blocks|key|3235761|text|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3235762|如果服务类和活动类在同一个包中，我相信它们应该能够访问相同的私有存储空间。|ordered-list-item|3235763|我会将它们放在同一个包中，因为它们是同一整体应用程序的一部分，将数据放入意图的额外键值对中并启动活动。|3235764|3235765|3235766|Intent+intent+=+new+Intent(this,+SecondActivity.class);
Bundle+b+=+new+Bundle();

//+see+Bundle.putInt,+etc.
//+Bundle.putSerializable+for+full+Objects+(careful+there)
b.putXXXXX("key",+ITEM);++
intent.putExtras(b);
startActivity(intent);

//+--+later,+in+Activity
Bundle+b+=+this.getIntent().getExtras();
int+i+=+b.getInt("key");|code-block|syntax|javascript|3235767|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|-4|4|5|6|O|7|@]|8|@]|9|$]]|$1|A|3|B|4|C|6|P|7|@]|8|@]|9|$]]|$1|D|3|E|4|C|6|Q|7|@]|8|@]|9|$]]|$1|F|3|-4|4|5|6|R|7|@]|8|@]|9|$]]|$1|G|3|-4|4|5|6|S|7|@]|8|@]|9|$]]|$1|H|3|I|4|J|6|T|7|@]|8|@]|9|$K|L]]|$1|M|3|-4|4|5|6|U|7|@]|8|@]|9|$]]]|N|$]]

<ol>
<li>If the Service and Activity classes are in the same package, I believe they should be able to access the same private storage space.</li>
<li>I would put them in the same package since they are part of the same overall application structure.</li>
<li>Bundle the data into an Intent's extras as Key-value pairs and start the activity.</li>
</ol>

<hr>

<pre><code>Intent intent = new Intent(this, SecondActivity.class);
Bundle b = new Bundle();

// see Bundle.putInt, etc.
// Bundle.putSerializable for full Objects (careful there)
b.putXXXXX("key", ITEM); 
intent.putExtras(b);
startActivity(intent);

// -- later, in Activity
Bundle b = this.getIntent().getExtras();
int i = b.getInt("key");
</code></pre>

blocks|key|3235779|text|在同一应用程序中，服务和活动可以访问相同的Sqlite数据库。我建议使用sqlite+db。为简单起见，将您的服务连接设置为本地连接，这样就不需要AIDL接口和进程间通信之类的东西。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3235780|在服务中，要通知用户，请使用NotificationManager。您可以将可序列化对象从服务传递到意图，然后传递到启动的活动，但我建议改为传递db+ID。|3235781|我们已经构建了一个新的Android+ORM工具，您可以使用它来完成此任务。它包括可用于构建应用程序的原型、活动和服务类。我还没有一个使用该服务的示例应用程序，但我将在下一步对其进行编码，并尽快将其上线。|3235782|你看..。|3235783|3235784|+http://ormlite.com/|blockquote|offset|length|3235785|3235786|3235787|我的博客..。|3235788|3235789|+http://touchlabblog.tumblr.com/|3235790|3235791|3235792|我目前在我正在开发的应用程序中做了一些相当繁重的db工作。服务检查服务器是否有更新，实际上是做你想做的事情。这都是非常简单的事情。|3235793|entityMap|0|LINK|mutability|MUTABLE|url|http://ormlite.com/|1|http://touchlabblog.tumblr.com/^0|0|0|0|0|0|1|J|0|0|0|0|0|0|1|V|1|0|0|0|0^^$0|@$1|2|3|4|5|6|7|18|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|19|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|1A|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|1B|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|1C|8|@]|9|@]|A|$]]|$1|I|3|J|5|K|7|1D|8|@]|9|@$L|1E|M|1F|1|1G]]|A|$]]|$1|N|3|-4|5|6|7|1H|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|1I|8|@]|9|@]|A|$]]|$1|P|3|Q|5|6|7|1J|8|@]|9|@]|A|$]]|$1|R|3|-4|5|6|7|1K|8|@]|9|@]|A|$]]|$1|S|3|T|5|K|7|1L|8|@]|9|@$L|1M|M|1N|1|1O]]|A|$]]|$1|U|3|-4|5|6|7|1P|8|@]|9|@]|A|$]]|$1|V|3|-4|5|6|7|1Q|8|@]|9|@]|A|$]]|$1|W|3|X|5|6|7|1R|8|@]|9|@]|A|$]]|$1|Y|3|-4|5|6|7|1S|8|@]|9|@]|A|$]]]|Z|$10|$5|11|12|13|A|$14|15]]|16|$5|11|12|13|A|$14|17]]]]

In the same application, services and activities can access the same Sqlite database. I'd suggest using a sqlite db. For simplicity, set up your service connection as a local, so you don't need the AIDL interfaces and inter-process communication stuff.

From a service, to notify the user, use the NotificationManager. You can pass a serializable object from your service to an intent, then to the activity that gets started, but I'd suggest passing a db ID instead.

We have built a new Android ORM tool that you can use for this. It includes prototype Activity and Service classes that you can use to build your app. I don't have an example app yet that uses the service, but I'll code that one next and get it up ASAP.

See...

<blockquote>
 <a href="http://ormlite.com/" rel="nofollow noreferrer">http://ormlite.com/</a>
</blockquote>

And my blog...

<blockquote>
 <a href="http://touchlabblog.tumblr.com/" rel="nofollow noreferrer">http://touchlabblog.tumblr.com/</a>
</blockquote>

I currently do some pretty heavy db stuff in the app I'm working on. A service checks with a server for updates, and essentially does what you're looking to do. Its all pretty simple stuff.

So I'm getting really confused on how to do this whole thing and I was hoping someone could break it down for me a little bit. 

I have a service that should always be running, and at certain times it needs to alert the user that a task is to be completed(probably through a notification bar icon). When the user accepts the task, the service needs to look into the local database, construct some non primitive objects, and give them to the activity that it just started. 

I have looked all over and gotten very confused as to a proper approach so I have a few questions to help me wrap my head around it.

<ol>
<li>If an activity creates a local SQLite database can the service and activities of that application access that same database later?</li>
<li>Does the service and activity need to be in the same or separate packages? I would think no but for some reason I remember seeing something about this elsewhere.</li>
<li>How would I do the data transmission from the service to the activity? I was thinking a content provider but it seems like there should be an easier way for the service to just hand off the data. Similar to an Intent but for non primitives.</li>
</ol>

Thanks in advance.

Android: Passing data between service and activity

数据库

服务器

Android

SQLite

所以我真的对如何做这整个事情感到困惑，我希望有人能为我分析一下。我有一个应该始终运行的服务，在某些时候，它需要提醒用户某个任务即将完成(可能是通过一个通知栏图标)。当用户接受任务时，服务需要查看本地数据库，构造一些非原语对象，并将它们提供给刚刚启动的活动。我已经看了一遍，对于正确的方法感到非常困惑，所以我有几个问题来帮...

问Android:在服务和活动之间传递数据
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