该服务负责轮询服务器以获取数据,并在满足特定条件时发送警报通知.我不希望服务在活动可见时发送这些通知.

服务是否有办法了解任何特定活动的状态？特别是一项与之相关的活动？

使用清单更新以解决权限问题：

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="com.interact.listen.android.voicemail"
      android:versionCode="1"
      android:versionName="1.0">
    <application android:icon="@drawable/icon" android:label="@string/app_name">
        <activity android:name=".MyAppName"
                  android:label="@string/app_name">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity android:name=".MyObjectDetails"/>
        <service android:enabled="true" android:name=".MyService" />
        <receiver android:name=".MyReceiver">
            <intent-filter>
                <action android:name="com.foo.bar.EVENT"/>
            </intent-filter>
        </receiver>
    </application>
    <uses-permission android:name="android.permission.INTERNET"></uses-permission>
</manifest>

我在Logcat中遇到的错误：

09-17 15:33:17.881: WARN/ActivityManager(53): Permission Denial: receiving Intent { act=com.foo.bar.myobject.EVENT (has extras) } to ProcessRecord{43928b40 223:com.foo.bar.myobject/10022} (pid=223,uid=10022) requires com.foo.bar.myobject.EVENT due to sender com.foo.bar.myobject (uid 10022)
09-17 15:33:48.901: WARN/ActivityManager(53): Permission Denial: receiving Intent { act=com.foo.bar.myobject.EVENT (has extras) } to com.foo.bar.myobject requires com.foo.bar.myobject.EVENT due to sender com.foo.bar.myobject (uid 10022)

发送广播的任务：

@Override
public void onStart(Intent intent,int startId)
{
    super.onStart(intent,startId);
    serviceHandler = new Handler();
    serviceHandler.postDelayed(myTask,100L);
    Log.d(TAG,"onStart()");
}
 
class Task implements Runnable
{
    public void run()
    {
        Log.i(TAG,"Getting myObjects...");
        getMyObjects();
        Bundle bundle = new Bundle();
        bundle.putLongArray("ids",getIdsToUpdate());
 
        Intent i = new Intent();
        i.setAction(UPDATE_ACTION_STRING);
        i.putExtras(bundle);
 
        sendOrderedBroadcast(i,UPDATE_ACTION_STRING);
 
        serviceHandler.postDelayed(this,30000L);
        }
    }
}