Android :: Combining Two PNG Into One Image File
Apr 29, 2010
I have two png image files that I would like my android app to combine programmatically into one png image file and am wondering if it is possible to do so? If so, what I would like to do is just overlay them on each other to create one file. The idea behind this is that I have a handful of png files, some with a portion of the image on the left with the rest transparent and the others with an image on the right and the rest transparent. And based on user input it will combine the two to make one file to display. (And I cant just display the two images side by side, they need to be one file). Is this possible to do programmatically in android and how so?
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Oct 7, 2009
I'm trying to have an image (as the background) on a button and add dynamically, depending on what's happening during run-time, some text above/over the image. If I use ImageButton I don't even have the possibility to add text. If I use Button I can add text but only define an image with android: drawableBottom and similar XML attributes as defined here.
However these attributes only combine text & image in x- and y-dimensions, meaning I can draw an image around my text, but not below/under my text (with the z-axis defined as coming out of the display). One idea would be to either extend Button or ImageButton and override the draw()-method. But with my current level of knowledge I don't really know how to do this (2D rendering). Maybe someone with more experience knows a solution or at least some pointers to start?
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Aug 24, 2010
Is there a way to load an image file into an ImageView object, and then define a transparent color for this object?
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Apr 9, 2010
I'm wondering if it's possible to have an app that has a portion of its code implemented using Android 1.5 (API Level 3) and part using 1.6. (For example maybe implementing one of the app's activities in 1.6 while the overall app is in 1.5)?
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Feb 7, 2010
I'm working on a Java Android game. Games here generally need to use memory pools to avoid garbage collection.Making use of subclasses is a pain when using memory pools as you need to e.g. say how many Roamer and Chaser objects you want upfront and not just how many Enemy objects you might need.I would then have an update function that checked the "type" variable and updated accordingly. This is obviously a more C-like approach. It feels hacky though because e.g. a roamer enemy will have a "target" variable it never uses. I'm unlikely to have more than a 100 enemies in memory at a time though so it really isn't a big deal memory wise. I just want some compromise between nice code and speed.Does anyone have any comments on how best to structure this? Is merging classes like this going too far? Is this ever a good idea? Should I just use a regular class tree?
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Sep 9, 2010
I've got a things to do with android, so, I have 2 images,
1. image from camera
2. another image from somewhere
So what I want to achieve is how to combine those image into 1 image, but it's overlapping (just like watermarking the image). The 2nd image should be scaled first into the size of the 1st image(camera) - so they have same dimension, then if the 2nd image pixel is black, don't combine it (so the black means transparent color - on 2nd image). Do you know what is the best way achieve this, can I do this with xor or bitwise?
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Nov 24, 2009
I would like to know how I can create a chooser for the user to select from either a video or a photo. I want them to be able to capture a new video/photo or select from existing videos/photos. With the following code, I get a chooser that allows for that, but also allows audio creation/selection.
Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
intent.addCategory(Intent.CATEGORY_OPENABLE);
intent.setType("*/*");
startActivityForResult(Intent.createChooser(intent, getString (R.string.mediaChooserTitle)), REQUEST_MEDIA);
If I set the type to "image/*" I can create/get a photo, and "video/* I can get/create a video. How can I combine these types?
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Feb 1, 2010
There are some image files, and I want to get Uri of these image files. In my code, I only know path and file name of image files.
How can I get Uri from its path and file name?
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Jul 30, 2010
The quick desk and bar control apps are so far my favourite. Previously I had my switches/toggles of WiFi/3g/gps/silent/bluetooth on the desktop. Now I have these switches in quickdesk. Thats not all - using the bar control app I can have any shortcuts in my slide down bar. So I just added the quickdesk app in my bar. The benefit is that I can now access my switches/toggles from anywhere.
For example if I am using my browser and forgot to switch on WiFi, while browser is open I just slide down the bar and through quick desk switch on WiFi. This means that I do not need to navigate away from the current app that is open. Normally you would have to minimize the current app open and navigate to desktop to toggle switches, then go back to the app you were using.
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May 20, 2010
As part of the Android application I am developing in eclipse, I need to combine two packages from different projects into a single project. I tried copying the files in the package of the second project under the src folder of the first folder and copied other files required for second package into the res folder of the first project. But the auto-generated Java files i.e R.java doesn't get updated on copying. I tried right clicking on the project and clicking on Android Tools -> Fix Project Properties. But nothing changed.
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Nov 23, 2009
Anyone who uses k9 Mail or have knowledge, I have a question. Is there a way to combine your email boxes to a global type inbox? Coming from a BB it was cool to be able to check 1 box to read all my 4 email account emails. Is this a feature available and I am missing it or is there an app for this?
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Jan 15, 2010
I realise the correct way to load an image is from res/drawable but imagine that was not a possibility. If you had to load an image from an attached jar file, how would one achieve it?
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Feb 25, 2009
I need to display an image by specifying the file name instead of by using resource. E.g showImage("background.png") instead of showImage(R.drawable.background). Any one knows how?
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Sep 23, 2009
Is there a way to manage the audio levels through an app? Or is it more dependent on the phone's built in capabilities? Right now at work I listen to a skype audio call from my house (for security) at a very low volume and then at a higher level I listen to music or podcasts, both sources going at the same time. When my dog goes nuts, the door is knocked on, or (in theory) if someone busted down my door, I notice the change in volume and sound, turn off my local media, and focus on what I'm hearing until the drama passes.
I ask because I would like to continue this setup when not at work, like say while running, where I again have earphones in and am normally listening to audio content. I would like to be able to have two pieces of audio: music combined with a skype stream or normal phone call, going at the same time like at work. So is there a way to have two sources going at the same time, with the volume of each independently adjustable? Is this an app thing or a phone thing? Phone will be Sprint Hero.
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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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Aug 4, 2010
i am trying to display image from gallery now i want to put check if selected file is image then it should be displayed. using following code any one help me out how to achieve this?
User can select video file, image file etc.. anything so i want to allow only images.
CODE:......................
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May 8, 2010
I have an image that is currently stored in variable of type "File". File img; What is the easiest way to display this image onto the screen so I can verify it is working correct?
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Jul 19, 2010
In the app I am making, I would like to take a Base64 image that is received from a server, and save it to a file for displaying later. My question is where should I store this file? It needs to be dynamic, and may be empty when the program launches. I am unsure how exactly the file system on Android works, such as how file paths look.
Ideally I would like to be able to write the data to the image file using a FileOutputStream, and then display that image somehow.
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Jun 22, 2009
I want to reduce the size of my image file to transfer it over the network. Do anybody know how can I reduce the file size using andriod APIs.
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Jan 20, 2009
I want to save images from a particular URL into the sqlite db and then display it from the database..Can anyone tell me as how i could do that.
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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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Sep 14, 2010
I want to attach an image with email, that image is stored in /data/data/mypacke/file.png. How can I attach that image file programmatically? What would sample code look like?
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Oct 30, 2010
I know you can't take a screenshot without having root access, but is there a way to render an activity and all the contents to an image file?
anyone have code to do this? it would be nice to have any dialogs, menus, etc... as well, but not required.
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May 24, 2009
I want to use the ninepatch image in the file system. but seems that it can be referenced via res.
how to get the auto-scale support for the images in file system.
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Aug 10, 2010
What i want to do: delete an image file from the private internal storage in my app. I save images in internal storage so they are deleted on app uninstall.
I have successfully created and saved: code...
I have read on the android developer website that i must open private internal files using the openFileInput(...) method which returns an InputStream allowing me to read the contents, which i don't really care about - i just want to delete it.
can anyone point me in the right direction for deleting a file which is stored in internal storage?
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Jun 16, 2011
i am trying to combine two apk's in one..i write scripts using python for android.i can package those scripts in apk. however apk if installed on a phone which doesn't have python interpreter ask's user's to download interpretor.
what i want is one monolithic apk which contains python interpretor plus my script.
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Jul 31, 2010
I am currently making an app which works with images. I need to implement functionality where the user picks a file stored on the SD card. Once they pick the picture (using the Android gallery), the the file-location of the image will be sent to another Activity, where other work will be done upon it. I have seen similar posts here on SD, but none to answer my question specifically. Basically this is the code I am doing when the user clicks the "Load a Picture" button:
// Create a new Intent to open the picture selector:
Intent loadPicture = new Intent(Intent.ACTION_PICK,
android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
// To start it, run the startActivityForResult() method:
startActivityForResult(loadPicture, SELECT_IMAGE);
From that code, I then have a onActivityResult() method to listen to the call-back:
// If the user tried to select an image: if(requestCode == SELECT_IMAGE) {
// Check if the user actually selected an image: if(resultCode == Activity.RESULT_OK) {
// This gets the URI of the image the user selected: Uri selectedImage = data.getData();
// Create a new Intent to send to the next Activity:
Intent i = new Intent(currentActivty.this, nextActivity.class);
// - Problem Area -
// I would like to send the filename to the Intent object, and send it over.
// However, the selectedImage.toString() method will return a
// "content://" string instead of a file location. How do I get a file
// location from that URI object? i.putExtra("PICTURE_LOCATION", selectedImage.toString());
// Start the activity outlined with the Intent above: startActivity(i);
As the code above states, the uri.toString() will return a content:// string instead of the file location of the selected picture. How do I obtain the file location?
Another possible solution is to send over the content:// string and convert that into a Bitmap (which is what happens in the next Activity). However, I don't know how to do that.
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Nov 22, 2010
I am New To Android,My Requirement is to Attach an ImageFile and an AudioFile to an E-mail in android?
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Sep 22, 2010
I want to delete image file in SD card after sending email...anybody knows,please give sample code for me.
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Nov 4, 2010
I am using an application for obtaining the raw data from the image sensor on an Android device. The files I am getting out are in the YUV420SP format,and XnView does not supprt it. Does anyone knows which software I could use to get a proper image? (to convert it)
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