Getting character count of EditText

问题

I'm trying to get a character count of an EditText. I've looked into different properties of the EditText and TextView classes, but there doesn't seem to be a function that returns the amount of characters. I have tried to use the TextWatcher, but that is not ideal since sometimes I load a saved message into the EditText from the preferences, and TextWatcher does not count characters not typed right then.

Any help would be great!

Cheers!

回答1:

Just grab the text in the EditText as a string and check its length:

int length = editText.getText().length();

回答2:

EditText edittext;
private final TextWatcher mTextEditorWatcher = new TextWatcher() {

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

        }

        public void onTextChanged(CharSequence s, int start, int before, int count) {
           //This sets a textview to the current length
           textview.setText(String.valueOf(s.length());
        }

        public void afterTextChanged(Editable s) {
        }
};
 editText.addTextChangedListener(mTextEditorWatcher);

来源：https://stackoverflow.com/questions/2960981/getting-character-count-of-edittext