博客展示了Java代码实现EditText文本监听功能。在initView方法中初始化视图组件，为EditText添加TextWatcher监听器。在TextWatcher的afterTextChanged方法里，更新TextView显示剩余可输入字数，实现了文本输入的动态反馈。
private void initView(View view) {
// TODO Auto-generated method stub
mTvNotify = (TextView) view.findViewById(R.id.feedback_tv);
mEtContent = (EditText) view.findViewById(R.id.feedback_edit);
mEtContent.addTextChangedListener(watcher);
mBtnSubmit = (Button) view.findViewById(R.id.submit);
mBtnSubmit.setOnClickListener(btnClickListener);
params = new HashMap();
}
private TextWatcher watcher = new TextWatcher(){
@Override
public void beforeTextChanged(CharSequence paramCharSequence,
int paramInt1, int paramInt2, int paramInt3) {
// TODO Auto-generated method stub
}
@Override
public void onTextChanged(CharSequence paramCharSequence,
int paramInt1, int paramInt2, int paramInt3) {
// TODO Auto-generated method stub
}
@Override public void afterTextChanged(Editable paramEditable) { // TODO Auto-generated method stub mTvNotify.setText("还可以输入"+(200-paramEditable.length())+"字"); } };
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