IF condition is true but does not execute related code

Question

I have my program that displays a message and in that same message the user must enter a code. I’m trying to validate whether he typed something or not, so I use the code:

AlertDialog.Builder alert = new AlertDialog.Builder(context);
    alert.setTitle("Código final"); //Set Alert dialog title here
    alert.setMessage("Insira o código fornecido pela Nobre de la Torre:"); //Message here

    // Set an EditText view to get user input 
    final EditText input = new EditText(context);
    alert.setView(input);

    alert.setPositiveButton("OK", new DialogInterface.OnClickListener() {
    public void onClick(DialogInterface dialog, int whichButton) {
     //Ações do botão da mensagem
     String srt = String.valueOf(input.getEditableText());
     if(srt!=""){ //ESSE É O IF QUE ESTÁ COM ERRO
     Toast.makeText(context,srt,Toast.LENGTH_LONG).show();  
     }
     else
     {
     Toast.makeText(context,"Campo vazio!",Toast.LENGTH_LONG).show();  
     }  
      String hexNumber = srt;
      int decimal = Integer.parseInt(hexNumber, 16);
      System.out.println("Hex value is " + decimal); 
                 [COntinua...]

Even with the variable String srt being "" he sees as different from "" and execute the code below it

String srt = String.valueOf(input.getEditableText());
if(srt!=""){ 
    Toast.makeText(context,srt,Toast.LENGTH_LONG).show();
}

Since he should execute the else :

else {
    Toast.makeText(context,"Campo vazio!",Toast.LENGTH_LONG).show();}

Answer 1

Modify for this implementation

String srt =input.getText().toString();
if(!srt.equals(""))

The method getEditableText() class EditText returns an object of type Editable, to pick up the text you must use the method getText() which returns an object of the type CharSequence, soon after just convert it to String.