发布《学习计划》android应用

本应用具有如下功能：

新增学习计划，设置计划开始时间，结束时间。一起到达计划开始时间，系统会自动提醒。

批量删除学习计划

设置提醒方式，振动或声音或闪亮等

原理：

1 .在新加计划时，设置提醒时间，到时后转到AlarmBroadReceiver类，核心代码如下：

Intent intent = new Intent(context, AlarmReceiver.class);

Bundle bundle = new Bundle();

bundle.putString("info", planEntity.getContent());

bundle.putInt("id", planEntity.getId());

intent.putExtras(bundle);

//PendingIntent这个类用于处理即将发生的事情

////通过getBroadcast第二个参数区分闹钟，将查询得到的ID值作为第二个参数。

PendingIntent pIntent = PendingIntent.getBroadcast(context, planEntity.getId(), intent, 0);

AlarmManager am = (AlarmManager) context.getSystemService(Activity.ALARM_SERVICE);

Date selectedDate = DateUtils.parseString(planEntity.getStartDate(), "yyyy-MM-dd HH:mm");

am.set(AlarmManager.RTC_WAKEUP, selectedDate.getTime(), pIntent);

2.并将计划id和提醒时间保存到数据库，为了在开机重启，重新设置提醒

BootBroadcastReceiver

public class BootBroadcastReceiver extends BroadcastReceiver {

public static final LogContext LCTX = PlanLogContext.ROOT.lctx(BootBroadcastReceiver.class);

@Override

public void onReceive(Context context, Intent intent) {

if(intent.getAction().equals(Intent.ACTION_BOOT_COMPLETED)){

IPlanDao planDao=DaoFactory.getInstance().getDaoInstance(PlanDaoImpl.class);

List<AlarmEntity> result =planDao.queryAlarmRecords();

if(CollectionUtils.isEmpty(result)){

return;

}

for(AlarmEntity alarmEntity : result){

PlanEntity planEntity=planDao.queryPlanDataById(alarmEntity.getPlanId());

//重新记录闹钟

AlarmHelper.recordAlarm(context, planEntity);

LCTX.d("rerecord alarm . id = " + alarmEntity.getPlanId() +",alarmTime = "+ new Date(alarmEntity.getAlarmTime()));

}

}

}

}

3. 到提醒时间后，弹出notifictaion 信息

AlarmReceiver

ic void onReceive(Context context, Intent intent) {

// 获取传递的信息

Bundle bundle = intent.getExtras();

String info = bundle.getString("info");

int planId = bundle.getInt("id");

NotificationManager notiManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);

// 定义Notification的各种属性

int icon = R.drawable.icon; // 通知图标

CharSequence tickerText = info; // 状态栏显示的通知文本提示

long when = System.currentTimeMillis(); // 通知产生的时间，会在通知信息里显示

// 用上面的属性初始化Nofification

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

String selectedAlarmType = PreferencesUtils.getStringPreference(context, "config", "alarmType", "");

if (selectedAlarmType.equals(context.getString(R.string.alarmTye_sound))) {

//notification.defaults |= Notification.DEFAULT_SOUND;

//notification.sound = Uri.parse("file:///sdcard/notification/ringer.mp3");

notification.sound = Uri.withAppendedPath(Audio.Media.INTERNAL_CONTENT_URI, "6");

}

else if (selectedAlarmType.equals(context.getString(R.string.alarmTye_vibrate))) {

//notification.defaults |= Notification.DEFAULT_VIBRATE;

long[] vibrate = {0,100,200,300};

notification.vibrate = vibrate;

}

else if (selectedAlarmType.equals(context.getString(R.string.alarmTye_light))) {

//notification.defaults |= Notification.DEFAULT_LIGHTS;

notification.ledARGB = 0xff00ff00;

notification.ledOnMS = 300;

notification.ledOffMS = 1000;

notification.flags |= Notification.FLAG_SHOW_LIGHTS;

}else{

notification.defaults = Notification.DEFAULT_SOUND;

}

// 设置提示框的状态

notification.flags = Notification.FLAG_AUTO_CANCEL; // //在通知栏上点击此通知后自动清除此通知

Intent intentTarget = new Intent(context, PlanMainActivity.class);

intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_NEW_TASK);

PendingIntent contentIntent = PendingIntent.getActivity(context, planId, intentTarget,

PendingIntent.FLAG_UPDATE_CURRENT);

notification.setLatestEventInfo(context, "计划开始提醒" + planId, info, contentIntent);

notiManager.notify(planId, notification);

DaoFactory.getInstance().getDaoInstance(PlanDaoImpl.class).deleteAlarmRecord(planId);

界面：









应用下载地址：http://download.csdn.net/detail/pengchua/4312844