java-me

问题 I'm looking for an algorithm that rotates an image by some degrees (input). public Image rotateImage(Image image, int degrees) (Image instances could be replaced with int[] containing each pixel RGB values, My problem is that i need to implement it for a JavaME MIDP 2.0 project so i must use code runnable on JVM prior to version 1.5 Can anyone help me out with this ? EDIT: I forgot to mention that i don't have SVG APIs available and that i need a method to rotate by arbitrary degree other

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 6 years ago . An important part of mobile development, especially when you are talking about mobile games, is dealing with the application size restrictions. Some devices enforce their own size limits, while all the carriers have their own size requirements for applications to be released in their deck space. My question is,

问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 4 years ago . Can we run or develop apps for iPhone in Java? Have a look to these links and answer: http://www.iphonefaq.org/archives/9731 http://www.j2mepolish.org/cms/leftsection/documentation/platforms/iphone.html http://www.ibm.com/developerworks/opensource/library/os-eclipse-iphone/ 回答1:

问题 I want to know how to parse XML data on a BlackBerry. I read somewhere that JSON is good method to parse xml data. Are there any tutorials to parse XML data using JSON, or any other mechanism? 回答1: Parsing XML in Blackberry Simple API for XML (SAX) was developed by the members of a public mailing list (XML-DEV).It gives an event based approach to XML parsing. It means that instead of going from node to node, it goes from event to event. SAX is an event driven interface. Events include XML tag

问题 I am beginning in java (I'm learning in microedition) and I got this error: "int cannot be dereferenced" in the following class: class DCanvas extends Canvas{ public DCanvas(){ } public void drawString(String str, int x, int y, int r, int g, int b){ g.setColor(r, g, b); //The error is here g.drawString(str, x, y, 0); //and here } public void paint(Graphics g){ g.setColor(100, 100, 220); g.fillRect(0, 0, getWidth(), getHeight()); } } What am I doing wrong here? Well I came from PHP and

问题 How do I implement an image button in BlackBerry? 回答1: here you go, complete code: import net.rim.device.api.system.Bitmap; import net.rim.device.api.ui.Graphics; import net.rim.device.api.ui.component.ButtonField; /** * Button field with a bitmap as its label. */ public class BitmapButtonField extends ButtonField { private Bitmap bitmap; private Bitmap bitmapHighlight; private boolean highlighted = false; /** * Instantiates a new bitmap button field. * * @param bitmap the bitmap to use as a

问题 It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center. Closed 7 years ago . I want to check the 10 digit phone number whether all 10 digits are same or different. If same means Invalid mobile number alert will be displayed. I want a code in LWUIT. 回答1: set the TextField max size to 10.

问题 I've been following below tutorial on how to create a calendar widget in Java ME. I can't seem to get it to work. When I run the application it just says it's running in the background. I guess I'm not initializing it properly. Where exactly to put the code located at the bottom of the page to make it display to the java phone screen? The link to the tutorial is here apart from a few minor variable name differences the code is identical. http://www.developer.nokia.com/Community/Wiki/Building

问题 I have just begun developing using J2ME using Eclipse Pulsar and I am trying to work out how you go about giving eclipse the associated javadoc for all of the CDLCs. I am using the Symbian S60 5th edition SDK if that makes any difference. Thanks in advance. 回答1: On the Windows>Preferences>Java ME>Device Management dialog choose the device that you are using and push the edit button. This should open a new dialog. You can edit the javadoc locations on the libraries tab. 来源： https:/

问题 I want to write an application that sends text from one device to another. How can I test it with an emulator on a PC? Is it possible with the Sun Java Wireless Toolkit? 回答1: Yes, it is possible, at least with version 2.5.2_01 Just launch the emulator 2 or more times, and the phones "find" each other 来源： https://stackoverflow.com/questions/3431826/j2me-how-to-test-bluetooth-application-on-emulator