Question

I have a problem regarding Edit Text in Android.

I have a field named Username :

I want that whenever someone writes a username with a space e.g “Gaurav Arora”. Then it should raise a toast or error on the login button press.

I did in this way – I simply stopped the effect of space bar with the help of a text watcher as-

public static TextWatcher getNameTextWatcher(final TextView agrTextView) {
        TextWatcher mTextWatcherName = new TextWatcher() {
            public void onTextChanged(CharSequence arg0, int arg1, int arg2,
                    int arg3) {
            }

            public void beforeTextChanged(CharSequence arg0, int arg1,
                    int arg2, int arg3) {
            }

            public void afterTextChanged(Editable arg0) {

                String result = agrTextView.getText().toString().replaceAll(" ", "");
                if (!agrTextView.getText().toString().equals(result)) {
                    agrTextView.setText(result);
                }

}
}

But this has not solved my purpose. I just want to implement whenever the person uses a username with space it should accept the space but on the press of login button it should raise a toast

Thanks

Answer 1

Just check if your edit text contains blank space or not.

Use the following code in the onClick() event of the Button.

 if (agrTextView.getText().toString().contains(" ")) {
     agrTextView.setError("No Spaces Allowed");
     Toast.makeText(MyActivity.this, "No Spaces Allowed", 5000).show();
 }