android - 带 phonegap 的 AlarmManager

Question

我正在使用 Phonegap 的 StatusBarNotification 插件 (Android) 来触发通知。现在我想在特定时间进行此操作，根据我所读的内容，我必须使用 Android 的 AlarmManager。我已经尝试了一些方法，但似乎无法让它发挥作用。

关于我如何做到这一点有什么建议吗？

编辑: 如果我将代码放在 onReceive() 到 showNotification() 中，我可以获得显示的通知。 问题似乎是接收器没有收到警报之类的东西。可能是因为我在 IntentFilter 中没有正确的操作。

这是我的代码。我从 Phonegap 的 StatusBarNotification 插件构建它，发现 here

public class StatusBarNotification extends Plugin {
//  Action to execute
public static final String ACTION="notify";

private Context context;
BroadcastReceiver receiver;

public StatusBarNotification() {
    this.receiver = null;
}

public void setContext(PhonegapActivity ctx) {
    super.setContext(ctx);
    IntentFilter intentFilter = new IntentFilter();
    intentFilter.addAction(); //Dunno what to put here
    if(receiver == null) {
        this.receiver = new BroadcastReceiver() {
            @Override
            public void onReceive(Context context, Intent intent) {
                Log.d("Notification", "inside onReceive");
                /*int icon = R.drawable.notification;
                long when = System.currentTimeMillis();
                NotificationManager manager = (NotificationManager)context.getSystemService(Context.NOTIFICATION_SERVICE);

                Intent notificationIntent = new Intent(context, context.getClass());
                PendingIntent contentIntent = PendingIntent.getActivity(context, 0, notificationIntent, 0);
                Notification noti = new Notification(icon, "NOTIFICATION", when);
                noti.setLatestEventInfo(context, "TITLE", "TEXT", contentIntent);
                manager.notify(1, noti);
                */
            }
        };
        ctx.registerReceiver(this.receiver, intentFilter);
    }
}

/**
 *  Executes the request and returns PluginResult
 *
 *  @param action       Action to execute
 *  @param data         JSONArray of arguments to the plugin
 *  @param callbackId   The callback id used when calling back into JavaScript
 *
 *  @return             A PluginRequest object with a status
 * */
@Override
public PluginResult execute(String action, JSONArray data, String callbackId) {
    String ns = Context.NOTIFICATION_SERVICE;

    context = this.ctx.getApplicationContext();

    PluginResult result = null;
    if (ACTION.equals(action)) {
        try {

            String title = data.getString(0);
            String body = data.getString(1);
            Log.d("NotificationPlugin", "Notification: " + title + ", " + body);

            showNotification(title, body);
            result = new PluginResult(Status.OK);
        } catch (JSONException jsonEx) {
            Log.d("NotificationPlugin", "Got JSON Exception "
                    + jsonEx.getMessage());
            result = new PluginResult(Status.JSON_EXCEPTION);
        }
    } else {
        result = new PluginResult(Status.INVALID_ACTION);
        Log.d("NotificationPlugin", "Invalid action : "+action+" passed");
    }
    return result;
}

/**
 *  Displays status bar notification
 *
 *  @param contentTitle Notification title
 *  @param contentText  Notification text
 * */
public void showNotification( CharSequence contentTitle, CharSequence contentText) {
    Intent intent = new Intent(ctx, ctx.getClass());
    PendingIntent pi = PendingIntent.getBroadcast(ctx, 1234, intent, PendingIntent.FLAG_CANCEL_CURRENT);
    Calendar cal = Calendar.getInstance();
    AlarmManager am = (AlarmManager) ctx.getSystemService(ctx.ALARM_SERVICE);
    am.set(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(), pi);

}

public void onDestroy() {
    if (this.receiver != null) {
        try {
            this.ctx.unregisterReceiver(this.receiver);
        } catch (Exception e) {
            Log.e("LOG TAG", "Error unregistering network receiver: " + e.getMessage(), e);
        }
    }
}

Answer 1

您应该使用 LocalNotification.js 为特定日期和时间设置警报。因为我已经使用过它并且效果很好。