android - EditText - 光标在明文时开始显示每个字母

Question

我将 TextWatcher 设置为 EditText，如下所示。但是当我尝试清除文本时，光标会在清除每个字母后开始。

  class MyInputWatcher implements TextWatcher {

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

    }
    @Override
    public void onTextChanged(CharSequence s, int start, int before,
            int count) {
        et.removeTextChangedListener(watcher2);
        et.setText(s.toString().replaceAll("[^[:alpha:]]", ""));
        et.addTextChangedListener(watcher2);
    }
    @Override
    public void afterTextChanged(Editable s) {

    }
}

Answer 1

这样做(更新):

class MyInputWatcher implements TextWatcher {

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

    }

    @Override
    public void onTextChanged(CharSequence s, int start, int before, int count) {
        String temp = s.toString().replaceAll("[^a-zA-Z]", "");
        if (s.toString().length() != temp.length()) {
            et.setText(temp);
            et.setSelection(temp.length());
        }
    }

    @Override
    public void afterTextChanged(Editable s) {
    }
}