RadioGroup裡的radiobutton setcheck時沒有反應

重新刷新radioGroup時除了

deviceRadioGroup.removeAllViews();

還要

deviceRadioGroup.clearCheck();

看到網頁後才了解，困擾了好幾天

http://stackoverflow.com/questions/4035465/android-radiobutton-not-able-to-set-using-setcheckedfalse-method

Sqlite在多執行緒

可參考
http://stackoverflow.com/questions/5786206/to-to-implement-a-sqlite-manager-for-thread-safe-read-write-access

Fragment與Activity溝通

在官方的範例中有以下做法
http://developer.android.com/training/basics/fragments/communicating.html

//左側Fragment
public class MainLeftFragment extends Fragment {

 private OnFragmentInteractionListener mListener;

//點擊事件後如果要傳的值就使用
 mListener.onFragmentInteraction("*");


    @Override
    public void onAttach(Activity activity) {
        super.onAttach(activity);
        try {
            mListener = (OnFragmentInteractionListener) activity;
        } catch (ClassCastException e) {
            throw new ClassCastException(activity.toString()
                    + " must implement OnFragmentInteractionListener");
        }
    }

    public interface OnFragmentInteractionListener {

        public void onFragmentInteraction(String uri);

    }

}

//MainActivity

public class MainActivity extends BaseFragmentActivity implements  MainLeftFragment.OnFragmentInteractionListener{

//將要發生的事件寫在這

    @Override

    public void onFragmentInteraction(String uri) {

        Toast.makeText(this,uri,Toast.LENGTH_SHORT).show();

    }

}

在Android Activity中捕獲Application Crash

可以使用Thread.setDefaultUncaughtExceptionHandler()詳至google搜尋此關鍵字

java解析html結點

可以使用Jsoup來簡單解析，網址為
http://jsoup.org/cookbook/modifying-data/set-html

先記錄起來如果以後需要用到～