Android : Cache Images After They Downloaded From Web?
Dec 22, 2009How to cache images after they are downloaded from web
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Android :: Cache Images For Use In Offline Mode
Jun 8, 2010In my application I use SoftReference to cache images, it is working fine with active internet connection. And now I need to cache images, so I could use it in offline mode. What is the best way to implement it? Use complex solution with SoftReference and database? or maybe SoftReference and local storage (sdcard)?
View 1 Replies View RelatedAndroid :: Store Downloaded Images Into Droid SD Card
Aug 26, 2010I am developing app which downloads the images from the web site and then i am displaying them as slide show. now i want save the downloaded images into my SD card.
My Current Trying Code is...
HTC EVO 4G :: Not Showing Icons / Images On Website Without Deleting Cache / History / Restart Phone?
Jun 30, 2010I think my evo is starting to lose itself. It's been doing some weird stuff lately. Not showing icons/images on website unless I deleted the cache/history/restart the phone. I also lost pinch to zoom until I restarted the phone. It has done the icon thing twice. A couple of minutes ago, it restarted itself. I'm concerned but so far it's not enough to justify a trip to the store. I would return it and get another one but the store would charge me $35.
View 20 Replies View RelatedJelly Bean :: Downloaded Internet Images Not Appearing In Gallery?
Jan 6, 2014I have a Galaxy 10.1 Note. how to download some images. I was then printing them via the epson print app. Some of them automatically appeared in gallery in the download folder. This however was random and in some cases they didn, t appear.
View 3 Replies View RelatedAndroid :: Android Storing Images Downloaded From Web
Jan 13, 2010I had a question related to whether or not (and how) I should store images loaded from the web. Let's say I am calling a web service from my Android app. In this web service I get a URL for an image on the web. I download and show this image on the left side of a list item in a ListView. My question is, what method should I use for possibly storing the image? Should I.Save it to the SDCard, checking if it exists when the ListView is created (on subsequent requests) and re-downloading as necessary (while updating the image occasionally, in case it changes).Store it in the cache using Context.getCacheDir(), but possibly being forced to re-download it more often since I cannot rely on the image staying in the cache.
Always download it and never store the image.
The image files themselves are fairly small, but I expect some users could have dozens of these small images downloaded/stored. Which would work best, and/or what is the preferred method? As a side question, should I load all of the images in my ListView first (and possibly lock the UI for some time) or load them asynchronously but show a placeholder graphic in the meantime (which might be a bit more "ugly")?
General :: Disable Moving Of System Dalvik Cache To /cache?
Aug 16, 2012In cm roms, dalvik cache of system apps are generated in /cache but those data/apps are generated in /data. Is there any way to disable this behaviour? Cache partition in our phones is too small. In AOSP and AOKP and stock roms, dalvik cache is always generated in /data no matter whether its a system app. any way to achieve this in cm roms?
View 1 Replies View RelatedAndroid :: Android - Image Cache Stategy And Memory Cache Size
Jun 21, 2010I'm implementing an image cache system for caching downloaded image.
My strategy is based upon two-level cache:
Memory-level and disk-level.
My class is very similar to the class used in the droidfu project
My downloaded images are put into an hashmap and the Bitmap objet is wrapped inside a SoftRererence object.
Also every image is saved permanently to the disk.
If a requested image is not found into the Hashmap<String,SoftReference<Bitmap>> it will be searched on the disk, readed, and then pushed back into the hashmap. Otherwise the image will be downloaded from the network.
Since I store the images into the phisical device momery, I have added a check for preserve the device space and stay under a 1M of occupied space:
CODE:.................
This method is called sometime afte a disk writing:
CODE:..............
What I'd like to add is the same check on the HashMap size to prevent it will grow too much. Something like this:
CODE:.....................
My question is:
What could be a right MAX_MEMORY_SIZE value? Also, Is it a good approach? A good answer also could be: "Don't do it! SoftReference is already enough"
Android :: Load Images In OpenGL Without Having Thin Outline Appear Around Images?
Nov 2, 2009I'm basically using the same method of loading bitmaps in OpenGL that the SpriteMethodTest example uses and have been unable to get rid of an annoying outline that appears around all of my images.
For example, If I were to load an image of a white circle on a white background, I would expect to see nothing. Instead, I would see my circle because its edge would be gray. In SpriteMethodTest, I replaced the background image with white and was able to see that the edges of the android images flying around also don't seem to be rendered correctly.
Does anyone know how to load images in OpenGL without having a thin outline appear around the images?
Android :: Adding Some Nine Patch Images Breaks All Of My Other Images
Apr 6, 2010I'm working to convert some background images to nine patch so they scale better on different phones.
The problem is that if I have the following resource structure: drawable-hdpi/background.png drawable-hdpi/button.png drawable-mdpi/background.png drawable-mdpi/button.png drawable-ldpi/background.png drawable-ldpi/button.png and then I drop a new drawable-hdpi/background.9.png file into the mix, it breaks button.png during the pre-compile. The error is "No resource found that matches the given name (at 'background' with value '@drawable/button').Simply removing that one nine patch file fixes the build. Should I be able to have some nine patch images and some normal ones, or to have nine patch only in hdpi but not mdpi or ldpi? This is Eclipse 3.5.1 with the latest ADT.
Motorola Droid X :: Does Google Images Let You Select Images?
Jul 18, 2010Just curious how many have this issue.If you are unsure select the link below and find out pls.
View 30 Replies View RelatedAndroid :: Tutorials On How To Create Jpeg Images Or Convert Images Into Jpeg?
Jun 23, 20101.myJpegFile = new File("images/jpegImage.jpg");
2.output = new BufferedOutputStream(new FileOutputStream(myJpegFile));
3.encoder = JPEGCodec.createJPEGEncoder(output);
4.encoder.encode(myJpegImage); Please could you give me the equivalent code for line no. 3 and 4 in Android?
Android :: Clear Browser Cache
Dec 31, 2009How do you clear the cache on the browser?
View 11 Replies View RelatedAndroid :: App Builds Up Large Cache
Aug 17, 2010When I test my app, I notice that after some use it has built up a fairly large cache of several Mb. I see this when I go to Menu-
View 9 Replies View RelatedAndroid :: Return Value Of Get Drawing Cache
Jun 17, 2009From the JavaDoc, it said it returns 'a bitmap representing this view or null if cache is disabled'. My question is what if the View is longer than the phone screen (you need to scroll vertically), what does the bitmap return? * only the visible portion of the view * everything the view has (both visible + invisible part)
View 4 Replies View RelatedAndroid :: Cache Supposed To Be Accessible?
Mar 18, 2009My app is downloading a file that does not need to be kept. So I was trying to put it in the directory returned by Environment.getDownloadCacheDirectory() (that returns "/cache").
But apparently it is not accessible, (a FileNotFoundException is thrown).
Android :: Pragma - No-cache Not Supported?
Sep 3, 2010I work on an application to display a remote page in a webview. The page contains a simple input form and an image. The image is updated automatically by server using specific header. The page is never displayed.
Searching on the web to find a way to resolve this issue.
I read this : http://remotedroid.net/blog/2009/11/13/android-browser-caching/ "Pragma: no-cache, and all the other server-side headers also have no effect as far as I can tell."
Do you have a work around ?
Android :: Cant Clear Cache On Some Apps
Apr 27, 2010I have a couple apps I have noticed when I open a file it must cache the file internally, but gives me no way to clear. For example Zumodrive and repligo reader both will show 20+mb in my settings, but clear cache is greyed out and shows 0mb. However when I delete these apps and reinstall them, I get all that internal memory back. I am running a rooted Nexus One.
View 3 Replies View RelatedAndroid :: Counting Files In A Cache
Nov 3, 2010I'm trying to manage the files that I store in a local cache. I download files, then delete them after the total file size in the cache exceeds a certain number of bytes. What I'm shooting for right now is something simple: setting the max cache size to be 1 MB, or 1*1024*1024 bytes = 1048576 bytes. I have a method that gets the cache directory, then does a listFiles() on that File to get all children of the directory. I have a flat cache structure, no subdirectories, so simply calling f.length() on every child should give me my total cache size right?
Well what I'm finding is that the amount I count is about 0.9 of size reported in Manage Applications > Application Info for my app, in the Cache section.
Am I making a bad assumption that File.length() will actually return to me the size, in bytes, of a file on disk? I also wonder also if disk space in the Cache directory is being used by Android at all for some reason I'm unaware of.
Android :: Application Cache Data?
Oct 20, 2010I'm trying to understand the way android handles my application cache data....Some times i'll go in there and the cache directory is 6-7mb. What type of data is stored there? Is there a way in the mainifest I can say don't use cache or clear cache at Xmb ?
View 5 Replies View RelatedAndroid :: XML Parsing Slow - Cache
Aug 16, 2010I have seen that xml parsing is very slow. Using sax would be better, but benchmark show that sax work only 30% faster as dom. Is right? Is faster if I construct a "DOM" using sax?
To reduce time i like to cache xml file. Caching it as xml is not a good idea because the parsing time is there again the secondo time.
Should I use sqllite? Is faster? Is an idea to use an ObjectOutputStream? Can I put in asset a file maked by ObjectOutputStream or the serialized objects can be different in different mobile hardware?
Android :: Can't Open Dex Cache Error With SDK 1.1
Mar 4, 2009Recently I switched to SDK 1.1 and it worked for a short time without any problems. Now I'm getting "Can't open dex cache '/data/dalvik- cache/system ..." error and emulator doesn't start at all. Just shows Android screen of death with blinking cursor. When I repoint Eclipse back to 1.0 r2 it works fine. I did adb shell and /data folder is empty.
View 2 Replies View RelatedAndroid :: Slacker Radio Cache?
Jan 22, 2010Coming from a Blackberry Storm, I had Slacker Radio and it was one of the first apps I downloaded on my new Eris yesterday. However, I am finding that the ability to cache radio stations to your media card is missing from the features of the Android app. The cache was extremely useful as it wouldn't force the data connection and thus helped to conserve battery life.
Is there an alternative app for radio that will cache stations or do I need to hit up the Slacker team to get an update to the Android App?
Android : Way To Control An App's Cache Size?
Aug 10, 2010My app has a WebView which displays Google maps. I'm trying to limit the cache size to a reasonable one - like 2MB. After checking with settings->applications->manage applications I found out that regular page load gets the cache to 900kb. And dispite my efforts, I can't limit the cache size or monitor when the cache limit is being reached. If I'm playing with the map on the webview, the app can even reach 10MB and no "ache max size reached" message is received.
View 2 Replies View RelatedAndroid : How To Move WebView Cache To SD?
Aug 2, 2010I've seen some apps like dolphin browser (not the HD version, the normal one) utilizing a cache-to-sd for webview but i can't seem to figure out how to do this, does anyone know how to do this or point me in the right direction?
View 1 Replies View RelatedAndroid : How To Clear Cache Without Rooting?
Aug 26, 2010is there a good app that can clear my phones cache without having to root my phone, a free app? i couldn't find one and is it bad to delete cache? dont i need it on my phone, at least some?
View 2 Replies View RelatedAndroid : Way To Clear Cache On All Apps?
Feb 14, 2010I searched and found many posts regarding clearing cache. But didn't find this answer. Is there a way to clear cache on all apps at once? I went through the settings/applications/manage apps, and checked and cleared cache on many, but this is real tedious, but seemed to give great results. Phone feels much faster. (NOT ROOTED) Psychological? Dunno, but question still stands, does anyone know an easy way to do this? Additionally, is there any risk of clearing cache from any apps?
View 10 Replies View RelatedAndroid : Clearing The Cache Of Your App On Exit
Jul 24, 2009Is it possible to force the cache of your app to clear when the user exits the app? My app piles up cache data (rightfully so) on each start, which is no longer needed once the user quits the app, so I am trying to find a way to forcibly clear it.
View 12 Replies View RelatedAndroid : How Can I Manage Cache Of MapView?
Feb 1, 2010I've made an application based on the Google Maps API. The problem is that my application is made to be used in the wild, in places where there is no network. So I would like to manage the cache in order to ensure that specific tiles are saved and available during the trip (I'd like to redirect them in database but any method may do). For now, I didn't found any other method (not tested) than try to recode the MapView class. I'm focusing on Google API in order to have satellite photography (for places where there are no roads). What could I do ?
View 2 Replies View RelatedAndroid : Cache Data In Droid?
Jan 5, 2010I have an ArrayList of custom, simple Serializable objects I would like to cache to disk and read on re-launch. My data is very small, about 25 objects and at most 5 lists so I think SQLite would be overkill. In the iPhone world I would use NSKeyedArchiver and NSKeyedUnarchiver which works great. On Android I've attempted to do this with with a FileOutputStream and ObjectOutputStream and while the result is the same, the performance is terrible. Is there a better (read faster) way to cache small objects to the file system in Android?
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