我怎么知道点击了哪个“TextView”

Question

I was creating a dynamic Text View and I need to know which one of those Text views was clicked by the user i read that i need to use getTag() method but it keeps return null when i try it this is my activity code in java:

        for(int i=0;i<size;i++){
        TextView temp = new TextView(this);
        temp.setId(i);
        temp.setId(i);
        String s = "";
        temp.setText(s);
        temp.setTextColor(Color.RED);
        mylieniarlayout.addView(temp);
        tv[i] = temp;
    }
    final TextView answertv = findViewById(R.id.answertv);
    mylieniarlayout.setOnClickListener(new View.OnClickListener() {
        @SuppressLint("SetTextI18n")
        @Override
        public void onClick(View v) {
            Toast.makeText(getBaseContext(),"ID: "+ v.getTag(), Toast.LENGTH_SHORT).show();
            answertv.setText("Clicked ID: " + v.getTag());
        }
    });

Answer 1

You can try if else condition

Like:

if(v.getTag() == 0){
  //Show position 0 here
} else {
  //Other position
}

Hope you got your answer

Answer 2

Firstly, setTag() and getTag() methods on view are not used for identifying the view. We use getId() for identifying the view. Please read document here, getTag on android developers

Secondly, your onClickListner is on layout which won't give you the selected id of textView. In your code you are setting an ID for the text view and trying to fetch a tag which is a mistake.

1. onClickListener should be on the textview of which you want a tag.
2. While creating a textView set the tag and then you will get the tag for that textview.