Timer timer = new Timer();
timer.schedule(new TimerTask()
{
public void run()
{
InputMethodManager inputManager =(InputMethodManager)editText.getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
inputManager.showSoftInput(editText, 0);
}
}, 998);
this is java
**
I want to delay the keyboard pop-up**
public class MyActivity: IRunnable{
Android.OS.Handler _handler;
protected void MethodXY(){
_handler = new Android.OS.Handler();
_handler.PostDelayed(this, 998);
}
public void Run()
{
_handler.RemoveCallbacks(this);
InputMethodManager inputManager =(InputMethodManager)editText.getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
inputManager.showSoftInput(editText, 0);
}
}
Alternative: (e.g. you are using more than one Handler in your activity)
public class MyActivity: IRunnable{
protected void MethodXY(){
Android.OS.Handler handler = new Android.OS.Handler();
handler.PostDelayed(new DelayedKeyboardRunnable(handler, editText), 998);
}
private class DelayedKeyboardRunnable: Java.Lang.Object, IRunnable
{
EditText _et;
Android.OS.Handler _handler;
public DelayedKeyboardRunnable(Android.OS.Handler handler, EditText et)
{
_handler = handler;
_et = et;
}
public void Run()
{
_handler.RemoveCallbacks(this);
InputMethodManager inputManager = (InputMethodManager)_et.getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
inputManager.showSoftInput(_et, 0);
}
}
}
Related
I am making a quiz application with question and answer.
I want to make an clock count down ( Minute + Second ) and display it on screen.
But I can not how to do that.
Can anyone help me please ?
this is one solution to print time mm:ss format (Minutes:seconds)
public class StartUp extends UiApplication{
public static void main(String[] args) {
StartUp start=new StartUp();
start.enterEventDispatcher();
}
public StartUp() {
pushScreen(new Timerscreen());
}
}
class Timerscreen extends MainScreen
{
LabelField time;
long mille=0;
Timer timer=null;TimerTask task=null;
public Timerscreen() {
mille=1000*60*1;
time=new LabelField();
add(time);
timer=new Timer();
task=new TimerTask() {
public void run() {
synchronized (UiApplication.getEventLock()) {
if(mille!=0){
SimpleDateFormat date=new SimpleDateFormat("mm:ss") ;
System.out.println("================="+date.formatLocal(mille)+"====================="+Thread.activeCount());
time.setText(date.formatLocal(mille));
mille=mille-1000;
}else{
time.setText("00:00");
mille=1000*60*1;
timer.cancel();
UiApplication.getUiApplication().invokeLater(new Runnable() {
public void run() {
Dialog.inform("Time expaired");
}
});
}
}
}
};
timer.schedule(task,0, 1000);
}
}
Same like above but some change:
First set:
int secs=120; // how many seconds you want;
public void callTheTimer()
{
label=new LabelField("\t");
add(label);
timer=new Timer();
timerTask=new TimerTask()
{
public void run()
{
synchronized (UiApplication.getEventLock())
{
if(secs!=0)
{
label.setText(""+(secs--)+" secs");
}
else
{
timer.cancel();
UiApplication.getUiApplication().invokeLater(new Runnable()
{
public void run()
{
label.setText("");
Dialog.alert("Times Up");
secs=120;
}
});
}
}
}
};
timer.schedule(timerTask, 0, 1000);
}
This is enough;
I am developing a blackberry app. I want to open an screen from the home screen when user will press one button and hold it for 2 seconds.
Any way?
Thanks.
Here is the code for your question. I have make use of this BlackBerry LongClickListener implementation link which contains good explanation too.
public class HoldButtonScreen extends MainScreen implements FieldChangeListener {
ButtonField _btnHold;
Timer _timer;
public HoldButtonScreen() {
_btnHold = new ButtonField("Hold 2 sec to get popup")
{
protected boolean navigationClick(int status, int time) {
final Field _btnHold= this;
_timer = new Timer();
System.out.println("hi there");
UiApplication.getUiApplication().invokeLater(new Runnable() {
public void run() {
try{
_timer.schedule(new TimerTask() {
public void run() {
fieldChanged(_btnHold, 0);
}}, 2000);
}catch(Exception e){
e.printStackTrace();
}
}
});
return true;
}
protected boolean navigationUnclick(int status, int time) {
System.out.println("hi unclick");
add(new LabelField("You have't hold button for 2 second."));
_timer.cancel();
return true;
}
};
_btnHold.setChangeListener(this);
add(_btnHold);
}
public void fieldChanged(Field field, int context) {
UiApplication.getUiApplication().invokeLater(new Runnable() {
public void run() {
PopupScreen _popUpScreen = new PopupScreen(new VerticalFieldManager()){
public boolean onClose() {
close();
return true;
}
};
_popUpScreen.add(new LabelField("Hello , i am pop up after 2 second."));
UiApplication.getUiApplication().pushScreen(_popUpScreen);
}
});
}
}
Try this this will run successfully.
Just change the Screen in PushScreen.
private Thread splashTread;
protected int _splashTime = 200;
boolean countinue = true;
splashTread = new Thread() {
public void run() {
while (countinue == true) {
try {
synchronized (this) {
wait(_splashTime);
}
} catch (InterruptedException e) {
} finally {
synchronized (UiApplication.getUiApplication().getAppEventLock()) {
UiApplication.getUiApplication().pushScreen(new Login());
SplashScreen.this.close();
}
countinue = false;
}
}
}
};
splashTread.start();
I'm trying to implement simple user interaction with field2.BrowserField: when button is clicked BrowserField loads
another page, but I'm getting IllegalStateException.
here's my code:
public class BrowserScreen extends MainScreen {
private BrowserField browser;
public BrowserScreen() {
super();
setTitle("Browser State example");
ButtonField btn1 = new ButtonField("test1");
btn1.setChangeListener(new FieldChangeListener() {
public void fieldChanged(Field field, int context) {
test1();
}
});
add(btn1);
ButtonField btn2 = new ButtonField("test2");
btn2.setChangeListener(new FieldChangeListener() {
public void fieldChanged(Field field, int context) {
test2();
}
});
add(btn2);
browser = new BrowserField();
add(browser);
browser.requestContent("http://stackoverflow.com/" + ";deviceside=true;");
}
private void test1() {
UiApplication.getUiApplication().invokeLater(new Runnable() {
public void run() {
browser.requestContent("http://www.blackberry.com/developers" + ";deviceside=true");
}
});
}
private void test2() {
synchronized (Application.getEventLock())
{
browser.requestContent("http://www.blackberry.com/developers" + ";deviceside=true");
}
}
}
Try this one:
public class BrowserScreen extends MainScreen {
private BrowserField browser;
public BrowserScreen() {
super();
setTitle("Browser State example");
ButtonField btn1 = new ButtonField("test1");
btn1.setChangeListener(new FieldChangeListener() {
public void fieldChanged(Field field, int context) {
//test1();
test1("http://www.blackberry.com/developers");
}
});
add(btn1);
ButtonField btn2 = new ButtonField("test2");
btn2.setChangeListener(new FieldChangeListener() {
public void fieldChanged(Field field, int context) {
//test2();
test1("http://www.blackberry.com/developers");
}
});
add(btn2);
browser = new BrowserField();
add(browser);
//browser.requestContent("http://stackoverflow.com/" + ";deviceside=true;");
test1("http://stackoverflow.com/");
}
private void test1(final String url) {
UiApplication.getUiApplication().invokeLater(new Runnable() {
public void run() {
//browser.requestContent("http://www.blackberry.com/developers" + ";deviceside=true");
browser.requestContent(url + ";deviceside=true");
}
});
}
// private void test2() {
// synchronized (Application.getEventLock())
// {
// browser.requestContent("http://www.blackberry.com/developers" + ";deviceside=true");
// }
// }
}
Wow, adding browser.setFocus(); do the trick
public class BrowserScreen extends MainScreen {
private BrowserField browser;
public BrowserScreen() {
super();
setTitle("Browser State example");
ButtonField btn1 = new ButtonField("test1", ButtonField.CONSUME_CLICK);
btn1.setChangeListener(new FieldChangeListener() {
public void fieldChanged(Field field, int context) {
test1();
}
});
add(btn1);
browser = new BrowserField();
add(browser);
browser.requestContent("http://stackoverflow.com/" + ";deviceside=true;");
}
private void test1() {
UiApplication.getUiApplication().invokeLater(new Runnable() {
public void run() {
browser.setFocus();
browser.requestContent("http://www.blackberry.com/developers" + ";deviceside=true");
}
});
}
}
i am developing an application that use some images. We require some text print on image but that is not a fixed mean when change the variable value automatically change the text. Simply we say that we print a variable on image?
try this
public class Test extends UiApplication {
public static void main(String[] arg) {
Test app = new Test();
app.enterEventDispatcher();
}
public Test() {
MyScreen screen = new MyScreen();
pushScreen(screen);
}
}
class MyScreen extends MainScreen {
LabelField label;
public MyScreen() {
label = new LabelField() {
protected void paint(Graphics g) {
Bitmap bitmap = Bitmap.getBitmapResource("bgimage.jpg");
g.drawBitmap(0, 0, getWidth(), getHeight(), bitmap, 0, 0);
super.paint(g);
}
};
ButtonField button = new ButtonField("update") {
protected void fieldChangeNotify(int context) {
update();
super.fieldChangeNotify(context);
}
};
add(label);
add(button);
}
public void setMessage(String message) {
synchronized (UiApplication.getEventLock()) {
label.setText(message);
}
}
private void update() {
LocationHandler handler = new LocationHandler(this);
handler.start();
}
}
class LocationHandler extends Thread {
private MyScreen screen;
public LocationHandler(MyScreen screen) {
this.screen = screen;
}
public void run() {
Criteria criteria = new Criteria();
criteria.setVerticalAccuracy(50);
criteria.setHorizontalAccuracy(50);
criteria.setCostAllowed(true);
criteria.setPreferredPowerConsumption(Criteria.POWER_USAGE_HIGH);
try {
LocationProvider provider = LocationProvider.getInstance(criteria);
Location location = provider.getLocation(-1);
String speed = location.getSpeed() + "m/s";
screen.setMessage(speed);
} catch (LocationException e) {
e.printStackTrace();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
i have invoked blackberry calender from my application
can anyone tell me how to fetch :
date
duration
notes
from the selected date
my code :
MenuItem importCalender = new MenuItem("Import from Calender",100,11)
{
public void run()
{
UiApplication.getUiApplication().invokeAndWait(new Runnable()
{
public void run()
{
try
{
EventList list = (EventList)PIM.getInstance().openPIMList(PIM.EVENT_LIST, PIM.READ_WRITE);
Enumeration events = list.items();
BlackBerryEvent e = (BlackBerryEvent) events.nextElement();
Invoke.invokeApplication(Invoke.APP_TYPE_CALENDAR, new CalendarArguments( CalendarArguments.ARG_VIEW_DEFAULT,e) );
}
catch (PIMException e)
{
//e.printStackTrace();
}
}
});
}
};
protected void makeMenu(Menu menu, int instance)
{
menu.add(importCalender);
}
You should register custom menu item for calendar application.
See How To - Add a custom menu item to an existing BlackBerry application
UPDATE
alt text http://img517.imageshack.us/img517/2789/caledar3.jpg
class Scr extends MainScreen {
VerticalFieldManager mManager;
UiApplication mApp;
public Scr() {
mApp = UiApplication.getUiApplication();
mManager = (VerticalFieldManager) this.getMainManager();
MyMenuItem myMenuitem = new MyMenuItem(0);
ApplicationMenuItemRepository.getInstance().addMenuItem(
ApplicationMenuItemRepository.MENUITEM_CALENDAR, myMenuitem);
}
class MyMenuItem extends ApplicationMenuItem {
MyMenuItem(int order) {
super(order);
}
public Object run(Object context) {
if (context instanceof Event) {
Event event = (Event) context;
final String text = "start: "
+ (new Date(event.getDate(Event.START, 0))).toString()
+ "\nend: "
+ (new Date(event.getDate(Event.END, 0))).toString()
+ "\nnote: " + event.getString(Event.NOTE, 0);
String message = "Import event\n" + text;
if (Dialog.YES == Dialog.ask(Dialog.D_YES_NO, message)) {
mApp.invokeLater(new Runnable() {
public void run() {
mApp.requestForeground();
mManager.add(new LabelField(text));
}
});
}
}
return context;
}
public String toString() {
return "Import Event";
}
}
MenuItem importCalender = new MenuItem("Import from Calender", 100, 11) {
public void run() {
UiApplication.getUiApplication().invokeAndWait(new Runnable() {
public void run() {
Invoke.invokeApplication(Invoke.APP_TYPE_CALENDAR,
new CalendarArguments(
CalendarArguments.ARG_VIEW_DEFAULT));
}
});
}
};
protected void makeMenu(Menu menu, int instance) {
menu.add(importCalender);
}
}