Validation input(android) count

public void validateLengthInput(){
    EditText editText1;

    @Override
    protected void onCreate(Bundle savedInstanceState){
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        editText1 = (EditText)findViewById(R.id.tvValidate);

        editText1.setOnFocusChangeListener(new View.OnFocusChangeListener(){
            @Override
            public void onFocusChange(View v, boolean hasFocus){
                if(editText1.getText().length() < 5){
                    editText1.setError("Your input failed...!")
                }
            }
        });
    }
}