[android-developers] Re: How to calculate the distance between two degree values? (for example: 350º to 15º = 25º / 250º to 190º = 60º)
On Tuesday, September 27, 2011 7:29:09 AM UTC-7, saex wrote: there is a function or something on Java to calculate the distance between two degree values? (min 0º and max 360º) for example: 350º to 15º = 25º 250º to 190º = 60º Which way do you want it? They cannot both be correct. Bearing is conventionally calculated positive-clockwise with 0° at North (or face forward for relative bearing), most maths work positive-counterclockwise with 0° corresponding to the positive x axis. Either way, 350° to 15° is +25° or -335°, and 250° to 190° is -60° or +300°, depending on how you want to play it. You can use the remainder operator or manually add or subtract 360° to make things fall into your desired target range. Your basic operation is subtraction modulo 360. A conventional range is [-180°, 180°). etc... Etc. takes a single period to end the abbreviation. The term etc. only makes sense once you have established a consistent pattern, which your post did not. -- Lew -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: Android is worst os mobile is this true
Android is the worst form of mobile OS except for all those other forms that have been tried from time to time ... -- Apologies to unknown source as cited by Winston Churchill. http://richardlangworth.com/democracy-is-the-worst-form-of-government -- Lew blake wrote: Oh man. This is such a bummer. I'd been thinking it was pretty cool... wanyce ashoura wrote: [Android is worst os mobile is this true] Yes i should say that Why because of more then one reason 1- not support Arabic language at all meaning you need long time to get Arabic support in any kind of android Mobile's 2- alot of futures not founded in android like what * redial . *voice mail . *gps navigator offline . * voice command offline . *proxy . * a lot of security issues . *suck in browsing web site's *crazy market request any program will some times downloaded and may will not or pause download . 3- is android real free software and open source i do not think so is near to windows mobile just android use linux kernel and java but is not cool at all 4-blue tooth is crazy to used in android 5-not support any thing we dream about it about me i am waiting for the best came from android from long time before and now i have no hope about this os because is just another low level mobile os like symbian or badi or windows low level meaning is not reach what we as user's wanted not is programing 5- release 1.5 and 2.0 2.1 2.2 2.3 and jump to 3.0 3.1 3.2 but what about other version's is them not deserve some of update's and improvement just jump like this .. == i hope this e-mail reach real developer behind android and them start moving up and give us some hope to we can have mobile's can do what almost we wanted -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Is this a joke??
https://memegen.googleplex.com/906 Daniel Drozdzewski wrote: Steven Bruce wrote: http://developer.android.com/reference/android/app/ActivityManager.html#isUserAMonkey() What is this supposed to do? Looks like Google having a laugh or something?? :p http://developer.android.com/guide/developing/tools/monkey.html -- Lew -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: Simulate GPS Failure
Parking garages have worked very well to block GPS and other signals in my experience. Nathan: How do you do a mock location provider? -- Lew On Tuesday, August 23, 2011 6:12:05 PM UTC-7, davemac wrote: You might try holding it inside your kitchen oven (oven not turned on of course). - dave On Aug 23, 9:07 pm, burton miller burton...@gmail.com wrote: I'm not sure about the type of failure, because it does not happen in my code - it happens in the advertiser's code, and some of my users are getting a dialog telling them that 'GPS is failing.' My code fails gracefully on location problems :) If I can repro it, then I can determine which advertiser it is, and contact them. That is a serious bug. I'll try the metal building trick. Maybe a parking garage. On Aug 23, 4:26 pm, Nathan critt...@crittermap.com wrote: On Aug 23, 3:08 pm, burton miller burton...@gmail.com wrote: I have an app that uses ads for revenue. And one of my ad vendors is putting up a show-stopper dialog when GPS is on, but fails. I can't tell which one it is. How do you simulate GPS failure (while enabled)? Any ideas? What type of failure? Failure to receive a position update? Real GPS or network location? If real GPS, try it inside a building with a metal roof, like a mall. You could also do a mock location provider. -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: Vector
+1 to blake's comments.
A couple more points, inline:
blake wrote:
Chris is right, that gets rid of the error, but I bet it is not what
bob is trying to accomplish. Chris' solution will create a Java array
of 9 Vectors.
I have a couple of suggestions, here:
1) Don't ever use Vectors. They are historical cruft. Use List and
ArrayList
In particular, the methods of 'Vector' are synchronized, which is often not
what you want or need, and it contains legacy methods and members that are
not compatible with the collections framework. 'Vector' has been out of
date since 1998! It never ceases to amaze me that people still want to use
it. I will bet dollars to doughnuts that the OP wasn't programming with
Java yet in 1998.
2) Don't mix generics and Java arrays. It gets weird
That's putting it mildly. The Java Language Specification explicitly
states, ... the element type in an array creation expression cannot be a
parameterized type, other than an unbounded wildcard.
(§15.10
http://java.sun.com/docs/books/jls/third_edition/html/expressions.html#46168
)
I suspect that what bob wants is
import java.util.List;
public class Oracle {
public static ListArticle articles;
public static void init(){
articles = new ArrayListArticle(9);
}
}
... and you can leave the 9 out, because the ArrayList will grow as
needed...
Note blake declares the variable 'articles' as type 'List' rather than an
unnecessarily specific type, adhering to Item 52: Refer to objects by their
interfaces from _Effective Java_ by Joshua Bloch.
http://java.sun.com/docs/books/effective/toc.html
Chris wrote:
articles = new VectorArticle[9];
try articles = (VectorArticle[]) new Vector[9];
Again, neither of these is legal. You can get around it with
'@SuppressWarnings', but shouldn't.
The chapter on generics from _Effective Java_ [_op. cit._] is free to
download and will help here.
Take heed of Item 23: Don't use raw types in new code.
--
Lew
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[android-developers] Re: How to detect HTML tag?
On Aug 8, 10:43 pm, ndiiie90 wrote: What i mean is to replace all tags in data that is retrieved from database.. So for example, the data is: I am a java amp android developer will be replaced into: I am a java android developer That is not a valid replacement, actually, as entities are set off by ampersand and semicolon characters, e.g., amp;. How can i do that? I think it is not effective to replace all tag by proper character What exactly do you mean by not effective and why do you think that would be a problem? The classes and methods suggested by other respondents would be quite effective as far as I can tell. You might also consider the java.util.regex package. In the same package with android.text.Html there are other potentially useful classes, such as android.text.TextUtils. Bear in mind that there a quite a few entities you will want to parse. http://www.w3schools.com/tags/ref_symbols.asp -- Lew -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
