- Where Developers Learn, Share, & Build Careers


I have an asyncTask that starts on boot (called by a service) in some cases i I would like to send a notification to get started. My problem comes when I try to make a call: 

  Notification Manager No Manager = (Notification Manager) getSystemService (ns);   
 Where Eclipse shows me an error because AsyncTask is not foundSystem System Service   
 
 
 Because the getSystemService reference class is a method. See it.  
 Before calling the function, create a reference variable in your AsyncTask. Then start it in your constructor, that is,  
  context reference; Public MyAsyncTask {context = contextin;}   
 Then use this reference variable to call your function:  
  NotificationManager notManager = (NotificationManager) reference .getSystemService (ns);   
 When you are performing asyncTask, do not forget to input your reference:  
  MyAsyncTask mytask = New MyAsyncTask (getApplicationContext ()) ; Mytask.execute ();   
 I also felt that an IntentService would be more suitable for your needs.

Comments

Post a Comment

Popular posts from this blog

java - NullPointerException for a 2d Array -

नक्शा = नया बफर्ड इमेज [चौड़ाई] [ऊंचाई]; के लिए (int i = 0; i & lt; height; i ++) {for (int j = 0; j & lt; चौड़ाई; j ++) {if (charMap [j] [i] == पर्वत। इंडेंटफार्म) {if (j + 1 & lt ; चौड़ाई और amp; amp; j-1 & gt; = 0) {if (charMap [j-1] [i]! = पर्वत। इंडेंटिफ़ायर & amp; amp; & amp; amp; charMap [j + 1] [i]! = पर्वत। इंडेंटफार्म) {नक्शा [जे] [आई] = टाइल ग्रिड [1] [10]; }} और {नक्शा [जे] [आई] = टाइल ग्रिड [8] [10]; }}} यह कोड है जिसे मैं सेल के चारों ओर प्रत्येक टाइल को चेक करके 2 डी सर की जांच करने के लिए उपयोग कर रहा हूं लेकिन मुझे लगता है कि किसी को भी सोच रहा हूँ मदद कर सकता है? मुझे संदेह है कि आपको NullPointerException को charMap [j] से प्राप्त हो रहा है [ I] == पर्वत। इंडेंटिफ़ायर लाइन। सुनिश्चित करें कि आप ज्योफ द्वारा सुझाए गए दोनों मानचित्रों के लिए आंतरिक सरणियों को प्रारंभ करते हैं।
Read more

python - Assemble mpeg file unable to play in mediaplayer -

I am currently working on a school project and I think that is to gather some problems with the MPEG file I The scope of my project is: 1) Split the MPEG file into pieces of many fixed sizes. 2) Collecting some of them and leaving some part. Problem 1: When I run the file in the media player, it will play the video until it reaches that segment which I left Give it Example: Chunk = ["yui_1", "yui_2", "yui_3", "yui_5", "yui_6"] Duration of each segment: 1 second * If you think I have left the "yui_4" section. * If I went to collect all the parts except "yui_4", then the video will play the first 2 seconds before being hanged throughout the period. Problem 2: When I gather the first part off the part, it is unable to run the full MPEG file is. Duration of each piece: 1 second Example: wheel = ["yui_2", "yui_3", "yui_4", "yui_5", "yui_6"...
Read more

c# - NameSpace Manager or XsltContent to parse aspx page -

How can I use the namespace manager or XSLT content to parse the aspx page? I am using HtmlAgilityPack I am trying to parse the aspx page to get the button and label control ID. When I try to select a node with the asp: button element, I get the following error Here is the error message: Namespace Manager or XsltContext is required This query contains a prefix, variable, or user-defined function. HtmlAgilityPack.HtmlDocument htmldoc = new HtmlAgilityPack.HtmlDocument (); String filePath = @ "C: \ webform4.aspx"; Htmldoc.load (filepath); Foreach (html.doc.DocumentNode.SelectNodes ("// div") in HtmlNode div) {Response.Write (div.Id); HtmlNode ASP ("asp: button") in foreach (div.SelectNodes) {Response.Write (asp.Id); }} My aspx page looks like: & lt;% @page language = "c #" autoevolutionwireup = "true" codebahind = "Webform 4 Aspx.cs" Inheritance = "WebApplication 1.WebForm4"%> & Lt ;...
Read more