Question

I have 6 EditText fields in an xml.. on Button click I need to validate whether all EditText have values or it is empty.
Currently I am check each EditText one by one.. How can I check all at once.

the Code

private Button BtnSave;
 EditText ev_last_name,ev_first_name,ev_email,ev_password,ev_confirm_password,ev_phone;
 String last_name,first_name,email,password,confirm_password,phone;

@Override
protected void onCreate(Bundle savedInstanceState) {
    // TODO Auto-generated method stub
    super.onCreate(savedInstanceState);
    setContentView(R.layout.signup);
    BtnSave=(Button) findViewById(R.id.BtnSave);
    ev_last_name=(EditText)findViewById(R.id.edit_lname);
    ev_first_name=(EditText)findViewById(R.id.edit_fname);
    ev_email=(EditText)findViewById(R.id.edit_email);
    ev_password=(EditText)findViewById(R.id.edit_passwd);
    ev_confirm_password=(EditText)findViewById(R.id.edit_cpasswd);
    ev_phone=(EditText)findViewById(R.id.edit_phone);



    BtnSave.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
             last_name=ev_last_name.getText().toString();
             first_name=ev_first_name.getText().toString();
             email=ev_email.getText().toString();
             password=ev_password.getText().toString();
             confirm_password=ev_confirm_password.getText().toString();
             phone=ev_phone.getText().toString();

             if ((ev_last_name.getText().toString().length() <= 0))
             {
                 System.out.println(" The EditText is empty");
                 //I will use the toast later
             }


        }
    });


}

Answer 1

Use a “for” cycle.

private boolean validate(EditText[] fields){
    for(int i = 0; i < fields.length; i++){
        EditText currentField = fields[i];
        if(currentField.getText().toString().length() <= 0){
            return false;
        }
    }
    return true;
}

and use the method like this:

boolean fieldsOK = validate(new EditText[] { ev_last_name, ev_first_name, ev_email })

will return true if all fields are non empty.