[android-developers] Re: Activity Back Stack and OutOfMemoryError

2014-05-11 Thread Piren
Android has this particular annoying and weird behavior: Once the heap inflates to a certain size, no matter how much of it is actually used, you can no longer allocate files that are larger than the remaining memory. my guess, you're there. you should make sure your previous activities use as

Re: [android-developers] RelativeLayout issue

2014-05-11 Thread dashman
android:layout_alignParentLeft=true android:layout_alignParentRight=true No changes - still the full width of the parent View (not layout) On Saturday, May 10, 2014 9:06:10 PM UTC-4, TreKing wrote: On Sat, May 10, 2014 at 6:57 PM, dashman erjd...@gmail.com

Re: [android-developers] RelativeLayout issue

2014-05-11 Thread Piren
I've come across something like that before. RelativeLayouts do not like their children doing something like that (or asking to be aligned to the right/bottom). Just use a size variable for both the parent and child (see dimensions.xml), will save you the headache understanding android's

Re: [android-developers] RelativeLayout issue

2014-05-11 Thread Kostya Vasilyev
Yep: a child with alignParentRight / alignParentBottom will cause the parent (the RelativeLayout) to stretch to the entire width / height of *its* parent. -- K 2014-05-11 17:05 GMT+04:00 Piren gpi...@gmail.com: I've come across something like that before. RelativeLayouts do not like their

Re: [android-developers] Re: Activity Back Stack and OutOfMemoryError

2014-05-11 Thread Daniel Rindt
2014-05-11 14:00 GMT+02:00 Piren gpi...@gmail.com: Android has this particular annoying and weird behavior: Once the heap inflates to a certain size, no matter how much of it is actually used, you can no longer allocate files that are larger than the remaining memory. my guess, you're there.

Re: [android-developers] RelativeLayout issue

2014-05-11 Thread dashman
But isn't the logical parent of the child - it's layout parent. in that i've set the width explicitly. On Sunday, May 11, 2014 9:12:00 AM UTC-4, Kostya Vasilyev wrote: Yep: a child with alignParentRight / alignParentBottom will cause the parent (the RelativeLayout) to stretch to the entire

Re: [android-developers] looking for HTML5 and javascript based sdk....

2014-05-11 Thread Kristopher Micinski
First of all, this is just downright false, JS *will* be slower than Java, but I'll address each of your points. On Sun, May 11, 2014 at 12:51 AM, 李白|字一日 calid...@gmail.com wrote: thanks for the reply. but i may think differently. javascript runtime can be shared, and no new memory

Re: [android-developers] looking for HTML5 and javascript based sdk....

2014-05-11 Thread Larry Meadors
If you're thinking Java is slow on a desktop compared to c++, you're right - it is. But Android doesn't actually run Java. :-| You write code using the Java language. It's compiled into Java bytecode. That bytecode is then processed again to create Dalvik dex files for Android. Dalvik is

Re: [android-developers] looking for HTML5 and javascript based sdk....

2014-05-11 Thread 李白|字一日
please have a look at this. http://www.reddit.com/comments/1jw6h7 seems dalvik is slower. 2014-05-11 22:28 GMT+08:00 Kristopher Micinski krismicin...@gmail.com: First of all, this is just downright false, JS *will* be slower than Java, but I'll address each of your points. On Sun, May 11,

Re: [android-developers] looking for HTML5 and javascript based sdk....

2014-05-11 Thread 李白|字一日
javascript is not java, which doesn't necesarily need a vm. It is dynamic, but not a vm based language 2014-05-12 0:34 GMT+08:00 李白|字一日 calid...@gmail.com: please have a look at this. http://www.reddit.com/comments/1jw6h7 seems dalvik is slower. 2014-05-11 22:28 GMT+08:00 Kristopher

Re: [android-developers] looking for HTML5 and javascript based sdk....

2014-05-11 Thread Colin M
Some operations are faster in Java these days, _most_ are functionally equal, and a few special cases (not relevant to most developers), C++ is a better choice. Making the blanket Java is slow statement is just factually wrong today. Can we move on from 1992, please? I'd add to your last

[android-developers] Re: looking for HTML5 and javascript based sdk....

2014-05-11 Thread Colin M
I'll ignore the unqualified claim that the slowness of Android is due to Java. It sounds like your complaint is that you can't develop native apps in your preferred language and that you're using an outdated claim about Java to support your desire to change the current language of choice for

Re: [android-developers] Re: looking for HTML5 and javascript based sdk....

2014-05-11 Thread 李白|字一日
if it is not, why should you go native with c/c++ based ndk programming? it is surely related to the programming language. javascript 's speed acceleration is also related to the language and its optimization, which is almost always c/c++. i have never experienced the fast feeling of java

Re: [android-developers] Re: looking for HTML5 and javascript based sdk....

2014-05-11 Thread Kristopher Micinski
Everything you are saying here is I have heard Java is slow, and that's what is probably making Android slow! Here's an example of some things I think are slow because of Java. Now I'm going to apply this as evidence to the entire Android platform to show why Java must be slow on it. Please

Re: [android-developers] Digest for android-developers@googlegroups.com - 12 updates in 5 topics

2014-05-11 Thread Narendrasingh Shekhawat
On May 10, 2014 11:41 AM, android-developers@googlegroups.com wrote: Today's topic summary Group: http://groups.google.com/group/android-developers/topics - Handling touch events inside a listview#145e4c1adb00dd20_group_thread_0[2 Updates] - Activity Back Stack and

Re: [android-developers] Re: looking for HTML5 and javascript based sdk....

2014-05-11 Thread bjv
Ugh! You don't get it and likely never will. There are so many things wrong with your assumptions/statements in all of these threads. It really isn't worth the time to debunk them all. But for what its worth, there is small overhead with respect to running Java/Dalvik on Android. That said, it

Re: [android-developers] Re: looking for HTML5 and javascript based sdk....

2014-05-11 Thread 李白|字一日
in effect, you are making the acknowledgement that java is slow and fat not just because of the dalvik. even with ART, there is no evidence that Java will be more efficient, though there may be some improvement. 2014-05-12 11:22 GMT+08:00 bjv bjvet...@gmail.com: Ugh! You don't get it and

Re: [android-developers] Re: looking for HTML5 and javascript based sdk....

2014-05-11 Thread Kristopher Micinski
I don't get your point: Java needs a runtime. JavaScript needs a runtime. Both of them need runtimes. He never said Dalvik was slow, but everything can be optimized. Does native code run faster than interpreted / JIT code? Probably. The *exact same thing* is going to be an issue with

Re: [android-developers] Re: looking for HTML5 and javascript based sdk....

2014-05-11 Thread 李白|字一日
the slow comes not just from the loading of java based apps. but the java itself and the bad programming guidance, which uses too many threads and classes which take a lot space. and what even worse is you will sometimes have to do deep inheritance. it adds extra overheads to make itself run.

Re: [android-developers] Re: looking for HTML5 and javascript based sdk....

2014-05-11 Thread Kristopher Micinski
What are you even talking about: Any JavaScript program is also going to have threads, too. You seem to be making this argument: Java has multiple threads, and that makes the programs slow. It sounds like all of this is coming from a completely uneducated viewpoint on systems design, but there

Re: [android-developers] Re: looking for HTML5 and javascript based sdk....

2014-05-11 Thread 李白|字一日
you even don't know what javascript is . although javascript needs more than one threads to execute, but it is event based. in run time, it has no needs to create new thread. like epoll vs select in network io. the differences are obvious. java can't make it. the switch between ui thread to