Android : Androi onClick method blocked ?

piece of code:

textView.setOnClickListener(new OnClickListener() {

@Override
public void onClick(View v) {
        //show a dialog
          }
    }

View Hierarchy: Activity / Fragment / Gridview / textView in Item

operation: when i clicked the textView,app doing nothing, then ,i clicked other position of onScreen, the Onclick() method was calling and show the dialog,i don't understand . why?

this bug is occasional.

i am sorry, my english is very poor.

thanks in advance.