Question

Now,my EditText only can input number.But I want to ban inputing zero when the zero is the first number. How can I do?

Answer 1

This should help you:

        yourTextEdit.addTextChangedListener(new TextWatcher(){
        public void onTextChanged(CharSequence s, int start, int before, int count)
        {
            if (yourTextEdit.getText().matches("^0") )
            {
                // Not allowed
                yourTextEdit.setText("");
            }
        }
        public void beforeTextChanged(CharSequence s, int start, int count, int after){}
        public void afterTextChanged(Editable s){}
    });