Android :: Downloading Image To SD Card
Oct 7, 2010
I created a separate project and activity that downloads an image from a URL, converts it to a Bitmap, and then uses a FileOutputStream to save that file to the SD card. When in the separate project and free-standing activity, this worked fine, and I could see that the image is stored on the SD card. public class PictureDownload extends Activity {
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
downloadFromUrl("http://www.coutblog.com/prism/uploads/0030.jpg", "newpic.jpg");
displayPic("newpic.jpg");............
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Oct 17, 2010
I am going to create a gallery view where the user shall switch between different pictures of products. On some of them is going to be a label like "sale" and a short discription. On startup I want to display a loading animation at that place until the product photo is downloaded.
Use layer list or state list for one product photo?
Could you please show me, how to set that up?
How to make that spinner spin?
How to turn it on or off (how to access the layer list through code)?
By the way, is "spinner" the best word for this? It seems to stand for several things. Feel free to edit this question, if I didn't hit the right words.
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Nov 15, 2010
What I'm trying to do is this: I want my application to download an image from the Internet and save it to the phone's internal memory in a location that is private to the application. If there is no image available for the list item (i.e. it can't be found on the Internet), I want a default placeholder image to display. This is the image that I have defined in my list_item_row.xml file as the default.
In my ListActivity file, I am calling an instance of a CustomCursorAdapter class I have written. It is in CustomCursorAdapter where I am iterating through all the list items and defining what content needs to be mapped to the views, including the image file by trying to read it from internal memory.
I've seen several questions on this subject, but the examples either are specific to external phone memory (e.g. SDCard), involve saving strings instead of images, or involve using Bitmap.CompressFormat to reduce the resolution of the file (which is unnecessary in my case, as these images will be small thumbnails of already-small resolution). Trying to piece together code from each example has been difficult, hence my asking about my specific example.
At the moment, I believe I've written valid code, but no image is displaying for my list items, including the default placeholder image. I don't know if the problem is being caused by invalid download/save code, or invalid read code - it doesn't help that I don't know how to check internal memory to see if the image exists.Anyways, here's my code...
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Jan 19, 2010
Does anybody know the difference between downloading something such as a wall paper.. it asks you to download or down load to sd card.. i just downloaded to wall paper.. what would the difference be?
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Apr 23, 2010
I'm developing an Android game that has to download some assets to the SD card to keep the size of the app as small as possible. I was thinking of using an uncompressed zip file to bundle all the assets.
A requirement from the client is to protect these assets as much as possible. Being part of the apk is considered enough protection, but if I do this the apk size will be enormous. If I just put a zip bundle in the SD card, then anyone can unzip it and explore its contents.
Is there a simple way to do this without retorting to horrid DRM?
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Jul 23, 2010
How to save/download an apk. file online from my cell to my memory card, so I can use a app installer to open it.
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May 11, 2010
I used DoubleTwist to get all my music from iTunes. I was curious, how long do you think it should take to download around 900 songs from DoubleTwist to a Class 6 Micro SD card?
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Apr 10, 2010
Why is everything saving to my phone and not my sd card,bear in mind I am a newbie.Using HTC Desire.
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Jan 27, 2010
Whenever I download a pic off internet or from a background app it says it downloaded to as card but I cant find it in any of my folders. Also is there any way to access your card from the phone?
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Nov 5, 2010
I just got my Desire on Monday at US Cellular and I will admit I didn't do much research I just took the word of some friends that have been droid guys for a while. I am pretty disappointed that I have run out of internal space and I don't even have a tenth of the apps I was hoping to get. Is there a way I can download them to the SD card without rooting my phone or waiting for the froyo update?
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Sep 15, 2010
HTC Hero: Rooted with 2.1 and previously running absolutely fine but for some reason today I'm not able to save/download anything.
I tried to download a picture off the internet and it was saying there was not enough space (even though the phone memory has 122mb free thanks to Apps2SD and my SD card has over 3GB free) so I tried to email the picture from my PC, received on my phone and when I try to download the picture it says you need an SD card to do this... but the card IS being seen by the phone because my apps are running, I can access music and pictures that are on it.
I unmounted the card and then remounted it and my phone went into a loop, trying to reinitialise and couldn't do it. So I just restarted the phone and, again, all apps work but cannot save or download anything.
I'm trying to avoid wiping everything and starting from scratch but seeing as I've been meaning to move to 2.2 I think it might be an idea...
Deffo seems to just be an SD card problem, had an old MMS message, tried to save it and it wouldn't worked. Used the SaveMMS app and that brought up a long error string which basically pointed to a problem with the SD card. What confuses me though is that I can still read from it (playing music) and I just deleted a couple of pictures off it which surely constitutes editing?
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Nov 3, 2011
How do I move the music from my internal storage to my sd card?I always used to use my laptop but it's fried now.
DROID BIONIC
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Aug 2, 2010
What is the file path where you should download the ROMs/basebands too on your SD card?
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Feb 8, 2010
I am trying to download a ringtone onto my phone (which apparently gets downloaded to my sd card under download) but its saying I have no available space. Its a 2 gig mem card and i have 1.7 gigs left on it thats completely free. And my phone has 99mb of internal memory free. So a few hundred kb ringtone should not be saying this.
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Oct 29, 2009
In my application, the user selects an image from the sdcard. I launch Intent.ACTION_GET_CONTENT action for "image/*" type. This displays the com.android.camera/.ImageGallery2 activity. When the user makes a selection, I create a Bitmap Object using Media.createBitmap (..). However, when the user was trying to open an image from the SD card the app ran into strange errors............
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May 26, 2009
I made a small app which downloads an image(jpg) and saves it on the sd card. It works fine. I could pull the image down in to my computer and could see it. But i couldnt see it in the emulator. (not appearing in the gallery)........................
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Jun 23, 2010
I'm developing an image editor on android. I have a problem when I have to save the image. If I save the image with a outputstream, I can save the image but my program and android's gallery can't see the new image. If I save the image with MediaStore.Images.Media.insertImage, I can see the saved image but the problem it's that this function save a little image called thumbnails which I don't know what to do.
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Mar 18, 2009
I am using camera to capture snapshots. But i am unable to view taken pictures location. I am also unable to browse sdcard directory using DDMS in eclipse.
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Jul 13, 2010
When I started to display an image from the SDCARD in WebView, I got errors like:
" Not allowed to load local resource: file://".
I�ve found a solution for this, and you don�t even have to care about ContentProviders�
Here�s an example:
/* Using WebView to display the full-screen image */
WebView full = (WebView)findViewById(R.id.webview);
/* Set up the Zoom controls */
FrameLayout mContentView = (FrameLayout) get Window().
getDecorView().findViewById(android.R.id.content);
final View zoom = this.full.getZoomControls();
mContentView.addView(zoom, ZOOM_PARAMS);
zoom.setVisibility(View.VISIBLE);
/* Create a new Html that contains the full-screen image */
String html = new String();
html = ("<html><center><img src=""+fileName+""></html>" );
/* Finally, display the content using WebView */
full.loadDataWithBaseURL("file:///sdcard/data/data/com.youproject.example "utf-8",
""); Hope you found it useful, let me know how it works for you!
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Jul 8, 2010
How would one go about setting the homescreen wallpaper from an image on the SDcard?
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Feb 2, 2009
Is it possible to boot the phone (ADP1) from a compiled android image stored on the memory card without affecting the contents of the image flashed on the phone?
I would like to do this so I can work with development images, but I didn't want to mess with the factory image.
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Jun 17, 2010
i have to change the name of a jpg file , for that i have written the following code sdcard = Environment.get External StorageDirectory(); from = new File(sdcard,image Path. sub string ( 8). toString()); to = new File(sdcard, "/DCIM/RoseVille_"+Info.getText() +"_"+Amount.getText () +"_"+timeStampFormat.format(n ew Date())+".jpg");
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Mar 11, 2010
How can I retrieve the last image in the SDcard.
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Nov 2, 2010
My app creates a puzzle grid using table layout, tablerows and textviews. I want a user to be able to save this grid to the SD card so that it can be printed or copied or loaded onto another device.
How do you save a view so that when it's printed it will look like it does on the android screen?
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Nov 27, 2009
Am looking for a way to find images on the SD card, or at least images taken by the camera.
The ideal solution would be getting a collection of file paths or URIs for the images. I guessing you can do this through the MediaStore I just can't figure out how.
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Jun 13, 2009
Can you please tell me how can I launch the intent to pick image from SD card?
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Mar 6, 2009
When we insert images or media files to sdcard, how we can see this in emulator, means in which folder, i inserted some images and checked in "pictures", but i cant see anything there, just blank only --"No Pictures found" displaying. For media i checked in "Media scanner" under 'Dev tools", there also cant see anything.Can anybody guide me in this issue.
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Nov 15, 2010
I am using ACTION_IMAGE_CAPTURE for capturing image using intent as follwo..
Intent cameraIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
cameraIntent.putExtra(MediaStore.EXTRA_OUTPUT, (new File(Environment.getExternalStorageDirectory(),
String.valueOf(System.currentTimeMillis()) + ".jpg")));
startActivityForResult(cameraIntent, 0);
i need to store image in sdcard and retrieve path of that image in onActivityResult() method i don't know how to get image path of currently captured image.
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Apr 1, 2010
I've got an app that is heavily based on remote images. They are usually displayed alongside some data in a ListView. A lot of these images are new, and a lot of the old ones will never be seen again.
I'm currently storing all of these images on the SD card in a custom cache directory (ala evancharlton's magnatune app).
I noticed that after about 10 days, the directory totals ~30MB. This is quite a bit more than I expected, and it leads me to believe that I need to come up with a good solution for cleaning out old files... and I just can't think of a great one. Maybe you can help. These are the ideas that I've had:
Delete old files. When the app starts, start a background thread, and delete all files older than X days. This seems to pose a problem, though, in that, if the user actively uses the app, this could make the device sluggish if there are hundreds of files to delete. After creating the files on the SD card, call new
File("/path/to/file").deleteOnExit(); This will cause all files to be deleted when the VM exits (I don't even know if this method works on Android). This is acceptable, because, even though the files need to be cached for the session, they don't need to be cached for the next session. It seems like this will also slow the device down if there are a lot of files to be deleted when the VM exits. Delete old files, up to a max number of files. Same as #1, but only delete N number of files at a time. I don't really like this idea, and if the user was very active, it may never be able to catch up and keep the cache directory clean.
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Apr 23, 2010
How to store sd card image in remote server.any one please help me i posted this question many times
but i am not getting any reply .it is very urgent to me .
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