, 4:13 am, DanH danhi...@ieee.org wrote:
That's odd, because Qt can do almost exactly the same stuff, without
weak references or implicit garbage collection, using reference chains
that the average user never has to think about.
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There are thousands of people out there who will provide you with web
server services, in some cases quite inexpensive. The hard part would
be picking between the choices.
On Jul 26, 9:27 am, Doug Gordon gordo...@gmail.com wrote:
Mark Murphy wrote:
Another thought I've had is some way to
to be
interpreted as a number.
Thanks again, Federico
On Jul 25, 12:50 am, DanH danhi...@ieee.org wrote:
Did you put quotes around the string? If SQLite sees an un-quoted
string it's going to interpret it as numeric if possible. SQLite
ignores the data type of columns.
On Jul 24
fedep...@gmail.com wrote:
Thanks a lot. You saved me from doing an ugly filth :-) .
I didn't expect that the number with a + was suitable to be
interpreted as a number.
Thanks again, Federico
On Jul 25, 12:50 am, DanH danhi...@ieee.org wrote:
Did you put quotes around the string
, Agus agus.sant...@gmail.com wrote:
Is it possible to scale the outputted bitmap while decoding the stream
in one step?
I don't go with a two-step process.
On Sat, Jul 24, 2010 at 8:02 PM, DanH danhi...@ieee.org wrote:
inJustDecodeBounds in BitmapFactory.Options.
On Jul 24, 9:37 pm
a lot. You saved me from doing an ugly filth :-) .
I didn't expect that the number with a + was suitable to be
interpreted as a number.
Thanks again, Federico
On Jul 25, 12:50 am, DanH danhi...@ieee.org wrote:
Did you put quotes around the string? If SQLite sees an un-quoted
string it's
Read the documentation carefully:
In SQLite, the datatype of a value is associated with the value
itself, not with its container.
Any column in an SQLite version 3 database, except an INTEGER PRIMARY
KEY column, may be used to store a value of any storage class.
There is what they call
it in the jar for runtime (in the manifest).
On Jul 23, 6:07 pm, DanH danhi...@ieee.org wrote:
What you're really asking is whether it's possible to override the
system classpath. I don't know the answer, but that's the question.
On Jul 23, 2:08 pm, Toby tob...@gmail.com wrote:
I'm working
found did this for you? What
package did you find it it?
On Jul 23, 5:21 am, DanH danhi...@ieee.org wrote:
Yes, you must guard any use of the WeakReference by taking the ref()
of it, testing that for null, and then proceeding to use the result of
the ref() if not null. The size
on a really nasty transient
bug.
Or perhaps the version of 'ref()' you found did this for you? What
package did you find it it?
On Jul 23, 5:21 am, DanH danhi...@ieee.org wrote:
Yes, you must guard any use of the WeakReference by taking the ref()
of it, testing that for null, and then proceeding
The SQLite files will be larger than the XML and probably slower to
access, on a one-off basis. If you insist on the 50 downloaded files,
I'd place the data in a flat file of some sort, with a dope vector at
the top to speed access. Compact and fast to access.
On Jul 24, 7:03 am, Capt Spaghetti
Or at the very least you could use JSON vs XML. Maybe half the space
overhead, and much faster to parse.
On Jul 24, 7:03 am, Capt Spaghetti gene_august...@msn.com wrote:
Mark,
It just occurred to me that your second option have your smarter
server generate a SQLite database that you
You could always encrypt the pictures. You'd have to use a security
by obscurity key scheme, of course, but that's usually good for all
but dedicated hackers.
On Jul 22, 12:02 am, ejo ejo...@gmail.com wrote:
I'll use some pictures in my application.Is there any way to avoid
others getting my
to
get the free memory?. Should I use another function?
Thank you very much in advance.
On 23 jul, 20:40, DanH danhi...@ieee.org wrote:
Close as I can tell, you use a BitmapFactory.Options and put a
BitmapConfig constant in that that specifies the type of internal
representation you want
I think, given two or three target platforms, it would be possible to
design a metalanguage/metamachine that could be retargeted to all of
them. More difficult to retarget code for one physical platform to
another.
On Jul 24, 4:07 pm, AlanLawrence alan.unicycl...@googlemail.com
wrote:
I wonder
.
On 23 jul, 20:40, DanH danhi...@ieee.org wrote:
Close as I can tell, you use a BitmapFactory.Options and put a
BitmapConfig constant in that that specifies the type of internal
representation you want. If you use ARGB_ then each pixel will be
64 bits. ARGB_ -- 32 bits
function to
get the free memory?. Should I use another function?
Thank you very much in advance.
On 23 jul, 20:40, DanH danhi...@ieee.org wrote:
Close as I can tell, you use a BitmapFactory.Options and put a
BitmapConfig constant in that that specifies the type of internal
representation
Did you put quotes around the string? If SQLite sees an un-quoted
string it's going to interpret it as numeric if possible. SQLite
ignores the data type of columns.
On Jul 24, 5:12 pm, Federico Paolinelli fedep...@gmail.com wrote:
I spent a lot of time on this.
I was trying to store an
Yeah, a weak reference is fair game as soon as there are no strong
references to the object. A soft reference is kept until it's aged
a little. Different platforms have different algorithms for aging
out soft references, but the idea is to let them persist for a few GC
cycles at least.
On Jul
the original image which causes OutOfMemory error frequently.
On Sat, Jul 24, 2010 at 3:47 PM, DanH danhi...@ieee.org wrote:
Yeah, I was assuming that the space for the bitmap is allocated in
Java heap, without thinking that many phones allocate graphics
separately. Obviously, if the bitmap
Most likely would be a mismatch between the jars used in the compile
and those on the system that's loading the application. Very common
with XML classes, among others.
Another vague possibility is that the compiler being used is producing
bytecodes that Android doesn't implement. This might
Yes, you must guard any use of the WeakReference by taking the ref()
of it, testing that for null, and then proceeding to use the result of
the ref() if not null. The size of the guarded sections is up to
the programmer -- if too large then the object will never get deleted,
if too small then the
The main Activity already has a strong reference to the
objects. The secondary thread does not need to create a strong
reference; in fact, that would make the weak reference useless.
It should be noted, though, that one shouldn't use weak references (or
soft ones) willy-nilly. A weak/soft
The size of an image file depends greatly on the compression
techniques used to create it. Virtually all image formats involve
some sort of compression such that the total number of bits in the
file is considerably less than the (width * height * depth) number
that represents the raw image.
On
://developer.android.com/intl/de/reference/android/graphics/Bitma...
Nathan
On Jul 23, 9:30 am, ReyLith jesus...@gmail.com wrote:
So, how can I obtain the depth for know if I can work with the image?
On 23 jul, 18:18, DanH danhi...@ieee.org wrote:
The size of an image file depends greatly
You might want to look into XML pull parsing:
http://www.xmlpull.org/v1/download/unpacked/doc/quick_intro.html
There is support for it on the phone.
On Jul 23, 2:05 pm, Capt Spaghetti gene_august...@msn.com wrote:
I have 50 XML files located on a remote server, one formatted for
each state.
What you're really asking is whether it's possible to override the
system classpath. I don't know the answer, but that's the question.
On Jul 23, 2:08 pm, Toby tob...@gmail.com wrote:
I'm working on a SMIME application to decode .p7m signed and encrypted
messages. I've got a small Java app
I doubt that it's possible, but maybe someone else has a different
opinion.
On Jul 22, 6:30 pm, eukreign eukre...@gmail.com wrote:
How does one go about adding a custom SQLite function from within the
Android sqlite API?
I have a function (written in C) that I'm able to add using the C API
Try volatile int n= What's happening is that the compiler
figures out that the result of getColumn... is only used in the
following line, so it doesn't bother creating the variable n.
There may also be (likely is) a compiler option that will force it to
generate the (to it) useless
First off, are you sure that your UncaughtExceptionHandler is not
throwing an exception?
On Jul 21, 1:32 am, codefish 92soc...@gmail.com wrote:
i want to handle exceptions in Service.
my exception handler sends error report email.
so i add FLAG_ACTIVITY_NEW_TASK flag and it works fine in
Could be a compiler bug, but seems unlikely -- the code is not
particularly strange or complex from compiler standards. More likely
you're seeing some sort of debug artifact (not unusual for single-
stepping to give some bogus line numbers at times), or you're simply
misinterpreting what you see.
One thing I had to do on my laptop is turn the sensitivity of the
touch pad way down, since my hands waving over it (not touching) while
typing would be interpreted as mouse presses, highlight whole sections
of code, and delete them on the next keystroke. Didn't have the
problem with any other
The real Java doc is a bit better:
http://download.oracle.com/docs/cd/E17409_01/javase/6/docs/api/java/lang/ref/WeakReference.html
A WeakReference is an object that contains within it a reference to
another object. The reference is treated specially by the garbage
collector in that its existence
WeakReferences this would lead to a storage leak, since objects the
manager thought were deleted were still referenced by you and were not
getting cleaned up. And you'd not know when an object was considered
deleted by the structure's manager.)
On Jul 22, 1:21 pm, DanH danhi...@ieee.org wrote
So you'd only want to use WeakReference when you think your activity
might run out of memory?
Not exactly. If you use poor programming techniques just about any
long-running operation can run out of memory. WeakReference is an aid
to keep you from having to use much more complex techniques
It's very likely that the garbage collector has gone through several
turns of the crank trying to get these correct. The weak reference
stuff is very hard to get right the first time, from a GC perspective.
On Jul 22, 6:25 pm, fadden fad...@android.com wrote:
On Jul 22, 12:57 pm, Kostya
Best book I've found to date is Pro Android 2 by Sayed Hashimi,
Satya Komatineni, and Dave MacLean. Just through the first couple of
chapters, but it gives much more in-depth background on the platform
than other books and references I've checked.
Of course, you need to know Java pretty well,
Never played with it before, but from the docs it looks to me like you
can have only one (global) instance. In order to use it the way you
want you'd probably have to add a lot of extra code to your methods
(enough to throw off the counts).
Documentation is definitely a bit sparse.
On Jul 22,
Stupid question: Are you sure you're just updating the widget and not
stacking one widget on another on another...?
On Jul 21, 4:32 am, NightGospel wutie...@gmail.com wrote:
Hi all,
I wrote one widget that updates per 5-seconds and I found that if it's
run for a period of time,
It requires that you do a little song and dance to get the foreign
JAR file packaged into the build for the phone. I've never done it so
I can't tell you how, but there have been several discussions of this.
On Jul 21, 2:15 am, chetan chetanchauha...@gmail.com wrote:
Hi,
I have
What do you know about Java?
The R class is built automatically by the Android build process.
(R.java is in your project's gen directory.) It's mainly a container
for a bunch of inner classes (the R.whatever classes) which in turn
contain numeric constants used by the UI stuff.
All sorts of
Many of the classes provided in this package are provider-based. The
class itself defines a programming interface to which applications may
write. The implementations themselves may then be written by
independent third-party vendors and plugged in seamlessly as needed.
Therefore application
it. :)
NightGospel
On Jul 21, 11:50 pm, DanH danhi...@ieee.org wrote:
Stupid question: Are you sure you're just updating the widget and not
stacking one widget on another on another...?
On Jul 21, 4:32 am, NightGospel wutie...@gmail.com wrote:
Hi all,
I wrote one widget that updates per 5
Sad to say, what you have is state of the art. Eclipse is used for
many development environments (especially the free ones). The only
other free development workbench I know of offhand is Qt Creator. And
the emulator is better than a couple of others I've seen.
Could they be better? Of
BTW, I'm a charter member of the I hate Eclipse club -- joined it
about ten years ago.
On Jul 21, 1:24 pm, billconan billco...@gmail.com wrote:
hello guys,
i really like android and hope that it can surpass iphone in the near
future. I like it, because it's open.
But i really don't like the
Well, I can tell you it's looking for the file /sdcard/Video0006.mp4
and not finding it.
On Jul 20, 4:34 am, kivy victoriasarabu...@gmail.com wrote:
Hi everyone,
when I try to attach a file to an email, I get a
java.io.FileNotFoundException: No content provider logcat output. If
anyone could
change String vuri =
Uri.parse(videocursor.getString(0)); into an uri because of a type mismatch,
when I do that eclipse says I should change it back into a String...
On Tue, Jul 20, 2010 at 1:21 PM, DanH danhi...@ieee.org wrote:
Well, I can tell you it's looking for the file /sdcard
I think PETA would object.
On Jul 20, 7:56 pm, Eric Murtaugh fad...@gmail.com wrote:
or even a tutorial would be nice
On Jul 16, 1:32 pm, Eric Murtaugh fad...@gmail.com wrote:
Ok so i have my own home screen launcher and currently i use an
imageview with wallpaper manager to ft the system
Maybe it's because there's nothing special you need to do.
On Jul 19, 6:10 am, sblantipodi perini.dav...@dpsoftware.org wrote:
it's quite incredible, no article on internet talks about cypher with
android and php or servlet...
On Jul 18, 8:46 pm, sblantipodi perini.dav...@dpsoftware.org
Why don't you want to use extern C? You only need to use it for the
glue methods between your C++ code and the JVM.
On Jul 16, 7:22 pm, ferar ferarach...@gmail.com wrote:
android-ndk-r4/samples/hello-jni as is works fine. However, if I
rename /hello-jni/jni/hello-jni.c to
android.content.res.Resources$NotFoundException: String resource ID
#0x10
On Jul 16, 5:32 pm, Ethan ethanborg...@gmail.com wrote:
Hi all,
I am new to Android and Java (though have plenty of Javascript
experience). I am learning the language, the OS, and the programming
environment all at
Again, I say, what's your problem -- do you need to know how to fill
the database, or how to include it in your app?
A SQLite database consists of a single file on the PC or phone, and is
portable between them, so you can use any of a dozen methods to fill
the database file and then install it
alternative I have long considered exploring:
Motorola's documentation for their own spinoff of the Android SDK:
Motodev Studio for Android. You might give that a try. Their
documentation might please you more.
On Jul 16, 5:17 am, DanH danhi...@ieee.org wrote:
I've looked at the online
You might note that there are several different versions of Eclipse
you can use, and they may have different formatting policies. I know
the version I got with Websphere a year ago was far worse in this
regard than the vanilla version I downloaded for use with Android.
On Jul 17, 5:23 pm, A
worth, 24 hours is simply
unreasonably short: there is no way Android development could be
taught in 24 hours.
On Jul 15, 12:44 pm, DanH danhi...@ieee.org wrote:
Is there one? I have Professional Android 2 Application Development
by Meier and Teach Yourself Android Application Development
(I mean learned Java, not learned C++)
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I've been a software engineer for 40 years, and have taught myself --
let's see: BASIC, assembler on 6-8 different platforms, C, C++, Java,
Modula 2, Pascal, PL/I, several PL-whatever languages for IBM internal
use -- all from reading the reference manuals. Even designed my own
language for
On Jul 15, 6:35 pm, Maps.Huge.Info (Maps API Guru)
cor...@gmail.com wrote:
The best reference is the documentation supplied with the sdk. If
you want a better instructional book, I suggest looking at Mark
Murphy's set of books, they're fairly inexpensive and he constantly
updates them. You
I do have a subscription to the CommonsWare stuff. (Got it on the
recommendation of a co-worker.) I find the Acrobat format a bit
difficult to read and navigate through, but so far what little I've
read appears to be better than the other books. I haven't assessed
whether it's suitable for my
Yeah, you're not a virus developer or bad person. So all that Android
needs is an interface that will ask Is this developer a bad person?
and allow what you want if the answer is no. Should be easy to
implement!
(I haven't delved much into the Android permissions model, but I
suspect what you
Well, the IBM manuals could be pretty dry, but there were several that
were excellent. The Nutshell books generally do a good job of
balancing tutorial and reference info, though the references are
necessarily abbreviated.
As an example of a pretty good (though far from perfect) online
First off, are you sure that imageData_in is length long?
My JNI is a little rusty, but I recall that some of the JNI array ops
memory map the arrays (on some platforms), tying up considerable
additional pieces of address space. But I can't offhand think how
that might factor in here.
On Jul
In a nutshell, @id/xxx means use that pre-existing ID#. @+id/xxx
means assign a new ID# to that symbol and then use the ID#.
On Jul 15, 12:47 am, James Lee eso...@gmail.com wrote:
Hi, everyone~
I've some test about Android ListActvity. As you know, we have to set
@id/android:list as ListView
From the symptoms I would guess that either the code is in a tight CPU
loop or it's somehow consuming a lot of memory.
On Jul 16, 6:40 pm, Marc gobl...@gmail.com wrote:
I have this game, which is almost done. It has 1 critical bug. When
the app exits and restarts, the phone goes in to super
If the data is well-formed, to the latest HTML standard, you can parse
it with an XML parser. But very little HTML adheres to even the old
standards.
On Jul 14, 10:05 pm, zhou haitao haitaozho...@gmail.com wrote:
I want to get the data which I need from a html, how can I do it ?
Thanks
--
Did you upgrade your anti-virus? I've found that I have to turn off
much of my antivirus software for the emulator to work. I have
Norton, and eventually ended up turning off Insight, Antispyware,
and SONAR, leaving on only the basic Antivirus.
Also, under Windows (Vista) Computer/System
I mean Java. Along about 1.4 they reduced the number of exceptions by
maybe a factor of 10, but that still only brought it down from
hundreds to tens.
On Jul 14, 7:48 am, TreKing treking...@gmail.com wrote:
On Tue, Jul 13, 2010 at 9:58 PM, DanH danhi...@ieee.org wrote:
You'd be amazed how
Is there one? I have Professional Android 2 Application Development
by Meier and Teach Yourself Android Application Development in 24
Hours by Darcy/Conder. Both are mediocre at best.
Neither is a decent REFERENCE, but rather they are basically
structured as tutorials, without nothing in the
http://www.lg.com/us/support/mc-support/mobile-phone-support.jsp
On Jul 15, 10:46 am, ranjan ar ranjan@gmail.com wrote:
Hello all,
I am trying to Deploy my code from Eclipse to LG Ally mobile, I need to test
it on LG Ally. My laptop wouldn't recognize the device, I need to test my
code,
I wrote a JSON parser in Qt C++, which is kind of poor man's Java.
The whole file, encode and decode, is 520 lines. Basically you just
create a data structure that maps the JSON directly. Here's the
reference manual:
// The jsonObject is a QVariant that may be a --
// --
It should be noted that XML is really a pretty lousy language all
around -- hard to code, slow/difficult to parse, bulky. For many
purposes, if you have a choice, JSON is a better option if you need a
human-readable notation, and there are any number of internal forms
that would be better than
The choice between SAX and DOM is partly one of simplicity vs speed/
compactness, and partly a matter of what sort of consumption model
you have. If you're only going to scan through the XML once, and you
know what data you want, and it's pretty well formed (you know
precisely what order elements
Being a veteran, I figured it was some sort of stupid error. But also
being a veteran I knew that you can muddle around for a long time
before you figure out such things. (It would help if the text were
more like This is the default text for application .)
On Jul 12, 11:43 pm, Frank Weiss
You'd be amazed how many exceptions are thrown loading a single class.
On Jul 13, 5:05 pm, TreKing treking...@gmail.com wrote:
On Tue, Jul 13, 2010 at 2:30 PM, Frank Weiss fewe...@gmail.com wrote:
I suppose you might also try just catching the IllegalStateException which
would occur if not a
OK, just getting my feet wet (40 years of programming experience with
15 years Java, 6 months Qt on Nokia, but new to Android).
I spared you folks the befuddlement over the Waiting for emulator to
start hang (antivirus) and Starting: Intent hang (gotta push the
right buttons) , and I'm actually
I'm looking doing some Android development, and I'm wondering what
would be a good test device, and whether it should be unlocked. My
current cell service is with Verizon, and I could no doubt save
several hundred if I get a Verizon phone -- is that a good idea or
will I likely have problems
in my TextView.
On the bright side, it sent me looking for what R is, and I learned
quite a bit about the structure of an Android app as a result.
On Jul 9, 4:29 pm, DanH danhi...@ieee.org wrote:
OK, just getting my feet wet (40 years of programming experience with
15 years Java, 6 months Qt
Not super-fast, but javax.xml.parsers.DocumentBuilder.parse is simple
to use.
But of course one needs to know what to do with the parsed file
afterwards. DocumentBuilder produces a org.w3c.dom.Document object
which you then must navigate by working your way through the nodes or
by using xpath
apps on older devices. The phone will not need to
be rooted but if you want to switch between 2.0, 2.01, 2.1, or 2.2 you will
need to root it.
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