Bitmap .compress() returning false

Posted by Tsimmi on Stack Overflow See other posts from Stack Overflow or by Tsimmi
Published on 2010-06-14T16:31:10Z Indexed on 2010/06/14 16:42 UTC
Read the original article Hit count: 216

Filed under:

android

|

bitmap

|

compress

|

bitmapimage

|

bitmaps

Hi!

The next call to Bitmap.compress(),
has a different behavior on the Emulator and on a real device.

In the Emulator, result is true,
and in a real device the same call returns false.

FileOutputStream fos = new FileOutputStream(destinationFile, true);
boolean result = myBitmap.compress(Bitmap.CompressFormat.PNG, 100, fos);

The thing is that on the emulator
this is working great,
on a real device ( a HERO) when calling .compress(),
this returns false, witch means that it was unable to convert the image properly.

Why is this?

Thank you

© Stack Overflow or respective owner

Related posts about android

Please verify my layout: bottom button keeps coming up over keyboard

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi everyone, I have a layout which does almost what I want. There's just one bug regarding the button at the bottom. I should stay at the bottom at all times. But whenever I bring up the soft-keyboard the button will be displayed above the keyboard. This is not what I want but it should become covered… >>> More
Android programming. Application stopped unexpectedly.

as seen on Stack Overflow - Search for 'Stack Overflow'
I've just created a prototype of interface for my android app and tried to run it. Unfortunately I get an error that my app has stopped unexpectedly (my reputation doesn't allow me to post images so follow my links): screenshot of error message This is layout mode of editing. Everything looks as… >>> More
Listview Row Overlap Problem

as seen on Stack Overflow - Search for 'Stack Overflow'
I just updated my app and I am getting some odd complaints from people who update it. I am only getting complaints from people with non-stock android phones (phones that manufacturers have modified...HTC phones, cliq, pulse, etc), other phones like the Droid, Nexus work fine. My app (Photo Frame Deluxe)… >>> More
Why are some of my view not aligned correctly at the bottom of my relative layout?

as seen on Stack Overflow - Search for 'Stack Overflow'
I have problems getting some of my views aligned in a relative layout that I use inside a row of my listview. Here is a screenshot from the layout builder in Eclipse, this is what I think it should look like: The next image is from the emulator. Now the TestTestTest View is at the top and covers… >>> More
Android RatingBar weirdness: Whenever I add a RatingBar to my layout, a bunch of the generated tags,

as seen on Stack Overflow - Search for 'Stack Overflow'
Whenever I use a RatingBar view in my layout, I suddenly get all kinds of compile errors. I'm using Android 2.0, but I've also tried 2.0.1, and 2.1, without joy. I also get a message: Shader 'android.graphics.BitmapShader' is not supported in Layout Editor, and an odd warning which may or maynot be… >>> More

Related posts about bitmap

When constructing a Bitmap with Bitmap.FromHbitmap(), how soon can the original bitmap handle be del

as seen on Stack Overflow - Search for 'Stack Overflow'
From the documentation of Image.FromHbitmap() at http://msdn.microsoft.com/en-us/library/k061we7x%28VS.80%29.aspx : The FromHbitmap method makes a copy of the GDI bitmap; so you can release the incoming GDI bitmap using the GDIDeleteObject method immediately after creating the new Image. This… >>> More
Finding a Bitmap contained inside another Bitmap

as seen on Code Project - Search for 'Code Project'
A method to look for a small Bitmap that is contained inside a bigger Bitmap. >>> More
Use native HBitmap in C# while preserving alpha channel/transparency. Please check this code, it works on my computer...

as seen on Stack Overflow - Search for 'Stack Overflow'
Let's say I get a HBITMAP object/handle from a native Windows function. I can convert it to a managed bitmap using Bitmap.FromHbitmap(nativeHBitmap), but if the native image has transparency information (alpha channel), it is lost by this conversion. There are a few questions on Stack Overflow regarding… >>> More
trying to make this code less messy in android, can anyone help?

as seen on Stack Overflow - Search for 'Stack Overflow'
i know that there must be a simpler way of doing this, i just don't understand how java works well enough, and i am struggling. could someone perhaps point me in the right direction? ImageButton image = (ImageButton) findViewById(R.id.card1); ImageButton image2 = (ImageButton) findViewById(R… >>> More
Bitmap byte-size after decoding?

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi! How can I determine/calculate the byte size of a bitmap (after decoding with BitmapFactory)? I need to know how much memory space it occupies, because I'm doing memory caching/management in my app. (file size is not enough, since these are jpg/png files) Thanks for any solutions! >>> More