Focus of the application
Hi guys,.
Is it possible to know when the application gets the focus when the application loses focus? As if the application is running and you press the end key, the application is relegated to second place?
Thanks in advance
enable and disable the UiApplication methods
Tags: BlackBerry Developers
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Hello
Ago may messages on roll on icon.
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This problem is rather difficult to describe, and I do not know the correct jargon, so I had to hurt looking for another thread that can ask the same question.
Situation: I have two applications (this happens with any combination of applications), let's say TextEdit and calculator. The 'focus' is on the calculator. I can type in numbers from the keyboard, or click with the mouse on the calculator figures so he computes. No problem. But, if I want to then bring 'focus' to the TextEdit window - where if I type something - when I move the mouse anywhere on the window in TextEdit and click, it does not update to TextEdit and it remains greyed out. the focus remains on calculator.
In order to get to restore the focus to TextEdit so I can type, I have to click twice on the app. However, I can't double-click on it or it will minimize the window. I have to click once, wait a few seconds, so it won't register as a doubclick and then click New. It of incredibly frustrating, slows down my work flow and I cannot for the life of me figure out how to change it. Happened for quite awhile, and I think changed after I downloaded some sort of new update, which one I don't remember unfortunately.
Again, this happens with both applications. I am aware to be able to use the command + tab to switch between apps and I use it often, but sometimes using my mouse to organize windows or any other action is necessary.
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This would be me a lot.
It is a test to identify the problem. Create a new account. See if the problem persists.
Move the finder to the desktop preferences.
http://osxdaily.com/2014/12/16/show-user-library-folder-OS-x-Yosemite/
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In fact, the scenario is a little more complicated than what is described.
There is a main VI has a user interface that uses a Structure of the event to capture / process the events of the operator. This same main VI also called live dynamic. One of them has its own Structure of the event. The code for the two screws was developed using LVOOP.
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Danielle:
Matteo has given you some useful links if you want to give your app focus. But when I read your post, it looks like your application takes the focus and you don't want it.
The attached sample project shows two ways to allow another application to keep focus when your application will normally consider.
Both methods use the Windows SDK functions (a.k.a. Win32 API) to get or set the foreground window (the one with focus). The Windows SDK is not installed by default with CVI. It comes with the full package and the Suite OR developers, but not with the basic package. If you have the complete package or suite, and you do not have the SDK installed, you just re-run the installation of the CVI and select only the SDK (or Win32 API).
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The second method checks if your app CVI is the foreground window before displaying the new window. It does not display your new Panel if another application has the focus. This way you don't get the blinks of update to your application CVI. Depending on the purpose of your new Panel, you may have to display the new Panel when your application receives the focus instead to wait until 20 seconds to display.
For demonstration purposes, this sample application appears again just the main draw instead of display a new Panel. The two methods will be work the same way for a new Panel as well.
Instructions for running the demo and see the two different methods are on the main Board. Just build the application and run it. I tested this example in CVI 6.0 and version 9.0.1.
Having said all that, I have a question for you. Why your application CVI shows a new sign every 20 seconds? You can update an existing panel without using the DisplayPanel command and forcing the update to your application CVI. Do you need a new Billboard? And what happens after 20 seconds? The first Panel again get hidden or destroyed? Are another new panel displayed?
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The problem is only a HFM, when focus activates it by underneath, will automatically set the focus to the last item in the list. Therefore, substitute this transformation.
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Main:
import net.rim.blackberry.api.browser.Browser; import net.rim.blackberry.api.browser.BrowserSession; import net.rim.device.api.servicebook.ServiceBook; import net.rim.device.api.servicebook.ServiceRecord; import net.rim.device.api.system.Characters; import net.rim.device.api.system.EncodedImage; import net.rim.device.api.ui.Color; import net.rim.device.api.ui.DrawStyle; import net.rim.device.api.ui.Field; import net.rim.device.api.ui.Font; import net.rim.device.api.ui.Graphics; import net.rim.device.api.ui.UiApplication; import net.rim.device.api.ui.component.BitmapField; import net.rim.device.api.ui.component.LabelField; import net.rim.device.api.ui.container.HorizontalFieldManager; import net.rim.device.api.ui.container.MainScreen; import net.rim.device.api.ui.container.VerticalFieldManager; import net.rim.device.api.ui.decor.Background; import net.rim.device.api.ui.decor.BackgroundFactory; public class SmartoneVodafoneServices extends UiApplication { public static void main(String arg[]) throws Throwable { SmartoneVodafoneServices application = null; application = new SmartoneVodafoneServices(); application.enterEventDispatcher(); } public SmartoneVodafoneServices() throws Throwable { pushScreen(new SmartoneVodafoneServicesScreen()); } } class SmartoneVodafoneServicesScreen extends MainScreen { //private TableLayoutManager table = TableDefine(); private String url = "http://202.140.96.134:8080/Hero/shortcuts_demo.xml"; private static ServiceBook sb = ServiceBook.getSB(); private static ServiceRecord[] records = sb.findRecordsByCid("BrowserConfig"); public SmartoneVodafoneServicesScreen() throws Throwable { super(); LabelField title = new LabelField("Smartone Vodafone Services", DrawStyle.ELLIPSIS | Field.USE_ALL_WIDTH | DrawStyle.HCENTER); setTitle(title); Background bg = BackgroundFactory.createSolidBackground(Color.BLACK); getMainManager().setBackground(bg); String[][] arr = null;EncodedImage pic = null;int p = 0; UiApplication.getUiApplication().getScreenCount(); arr = Conn.WorkForXML(url); HorizontalFieldManager mainHManager = new HorizontalFieldManager(Field.FIELD_VCENTER); VerticalFieldManager col1 = new VerticalFieldManager(Field.FIELD_HCENTER); VerticalFieldManager col2 = new VerticalFieldManager(Field.FIELD_HCENTER); VerticalFieldManager col3 = new VerticalFieldManager(Field.FIELD_HCENTER); VerticalFieldManager col4 = new VerticalFieldManager(Field.FIELD_HCENTER); VerticalFieldManager col5 = new VerticalFieldManager(Field.FIELD_HCENTER); for (int i = 0; i < arr.length; i++) { if (arr[i][0] != null || arr[i][1] != null || arr[i][2] != null) { LabelField name = showName(arr[i][0]); pic = Conn.GetPngField(arr[i][1]); final String link = arr[i][2]; //final String link = "http://202.140.96.134:8080/blackberry/index.html"; BitmapField myBitmapField = new BitmapField(pic.getBitmap(),Field.FOCUSABLE|FIELD_VCENTER){ protected boolean invokeAction(int status){ //BrowserSession site = Browser.getDefaultSession(); BrowserSession site = createWAPBrowserSession(); site.displayPage(link); return true; } protected void paint(Graphics g) { g.setBackgroundColor(Color.BLACK); g.drawRoundRect(0, 0, getWidth(), getHeight(), 10, 10); g.setColor(Color.WHITE); super.paint(g); } }; switch (p) { case 0: col1.add(new LabelField(" ",LabelField.NON_FOCUSABLE)); col1.add(myBitmapField); col1.add(name); break; case 1: col2.add(new LabelField(" ",LabelField.NON_FOCUSABLE)); col2.add(myBitmapField); col2.add(name); break; case 2: col3.add(new LabelField(" ",LabelField.NON_FOCUSABLE)); col3.add(myBitmapField); col3.add(name); break; case 3: col4.add(new LabelField(" ",LabelField.NON_FOCUSABLE)); col4.add(myBitmapField); col4.add(name); break; case 4: col5.add(new LabelField(" ",LabelField.NON_FOCUSABLE)); col5.add(myBitmapField); col5.add(name); break; } p ++; if ( p == 5 ){ p = 0; } } } mainHManager.add(col1); mainHManager.add(col2); mainHManager.add(col3); mainHManager.add(col4); mainHManager.add(col5); add(mainHManager); } public LabelField showName(String name) { return new LabelField(name,LabelField.NON_FOCUSABLE|LabelField.FIELD_VCENTER){ protected void paint(Graphics g) { Font myFont = Font.getDefault().derive(Font.PLAIN, 7); g.setColor(Color.WHITE); g.setFont(myFont); super.paint(g); } }; } public static BrowserSession createWAPBrowserSession() { // If there are browser services found - search for the WAP2 // Service Record String uid = null; int numRecords = records.length; for( int i = 0; i < numRecords; i++ ) { ServiceRecord myRecord = records[i]; //if (myRecord.getName()){ if (myRecord.getUid().equals("WAP Browser Smartone")==true){ uid = myRecord.getUid(); } } return Browser.getSession(uid); } public boolean keyChar(char key, int status, int time) { switch (key) { case Characters.ESCAPE: System.exit(0); break; } return true; //return true to indicate that a key was pressed } }Conn.Java
import java.io.*; import javax.microedition.io.*; import net.rim.blackberry.api.browser.Browser; import net.rim.blackberry.api.browser.BrowserSession; import net.rim.device.api.math.*; import net.rim.device.api.servicebook.ServiceRecord; import net.rim.device.api.system.*; import net.rim.device.api.ui.Color; import net.rim.device.api.ui.Field; import net.rim.device.api.ui.Graphics; import net.rim.device.api.ui.XYEdges; import net.rim.device.api.ui.component.BitmapField; import net.rim.device.api.ui.decor.Border; import net.rim.device.api.ui.decor.BorderFactory; import net.rim.device.api.xml.parsers.*; import org.w3c.dom.*; public class Conn { /** * @return * @throws IOException * @throws Throwable * @throws Throwable */ public static String[][] WorkForXML(String url) throws IOException, Throwable { // TODO Auto-generated method stub String[][] arr = null; HttpConnection conn = null; Document doc; conn = (HttpConnection) Connector.open(url); conn.setRequestMethod(HttpConnection.GET); try { if (conn.getResponseCode() == HttpConnection.HTTP_OK) { DocumentBuilderFactory docBuilderFactory = DocumentBuilderFactory.newInstance(); DocumentBuilder docBuilder = docBuilderFactory.newDocumentBuilder(); docBuilder.isValidating(); doc = docBuilder.parse(conn.openInputStream()); conn.close(); doc.getDocumentElement().normalize(); NodeList list = doc.getElementsByTagName("item"); arr = new String[list.getLength()][3]; for (int i = 0; i < list.getLength(); i++) { Node nNode = list.item(i); NodeList sList = nNode.getChildNodes(); if (sList.item(1).getFirstChild().getNodeValue().equals("0")) { arr[i][0] = sList.item(3).getFirstChild().getNodeValue(); arr[i][1] = sList.item(7).getFirstChild().getNodeValue(); arr[i][2] = sList.item(11).getFirstChild().getNodeValue(); } } conn=null; docBuilderFactory = null; docBuilder = null; } } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (ParserConfigurationException e) { // TODO Auto-generated catch block e.printStackTrace(); } return arr; } public static EncodedImage GetPngField(String pic) throws IOException { EncodedImage imageField = null; HttpConnection picon = null; picon = (HttpConnection) Connector.open(pic); picon.setRequestMethod(HttpConnection.GET); try { if (picon.getResponseCode() == HttpConnection.HTTP_OK) { DataInputStream inputStream = picon.openDataInputStream(); ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream(); byte[] buffer = new byte[5120]; int len = 0, imageSize = 0; while (-1 != (len = inputStream.read(buffer))) { byteArrayOutputStream.write(buffer); imageSize += len; } byteArrayOutputStream.flush(); picon.close(); picon=null; byte[] imageData = byteArrayOutputStream.toByteArray(); byteArrayOutputStream.close(); byteArrayOutputStream = null; inputStream = null; //imageField = PNGEncodedImage.createEncodedImage(imageData, 0, imageSize); EncodedImage pngImage = PNGEncodedImage.createEncodedImage(imageData, 0, imageSize); imageField = resizeImage(pngImage,55,55); } } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } return imageField; } public static EncodedImage resizeImage (EncodedImage png,int Height, int Width) { int currHeight,currWidth,multH = 0,multW = 0; try { currHeight = png.getHeight(); currWidth = png.getWidth(); multH = Fixed32.div(Fixed32.toFP(currHeight),Fixed32.toFP(Height)); multW = Fixed32.div(Fixed32.toFP(currWidth),Fixed32.toFP(Width)); } catch (Exception e) {} return png.scaleImage32(multH,multW); } }I have
hyoryeo wrote:
Thanks ydarishy & peter_strange,
I just point the programmer SR. is not recommended to use the wire in my workplace. But I think that the wire is the good way to make my faster program because I found that the wire would be used in many places in the Blackberry. Then I would practice the Thread in the test project.have been changes to the program and use the wire, saw the fastest forward speed. I would add the bar of charge process if necessary of the head. Thanks ydarishy & peter_strange,.
SmartoneVodafoneServices.java
import java.util.Vector; import net.rim.blackberry.api.browser.Browser;import net.rim.blackberry.api.browser.BrowserSession;import net.rim.device.api.servicebook.ServiceBook;import net.rim.device.api.servicebook.ServiceRecord;import net.rim.device.api.system.Characters;import net.rim.device.api.ui.Color;import net.rim.device.api.ui.DrawStyle;import net.rim.device.api.ui.Field;import net.rim.device.api.ui.UiApplication;import net.rim.device.api.ui.component.LabelField;import net.rim.device.api.ui.container.HorizontalFieldManager;import net.rim.device.api.ui.container.MainScreen;import net.rim.device.api.ui.container.VerticalFieldManager;import net.rim.device.api.ui.decor.Background;import net.rim.device.api.ui.decor.BackgroundFactory; public class SmartoneVodafoneServices extends UiApplication { public static void main(String arg[]) throws Throwable { SmartoneVodafoneServices application = null; application = new SmartoneVodafoneServices(); application.enterEventDispatcher(); } public SmartoneVodafoneServices() throws Throwable { pushScreen(new SmartoneVodafoneServicesScreen()); }} class SmartoneVodafoneServicesScreen extends MainScreen { private String url = "http://202.140.96.134:8080/Hero/shortcuts_demo.xml"; private static ServiceBook sb = ServiceBook.getSB(); private static ServiceRecord[] records = sb.findRecordsByCid("BrowserConfig"); private HorizontalFieldManager mainHManager = new HorizontalFieldManager(Field.FIELD_VCENTER); private VerticalFieldManager colum1 = new VerticalFieldManager(Field.FIELD_HCENTER); private VerticalFieldManager colum2 = new VerticalFieldManager(Field.FIELD_HCENTER); private VerticalFieldManager colum3 = new VerticalFieldManager(Field.FIELD_HCENTER); private VerticalFieldManager colum4 = new VerticalFieldManager(Field.FIELD_HCENTER); private VerticalFieldManager colum5 = new VerticalFieldManager(Field.FIELD_HCENTER); private Vector col = new Vector(); public SmartoneVodafoneServicesScreen() throws Throwable { super(); LabelField title = new LabelField("Smartone Vodafone Services", DrawStyle.ELLIPSIS | Field.USE_ALL_WIDTH | DrawStyle.HCENTER); setTitle(title); col.addElement(colum1);col.addElement(colum2);col.addElement(colum3);col.addElement(colum4);col.addElement(colum5); Background bg = BackgroundFactory.createSolidBackground(Color.BLACK); getMainManager().setBackground(bg); SmartoneVodafoneServicesScreen screen = this; ConnectXMLThread startMainThread = new ConnectXMLThread(url,col,mainHManager, screen); startMainThread.start(); //startMainThread.wait(30000); } public BrowserSession createWAPBrowserSession() { // If there are browser services found - search for the WAP2 // Service Record String uid = null; int numRecords = records.length; for( int i = 0; i < numRecords; i++ ) { ServiceRecord myRecord = records[i]; if (myRecord.getUid().equals("WAP Browser Smartone")==true){ uid = myRecord.getUid(); } } return Browser.getSession(uid); } public boolean keyChar(char key, int status, int time) { switch (key) { case Characters.ESCAPE: System.exit(0); break; } return true; //return true to indicate that a key was pressed }}ConnectXMLThread.java
import java.util.Vector; import javax.microedition.io.Connector;import javax.microedition.io.StreamConnection; import net.rim.device.api.ui.UiApplication;import net.rim.device.api.ui.container.HorizontalFieldManager;import net.rim.device.api.ui.container.VerticalFieldManager;import net.rim.device.api.xml.parsers.DocumentBuilder;import net.rim.device.api.xml.parsers.DocumentBuilderFactory; import org.w3c.dom.Document;import org.w3c.dom.Node;import org.w3c.dom.NodeList; public class ConnectXMLThread extends Thread { private StreamConnection conn; private Document doc; private Vector vector = new Vector(); private String url; private Vector col; private HorizontalFieldManager mainHManager; private SmartoneVodafoneServicesScreen screen; //public ConnectXMLThread(long startApplication) { public ConnectXMLThread(String url, Vector col, HorizontalFieldManager mainHManager, SmartoneVodafoneServicesScreen screen) { // TODO Auto-generated constructor stub //this.starttime = startApplication; this.url = url; this.col = col; this.mainHManager = mainHManager; this.screen = screen; } public void run() { try { conn = (StreamConnection) Connector.open(url); DocumentBuilderFactory docFac = DocumentBuilderFactory.newInstance(); DocumentBuilder docBui = docFac.newDocumentBuilder(); doc = docBui.parse(conn.openInputStream()); NodeList list = doc.getElementsByTagName("item"); for (int i = 0; i < list.getLength(); i++) { Node nNode = list.item(i); NodeList sList = nNode.getChildNodes(); if (sList.item(1).getFirstChild().getNodeValue().equals("0")) { String[] arr = new String[3]; arr[0] = sList.item(3).getFirstChild().getNodeValue(); arr[1] = sList.item(7).getFirstChild().getNodeValue(); arr[2] = sList.item(11).getFirstChild().getNodeValue(); vector.addElement(arr); } } Vector threadList = new Vector(vector .size()); for (int i = 0; i < vector.size(); i++) { String[] arr = (String[]) vector.elementAt(i); String img = arr[1]; String url = arr[2]; ConnectPNGThread requestThread = new ConnectPNGThread(img, url, i,col,screen); requestThread.start(); threadList.addElement(requestThread); } //System.out.println("Wait for threads to complete"); boolean isComplete = false; while (!isComplete) { // NetworkThread.sleep(500); for (int i = 0; i < threadList.size(); i++) { if (((ConnectPNGThread) threadList.elementAt(i)).isAlive()) { isComplete = false; break; } if (i == threadList.size() - 1) { isComplete = true; } } } //final long endApplication = System.currentTimeMillis(); UiApplication.getUiApplication().invokeLater(new Runnable() { public void run() { for (int num = 0; num < 5; num++) { mainHManager.add((VerticalFieldManager) col.elementAt(num % 5)); } screen.add(mainHManager); //Dialog.alert(Long.toString((endApplication - starttime))); } }); System.out.println("All threads are complete"); } catch (Exception e) { } } }ConnectPNGThread
import java.io.ByteArrayOutputStream;import java.io.DataInputStream;import java.util.Vector; import javax.microedition.io.Connector;import javax.microedition.io.StreamConnection; import net.rim.blackberry.api.browser.BrowserSession;import net.rim.device.api.system.EncodedImage;import net.rim.device.api.system.PNGEncodedImage;import net.rim.device.api.ui.Color;import net.rim.device.api.ui.Field;import net.rim.device.api.ui.Graphics;import net.rim.device.api.ui.component.BitmapField;import net.rim.device.api.ui.component.LabelField;import net.rim.device.api.ui.container.VerticalFieldManager; public class ConnectPNGThread extends Thread { private StreamConnection picon; private int p; private Vector col; private String img; private String url; private SmartoneVodafoneServicesScreen screen; public ConnectPNGThread(String img, String url, int i, Vector col, SmartoneVodafoneServicesScreen screen) { // TODO Auto-generated constructor stub super(); this.img = img; this.url = url; this.p = i%5; this.col = col; this.screen = screen; } public void run() { //public NetworkThread() { try { picon = (StreamConnection) Connector.open(img); DataInputStream inputStream = picon.openDataInputStream(); ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream(); byte[] buffer = new byte[5120]; int len = 0, imageSize = 0; while (-1 != (len = inputStream.read(buffer))) { byteArrayOutputStream.write(buffer); imageSize += len; } picon.close(); byteArrayOutputStream.flush(); byte[] imageData = byteArrayOutputStream.toByteArray(); final EncodedImage pngImage = PNGEncodedImage.createEncodedImage(imageData, 0, imageSize); final BitmapField myBitmapField = new BitmapField(pngImage .getBitmap(), Field.FIELD_VCENTER | Field.FOCUSABLE) { protected boolean invokeAction(int status) { // BrowserSession site = Browser.getDefaultSession(); BrowserSession site = screen.createWAPBrowserSession(); site.displayPage(url); return true; } protected void paint(Graphics g) { g.setBackgroundColor(Color.BLACK); g.drawRoundRect(0, 0, getWidth(), getHeight(), 10, 10); g.setColor(Color.WHITE); super.paint(g); } }; VerticalFieldManager c = (VerticalFieldManager) col.elementAt(p); c.add(new LabelField(" ", LabelField.NON_FOCUSABLE)); c.add(myBitmapField); } catch (Exception e) { //e.printStackTrace(); System.out.println(e.toString()); } } }
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