Android - how update widget often but only when it is visible?

Posted by tomash on Stack Overflow See other posts from Stack Overflow or by tomash
Published on 2010-03-10T12:24:24Z Indexed on 2010/05/30 1:22 UTC
Read the original article Hit count: 327

Filed under:

android

|

update

|

widget

|

visible

I'm going to create widget which needs to update its content every minute (it shows time-related data).

However, there is no need to update widget if it is currently invisible, which means:

screen is turned off
another app is running
widget is placed on another (invisible) home screen tab

What is the best way to update only visible widget every minute - without waking up device nor doing unnecessary computations? After widget becomes visible, small lag before update is acceptable.

© Stack Overflow or respective owner

Related posts about android

Please verify my layout: bottom button keeps coming up over keyboard

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi everyone, I have a layout which does almost what I want. There's just one bug regarding the button at the bottom. I should stay at the bottom at all times. But whenever I bring up the soft-keyboard the button will be displayed above the keyboard. This is not what I want but it should become covered… >>> More
Android programming. Application stopped unexpectedly.

as seen on Stack Overflow - Search for 'Stack Overflow'
I've just created a prototype of interface for my android app and tried to run it. Unfortunately I get an error that my app has stopped unexpectedly (my reputation doesn't allow me to post images so follow my links): screenshot of error message This is layout mode of editing. Everything looks as… >>> More
Listview Row Overlap Problem

as seen on Stack Overflow - Search for 'Stack Overflow'
I just updated my app and I am getting some odd complaints from people who update it. I am only getting complaints from people with non-stock android phones (phones that manufacturers have modified...HTC phones, cliq, pulse, etc), other phones like the Droid, Nexus work fine. My app (Photo Frame Deluxe)… >>> More
Why are some of my view not aligned correctly at the bottom of my relative layout?

as seen on Stack Overflow - Search for 'Stack Overflow'
I have problems getting some of my views aligned in a relative layout that I use inside a row of my listview. Here is a screenshot from the layout builder in Eclipse, this is what I think it should look like: The next image is from the emulator. Now the TestTestTest View is at the top and covers… >>> More
Android RatingBar weirdness: Whenever I add a RatingBar to my layout, a bunch of the generated tags,

as seen on Stack Overflow - Search for 'Stack Overflow'
Whenever I use a RatingBar view in my layout, I suddenly get all kinds of compile errors. I'm using Android 2.0, but I've also tried 2.0.1, and 2.1, without joy. I also get a message: Shader 'android.graphics.BitmapShader' is not supported in Layout Editor, and an odd warning which may or maynot be… >>> More

Related posts about update

Windows update doesn't list update details, only the number of updates

as seen on Server Fault - Search for 'Server Fault'
Hi all, My system is Vista Business 32 bits SP2. When I click "Windows update", I can see there are 2 available optional updates. If I click the link "2 optional updates are available" to see what the updates are, I get: http://leodip.s3.amazonaws.com/windows%5Fupdate2.PNG The details about the… >>> More
update table using cursor but also update records in another table

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm updating the IDs with new IDs, but I need to retain the same ID for the master record in table A and its dependents in table B. The chunk bracketed by comments is the part I can't figure out. I need to update all the records in table B that share the same ID with the current record I'm looking… >>> More
SQLAuthority News – SQL Server 2008 R2 Update for Developers Training Kit (March 2010 Update)

as seen on SQL Authority - Search for 'SQL Authority'
SQL Server 2008 R2 offers an impressive array of capabilities for developers that build upon key innovations introduced in SQL Server 2008. The SQL Server 2008 R2 Update for Developers Training Kit is ideal for developers who want to understand how to take advantage of the key improvements introduced… >>> More
SQLAuthority News SQL Server 2008 R2 Update for Developers Training Kit (March 2010 Update)

as seen on Dot net Slackers - Search for 'Dot net Slackers'
SQL Server 2008 R2 offers an impressive array of capabilities for developers that build upon key innovations introduced in SQL Server 2008. The SQL Server 2008 R2 Update for Developers Training Kit is ideal for developers who want to understand how to take advantage of the key improvements introduced… >>> More
Why does Mac OS X Software Update not work when machine uses Active Directory?

as seen on Server Fault - Search for 'Server Fault'
My company's IT department is mostly a Windows run operation and in order to become more secure, they are altering the way that the Macintosh computers login to our internal network so that they use Active Directory like their Windows counterparts. I have been given Administrative permission on my… >>> More