与广播接收器和多个接近警报问题 [英] Problems with BroadcastReceiver and multiple proximity alerts

问题描述

我意识到这个问题已经存在，但我有落实解决的麻烦。

I realize this question already exists, but I am having trouble implementing the solutions.

我用这些问题作为guidlines：

I'm using these questions as guidlines:

<一个href=\"http://stackoverflow.com/questions/5286108/multiple-proximity-alert-based-on-a-service\">multiple基于服务接近警戒

设置2接近警报与同一个广播

我在哪里注册的接收器：

Where I register the receiver:

final String NEAR_YOU_INTENT = "neighborhood.crodgers.example.activities.PROXIMITY_ALERT";
IntentFilter filter = new IntentFilter(NEAR_YOU_INTENT);
registerReceiver(new LocationReceiver(), filter);

在哪里添加接近警报（注：这是在做服务的，因此上下文抢）：

Where the proximity alerts are added (Note: This is done in a service, hence the context grab):

LocationManager manager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
final String NEAR_YOU_INTENT = "neighborhood.crodgers.example.activities.PROXIMITY_ALERT";
Context context = getApplication().getApplicationContext();

int requestCode = 12345; //Spaceballs, anyone? anyone?
for (String domain : domainNames)
{
    String[] itemNames = itemGetter();
    for (String item : itemNames)
    {
        HashMap<String, String> attributes = getAttributesForItem(domain, item);                    

        Intent intent = new Intent(NEAR_YOU_INTENT);
        intent.putExtra(ADDRESS, attributes.get(ADDRESS));
        intent.setAction(""+requestCode);
        PendingIntent proximity = PendingIntent.getBroadcast(context, requestCode, intent, PendingIntent.FLAG_CANCEL_CURRENT);
        manager.addProximityAlert(Double.parseDouble(attributes.get(LATITUDE)),
                                  Double.parseDouble(attributes.get(LONGITUDE)), 
                                  6000f, -1, proximity);

        requestCode++;
    }
}

本来，我是收到通知的第一接近警戒增加（使用接收器的通知）。添加后

Originally, I was getting notified for the first proximity alert added (using notifications from the receiver). After adding

intent.setAction(""+requestCode);

我也试过：

intent.setData(""+ requestCode)

（我看到这个建议在其他几个地方）我停下来的通知，都在一起。

(I have seen this recommended in several other places) I stopped getting notifications all together.

推荐答案

问题是，您使用的setAction

Problem

The problem is that you use setAction

Intent intent = new Intent(NEAR_YOU_INTENT);
intent.putExtra(ADDRESS, attributes.get(ADDRESS));
intent.setAction(""+requestCode); //HERE IS THE PROBLEM

你最终在最后一行做的是改变从NEAR_YOUR_INTENT到任何请求，code正好是行动。 IE浏览器，你正在做的相当于

What you end up doing in that last line is changing the action from NEAR_YOUR_INTENT to whatever request code happens to be. IE, you are doing the equivalent of

    Intent intent = new Intent();
    intent.setAction(NEAR_YOUR_INTENT);
    intent.setAction(""+requestCode); // THIS OVERWRITES OLD ACTION

附加方法

我怀疑你真正想要做的是作为一个额外的添加请求code的意图，这样就可以在你的接收器检索。尝试使用

Extra Approach

I suspect what you really want to do is add the requestCode as an extra to the intent so that you can retrieve it in your receiver. Try using

    Intent intent = new Intent(NEAR_YOU_INTENT);
    intent.putExtra(ADDRESS, attributes.get(ADDRESS));
    intent.putExtra("RequestCode", requestCode);

数据方法

另外，你可以设置数据您的要求code。 IE浏览器，你可以使用

Data Approach

Alternatively, you could set the data to be your request code. IE, you could use

    Intent intent = new Intent(NEAR_YOU_INTENT);
    intent.putExtra(ADDRESS, attributes.get(ADDRESS));
    intent.setData("code://" + requestCode);

然后，你需要改变你的接收器，然后以便它可以接受code：//
架构。要做到这一点：

Then you would need to alter your receiver then so that it can accept the "code://" schema. To do this:

final String NEAR_YOU_INTENT = "neighborhood.crodgers.example.activities.PROXIMITY_ALERT";
IntentFilter filter = new IntentFilter(NEAR_YOU_INTENT);
filter.addDataScheme("code");
registerReceiver(new LocationReceiver(), filter);

那么你很可能使用一些方法，当你得到你的意图，从数据字段解析出ID。海事组织，演员的做法是更容易。

Then you could probably use some method to parse out the id from the data field when you get your intent. IMO, the extras approach is easier.

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