How to compare dates?

Question

I created an NN/NN/NNNN mask in my editText to capture due date, without a calendar, all done in edt. Then I used Simpledateformat to capture the current system date. I made a comparison with the edt mask and the varialvel (current date) of the simpledateformat. But I think the comparison is not working. The created condition does not appear. I type the current date, but there is no "test" (condition I created as a test).

Field mask

 final EditText edtDataSelecionada = (EditText) findViewById(R.id.edtDataSelecionada);

    //Criando a mascara de campo
    SimpleMaskFormatter smf = new SimpleMaskFormatter("NN/NN/NNNN");
    MaskTextWatcher mtw = new MaskTextWatcher(edtDataSelecionada, smf);
    edtDataSelecionada.addTextChangedListener(mtw);
    //fim da mascará

Simpledateformat and condition

item.setDataselecionada(String.valueOf(edtDataSelecionada.getText().toString().trim()));

                SimpleDateFormat formataData = new SimpleDateFormat("dd/MM/yyyy");
                Date data = new Date();
                String dataFormatada = formataData.format(data);


                if (edtDataSelecionada.getText().toString() == dataFormatada){
                    item.setNotificacao("Teste");
                }

Another thing, I’d like to make comparisons with the separate dd of the MM.

Answer 1

I’m not sure I quite understood your question, but basically to compare a date you’d have to turn edtDataSelecionada for an object Date and then use the function compareTo.

Example:

SimpleDateFormat formataData = new SimpleDateFormat("dd/MM/yyyy");
Date data = new Date();
String dataFormatada = formataData.format(data);

Date d1 = formataData.parse(edtDataSelecionada.getText().toString());
Date d2 = formataData.parse(dataFormatada);


if (d1.compareTo(d2) == 0){
    item.setNotificacao("Teste");
}

Or else with equals:

if (d1.equals(d2)){
    item.setNotificacao("Teste");
}

Take a look here