Android :: Tutorial To Make Droid Image "viewer" App?
Oct 3, 2010
I am trying to create an android app that will let me display images fullscreen with next and previous buttons on top to change between them.
Can anybody point me to some tutorials where i can find instructions on something similar?
If not, what is the best method to use to get the images into the app? I have tried several ways from creating object classes for the images and instantiating it with a drawable in each using the Bitmap Factory to return the image but that won't work.
I am a beginner to android and could really use reference material but can't find anything useful that covers this subject.
We can view an image with What if we have some images? How can we put the extras to let the viewer know we have /sdcard/a.jpg, /sdcard/b.jpg, /sdcard/c.jpg ? I hope to do this in a time because starting an activity is very expensive. Code...
Just wondering if its possible to use the built in image viewer to display an image sourced from a database. I'm hoping I can pass the byte as an extra to the ACTION_VIEW intent, but can't find any docs on it so far. Alternatively I'll have to roll my own viewer or first write the image out to a file and pass that to the intent.
I'm trying to launch an image which is written to my application directory with the builtin Android image viewer. This image has been written in a different part of the app to the app directory. When getting the following file:
How can i launch the builtin Android image viewer to view this file? Currently i'm doing:
And it keeps churning out:
Irrespective of what i change the uri schema to ( eg, content://, file://, media://, image:// ).
I do these actions on Android G1 2 times: open gallery -> view image -> Capture screen-shot -> Go back -> exist from gallery.
But captured screen-shots of 2 times are difference: the above and below background of image viewer of first time is lighter Grey, while second time is darker.
2 screen-shots: First time: http://farm5.static.flickr.com/4064/4252991345_6ee5777bf5_o.png , Second time:[url]
I repeat again many time, and the "light Grey" and "dark Grey" background are alternate occurred. Why backgrounds are not the same ? some Android optimization, cache, etc... Could you help me to find reason?
I have the url of an image. What i need to do is launch the default image viewer for images using an intent. But it doesn't work. If I do not specify the type of data, the intent launches the browser since the data is a url. It works basically (since you can see the image on the browser) but what I would like is to have the gallery display the image for me.I can also download the image into a Bitmap but I would still not know how to display the Bitmap using the gallery (if that's even possible).I tried saving the bitmap to the cache and then launch the viewer on that file but it doesn't work. Can you spot any mistakes on my code? (The Utilities class is a class i wrote.
Ok I have been trying to figure this out for a while. I have an application that needs to read images from a folder created by the application on the sdcard. I have no idea what the names of the files are because the user specifies the names of the files. I need to read the images from the folder and make something like the default image viewer, where you can share them delete them and things like that. Im thinking read them into a grid view first but 1) cant figure out how to dynamically read them from a folder 2) how would I implement the image options like the default viewer? If there was a way to open the default viewer on a certain folder that would help. Anyways any input would be amazing been working on it for a while.
I'm looking for an app that will allow me to view photos stored on my computer. I can access the computers on my home network from my Incredible using Astro or ES File Explorer "LAN" and open various file formats such as .pdf, .doc, .xls fine on my Droid; however, I am unable to open and view any type of image files (.jpg, .bmp, .gif, etc.) unless they are stored on my SD card or in the Droid memory itself.
When I try to open a image file stored outside the Droid, nothing appears on the Droid screen. I have installed several "image viewer" apps, such as Astro and 3D Gallery, none of which seem to be able to open remotely stored files. When I "click" on an image file, I see "Loading Image", but all that appears is a black screen with left and right arrow scroll buttons -- no pictures. Any advice, other than to copy and paste image files to my SD card, which then allows me to open and view them? I did get the 2.2 update.
As the title says, i've lost the default image viewer. My phone had a minor update which changed the way it receives further updates and added Backup & Restore.
But since I have lost the default image viewer. So without crappy mediascape I'm no longer able to click through my images, zoom and set as wallpaper. Has anyone else come across this? Is there a way I can download default software again? Pretty agrovate about this, x10 has been a nightmare since day 1.
I'd like to know how to make a button out of a PNG and display it on my canvas (using drawBitmap?). When I click on this button, it will take me to a new activity. All this will be in the onClickListener. So, how do I take a PNG, make a button with it, and draw it on my canvas? I looked at ImageButton, but I'm unsure how it works or how to draw it on the canvas.
As the title says I wonder how I can make my images to perspective view. Here's an image showing how they manage to do this in photo shop: http://netlumination.com/blog/creating-perspective-and-a-mirror-image-in-photoshop. Is it possible to do something like this in android?
I'm kind of new to this whole thing so I need some help. I have an application that creates an Image View On Create. I want to make this image click able and have it open a browser to a specific link. How would I do this? I'm having trouble specifically with the setOnClickListener because the parameters are not accepting an OnClickListener. I'm developing for Android 1.6
I need to display a pretty image of a map of Europe, and I want my app to, e.g. bring up a different activity, when the user clicks each country - each country on the map needs to have a different onClickListener (or equivalent). Essentially, I need to be able to call a different function when the user taps on France rather than Spain in an image such as this:http://commons.wikimedia.org/wiki/File:Blank_map_of_Europe_cropped.svg How would I best go about this on Android?
Just got around to trying the built in photo viewer in Droid accessed through gallery, Just tried free app 'picture viewer' and it's better, but still not great. Going to keep looking. What I am looking for is to flick through photos, which picture viewer does, but also being able to pan around pic if zoomed in. Also automatic search of SD card for folders with pictures.
I have a scenario at hand, for which I need a solution as soons as possible. Here is the problem statement: I need to show an image overlapped by some other image, 100%. The condition is that the picture in background should also be visible through the foreground picture but only through some part of the foreground picture. Please try to visualise how it should look like. There is a picture shown and in middle of it, there is a transparent area through which the background image is visible. I knew that I can make an image transparent and make the background image visible but here I want only some part of the foreground image to be transparent so that it looks like sort of picture frame applied to the background puicture. And for those who read the statement carefully would have understood that the ultimate thing desired is to have a picture frame applied to the picture. Can anyone please suggest a good way to do this.
I would like to place an image over a surface view. However I would like the image to be transparent so you can see the image and also the underlying surface view. Can anyone suggest how I could do this?
I placed an image in each List View Item at the right side,In the layout xml,I set its width and length as 20dip ,kind of small,and I find it is hard to click at it cause the image only occupied 20*20 dip,I hope the length of it doesn't change,while its height full filling the parent, I tried :android:layout_width="20dip" android:layout_height="fill_parent" but it doesn't work. Below is my xml: <Relative Layout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/item" android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="horizontal" android:padding="6dip" android:background="#FFFFFF"> <Image View android:id="@+id/avatar" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_margin Right="6dip" android:src="@drawable/default_happy_face"/>
I have an image of a map. I want to draw lines over that image.I have successfully displayed both the line and the image. But , the line is not transparently appearing over the image. The image is only displayed when i run the program. But,if i change the coordinates of the line so that it doesn't overlap with the image,the line is getting displayed.
Pls tell me what i should do to make the line transparent so that both the image and the line are getting displayed.
My app, among other things, downloads and displays images from the Internet. Some might be too large and trigge an OOM when ImageView.setImage() is called. Of course, this normally makes the application to crash. I've put catch (OutOfMemoryError e) around the method invocation. I know that catching errors is unusual, but in JSE applications it proved to work pretty good, especially when the problem was due to image manipulation that consumed all the memory. The Android app seemed to survive for a while, but then it blocked the computer. All buttons are irresponsive, even though the phone seems still alive (e.g. it's playing the audio notification that new email has been spotted). I tried holding the power button, it triggered the shut down menu, but touching a menu option didn't do anything. Only after a while, the phone became responsive again.
Now, it's reasonable that one can't display everything on a smartphone; I'm sure there's some inefficient memory management I'm doing (perhaps keeping too many images in memory); ok, I have to improve my code. Given that I'll do, how can I add some safety facility to avoid the most severe consequences? Making an irresponsive application it's a 100% sure way to make people to uninstall my app and give bad reviews. I'm thinking of a two-pronged safety approach: 1) whether it's possible to understand in advance whether an image is too large to be rendered by itself; 2) whether it's possible to recover from an OOM in any case.
I need to make a list view as shown in the sample pic for my android app. How to do it? Also I need to add image along it as seen in the sample pic. and link it to another view to show some more details.please check links shown below.
I'm trying to run the Android Notepadv3 app on the Motorola Droid. When I am creating a new note, if I rotate my phone so that the view should switch to horizontal, or if I open it up so the keyboard is exposed, the app freezes and crashes.
I haven't modified the program in anyway from Exercise 3 solution (http://developer.android.com/resources/tutorials/notepad/index.html). Any ideas why this is happening?