How to send data from one Vector to another Activity?

Question

I’m still a beginner, and I have the following question: I’m inserting text from a EditText in a array, and I want to receive it in another. I am doing the following:

String[] pedidos = new String[11];

And then, by clicking on the "save" button, this happens:

    public void onClick(View v) {
    if(v.getId() == R.id.btnFinalizar){
        pedidos[0] = edtPedido.getText().toString(); //insiro dados do EditText em uma array.
        Intent intent = new Intent(mesa1.this, inicio.class);
        intent.putExtra("pedidos1", pedidos[0]);
        startActivity(intent);
    }
}

And on the screen where I want to receive the data, I do this:

        String[] pedidosFeitos = new String[11];

    Intent intent = getIntent();
    pedidosFeitos[0] = String.valueOf(intent.getStringArrayExtra("pedidos1"));

Note: I did not understand the: String.valueOf(intent.getStringArrayExtra

I researched to the maximum, and ended up trying what Android Studio suggested.

Answer 1

In doing so intent.putExtra("pedidos1", pedidos[0]);, you are not passing an array(vector in your case), but a string after all, pedidos is a string array and pedidos[0] is the string that is at position 0 of the vector.

Moreover, when declaring intent.getStringArrayExtra("pedidos1") you are trying to pick up a string as if it were an array, which is not the case.

Change your code to:

if(v.getId() == R.id.btnFinalizar){
        pedidos[0] = edtPedido.getText().toString(); //insiro dados do EditText em uma array.
        Intent intent = new Intent(mesa1.this, inicio.class);
        intent.putExtra("pedidos1", pedidos);
        startActivity(intent);
    }

In the other Activity:

Intent intent = getIntent();
 String[] pedidosFeitos = intent.getStringArrayExtra("pedidos1"));

Now, if your goal is to pass only one request(Input from the requested array), as your code already stands, just change the getStringArrayExtra to just getStringExtra.

More information can be found on android documentation and I also recommend that you take a look at Getting Started android, is in English, but helps a lot for those who are starting.

P.S.: String.valueOf() returns a string representation of the argument passed, however, in this your code is not very necessary.

Reference:

https://stackoverflow.com/a/8892968/5524514

http://developer.android.com/intl/pt-br/guide/index.html