getOnClickListener() in Android views

Question

I need a getOnClickListener() for Views in Android. This way I can assign a temporary OnClickListener to my Views. I want to use it like this:

private View.OnClickListener oldListener;  public void assignTempListener(View view) {     oldListener = view.getOnClickListener(); // doesn't exist      view.setOnClickListener(new View.OnClickListener() {          @Override         public void onClick(View v) {             // some code              v.setOnClickListener(oldListener);         }     }); } 

The problem is that this function doen't exist. I also can't inherit from View to create this method, because all kind of Views can be passed to assignTempListener. Is there another way to use this?

Edit: made a small mistake in my code.

Answer 1

You can do this with...REFLECTION. *drum roll*

This route is fraught with peril.

I don't recommend it, as the internal structure of the class can change at any time, but here's how you can do it currently up to Android 4.2.2 if it's truly unavoidable:

/**  * Returns the current View.OnClickListener for the given View  * @param view the View whose click listener to retrieve  * @return the View.OnClickListener attached to the view; null if it could not be retrieved  */ public View.OnClickListener getOnClickListener(View view) {     if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) {         return getOnClickListenerV14(view);     } else {         return getOnClickListenerV(view);     } }  //Used for APIs lower than ICS (API 14) private View.OnClickListener getOnClickListenerV(View view) {     View.OnClickListener retrievedListener = null;     String viewStr = "android.view.View";     Field field;      try {         field = Class.forName(viewStr).getDeclaredField("mOnClickListener");         retrievedListener = (View.OnClickListener) field.get(view);     } catch (NoSuchFieldException ex) {         Log.e("Reflection", "No Such Field.");     } catch (IllegalAccessException ex) {         Log.e("Reflection", "Illegal Access.");     } catch (ClassNotFoundException ex) {         Log.e("Reflection", "Class Not Found.");     }      return retrievedListener; }  //Used for new ListenerInfo class structure used beginning with API 14 (ICS) private View.OnClickListener getOnClickListenerV14(View view) {     View.OnClickListener retrievedListener = null;     String viewStr = "android.view.View";     String lInfoStr = "android.view.View$ListenerInfo";      try {         Field listenerField = Class.forName(viewStr).getDeclaredField("mListenerInfo");         Object listenerInfo = null;          if (listenerField != null) {             listenerField.setAccessible(true);             listenerInfo = listenerField.get(view);         }          Field clickListenerField = Class.forName(lInfoStr).getDeclaredField("mOnClickListener");          if (clickListenerField != null && listenerInfo != null) {             retrievedListener = (View.OnClickListener) clickListenerField.get(listenerInfo);         }     } catch (NoSuchFieldException ex) {         Log.e("Reflection", "No Such Field.");     } catch (IllegalAccessException ex) {         Log.e("Reflection", "Illegal Access.");     } catch (ClassNotFoundException ex) {         Log.e("Reflection", "Class Not Found.");     }      return retrievedListener; }