忙过之后的日常记录
//记录字数上限
wordLimitNum= 100;
etSmStoreIntroduction.addTextChangedListener(new TextWatcher() {
//记录输入的字数
private CharSequence enterWords;
private int selectionStart;
private int selectionEnd;
private int enteredWords;
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
//实时记录输入的字数
enterWords= s;
}
@Override
public void afterTextChanged(Editable s) {
//已输入字数
enteredWords= wordLimitNum - s.length();
//TextView显示剩余字数
textViewRemainingWords.setText(100 - enteredWords+ "/100字");
selectionStart = editText.getSelectionStart();
selectionEnd = editText.getSelectionEnd();
if (enterWords.length() > wordLimitNum) {
//删除多余输入的字（不会显示出来）
s.delete(selectionStart - 1, selectionEnd);
int tempSelection = selectionEnd;
editText.setText(s);
//设置光标在最后
editText.setSelection(tempSelection);
}
}
});
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