java-me

Is it possible to dynamically make TextField element disabled and enabled during the run time in Java ME? according to API documentation, setConstraints(TextField.UNEDITABLE) could do something like that: Sets the input constraints of the TextField... Note if you need to preserve contents and modifier flags, parameter passed to above method might require some tweaking, like setConstraints((getConstraints() & TextField.CONSTRAINT_MASK) | TextField.UNEDITABLE) // "disable" - set UNEDITABLE above to disable, and to enable back, something like: setConstraints((getConstraints() & TextField

I am new to JSON programming in J2ME. I discovered that Json is used to exchange data much like XML. I want to know about the exchange in Array object from JSONtoObject and vice versa Below written is code where I convert from JSON to Object and vice versa. But I don't know about how to do for complex data structure like arrays etc. // App Loader import javax.microedition.midlet.MIDlet; import javax.microedition.midlet.MIDletStateChangeException; public class AppLoader extends MIDlet { public AppLoader() { // TODO Auto-generated constructor stub // Converting Object to JSON UserData data=new

I use a png image in my project that is not displayed in emulator but it can be displayed in phone. Then i open it with photoshop, save as png and use that image. It is displayed both emulator and phone. I couldn't figure out the difference of original and edited one. And is there any setting of emulator for image display? And how can i understand any png file is supported or not? original image edited image I preferred PNG files is good for MIDP. You can check following links, It will helps you. What image types does MIDP support? Image Formats in J2ME 来源： https://stackoverflow.com/questions

As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance. Closed 8 years ago . I have been tasked with updating my teams dev. environment. This environment will be used to develop and test J2ME and Android mobile applications. I am looking at NetBeans 6.8 and Eclipse 3.6. Do you have any recommendations for why

I am working on a BlackBerry Application which requires the application be running once its sent to the background also. I would really appreciate it if someone could guide me to any tutorials related to running background services in BlackBerry. BBdev Background Application is a kind of process so you should extend Application instead of extending Uiapplication . In your main class implement all your code. You can also see this StackOverflow question for an example: Blackberry - Running Background Application Ashish Agarwal RIM has posted an article about running applications in background on

I am trying to add JSpeex's jar file to Blackberry project. Compilation fails if I add it. Also, if I add source files to the project, compilation fails as JSpeex is pure Java and classes are not supported in Blackberry app. Please help me to resolve the issue... Thanks in advance. Pure Java? Keep in mind that the Blackberry JVM is still based on J2ME , which is kind of a subset of java. To include external JAR follow the Knowledge Base Entry How To - Compile a jar file into a BlackBerry Library Another way is to extract your jar file (change the file ending to .zip instead of .jar and extract