Java tutorial
/* * Copyright 2015. J.F.Eick * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package de.uni_weimar.m18.anatomiederstadt.element; import android.app.Activity; import android.content.Context; import android.os.Bundle; import android.os.Vibrator; import android.support.v4.app.Fragment; import android.util.Log; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.Button; import android.widget.Toast; import com.afollestad.materialdialogs.MaterialDialog; import com.baasbox.android.BaasBox; import com.baasbox.android.BaasHandler; import com.baasbox.android.BaasResult; import com.baasbox.android.json.JsonException; import com.baasbox.android.json.JsonObject; import com.baasbox.android.net.HttpRequest; import com.nispok.snackbar.Snackbar; import com.nispok.snackbar.SnackbarManager; import com.nispok.snackbar.listeners.EventListener; import org.json.JSONException; import org.json.JSONObject; import de.uni_weimar.m18.anatomiederstadt.AnatomieDerStadtApplication; import de.uni_weimar.m18.anatomiederstadt.R; import de.uni_weimar.m18.anatomiederstadt.util.LevelStateManager; /** * A simple {@link Fragment} subclass. * Use the {@link Quiz4Buttons#newInstance} factory method to * create an instance of this fragment. */ public class Quiz4Buttons extends Fragment implements View.OnClickListener { // target, correctInt, button1, button2, button3, button4, hint, pointsInt, penaltyInt private static final String LOG_TAG = Quiz4Buttons.class.getSimpleName(); // the fragment initialization parameters, e.g. ARG_ITEM_NUMBER private static final String ARG_PARAM1 = "target"; private static final String ARG_PARAM2 = "correct"; private static final String ARG_PARAM3 = "button1"; private static final String ARG_PARAM4 = "button2"; private static final String ARG_PARAM5 = "button3"; private static final String ARG_PARAM6 = "button4"; private static final String ARG_PARAM7 = "hint"; private static final String ARG_PARAM8 = "points"; private static final String ARG_PARAM9 = "penalty"; private static final String ARG_PARAM10 = "questionId"; private String mTarget; private int mCorrect; private String mButton1; private String mButton2; private String mButton3; private String mButton4; private String mHint; private int mPoints; private int mPenalty; private String mQuestionId; private int mTries = 0; private final int mMaxTries = 3; private OnFragmentInteractionListener mListener; public interface OnFragmentInteractionListener { public void correctAnswerAction(String pageId); } public static Quiz4Buttons newInstance(String target, int correctInt, String button1, String button2, String button3, String button4, String hint, int pointsInt, int penaltyInt, String questionId) { Quiz4Buttons fragment = new Quiz4Buttons(); Bundle args = new Bundle(); args.putString(ARG_PARAM1, target); args.putInt(ARG_PARAM2, correctInt); args.putString(ARG_PARAM3, button1); args.putString(ARG_PARAM4, button2); args.putString(ARG_PARAM5, button3); args.putString(ARG_PARAM6, button4); args.putString(ARG_PARAM7, hint); args.putInt(ARG_PARAM8, pointsInt); args.putInt(ARG_PARAM9, penaltyInt); args.putString(ARG_PARAM10, questionId); fragment.setArguments(args); return fragment; } public Quiz4Buttons() { // Required empty public constructor } public void submitPointsToBackend(int points) { BaasBox cli = BaasBox.getDefault(); LevelStateManager stateManager = ((AnatomieDerStadtApplication) getActivity().getApplicationContext()) .getStateManager(getActivity()); JsonObject parameters = new JsonObject(); try { parameters.put("level", stateManager.getBasePath()); parameters.put("question", "q" + mQuestionId); parameters.put("score", points); } catch (JsonException e) { } cli.rest(HttpRequest.POST, "plugin/updatescore.bb", parameters, true, new BaasHandler<JsonObject>() { @Override public void handle(BaasResult<JsonObject> baasResult) { Log.d(LOG_TAG, "result: " + baasResult.toString()); if (baasResult.isSuccess()) { Log.d(LOG_TAG, "Score for question " + mQuestionId + " submitted successfully."); } else { Log.d(LOG_TAG, "Error. Could not submit score."); } } }); } @Override public void onClick(View v) { Button correctButton; switch (mCorrect) { case 1: correctButton = (Button) getActivity().findViewById(R.id.button1); break; case 2: correctButton = (Button) getActivity().findViewById(R.id.button2); break; case 3: correctButton = (Button) getActivity().findViewById(R.id.button3); break; case 4: correctButton = (Button) getActivity().findViewById(R.id.button4); break; default: correctButton = (Button) getActivity().findViewById(R.id.button1); } mTries += 1; if (v.getId() == correctButton.getId()) { // correct answer String congratulations = String.format(getString(R.string.congratulations_format_string), mPoints); SnackbarManager.show(Snackbar.with(getActivity()).position(Snackbar.SnackbarPosition.TOP).margin(32, 32) .backgroundDrawable(R.drawable.points_snackbar_shape).text(congratulations) .eventListener(new EventListener() { @Override public void onShow(Snackbar snackbar) { } @Override public void onShowByReplace(Snackbar snackbar) { } @Override public void onShown(Snackbar snackbar) { } @Override public void onDismiss(Snackbar snackbar) { } @Override public void onDismissByReplace(Snackbar snackbar) { } @Override public void onDismissed(Snackbar snackbar) { if (mListener != null) { mListener.correctAnswerAction(mTarget); } } })); //Toast.makeText(getActivity(), "RRRRRRRICHTIG!", Toast.LENGTH_SHORT).show(); submitPointsToBackend(mPoints); } else if (mTries >= mMaxTries) { // user entered wrong answer too often String sorry = getString(R.string.sorry_correct_answer) + "\n\"" + correctButton.getText() + "\""; new MaterialDialog.Builder(getActivity()).title(getString(R.string.sorry_correct_answer_dialog_title)) .content(sorry).positiveText(getString(R.string.sorry_dismiss)) .callback(new MaterialDialog.ButtonCallback() { @Override public void onPositive(MaterialDialog dialog) { if (mListener != null) { // go to next page anyway mListener.correctAnswerAction(mTarget); } } }).show(); } else { // wrong answer mPoints -= mPenalty; Vibrator vibrator = (Vibrator) getActivity().getSystemService(Context.VIBRATOR_SERVICE); vibrator.vibrate(300); new MaterialDialog.Builder(getActivity()).title(getString(R.string.wrong_answer_dialog_title)) .content(mHint).positiveText(R.string.wrong_answer_dismiss).show(); //Toast.makeText(getActivity(), "BZZZZZZZZZTTTT... falsch!", Toast.LENGTH_SHORT).show(); } } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); if (getArguments() != null) { mTarget = getArguments().getString(ARG_PARAM1); mCorrect = getArguments().getInt(ARG_PARAM2); mButton1 = getArguments().getString(ARG_PARAM3); mButton2 = getArguments().getString(ARG_PARAM4); mButton3 = getArguments().getString(ARG_PARAM5); mButton4 = getArguments().getString(ARG_PARAM6); mHint = getArguments().getString(ARG_PARAM7); mPoints = getArguments().getInt(ARG_PARAM8); mPenalty = getArguments().getInt(ARG_PARAM9); mQuestionId = getArguments().getString(ARG_PARAM10); } } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { // Inflate the layout for this fragment View rootView = inflater.inflate(R.layout.fragment_quiz_multiple_choice, container, false); Button button1 = (Button) rootView.findViewById(R.id.button1); button1.setText(mButton1); Button button2 = (Button) rootView.findViewById(R.id.button2); button2.setText(mButton2); Button button3 = (Button) rootView.findViewById(R.id.button3); button3.setText(mButton3); Button button4 = (Button) rootView.findViewById(R.id.button4); button4.setText(mButton4); button1.setOnClickListener(this); button2.setOnClickListener(this); button3.setOnClickListener(this); button4.setOnClickListener(this); return rootView; } @Override public void onAttach(Activity activity) { super.onAttach(activity); try { mListener = (OnFragmentInteractionListener) activity; } catch (ClassCastException e) { throw new ClassCastException(activity.toString() + " must implement OnFragmentInteractionListener"); } } @Override public void onDetach() { super.onDetach(); mListener = null; } }