EditText editText = (EditText) findViewById(R.id.edit);editText.addTextChangedListener(new TextWatcher() { @Override public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) { } //輸入時的調用 @Override public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {  Log.d(TAG, "onTextChanged() returned: ");  mHandler.removeCallbacks(mRunnable);  //800毫秒沒有輸入認為輸入完畢  mHandler.postDelayed(mRunnable, 800); } @Override public void afterTextChanged(Editable editable) {  Log.d(TAG, "onTextChanged() returned: 2222"); }});

private Handler mHandler = new Handler() { @Override public void handleMessage(Message msg) {  super.handleMessage(msg);  if (EDIT_OK == msg.what) {   Log.d(TAG, "handleMessage() returned:輸入完成 " );  } }};private Runnable mRunnable = new Runnable() { @Override public void run() {  mHandler.sendEmptyMessage(EDIT_OK); }};