Question

My code is:

Button button1=(Button)findViewById(R.id.button2);

OnClickListener onclick1 = new OnClickListener() {
        @Override
        public void onClick(View v) {
            et.setText("");
        }
    };
    button1.setOnClickListener(onclick1);

Answer 1

button2.setOnClickListener(new View.OnClickListener() {
    public void onClick(View v) {
        spinner.setSelection(0); //if the field is spinner
        editText.setText("");  //if the field is EditText
    }
});