how to make hint disappear when edittext is touched?

Question

In my application in android are many EditText fields. And I ran into a problem with hint. It is not disappearing when EditText is focused, but it disappears when I start to

Answer 1

findViewById(R.id.mainLayout).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                hideKeyboard();
                editText.clearFocus();
                if (TextUtils.isEmpty(editText.getText().toString())) {
                    editText.setHint("your hint");
                }
            }
        });

        editText.setOnTouchListener(new View.OnTouchListener() {
            @Override
            public boolean onTouch(View v, MotionEvent event) {
                editText.setHint("");
                return false;
            }
        });


        editText.setOnFocusChangeListener(new View.OnFocusChangeListener() {
            @Override
            public void onFocusChange(View v, boolean hasFocus) {
                if (hasFocus)
                    editText.setHint("");
                else
                    editText.setHint("your hint");
            }
        });