Develop Reference

How to use android:longclickable for implementing longclickable event for cardview?

I have a card view and I want to launch two separate events based on the fact that the view is clicked or longclicked. For click we have onclick method and android:onclick attribute. How to do this for longclick?

Did you try this:
mView.setOnLongClickListener(new View.OnLongClickListener() {
#Override
public boolean onLongClick(View v) {
return true;
}
});
??? It should work.

How other buttons disable when I press the button?

I have a few imageview which have onclicklistener. If I press one (not release), I can press click others or I can click them same time. I do not want it. Everytime when I press one of them others should be disable to click.
imageview1.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
getMethod();
}
});
I guess, I tried setClickable(false); but it did not work properly, if I clicked one button after that it worked.

Try using onTouchListener instead of onClickListener and calling setEnabled(false); on the other views there. Here's a fairly basic example:
OnTouchListener onTouchListener = new OnTouchListener() {
#Override
public boolean onTouch(View view, MotionEvent event) {
if (event.getAction() == MotionEvent.ACTION_DOWN) {
imageView1.setEnabled(false);
imageView2.setEnabled(false);
}
return true;
}
};
And then apply it to the image views with:
imageView1.setOnTouchListener(onTouchListener);
That should work. One thing is, though, that while you'll only be able to push one button no matter what, you also won't be able to push anything after you let go - but, you can fix that by adding some logic to see if the view actually got clicked or if the user touched it, changed their mind and slid away. The (event.getAction() == MotionEvent.ACTION_DOWN) check will be true even if the user is just scrolling.

//button on which press u want to disable others
button1.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
button2.setEnabled(false); //button which u want to disable
button3.setEnabled(false); //button which u want to disable
}
});
//update fixed a spelling error

try to disable the button and
button.setEnable(false);
enable the button
button1.setEnable(true);

setOnClickListener and setOnLongClickListener call on single button issue

I need your help if any one can be, it will be great thing for my solution.
I don't know is it possible or not, but I want to try to fix this out any how..
Actually I want to implement two method on single button click event, its simple click and long click, here my code ::
homebutton = (ImageButton) findViewById(R.id.home_icon);
homebutton.setOnClickListener(new OnClickListener() {
public void onClick(View arg0) {
Intent intent = new Intent(context, MainActivity.class);
startActivity(intent);
}
});
homebutton.setOnLongClickListener(new OnLongClickListener() {
public boolean onLongClick(View arg0) {
Toast.makeText(getApplicationContext(), "Long Clicked " , Toast.LENGTH_SHORT).show();
return false;
}
});
So, here i am getting something wrong, even single click is working perfectly, and long click is also working, but problem is that after long click event its also start MainActivity as defined in above code of onClick method..
That should not be done, return false is also there, still not working as i want..
So, anybody please help me to get it resolve..
Thanks in Advance..

I believe you need to return TRUE in your onLongClick method - telling the framework that the touch event is consumed and no further event handling is required.
homebutton.setOnLongClickListener(new OnLongClickListener() {
public boolean onLongClick(View arg0) {
Toast.makeText(getApplicationContext(), "Long Clicked " ,
Toast.LENGTH_SHORT).show();
return true; // <- set to true
}
});

Android: long click on a button -> perform actions

I want to use the same button to perform 2 different methods.
One method when user single clicks it and a second method (different) when the user LONG clicks it.
I use this for the single short click (which works great):
Button downSelected = (Button) findViewById(R.id.downSelected);
downSelected.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
method();
}
}
});
I've tried to add a longClickListener but it didn't work.
Appreciate any ideas on how to solve this.
Thanks!

I've done it before, I just used:
down.setOnLongClickListener(new OnLongClickListener() {
#Override
public boolean onLongClick(View v) {
// TODO Auto-generated method stub
return true;
}
});
Per documentation:
public void setOnLongClickListener
(View.OnLongClickListener l)
Since: API Level 1 Register a callback
to be invoked when this view is
clicked and held. If this view is not
long clickable, it becomes long
clickable.
Notice that it requires to return a boolean, this should work.

To get both functions working for a clickable image that will respond to both short and long clicks, I tried the following that seems to work perfectly:
image = (ImageView) findViewById(R.id.imageViewCompass);
image.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
shortclick();
}
});
image.setOnLongClickListener(new View.OnLongClickListener() {
public boolean onLongClick(View v) {
longclick();
return true;
}
});
//Then the functions that are called:
public void shortclick()
{
Toast.makeText(this, "Why did you do that? That hurts!!!", Toast.LENGTH_LONG).show();
}
public void longclick()
{
Toast.makeText(this, "Why did you do that? That REALLY hurts!!!", Toast.LENGTH_LONG).show();
}
It seems that the easy way of declaring the item in XML as clickable and then defining a function to call on the click only applies to short clicks - you must have a listener to differentiate between short and long clicks.

Initially when i implemented a longClick and a click to perform two separate events the problem i face was that when i had a longclick , the application also performed the action to be performed for a simple click . The solution i realized was to change the return type of the longClick to true which is normally false by default . Change it and it works perfectly .

Change return false; to return true; in longClickListener
You long click the button, if it returns true then it does the work. If it returns false then it does it's work and also calls the short click and then the onClick also works.

Try using an ontouch listener instead of a clicklistener.
http://developer.android.com/reference/android/view/View.OnTouchListener.html

The simplest and updated method is using a long click listener like
someView.setOnLongClickListener {
//do your work
true
}

Android: What's the difference between a boolean for a click and button.isPressed()?

There are a lot of options on how to define a click/tap on the touchscreen. One of them for example is setting a boolean.
Example for boolean:
boolean buttonClicked = true;
button.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
if (buttonClicked) {
//do that and this
}
}
});
And there's a isPressed() method:
button.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
if (button.isPressed()) {
//do that and this
}
}
});
What exactly is the difference between them? And when and why do I use boolean and the method isPressed()?

Because you are referring to a button in both of your examples, I assume that you are referring to the user tapping on a button, not just a random touch on the screen.
That being said, both of the examples you provided are not good.
In your first example, the boolean is useless because it is always true, so //do that and this will always be reached.
In your second example, your if statement is useless, because the onClick method by its nature is only reached when the button is tapped.
A good way to listen for a button press is using a click listener like this:
Button button = (Button) findViewById(R.id.buttonId);
button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// Code placed here will run every time the button is tapped
}
});
...where R.id.buttonId is the ID of your button in the layout.

If you need to define click event for a View you can use onClickListener, onTouchListener.
For more information check for Android official Documentation.
onTouchListener
onTouchListener
When considering your first code snippet, You can use boolean to perform another operation on button click event. as example something like this ,
boolean buttonClicked = false;
button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
//true after button clicked
buttonClicked = true;
}
});
//if buttonClicked equals true
if (buttonClicked){
//perform operation only after button clicked
}
when considering your second code snippet, no need of button.isPressed() inside
button's onClick() callback. Because what you want to do by checking button.isPressed() is done without it inside button's onClick() callback.
Keep in mind these things.
isPressed() is a public method of View Class
Button is a subclass of View Class
isPressed() is a public method of Button Class as well.
About isPressed() from Android official documentation.
Indicates whether the view is currently in pressed state. Unless
setPressed(boolean) is explicitly called, only clickable views can
enter the pressed state.
Returns true if the view is currently pressed, false otherwise.