlarmUri() {
        Uri alert = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_ALARM);
        if (alert == null) {
            alert = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
            if (alert == null) {
            alert = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_RINGTONE);
            }
        }
        return alert;
    }

    private void callStop(){
        AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(this);
    alertDialogBuilder.setTitle("Medicine Alert");
    alertDialogBuilder.setMessage("ABC");
    alertDialogBuilder.setNeutralButton("Ok", new DialogInterface.OnClickListener() {                   
                public void onClick(DialogInterface dialog, int which) {
            mMediaPlayer.stop();
                    finish();
        } //end onClick.
    }); // end alertDialog.setButton.
    alertDialogBuilder.show();  
    }
}

要求是：现在我想设置多个警报。

随着参数传递，警报应设置为接下来的 5 到 6 天。

用户可以一次编辑警报、删除警报和删除所有警报。

我应该在代码中做哪些更改以及我应该添加更多内容。请建议。

谢谢你。

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1 回答 1

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看看AlarmManager.setRepeating。

于 2013-01-31T13:17:00.107 回答