CODEWITHSUNDEEP
android
Satheesh Jagana
Satheesh Jagana

Reputation: 75

when i skip the edittext field(eg:name), i want to show error message like name field is empty

when i skip the EditText field(eg:name),i want to display error message like "name field is empty". this is my code, 

    public void onClick(View v) {
        String userName=username.getText().toString();
        String passWord=password.getText().toString();
        if (userName.equals("")){
            username.setError("Username Required");
        }
        else if(passWord.isEmpty()){
            password.setError("Password Required");
        }
        else{
            Toast.makeText(Login.this, "Success", Toast.LENGTH_SHORT).show();
        }

    }

please help me.

Upvotes: 1

Views: 123

Answers (3)

Dhiraj
Dhiraj

Reputation: 910

Suppose you are trying to check valid username then on text change event of EditText you can use this code.

edit_name.addTextChangedListener(new TextWatcher() {

            @Override
            public void onTextChanged(CharSequence s, int start, int before, int count) {}

            @Override
            public void beforeTextChanged(CharSequence s, int start, int count,
                    int after) {}

            @Override
            public void afterTextChanged(Editable s) {
                Is_Valid_Person_Name(edit_name);

            }
        });

It is pretty simple and will show you error in red color exactly beside to the editText which you are filling as you can see on this site

  public void Is_Valid_Person_Name(EditText edt) throws NumberFormatException {
        if (edt.getText().toString().length() <= 0) {
            edt.setError("Accept Alphabets Only.");
                name = null;
        } else if (!edt.getText().toString().matches("[a-zA-Z ]+")) {
            edt.setError("Accept Alphabets Only.");
            name = null;
        } else {
            name = edt.getText().toString();
            edt.setError(null);
        }

        }

Similar way you can apply other validations..

Upvotes: 0

Sathish Kumar J
Sathish Kumar J

Reputation: 4335

Try this, using setOnFocusChangeListener()

UserName.setOnFocusChangeListener(new OnFocusChangeListener() {

        @Override
        public void onFocusChange(View v, boolean hasFocus) {

            String userName=username.getText().toString();
                if (userName.equals("")){
                username.setError("name field is empty");
                username.requestFocus();
                }
            }
        }
    });

    Password.setOnFocusChangeListener(new OnFocusChangeListener() {

        @Override
        public void onFocusChange(View v, boolean hasFocus) {

            String passWord=password.getText().toString();
                if(passWord.equals("")){
                password.setError("Password Required");
                password.requestFocus();
                }
            }
        }
    });

Upvotes: 0

Nitesh Pareek
Nitesh Pareek

Reputation: 362

on button click you can check edit text empty or nor then show error 

public void onClick(View v) {
            String userName=username.getText().toString();
            String passWord=password.getText().toString();
            if (userName.equals("")){
                username.setError("name field is empty");
            }
            else if(passWord.isEmpty()){
                password.setError("Password Required");
            }
            else{
                Toast.makeText(Login.this, "Success", Toast.LENGTH_SHORT).show();
            }

        }

Upvotes: 1

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