contentobserver

问题 Im trying to implement a simple message observer on Mule that don't need to mutate the message. This link on the documentation says that the easiest way is to extend the AbstractMessageObserver. But as i can see on this link the class has been removed in the earlier versions of Mule. So, the best way to do this now is implementing the MessageProcessor interface and simply return the MuleEvent param in the process method? 回答1: If you need to access the whole MuleEvent , either a

问题 Im trying to implement a simple message observer on Mule that don't need to mutate the message. This link on the documentation says that the easiest way is to extend the AbstractMessageObserver. But as i can see on this link the class has been removed in the earlier versions of Mule. So, the best way to do this now is implementing the MessageProcessor interface and simply return the MuleEvent param in the process method? 回答1: If you need to access the whole MuleEvent , either a

问题 Since there is such a needed concern for an application's battery usage, ram and cpu usage, what is the expense of multiple contentobservers vs. multiple broadcastreceivers? Example 1: A service running with START_STICKY using 5 contentobservers registered/unregistered properly. Example 2: A service being fired from 5 broadcastreceivers set in the manifest. Example 3: A service running with START_STICKY using 5 registered broadcastreceivers. What is the true difference in battery usage/ram

问题 I encountered a problem when I wanted to implement volume change detection. As the change detection has to be detected in the background via Service, I can not intercept volume key presses. I've tried ContentObserver to listen for volume settings change, but it didn't worked. But I've dig a bit more, and found that my ContentObserver detects volume change when I register it like this: this.getApplicationContext().getContentResolver().registerContentObserver( android.provider.Settings.System

问题 I've noticed that my contentObservers for chrome history and bookmarks do not trigger anymore on android lolipop. The code works perfectly on older versions of android (regardless of the chrome version) but on Lollipop it is not working anymore. I've filed a bug on chromium and this is confirmed by others in the comments. https://code.google.com/p/chromium/issues/detail?q=obogzch%40gmail.com&colspec=ID%20Pri%20M%20Iteration%20ReleaseBlock%20Cr%20Status%20Owner%20Summary%20OS%20Modified&id

问题 I've noticed that my contentObservers for chrome history and bookmarks do not trigger anymore on android lolipop. The code works perfectly on older versions of android (regardless of the chrome version) but on Lollipop it is not working anymore. I've filed a bug on chromium and this is confirmed by others in the comments. https://code.google.com/p/chromium/issues/detail?q=obogzch%40gmail.com&colspec=ID%20Pri%20M%20Iteration%20ReleaseBlock%20Cr%20Status%20Owner%20Summary%20OS%20Modified&id

问题 I have following ContentObserver implementation for receiving and writing SMS, but it is called multiple times. Code: public class SMSObserverActivity extends Activity { protected MyContentObserver observer = null; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState){ super.onCreate(savedInstanceState); setContentView(R.layout.main); String url = "content://mms-sms/"; Uri uri = Uri.parse(url); observer = new MyContentObserver(new Handler(

问题 In my application, I am inserting values in database from a different class which gives me id of inserted row. I have registered an observer of it in my UI and whenever any row is inserted, my UI content observer will get called. Both the classes are entirely different so I am finding it difficult to get inserted row id. Is there any way to get this row id in my content observer so that I can update my UI accordingly? P.S. context.getContentResolver().notifyChange(uri, null); is not my

问题 I am using a content observer for content://sms . I am writing all the messages to a text file in SD card. But the onChange() method in the content observer is called multiple times and the same message is written multiple times to the text file. How to avoid this? Also I want to know if having the content observer will slow down the phone. 回答1: You need to override deliverSelfNotifications() to return true. class ObserverSms extends ContentObserver { private Context mContext; public

问题 I have defined the following service with an observer of messages sent. The problem is that when sending a message, I sense that is called 3 times onChange method of contentobserver. ¿Someone know tell me why? Thanks public class DSMSService extends Service { private static final String CONTENT_SMS = "content://sms"; private class MyContentObserver extends ContentObserver { ContentValues values = new ContentValues(); int threadId; public MyContentObserver() { super(null); } @Override public