Android: Using <include/> to clone layouts, while using the same onClick button functions

Question

I want to use an "actionbar", like tapatalk has. Ofcourse I don't want to copy all button functions over and over again.

Is there a quick solution to do this?

Also, if I set the background drawable, I want it to be the same in the different layouts.

Answer 1

I can see two approaches:

• As I said in the comment, make all your activities extend a base activity of yours that implements the onClick. Mayebe I don't like this approach because it forces you to extend your base activity and if you want a listactivity in the future you may have some problems.

or (which I think it's much better)

• simply have an helper class that accepts the activity as a constructor argument which will set the onclicks for you. You'll have to remember to instantiate that class (or call a static method if you are worried about creating objects), and that will do the job for you.

  public class OnClickHelper implements View.OnClickListener {
     Activity mActivity;
     public OnClickHelper(Activity a){
         mActivity = a;
     }   
  
  
     public setClickListeners(){
         Button b = (Button) mActivity.findViewById(R.id.Button1);
         b.setOnClickListener(this);
     }
  
     @Override
     public void onClick(View view) {
        switch(view.getId()){
           case R.id.button1:
  
           break;
        }
     }
  

  }

Regarding the background, go for styles. Have all the activities you want to have the same background using the same style (you can define it in the manifest).