Develop Reference

Android - Start multiple timers on button press

So I have a button with a onClick method like this:
public void myClickHandler(View v){
}
I have multiple checkboxes on one page, and when that button is pressed it will start a timer on all of the checked boxes. Also, most of the timers have different times. Have any ideas on how I can get this working? Thanks!

i think,you can use one timer,or just one thread.computing and send different broadcasts or the same broadcast with different args,handle and dispatch in the method onReceive;

Identify manual and programatically button click

In my app I have one button which works as "pause" and "Resume". Here user can click this button manually to pause and resume. And somethimes I am performing click programatically using view.performClick() method.
The question is....is it possible to know by which click button clicked ?
Thanks
Edit:
I am using timer in my app and I want to pause and resume timer.

Handle the click in a different method:
private void handleClick(boolean manualClick) {
//your code...
}
public void onClick(View view) {
handleClick(true);
}
and do not use view.performClick() to call it automaically, but call handleClick(false)

You can set the flag true/false when click manually, and use that while performing click operation.

if(button.getText().toString().trim().equalsIgnoreCase("pause")){
// puse your timer here or whatever you would like
}else{
//resume your time here or whatever you would like
}

How to handle android HOME button using libgdx

i`m writing game for android using libgdx.
And have problem that game controls are near android buttons HOME and BACK.
There is easy way to handle BACK button, but i havent found something for HOME button. All i want - when user accidentally presses HOME button - to handle it and popup dialog if user want to leave game but not to minimize it at once.

You can't handle Home button (nor Lock Screen).
Reference: How to catch Home/Lock Screen button

For anyone who might stumble on this, a plausible solution would be to implement the onPause method in your android launcher
#Override
protected void onPause(){
//do whatever you need to on pause
super.onPause();
}

Button stays disabled until second click?

Good Morning,
I have a list of items with a prev. & next button. When the user is at the start of the list the prev button is disabled. Clicking next takes them to the next record and my click handler sets the prev button enabled true. However in the emulator it doesn't show the button enabled. Clicking next moves me to the third record and again the handler sets the prev button enabled but this time it does become enabled in the emulator. I'm grasping at straw here but do I need to invalidate and redraw or something?? I don't understand why such an elementary task is not working.
In XML:
<Button
android:id="#+id/btn_PrevLift"
...
android:enabled="false"
android:onClick="btn_PrevLiftClick" />
In the handler code:
private void UpdateNavButtonStatus(int z)
{
...
btn_Next.setEnabled(true);
btn_Prev.setEnabled(true);
....
}
No just to show you how little I know about what I'm doing how come when I look at the variable values in Eclipse debug I can't see the enabled property in any state???
More Info
Very odd to me at least. If I move from using XML defined event handlers to programatically defined as below it works great!!!???
btn_Nxt.setOnClickListener(new OnClickListener()
{
public void onClick(View v)
{
//Call helper methods etc...
}
});
I think I have it but not sure exactly why
So when I was trying to get a handle on my Button objects I was using the View.findViewById(etc). When I changed from XML to the programatically declared event handler I used ViewGroup.findViewById. Reverting back to xml if I use the ViewGroup I get a "different" handle that seems to work...????

Ok,so what you can do is declare a variable count and on the click f button next increment the value of count..and on the click of Back button decrement the value of count and give the condition that while count<0 the task of the back button is done else nothing

I have identified the problem and of course the problem is me. I was enabling the button and then the ListView was updating to the next record. Of course my enabled button was one behind so it appeared that when I clicked a second time the button suddenly enable but that is not the case. When I clicked a second time we moved to record three and showed button for record two which was enabled.
See my buttons were part of my ListView and new buttons were being drawn for each record. OOHHHH it makes so much sense now how everything was behaving.
Anyway I moved the buttons off the ListView layout so they remain constant as the user navigates through the records.

Using an Android Long-Button press to increment/decrement counter

I want to be able to press a button on my program and hold it down (without releasing) to increment a variable. Problem I am having right now is when I conduct the long button press it only runs once, until I release and press again.
First I want to find out if there is a way to do this without having to use the OnTouchListener, and just using the OnLongClick. Is there a way to check the value of the button? For example.. buttondown=true; Conduct a whileloop to increment until the button is released.
Second, I don't want the updates to be delayed, because the incremented value is being drawn as the user holds down the button.
Basically I am doing something like this:
btn_resume.setOnLongClickListener(new OnLongClickListener() {
public boolean onLongClick(View v) {
..code..
return true;
}
});

OnLongClick will only be called once per press. It isn't going to work for your purpose.

If I understood your question correct this can be achieved using a OnLongClickListener.

Check http://developer.android.com/reference/android/view/View.html#setOnTouchListener(android.view.View.OnTouchListener)
OnTouchListener provides a more granular handling of touch events, e.g. KeyDown, KeyUp

I think you can use OnLongClickListener for increment/decrement. But once the long press is done for the button, the longpress has to be canceled or reset for the next long press of the same button.