在一个按钮上实现多个单击侦听器

Question

I am working on an application that requires me to implement more than one click listener on a button. I am stuck. After some searching, I only came across a few hacks that can make this possible.

However in this case, some are not applicable since in my application, the logic is that if the button is clicked and the condition is met, then the second listener is called firing off another event.

This seems tricky. Does anyone have any ideas?

Thanks.

Answer 1

无需创建另一个侦听器，只需根据您的唯一侦听器的条件调用不同的函数即可。

Answer 2

you can meet your requirement using this:

set a global variable say int condition_number=0;

then,

mButton.setOnClickListener(new OnClickListener)
{    
     performThis(condition_number);
}

perforThis(int number)
{
   switch(number) 
   {
       case 1:
              //do some stuff for condition 1
              //set condition_number accordingly,relatively to what you want to perform next
              performThis(codition_number);
              break;

       case 2:
              //do some stuff for condition 2
              //set condition_number accordingly,relatively to what you want to perform next
              performThis(codition_number);
              break;

       case 3:
              //do some stuff for condition 3
              //set condition_number accordingly,relatively to what you want to perform next
              performThis(codition_number);
              break;

       default:
               //do something
               break;
   }
}

This way,you would be able to call different code snippets for different condition and repeatedly call them as you require without making conflict.

You can set a case to get out of the execution of this method by just putting break there.

Answer 3

在此线程上尝试检查的答案，也许这就是您要查找的内容- 在一个类中保留多个OnClickListener

Answer 4

As pointed out by shadow, you can do something like that:

your XML layout:

<Button
     android:layout_height="wrap_content"
     android:layout_width="wrap_content"
     android:text="@string/doStuff"
     android:onClick="doStuff" />

in your activity:

function void doStuff(View target) {
   listener1(target);
   listener2(target);
   ...
}

function void listener1(View target) {
   ...
}

function void listener2(View target) {
   ...
}

And then implement your multiple listeners in listener1, listener2, etc...