editText= (EditText)findViewById(R.id.text);

editText.addTextChangedListener(textWatcher);

private TextWatcher textWatcher = new TextWatcher() {
  
  @Override
  public void onTextChanged(CharSequence s, int start, int before, int count) {
   // TODO Auto-generated method stub
   //   doSearchMethod();

  Log.e("111", "改中");
  }
  
  @Override
  public void beforeTextChanged(CharSequence s, int start, int count,
    int after) {
   // TODO Auto-generated method stub

  Log.e("111", "改前");
  }
  
  @Override
  public void afterTextChanged(Editable s) {
   // TODO Auto-generated method stub
   doSearchMethod();

  Log.e("111", "改完");
  }
 };

 

private void doSearchMethod(){
  String keyword = editSearch.getText().toString();
  if (GlobalInfo.SOFTPRODUCTLIST.get(i).getName().indexOf(keyword) >= 0) { 

  //处理代码
  }

}