Android :: Read File Into Java Bitmap?
Nov 4, 2010I know how to read a bitmap file into a byte array. How is the byte array then converted to a Java Bitmap?
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Android :: Read A Segment Of File In Java / Droid?
Aug 27, 2010I'm sure this might be a simple question, but unfortunately this is my first time using Java and working the Android SDK.
I am uploading files on Android using the Apache HTTP libraries, in particular using the MultipartEntity.
I'm uploading to a service that allows me to send them chunks of the file, and once complete, they'll reassemble the chunks. I'd like to take advantage of this feature.
Here's the scenario.
File FOO.BAR is 20 MB. I'd split it into some arbitrary chunk size, let's say 1 MB, which means 20 chunks. Chunks #3 and #14 fail (maybe the cellular/WiFi connection was bad). I can now re-upload just these two chunks and everything will be good.
What I'd like to know is how can I read only part of a file (like the data between 3MB and 4MB)?
The file piece should be an InputStream or File object.
Android : Crop Bitmap Without Reading Entire Bitmap / Cannot Read Image Into Memory
Jul 21, 2010I have a very large image and I only want to display a section the size of the display (no scaling), and the section should just be the center of the image. Because the image is very large I cannot read the entire image into memory and then crop it. This is what I have so far but it will give OutOfMemory for large images. Also I don't think inSampleSize applies because I want to crop the image, not lower the resolution.
Uri data = getIntent().getData();
Input Stream is = getContentResolver().openInputStream(data);
Bitmap bitmap = BitmapFactory.decodeStream(is, null, null);
Any help would be great?
Android :: Draw Shape Or Bitmap Into Another Bitmap - Java - Android
Jun 22, 2010I want to draw a shape(many circles particularly) into a Specific Bitmap. I have never used canvas / 2D graphs etc. As i see it i create a Drawable put the bitmap in it then "canvas-it" to the shapes i want etc.
View 1 Replies View RelatedAndroid :: Resize Large Bitmap File To Scaled Output File
Jul 26, 2010I have a large bitmap (say 3888x2592) in a file. Now, I want to resize that bitmap to 800x533 and save it to another file.I normally would scale the bitmap by calling Bitmap.createBitmap method but it needs a source bitmap as the first argument, which I can't provide because loading the original image into a Bitmap object would of course exceed the memory (see here, for example).Is there a way to read a large image file with 10MP or more and save it to a new image file, resized to a specific new width and height, without getting an OutOfMemory exception?I also tried BitmapFactory.decodeFile(file, options) and setting the Options.outHeight and Options.outWidth values manually to 800 and 533, but it doesn't work that way.
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Oct 28, 2010If got a String and I want to convert it into a Bitmap.
View 1 Replies View RelatedAndroid : How To Scale A Bitmap Object In Java
Apr 14, 2009I have constructed a Bitmap object in Java. Can you please tell me how can I scale it (x, y with a different ratio) on android?
View 2 Replies View RelatedAndroid : How To Get Bitmap Uri In Droid Mobile Device Using Java?
Feb 18, 2010I am implemented this code image upload device only how can retrieve bitmap uri..
View 1 Replies View RelatedAndroid :: Call Java File On Click In Another Java Class?
May 19, 2010i have two files
App.java
Gallery.java
App. java contains frontend buttons and functionalities Gallery.java lists the imagesin the sd card. i want to call Gallery.java in click event in app.java
App.java
package gallery.display;
import android.app.Activity;
import android.os.Bundle;
import android.view.View.OnClickListener;
import android.view.View;...........
Android : Java.lang.Out Of MemoryError / Bitmap Size Exceeds VM Budget
Apr 26, 2009While I'm trying to resize a photo (originally on a sd card), grabbed using :
InputStream openInputStream = contentResolver.openInputStream (photoUri);
I got the following stack trace when calling : Bitmap bitmap = BitmapFactory.decodeStream(openInputStream);
04-26 14:57:57.213: ERROR/dalvikvm-heap(349): 6291456-byte external allocation too large for this process. 04-26 14:57:57.224: ERROR/(349): VM won't let us allocate 6291456 bytes 04-26 14:57:57.234: DEBUG/skia(349): xxxxxxxxxxxxxxxxxxxx allocPixelRef failed 04-26 14:58:58.005: WARN/dalvikvm(349): threadid=15: thread exiting with uncaught exception (group=0x4000fe68) 04-26 14:58:58.014: ERROR/AndroidRuntime(349): Uncaught handler: thread Thread-19 exiting due to uncaught exception 04-26 14:58:58.153: ERROR/AndroidRuntime(349): java.lang.OutOfMemoryError: bitmap size exceeds VM budget 04-26 14:58:58.153: ERROR/AndroidRuntime(349):at android.graphics.BitmapFactory.nativeDecodeStream(Native Method) 04-26 14:58:58.153: ERROR/AndroidRuntime(349):at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:304) 04-26 14:58:58.153: ERROR/AndroidRuntime(349):at android.graphics.BitmapFactory.decodeFile(BitmapFactory.java:149) 04-26 14:58:58.153: ERROR/AndroidRuntime(349):at android.graphics.BitmapFactory.decodeFile(BitmapFactory.java:174)
Do you know an alternative way to resize a picture ? without calling BitmapFactory ? and without getting such an exception ? Thanks in advance for your help Anthony
Android : Java.lang.out Of Memory Error - Bitmap Size Exceeds VM Budget
Aug 19, 2010In my application am displaying a list of names and respective pictures ? I am picking picture from gallery through Durable.getFromPath(). ? am displaying list , some i encountered with out of memory error ? please help me to sort out this error?
View 1 Replies View RelatedAndroid : ImageAdapter And ListView (java.lang.OutOfMemoryError: Bitmap Size Exceeds VM Budget)
Jun 15, 2010I'm using ListView to display images which I provide through an ImageAdapter class. it works great on my device (and on many other devices which I tested it on), but somehow when I'm using the emulator and I'm long-pressing the up/down button - I'm getting an outOfMemory error after 10-15 seconds.
I tried clearing cache, canceling cache, etc. - nothing helped.
I know this crash is pretty rare (i couldn't reproduced it on any "real" device), but I can see on DDMS that "GC freed" are getting bigger during that long press and I can't find a way to clear them.
Android :: Does The Dalvik File Format - .dx - Support More Instructions Than Java .class File
Apr 17, 2010Is there anything the Dalvik VM supports (in terms of bytecode) which is not used currently because the .class files don't have it?
As an example, if people would write their own Source-to-DX converter for their functional language XYZ, would they be able to implement e. g. full tail calls although the .class file does support tail calls only under certain circumstances?
Android :: Read Cpu Frequency On Droid Device / Java API For That?
Jun 11, 2010Is there any Java API for that? How can I read this information.
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Jan 21, 2010Might sound crazy, but it's what I need to do. I want to take a Bitmap object and use the XMLPullParser/XmlSerializer to write this to a flat file. Obviously I will need to read the XML tag back into a Bitmap object.So somehow I have to turn my Bitmap into a String and then turn that String back into a Bitmap. I will do some searches on Base64 to see if I get any good examples.
View 2 Replies View RelatedAndroid : Need To Create A New File ( To Be Sent ) From A Bitmap
Jul 30, 2010I have a bitmap "picPrev" which I got from my online server. I want to turn it into a file so I can send it. I was exploring this method. code...
View 2 Replies View RelatedAndroid :: Android / Java - Call Function In Separate *.java File?
Aug 16, 2010I do an import of the full package name / java file, and if I do a <classname>.<method>, SOMETIMES I can get it to access - other times I get a lot of can't use a static in a non static bunch of talk. I'll admit I'm new to Java, so what do I need to do? Call a class instance first, then call my methods? I'm rather confused by this, as I want to put all of my 'functions' into a FunctionsList.java file, and all of my main Activity (UI) into a MyActivity.java file.
For example:
<MyActivity.java>
import com.example.FunctionsList;
private class MyActivity extends Activity {
FunctionsList.function();
}
9/10 times I get that static/non-static error. If I put all of my functions into MyActivity.java, I have zero problems!
Android :: How To Save A Bitmap Instance To A Bmp File?
Jun 27, 2009How can i save a Bitmap instance to a *.bmp file?Anyone knows? Is it strange that we can only save a bitmap instance to a png or jpg file?
View 7 Replies View RelatedAndroid :: Access Value From Mak File To Java File?
Oct 28, 2010Is there any way to access the value (any constants) from Android.mk file to my java file.
View 3 Replies View RelatedAndroid :: Load And Draw Partially A Bitmap From File
Sep 13, 2010I have a somewhat large (i.e. not fit in most phones' memory) bitmap on disk. I want to draw only parts of it on the screen in a way that isn't scaled (i.e. inSampleSize == 1)
Is there a way to load/draw just the part I want given a Rect specifying the area without loading the entire bitmap content?
Android : Get Bitmap Infomation Before Decode An Image File?
Jun 4, 2009I 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 RelatedAndroid : Feature Request/query - Possible To Read Java Properties Format Files For I18n Strings
Sep 14, 2009I have an application which we are writing to be both a MIDP application using LWUIT as well as an Android application.
We attempt to share as much common code as possible between the two platforms.
I'd also really like to be able to share the localization strings when possible.
Reading through the docs in:
http://developer.android.com/guide/topics/resources/resources-i18n.html
It looks like Android uses an XML format to specify name-value pairs, e.g.:
{{{ <string name="go_online_message">You are currently offline. Go online? This will use the data network</string> }}}
Android :: Bitmap Image From File Does Not Scale On High Density Device / Display It?
Sep 24, 2010I have problem with displaying bitmap image on imageview on high density screen (480x800). When the bitmap image loaded from file on sdcard, the image does not scale to fit hdpi screen. On medium density screen it works normal (320x480).code...
View 1 Replies View RelatedAndroid :: Hot To Read A .pbf File On PC
Jul 13, 2010Old phone messed up trying to switch contacts to new Android phone. Old phone is unfortunately not usable. I backed up contacts on old phone and have them in a .pbf (not .pdf) stored on my PC, but I can't open the file to read it. How do I open up a .pbf file? I've searched and can't find a program to open it.
View 1 Replies View RelatedAndroid : Read Csv File From Res
Aug 8, 2009I want to read csv file from res. Can some one tell me how can i read it ?
View 3 Replies View RelatedAndroid :: How To Read Binary .AMF File?
Aug 2, 2010I am new to android and I want to read a binary file extension .AMF file.I really need your help this is really urgent.
View 1 Replies View RelatedAndroid :: Read An XML File With HTTP GET
Aug 3, 2010I need to explore for my project use of web services on Android. I know that there is no official library for XML - RPC web service.
But there is for REST XML and i need to test it.
I would like to read XML on my web page (Where i have to pass username and Password) from Android with HTTP GET. OR Suppose, i follow This link, then where do i pass username and password?
Android :: Read The File In Sdcard?
Mar 16, 2009I have the file in sdcard: sample.xml I want to read it, so I dont know some code to connect to sdcard in android.
View 6 Replies View RelatedAndroid :: Read File From Device?
Jul 2, 2010I have connected a device to PC which runs android OS. Once the device is attached I can see its direcotry F: .
How do I write a code in JAVA which can display me those files. I am using Eclipse IDE and Android plug in.
Android :: Read Text From File?
Feb 17, 2010What do I do to be able to read all lines from a file? With this code I have below I can only get the first line of the text file when I use mReadString later on. Am I doing something wrong? Or is there another way? code...
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