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?
View 1 Replies
Is there a way to load an image file into an ImageView object, and then define a transparent color for this object?
View 1 Replies View RelatedI 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?
View 4 Replies View RelatedI 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?
View 2 Replies View RelatedI 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?
View 1 Replies View RelatedI 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.
View 2 Replies View Relatedi 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:......................
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?
View 1 Replies View RelatedIn 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.
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.
View 3 Replies View RelatedI 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.
View 3 Replies View Relatedi 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");
View 3 Replies View RelatedI 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?
View 3 Replies View RelatedI 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.
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.
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?
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.
I am New To Android,My Requirement is to Attach an ImageFile and an AudioFile to an E-mail in android?
View 1 Replies View RelatedI want to delete image file in SD card after sending email...anybody knows,please give sample code for me.
View 2 Replies View RelatedI 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)
View 1 Replies View RelatedHow to fix the image size(28 x 29 png file) in the grouptIndicator of the ExpandableListview ??? I use expandableListview and android:groupIndicator in the attribute. The png image size is 28x29. But The Imgae is stretched. Does anyone Know this? Any answer is useful for me .
View 3 Replies View RelatedI want to know an image's width before decode it, so that I can set Options.inSampleSize if the image is too large. Any advice to do that?
View 3 Replies View RelatedHere is what I am trying to do:
- have a database that contains a word, and the name of an image file associated with that word.
- the words from the database will be displayed in a listview
- when the word is selected, a new activity will start displaying the word and the image in an image view.
Would it be best to store the terms in an array and have the list view populate from this array and then pull from the database onitemclick? Or can the list view be populated with the terms from the database?
Will android be able to display the image if the name of the file is stored in the db?
So after a failed attempt to upgrade from CyanogenMod 10.1.3 to 10.2, I was unable to access /data or /sdcard because both systems were encrypted. I ended up having to factory reset my phone because it refused to co-operate or let me access my files. However, before I did that, I was able to run
Code:
adb shell "dd if=/dev/block/mmcblk0p2" > data.img
and
Code:
adb shell "dd if=/dev/block/mmcblk0p3" > sdcard.img
Which appears to have copied the raw partition images from the phone (at least, they're the right sizes).
According to my reading, Android (and, I'm inferring, CyanogenMod) encrypts filesystems using dm-crypt, with a AES-CBC ESSIV:SHA256 cipher, with the key being derived from the password using PBKDF2. Knowing the precious little I do about encrypted file systems, my guess is that if I configure the image in cryptsetup to create a drive mapping, I can mount the mapped drive and recover the data from the images.
According to /fstab.herring on my ahem, fresh, install of Android, the /data partition is in ext4 format whereas the /sdcard partition is vFAT. So, once I've gotten through the encryption on the partition images, they should mount normally, right?
I know that dm-crypt accepts plain, LUKS, LoopAES and TrueCrypt device formats. I'm inferring from the PBKDF2 extension that Android goes the LUKS route for encrypting. Is this conclusion correct?
Whether it's possible to decrypt a dumped android image? I'm really hoping that the cypher information is stored on the file system and not on some key file that I nuked in the factory reset. If it can, in theory, be decrypted, am I using the right tools to approach the matter? If so, I'll continue fiddling with cryptsetup and mount, but no sense in wasting time if it's an impossible task.
First of all let me say that this questions is slightly connected to another question by me. Actually it was created because of that. I have the following code to write a bitmap downloaded from the net to a file in the sd card:
// Get image from url
URL u = new URL(url);
HttpGet httpRequest = new HttpGet(u.toURI());
HttpClient httpclient = new DefaultHttpClient();
HttpResponse response = (HttpResponse) httpclient.execute(httpRequest);
HttpEntity entity = response.getEntity();
BufferedHttpEntity bufHttpEntity = new BufferedHttpEntity(entity);
InputStream instream = bufHttpEntity.getContent();
Bitmap bmImg = BitmapFactory.decodeStream(instream);
instream.close();
// Write image to a file in sd card
File posterFile = new File(Environment.getExternalStorageDirectory().getAbsolutePath()+"/Android/data/com.myapp/files/image.jpg");
posterFile.createNewFile();
BufferedOutputStream out = new BufferedOutputStream(new FileOutputStream(posterFile));
Bitmap mutable = Bitmap.createScaledBitmap(bmImg,bmImg.getWidth(),bmImg.getHeight(),true);
mutable.compress(Bitmap.CompressFormat.JPEG, 100, out);
out.flush();
out.close();
// Launch default viewer for the file
Intent intent = new Intent();
intent.setAction(android.content.Intent.ACTION_VIEW);
intent.setDataAndType(Uri.parse(posterFile.getAbsolutePath()),"image/*");
((Activity) getContext()).startActivity(intent);
A few notes. I am creating the "mutable" bitmap after seeing someone using it and it seems to work better than without it. And I am using the parse method on the Uri class and not the fromFile because in my code I am calling these in different places and when I am creating the intent I have a string path instead of a file. Now for my problem. The file gets created. The intent launches a dialog asking me to select a viewer. I have 3 viewers installed. The Astro image viewer, the default media gallery (I have a milstone on 2.1 but on the milestone the 2.1 update did not include the 3d gallery so it's the old one) and the 3d gallery from the nexus one (I found the apk in the wild). Now when I launch the 3 viewers the following happen:
Astro image viewer: The activity launches but I see nothing but a black screen.
Media Gallery: I get an exception dialog shown "The application MediaGallery (process com.motorola.gallery) has stoppedunexpectedly. Please try again" with a force close option.
3D gallery: Everything works as it should.
When I try to simply open the file using the Astro file manager (browse to it and simply click) I get the same option dialog but this time things are different:
Astro image viewer: Everything works as it should.
Media Gallery: Everything works as it should.
3D gallery: The activity launches but I see nothing but a black screen.
As you can see everything is a complete mess. I have no idea why this happens but it happens like this every single time. It's not a random bug. Am I missing something when I am creating the intent? Or when I am creating the image file? As noted in the comment here is the part of interest in adb logcat. Also I should note that I changed the way I create the image file. Since I want to create a file that reflects an online file I simply download it instead of creating a Bitmap and then creating the file (this was done because at some point I needed the Bitmap but now I do it the other way around). The problems persist thought and are exactly the same:
I/ActivityManager(18852): Starting
activity: Intent {
act=android.intent.action.VIEW
dat=/sdcard/Android/data/com.myapp/files/image.jpg
typ=image/* flg=0x3800000
cmp=com.motorola.gallery/.ViewImage }
I/ActivityManager(18852): Start proc
com.motorola.gallery:ViewImage for
activity
com.motorola.gallery/.ViewImage:
pid=29187 uid=10017 gids={3003, 1015}
I/dalvikvm(29187): Debugger thread not
active, ignoring DDM send
(t=0x41504e4d l=38)
I/dalvikvm(29187): Debugger thread not
active, ignoring DDM send
(t=0x41504e4d l=64)
I/ActivityManager(18852): Process
com.handcent.nextsms (pid 29174) has died.
I/ViewImage(29187): In View Image
onCreate!
D/AndroidRuntime(29187): Shutting down VM
W/dalvikvm(29187): threadid=3: thread
exiting with uncaught exception
(group=0x4001b170)
E/AndroidRuntime(29187): Uncaught
handler: thread main exiting due to
uncaught exception
E/AndroidRuntime(29187):
java.lang.RuntimeException: Unable to
start activity
ComponentInfo{com.motorola.gallery/com.motorola.gallery.ViewImage}:
java.lang.NullPointerException
E/AndroidRuntime(29187): at
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2496)
E/AndroidRuntime(29187): at
android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2512)
E/AndroidRuntime(29187): at
android.app.ActivityThread.access$2200(ActivityThread.java:119)
E/AndroidRuntime(29187): at
android.app.ActivityThread$H.handleMessage(ActivityThread.java:1863)
E/AndroidRuntime(29187): at
android.os.Handler.dispatchMessage(Handler.java:99)
E/AndroidRuntime(29187): at
android.os.Looper.loop(Looper.java:123)
E/AndroidRuntime(29187): at
android.app.ActivityThread.main(ActivityThread.java:4363)
E/AndroidRuntime(29187): at
java.lang.reflect.Method.invokeNative(Native
Method)
E/AndroidRuntime(29187): at
java.lang.reflect.Method.invoke(Method.java:521)
E/AndroidRuntime(29187): at
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860)
E/AndroidRuntime(29187): at
com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
E/AndroidRuntime(29187): at
dalvik.system.NativeStart.main(Native Method)
E/AndroidRuntime(29187): Caused by:
java.lang.NullPointerException
E/AndroidRuntime(29187): at
com.motorola.gallery.ImageManager.allImages(ImageManager.java:5621)
E/AndroidRuntime(29187): at
com.motorola.gallery.ImageManager.getSingleImageListByUri(ImageManager.java:5515)
E/AndroidRuntime(29187): at
com.motorola.gallery.ViewImage.onCreate(ViewImage.java:1801)
E/AndroidRuntime(29187): at
android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
E/AndroidRuntime(29187): at
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2459)
E/AndroidRuntime(29187): ... 11 more
Hi,
Is there any api on android which generates a Thumbnail image from an inputstream which is a video file?
Thank you.
File is present in sdcard/image.jpg I would like to create my own application (activity). On a button press, the image stored in the sdcard needs to be displayed using the built-in image viewer. On pressing the back button from the Image viewer, it should go back to my running application.
View 2 Replies View RelatedWe understand aapt has support only for small and numbers. Any reason for not supporting capital letters.. in future could we expect support for the same.
View 4 Replies View RelatedHow to store image and audio files in android internal storage and how to retrieve back to display image imageview.
View 2 Replies View RelatedIn my android application I an storing an image file in internal memory using below code-
FileOutputStream fos = con.openFileOutput(fileName, con.MODE_PRIVATE);
fos.write(baf.toByteArray()); // baf - ByteArrayBuffer
fos.close();
Can anyone please help me to read this image file from internal display it in an activity?