EditText listening focus

 numEdt.setOnFocusChangeListener(new android.view.View.OnFocusChangeListener() {
    
            @Override
            public void onFocusChange(View v, boolean hasFocus) {
    
                Log.e("Edit", " Focus state ：" + hasFocus);
                if (hasFocus) {
    
                    // Get focus 
                    numDeleteIv.setVisibility(View.VISIBLE);
                } else {
    
                    // Lose focus 
                    // Handle our actual computing needs 
                    numDeleteIv.setVisibility(View.GONE);
                }
            }
        });