[移动开发]Android @ 话题 输入框自定义view

https://gitee.com/Pino_W/ait.git

记录一下

mBinding.atEdittext.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
// 从start开始的count个字符将会被一个新的长度为after的文本替换，注意这里是将被替换，还没有被替换
Editable editable = mBinding.atEdittext.getText();
// 光标起始为止如果不是在最后，那对于在光标后面的文字块都要做偏移
if (start < editable.length()) {
int end = start + count;
int offset = after - count;
whenDelText(start, end, offset);
}
}

        @Override
        public void onTextChanged(CharSequence s, int start, int before, int count) {
            if (count == 1 && !TextUtils.isEmpty(s)) {
                char mentionChar = s.toString().charAt(start);
                int selectionStart = mBinding.atEdittext.getSelectionStart();
                if (mentionChar == '@') {
                    mPresenter.getData(page, pageNum);
                    // 这里是把刚刚输入的@删除掉
                    mBinding.atEdittext.getText().delete(selectionStart - 1, selectionStart);
                }

// else if (mentionChar == ‘#’) {
// startActivityForResult(TopicListActivity.getTopicListIntent(MainActivity.this), REQUEST_TAG_APPEND);
// et_view.getText().delete(selectionStart - 1, selectionStart);
// }
}

        }

        @Override
        public void afterTextChanged(Editable s) {
            if (s.length() > 0) {
                setBtnBg();
            } else {
                if (videoList.size() <= 0 && photoAdapter.getmList().size() <= 0 && mVicePath == null) {
                    setBtnBgNormal();
                }
            }
        }
    });