java-me

问题 I want to get the cellid,mcc,mnc,lac data of mobile for any device like nokia,motorola,samsung i had google it and able to found it for sony..But cant able to find it for samsung ,nokia,motorola. For sony erricson device i had used the below:- String cellid = System.getProperty("com.sonyericsson.net.cellid"); String mcc = System.getProperty("com.sonyericsson.net.cmcc"); String mnc = System.getProperty("com.sonyericsson.net.cmnc"); String lac = System.getProperty("com.sonyericsson.net.lac");

问题 I want to get the cellid,mcc,mnc,lac data of mobile for any device like nokia,motorola,samsung i had google it and able to found it for sony..But cant able to find it for samsung ,nokia,motorola. For sony erricson device i had used the below:- String cellid = System.getProperty("com.sonyericsson.net.cellid"); String mcc = System.getProperty("com.sonyericsson.net.cmcc"); String mnc = System.getProperty("com.sonyericsson.net.cmnc"); String lac = System.getProperty("com.sonyericsson.net.lac");

问题 My midlet uses two record stores. Currently, I create/open both record stores when the app starts and I leave them both open for the entire lifetime of the app. If I open/close the record store after each operation (e.g., reading or writing) the delays are really bad in the emulator. Similarly, if I close the recordstores when the app exits, there is another very long delay. So is it OK for me to never close the record stores in my code (thereby, presuming the device will do this itself when

问题 How to prevent the app from going to sleep mode in blackberry using J2ME? I have seen this suggestion to do a Key Injection also read this docs from Native SDK. But I am not sure whether the second method works with J2ME. How can I do this efficently in blackberry with J2ME? 回答1: I think this may be achieved ... you can send keyBoard event to the device. For more information see this Prevent BlackBerry From Going Into Sleep Mode. 回答2: About disabling sleep mode, you can read this article. To

问题 How to prevent the app from going to sleep mode in blackberry using J2ME? I have seen this suggestion to do a Key Injection also read this docs from Native SDK. But I am not sure whether the second method works with J2ME. How can I do this efficently in blackberry with J2ME? 回答1: I think this may be achieved ... you can send keyBoard event to the device. For more information see this Prevent BlackBerry From Going Into Sleep Mode. 回答2: About disabling sleep mode, you can read this article. To

问题 How to prevent the app from going to sleep mode in blackberry using J2ME? I have seen this suggestion to do a Key Injection also read this docs from Native SDK. But I am not sure whether the second method works with J2ME. How can I do this efficently in blackberry with J2ME? 回答1: I think this may be achieved ... you can send keyBoard event to the device. For more information see this Prevent BlackBerry From Going Into Sleep Mode. 回答2: About disabling sleep mode, you can read this article. To

问题 Is there any way of showing Wait Screen, while some processing is done in backend, using LWUIT in J2ME ? if yes then how if no then is there any alternate ? 回答1: You can look at progress bar with LWUIT. Sample Wait screen used in the makeover demo and the browser demo application in current LWUIT Repository. Also see here. 回答2: I had this issue as well, but got a workaround: these suggestions here seemed not to be the best for me. The dialog when it displays will block any other action except

问题 I created lib for my blackberry java app (jar file). But it isn't work. com.myapp.MyManager: Error!: Missing stack map in: getInstance at label: 31 What is this? If i copy package of my lib to my blackberry app, it works well. But I need have lib. 回答1: You need to preverify the jar file manually. you can do the following to preverify the jar. execute the following command: preverify -classpath "JDE_PATH_HERE\lib\net_rim_api.jar" "your_jar_filename" Read more: http://getablogger.blogspot.com

问题 I'm looking for a free or toll library. Update It looks like there is no such a library, but the following code works like expected: /** * * @param img Image to modify * @param sepiaIntensity From 0-255, 30 produces nice results * @throws Exception */ public static void applySepiaFilter(BufferedImage img, int sepiaIntensity) { // Play around with this. 20 works well and was recommended // by another developer. 0 produces black/white image int sepiaDepth = 20; int w = img.getWidth(); int h =

问题 I want to count days between two date, I found some solutions on the net but the problem is in my NetBeans the GregorianCalendar is not available. So cant calculate the days. Can anyone help ? 回答1: In Java Micro Edition you don't have GregorianCalendar, so you have to use: Date startDate, endDate; ... int days = (int) ((endDate.getTime() - startDate.getTime()) / (1000 * 60 * 60 * 24)); Where the getTime() method of a Date returns the number of milliseconds since January 1, 1970, 00:00:00 GMT