, aby sprawdzić, czy wszystkie EditText są puste

Question

Mam 6 pól EditText w xml ... na przycisku kliknij muszę sprawdzić, czy wszystkie EditText mają wartości lub jest pusty. Obecnie sprawdzam każdy EditText jeden po drugim. Jak mogę sprawdzić wszystko naraz.

Kodeks

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

Użyj "za" cykl.

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; 
} 

i użyć metody takie jak to:

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

zwróci true, jeśli wszystkie pola są non pusty.

Answer 2

private boolean isEmptyField (EditText editText){ 
    boolean result = editText.getText().toString().length() <= 0; 
    if (result) 
     Toast.makeText(context, "Fill all fielsd!", Toast.LENGTH_SHORT).show(); 
    return result; 
} 

BtnSave.setOnClickListener(new OnClickListener() { 

     @Override 
     public void onClick(View v) { 
      if (isEmptyField(ev_last_name)) return; 
      if (isEmptyField(ev_first_name)) return; 


      // your logic here; 
      ... 

     } 
    }); 

Answer 3

EditText resultInput = (EditText)findViewById(R.id.result); 

if(resultInput.getText().length() > 0) 
// Edit Text is Empty 
else 
// Edit Text is Empty