auto-update

Possible Duplicate: Is there a way to automatically update application on Android? As a property of an application(NOT USING GOOGLE PLAY), an auto-updating possible in android? I mean can a application check and download the new apk file, and install after downloading it? Check out the CWAC-Updater project: https://github.com/commonsguy/cwac-updater If you don't want to maintain you own update server, you may try this: auto-update-apk.com Android client is open-source under Apache 2.0 license , so you may see how it works and make any changes, if necessary, before incorporating into your own

For desktop based applications, what are best practices to perform auto updates? Currently, we download all files, then copy and register (if com dll) to their respective directories. I looked at Google Chrome update method. It seems that it first downloads a zipped file into a directory, and then unzips all the files. Also, they have a setup application which seems to be used to do the update. Additionally, they create a directory mapped to update version like 1.0.154.43, but they keep the old version's directory. The recent blog post from the Chromium team is a great guide: http://blog

I'm currently using the Qt Installer Framework and managed to set up an online repository. What I want to know is: Does the Framework provide some kind of "auto-update" mechanism, e.g. a plugin/service that checks for updates every time the program/system starts? Check for updates would be enough, since the installation itself can be done using the maintanance tool. All I could find about this topic was this small sentence: End users can use the maintenance tool to install additional components from the server after the initial installation, as well as to receive automatic updates to content

I have searched through google and SO for possible answers to this question, but can only find small bits of information scattered around the place, most of which appear to be personal opinion. I'm aware that this question could be considered subjective, but I'm not looking for personal opinion, rather facts with reasons (e.g. past experience) or even a single link to a blog/wiki which describes best practices for this (this is what I'd prefer to be honest). What I'm not looking for is how to make this work, I know how to create a self updating desktop application. I want to know about the

I have a table APPLEVARIETY. It has the following columns: id family color description (TEXT) description_last_update_time (TIMESTAMP) For the latter column I would like to use 'ON UPDATE CURRENT_TIMESTAMP'. However, this will cause the timestamp to be updated if at least one of the other columns are updated (id, family, color). Instead I would like to specify that the description_last_update_time will get the CURRENT_TIMESTAMP if only the description column is updated. It should ignore updates on the rest of the columns. I have looked through the MySQL manual, other questions on stackoverflow

After seeing some of the problems that Microsoft has had upgrading people from Internet Explorer 6 and also seeing how Firefox has automatic updates, it's made me consider the benefits and drawbacks of a push-style upgrade system for our web app. In your opinion, should a web app have automatic updates? Why or why not? If yes, what are some of the issues that need to be taken into consideration and what strategies would you employ to make the upgrades as seamless as possible? Are there any existing examples you could point to of web apps that have a similar system? Edit: For clarification, the

Problem is: Clock hands in Tkinter flashes because I use w.delete , but if i don't use it then clock hands duplicate.. Please help. import Tkinter as tk; import time from math import cos,sin,pi import sys root=tk.Tk(); root.title("Clock") w = tk.Canvas(root, width=320, height=320, bg="#456", relief= "sunken", border=10) w.pack() size=300 def funA(): s=time.localtime()[5] m=time.localtime()[4] h=time.localtime()[3] w.update() degrees = 6*s angle = degrees*pi*2/360 ox = 165 oy = 165 x = ox + size*sin(angle)*0.45 y = oy - size*cos(angle)*0.45 t = w.create_line(ox,oy,x,y, fill = "#ffc") degrees1 =