Android Fragments 从bundle.getString向类Paragraph od droidText传递参数不起作用

0kjbasz6  于 2023-10-19  发布在  Android
关注(0)|答案(2)|浏览(139)

我不知道为什么变量myInt在我的代码中的某些地方是null。
在这些行中，它是确定的，所以variable不是null：

  1. myInt = bundle2.getString("scelta2", null);
  2. titolo3.setText(myInt);

当我在Paragraph p1=new Paragraph(myInt);中使用变量myInt时，它是null。
有什么问题吗？
TwoFragment.java

  1. public class TwoFragment extends Fragment{
  2.             
  3.                 private View v;
  4.                 Intent chooser=null;
  5.                 String myInt="";
  6.             
  7.                 public TwoFragment() {
  8.                     // Required empty public constructor
  9.                 }
  10.             
  11.                 @Override
  12.                 public void onCreate(Bundle savedInstanceState) {
  13.                     super.onCreate(savedInstanceState);
  14.                 }
  15.             
  16.                 @Override
  17.                 public View onCreateView(LayoutInflater inflater, ViewGroup container,
  18.                                          Bundle savedInstanceState) {
  19.                     // Inflate the layout for this fragment
  20.                     View rootView = inflater.inflate(R.layout.fragment_two, container, false);
  21.                     Button mButton = (Button) rootView.findViewById(R.id.newbutton);
  22.                     mButton.setOnClickListener(new View.OnClickListener() {
  23.                         public void onClick(View v) {
  24.             
  25.                             //sendemail();
  26.                             createPDF();
  27.                             viewPDF();
  28.             
  29.             
  30.             
  31.                         }
  32.                     });
  33.                     TextView titolo3 = (TextView)rootView.findViewById(R.id.result);
  34.                     TextView titolo2 = (TextView)rootView.findViewById(R.id.result2);
  35.                     TextView titolo4 = (TextView)rootView.findViewById(R.id.resultpizze);
  36.             
  37.                     //TextView titolo = (TextView)rootView.findViewById(R.id.quantità3);
  38.             
  39.                   /*  Bundle bundle2=getArguments();
  40.                     if(bundle2 != null){
  41.                         String string = bundle2.getString("scelta2", null);
  42.                         titolo3.setText(string);
  43.                     }*/
  44.             
  45.                     Bundle bundle2=getArguments();
  46.                     if(bundle2 != null){
  47.                         myInt = bundle2.getString("scelta2", null);
  48.                        titolo3.setText(myInt);
  49.                     }
  50.             
  51.                     Bundle bundle3=getArguments();
  52.                     if(bundle3 != null){
  53.                        // String myInt3 = bundle3.getString("totalebirre", null);
  54.                        //  cazzo2=Integer.parseInt(myInt3);
  55.                        int cazzo2=bundle3.getInt("totalebirre");
  56.                         titolo2.setText(String.valueOf(cazzo2));
  57.             
  58.             
  59.             
  60.                     }
  61.                     Bundle bundle=getArguments();
  62.                     if(bundle != null){
  63.                         // String myInt2 = bundle2.getString("totalepizze", null);
  64.                         //   cazzo=Integer.parseInt(myInt2);
  65.                         //titolo2.setText(myInt2);
  66.                         String string=bundle.getString("scelta3", null);
  67.                          titolo4.setText(string);
  68.             
  69.                     }
  70.             
  71.             
  72.             
  73.                     return rootView;
  74.                 }
  75.                /* public void sendemail(){
  76.             
  77.                     Intent intent = new Intent(Intent.ACTION_SEND);
  78.                     intent.setData(Uri.parse("mailto:"));
  79.                     String[] to={"[email protected]"};
  80.                     intent.putExtra(Intent.EXTRA_EMAIL,to);
  81.                     intent.putExtra(Intent.EXTRA_SUBJECT, "ciao");
  82.                     intent.putExtra(Intent.EXTRA_TEXT, "zao");
  83.                     intent.setType("message/rfc822");
  84.                     chooser=intent.createChooser(intent,"manda email");
  85.                     startActivity(chooser);
  86.                 }*/
  87.                public void createPDF() {
  88.             
  89.                    Document doc = new Document();
  90.             
  91.                    try {
  92.                        String path = Environment.getExternalStorageDirectory()
  93.                                .getAbsolutePath() + "/droidText";
  94.             
  95.                        File dir = new File(path);
  96.                        if (!dir.exists())
  97.                            dir.mkdirs();
  98.             
  99.                        Log.d("PDFCreator", "PDF Path: " + path);
  100.             
  101.                        File file = new File(dir, "sample.pdf");
  102.                        FileOutputStream fOut = new FileOutputStream(file);
  103.             
  104.                        PdfWriter.getInstance(doc, fOut);
  105.             
  106.                        // open the document
  107.                        doc.open();
  108.                        ByteArrayOutputStream stream = new ByteArrayOutputStream();
  109.                        Bitmap bitmap = BitmapFactory.decodeResource(getContext()
  110.                                .getResources(), R.drawable.androtuto);
  111.                        bitmap.compress(Bitmap.CompressFormat.JPEG, 100, stream);
  112.                        Image myImg = Image.getInstance(stream.toByteArray());
  113.                        myImg.setAlignment(Image.MIDDLE);
  114.             
  115.                        // add image to document
  116.                        doc.add(myImg);
  117.             
  118.                        Paragraph p1 = new Paragraph(myInt);
  119.                    Log.d("ciao",myInt);
  120.         
  121.                        Font paraFont = new Font(Font.COURIER);
  122.                        p1.setAlignment(Paragraph.ALIGN_CENTER);
  123.                        p1.setFont(paraFont);
  124.             
  125.                        // add paragraph to document
  126.                        doc.add(p1);
  127.             
  128.                        Paragraph p2 = new Paragraph("Ciao");
  129.                        Font paraFont2 = new Font(Font.COURIER, 14.0f, Color.GREEN);
  130.                        p2.setAlignment(Paragraph.ALIGN_CENTER);
  131.                        p2.setFont(paraFont2);
  132.             
  133.                        doc.add(p2);
  134.             
  135.                        stream = new ByteArrayOutputStream();
  136.                        bitmap = BitmapFactory.decodeResource(getContext()
  137.                                .getResources(), R.drawable.android);
  138.                        bitmap.compress(Bitmap.CompressFormat.JPEG, 100, stream);
  139.                        myImg = Image.getInstance(stream.toByteArray());
  140.                        myImg.setAlignment(Image.MIDDLE);
  141.             
  142.                        // add image to document
  143.                        doc.add(myImg);
  144.             
  145.                        // set footer
  146.                        Phrase footerText = new Phrase("Pied de page ");
  147.                        HeaderFooter pdfFooter = new HeaderFooter(footerText, false);
  148.                        doc.setFooter(pdfFooter);
  149.             
  150.                    } catch (DocumentException de) {
  151.                        Log.e("PDFCreator", "DocumentException:" + de);
  152.                    } catch (IOException e) {
  153.                        Log.e("PDFCreator", "ioException:" + e);
  154.                    } finally {
  155.                        doc.close();
  156.                    }
  157.             
  158.                }
  159.                 public void viewPDF(){
  160.                     String path = "/sdcard/droidText/sample.pdf";
  161.                     File targetFile = new File(path);
  162.                     Uri targetUri = Uri.fromFile(targetFile);
  163.             
  164.                     Intent intent;
  165.                     intent = new Intent(Intent.ACTION_VIEW);
  166.                     intent.setDataAndType(targetUri, "application/pdf");
  167.             
  168.                     startActivity(intent);
  169.                 }
  170.             
  171.             }

ThreeFragment.java
（我传递变量的片段）

  1. public class ThreeFragment extends Fragment implements
  2.         android.widget.CompoundButton.OnCheckedChangeListener {
  4.     ListView lv2;
  5.     ArrayList<Planet> planetList;
  6.     ListView lv;
  8.     ArrayList<Birra> birraList;
  9.     BirraAdapter biAdapter;
  10.     PlanetAdapter plAdapter;
  11.     Planet p;
  12.     String myInt="";
  15.     PlanetAdapter.PlanetHolder holder;
  17.     public ThreeFragment() {
  18.         // Required empty public constructor
  19.     }
  21.     @Override
  22.     public View onCreateView(LayoutInflater inflater, ViewGroup container,
  23.                              Bundle savedInstanceState) {
  24.         // Inflate the layout for this fragment
  26.         final ViewGroup rootView = (ViewGroup) inflater.inflate(R.layout.fragment_three, container, false);
  28.         Button mButton = (Button) rootView.findViewById(R.id.button2);
  29.         mButton.setOnClickListener(new View.OnClickListener() {
  30.             public void onClick(View v) {
  31.                 MyListFragment mlf=new MyListFragment();
  33.                 mlf.showResult(v);
  34.               // MyListFragment.showResult(v);
  35.                 showResult2(v);
  37.             }
  38.         });
  39.         //return inflater.inflate(R.layout.fragment_list2, container, false);
  40.         return rootView;
  41.     }
  43.     @Override
  44.     public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
  45.         super.onViewCreated(view, savedInstanceState);
  47.         lv2 = (ListView) getView().findViewById(R.id.listview2);
  48.         displayBirraList();
  49.     }
  51.     private void displayBirraList() {
  53.         birraList = new ArrayList<Birra>();
  54.         birraList.add(new Birra("Paulaner", 6, "€"));
  55.         birraList.add(new Birra("Forst", 7, "€"));
  56.         birraList.add(new Birra("Peroni", 5, "€"));
  57.         birraList.add(new Birra("Corona", 5, "€"));
  58.         birraList.add(new Birra("Nastro Azzurro", 4, "€"));
  59.         biAdapter = new BirraAdapter(birraList, getContext()) {
  60.             @Override
  61.             public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
  62.                 int pos = lv2.getPositionForView(buttonView);
  63.                 if (pos != ListView.INVALID_POSITION) {
  64.                     Birra b = birraList.get(pos);
  65.                     b.setSelected(isChecked);
  67.             /*Toast.makeText(
  68.                 getActivity(),
  69.                 "Clicked on Pizza: " + p.getName() + ". State: is "
  70.                         + isChecked, Toast.LENGTH_SHORT).show();*/
  71.                 }
  73.             }
  75.         };
  77.         lv2.setAdapter(biAdapter);
  78.     }
  80.     public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
  82.         /*int pos = lv.getPositionForView(buttonView);
  83.         if (pos != ListView.INVALID_POSITION) {
  84.             Planet p = planetList.get(pos);
  85.             p.setSelected(isChecked);
  87.             *//**//**//**//*Toast.makeText(
  88.                 getActivity(),
  89.                 "Clicked on Planet: " + p.getName() + ". State: is "
  90.                         + isChecked, Toast.LENGTH_SHORT).show();*//**//**//**//*
  91.         }
  92. */
  93.     }
  95.     public void showResult2(View v) {
  96.         String result = "Selected Product are :";
  97.         int totalAmount = 0;
  98.        // String a = "";
  100.         for (Birra b : biAdapter.getBox()) {
  102.             if (b.selected) {
  104.                 result += "\n" + b.name + " " + b.distance + "€" + "q.tà :" + b.getQuantità();
  105.                 int quantitaInt = Integer.parseInt(b.getQuantità());
  106.                 totalAmount += b.distance * quantitaInt;
  107.               //  a=String.valueOf(totalAmount);
  109.             }
  110.         }
  111.       /*  for (Planet p : plAdapter.getBox()) {
  112.             if (p.isSelected()) {
  114.                 result += "\n" + p.getName() + " " + p.getDistance() + "€" + "q.tà :" + p.getQuantità();
  115.                 int quantitaInt = Integer.parseInt(p.getQuantità());
  116.                 //totalAmount2+=p.distance * quantitaInt;
  117.                 //z=String.valueOf(totalAmount2);
  119.             }
  120.         }*/
  123.         Toast.makeText(getActivity(), result + "\n" +myInt + "\n" + "Total Amount:=" + totalAmount + "€", Toast.LENGTH_LONG).show();
  124.            Bundle bun2 = new Bundle();
  125.             bun2.putString("scelta2", result);
  126.             TwoFragment fgsearch2 = new TwoFragment();
  127.             fgsearch2.setArguments(bun2);
  128.             android.support.v4.app.FragmentTransaction transaction2 = getActivity().getSupportFragmentManager().beginTransaction();
  129.             transaction2.replace(R.id.content_main, fgsearch2);
  130.             transaction2.commit();
  132.             Bundle bun = new Bundle();
  133.            // bun.putString("totalebirre", a);
  134.         bun.putInt("totalebirre", totalAmount);
  135.             TwoFragment fgsearch = new TwoFragment();
  136.             fgsearch.setArguments(bun);
  137.             android.support.v4.app.FragmentTransaction transaction = getActivity().getSupportFragmentManager().beginTransaction();
  138.             transaction.replace(R.id.content_main2, fgsearch);
  139.             transaction.commit();
  140.     }
  141. }

调用三个片段的Main：

  1. public class MainBirra extends AppCompatActivity {
  3.     @Override
  4.     protected void onCreate(Bundle savedInstanceState) {
  5.         super.onCreate(savedInstanceState);
  6.         setContentView(R.layout.mainbirra);
  8.         getSupportFragmentManager().beginTransaction().
  10.                 replace(R.id.fragmentContainer2, new ThreeFragment()).commit();
  13.     }
  14.   /*  @Override protected void onDestroy() {
  15.         SharedPreferences preferences=getSharedPreferences("states", Context.MODE_PRIVATE);
  16.         SharedPreferences.Editor editor=preferences.edit();
  17.         editor.clear().apply();
  18.         super.onDestroy();
  19.         Log.e("OnDestroy", " callback_2");
  20.     }*/
  21. }
android-fragments

2条答案

按热度按时间
falq053o

falq053o1#

在我看来，你可以做一个静态方法，返回你想要启动的片段的instance，在这个方法中，你将初始化你的变量，比如TwoFragment中的myInt。因此，在www.example.com中TwoFragment.java添加此方法

  1. public static TwoFragment getInstance(String myInt){
  2. TwoFragment twoFragment=new TwoFragment();
  3. twoFragment.myInt=myInt;
  4. return twoFragment;
  5. }

当你需要在其他地方启动片段时，使用此代码代替默认构造函数

  1. public class ThreeFragment extends Fragment implements
  2.         android.widget.CompoundButton.OnCheckedChangeListener {
  4.     ListView lv2;
  5.     ArrayList<Planet> planetList;
  6.     ListView lv;
  8.     ArrayList<Birra> birraList;
  9.     BirraAdapter biAdapter;
  10.     PlanetAdapter plAdapter;
  11.     Planet p;
  12.     String myInt="";
  15.     PlanetAdapter.PlanetHolder holder;
  17.     public ThreeFragment() {
  18.         // Required empty public constructor
  19.     }
  21.     @Override
  22.     public View onCreateView(LayoutInflater inflater, ViewGroup container,
  23.                              Bundle savedInstanceState) {
  24.         // Inflate the layout for this fragment
  26.         final ViewGroup rootView = (ViewGroup) inflater.inflate(R.layout.fragment_three, container, false);
  28.         Button mButton = (Button) rootView.findViewById(R.id.button2);
  29.         mButton.setOnClickListener(new View.OnClickListener() {
  30.             public void onClick(View v) {
  31.                 MyListFragment mlf=new MyListFragment();
  33.                 mlf.showResult(v);
  34.               // MyListFragment.showResult(v);
  35.                 showResult2(v);
  37.             }
  38.         });
  39.         //return inflater.inflate(R.layout.fragment_list2, container, false);
  40.         return rootView;
  41.     }
  43.     @Override
  44.     public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
  45.         super.onViewCreated(view, savedInstanceState);
  47.         lv2 = (ListView) getView().findViewById(R.id.listview2);
  48.         displayBirraList();
  49.     }
  51.     private void displayBirraList() {
  53.         birraList = new ArrayList<Birra>();
  54.         birraList.add(new Birra("Paulaner", 6, "€"));
  55.         birraList.add(new Birra("Forst", 7, "€"));
  56.         birraList.add(new Birra("Peroni", 5, "€"));
  57.         birraList.add(new Birra("Corona", 5, "€"));
  58.         birraList.add(new Birra("Nastro Azzurro", 4, "€"));
  59.         biAdapter = new BirraAdapter(birraList, getContext()) {
  60.             @Override
  61.             public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
  62.                 int pos = lv2.getPositionForView(buttonView);
  63.                 if (pos != ListView.INVALID_POSITION) {
  64.                     Birra b = birraList.get(pos);
  65.                     b.setSelected(isChecked);
  67.             /*Toast.makeText(
  68.                 getActivity(),
  69.                 "Clicked on Pizza: " + p.getName() + ". State: is "
  70.                         + isChecked, Toast.LENGTH_SHORT).show();*/
  71.                 }
  73.             }
  75.         };
  77.         lv2.setAdapter(biAdapter);
  78.     }
  80.     public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
  82.         /*int pos = lv.getPositionForView(buttonView);
  83.         if (pos != ListView.INVALID_POSITION) {
  84.             Planet p = planetList.get(pos);
  85.             p.setSelected(isChecked);
  87.             *//**//**//**//*Toast.makeText(
  88.                 getActivity(),
  89.                 "Clicked on Planet: " + p.getName() + ". State: is "
  90.                         + isChecked, Toast.LENGTH_SHORT).show();*//**//**//**//*
  91.         }
  92. */
  93.     }
  95.     public void showResult2(View v) {
  96.         String result = "Selected Product are :";
  97.         int totalAmount = 0;
  98.        // String a = "";
  100.         for (Birra b : biAdapter.getBox()) {
  102.             if (b.selected) {
  104.                 result += "\n" + b.name + " " + b.distance + "€" + "q.tà :" + b.getQuantità();
  105.                 int quantitaInt = Integer.parseInt(b.getQuantità());
  106.                 totalAmount += b.distance * quantitaInt;
  107.               //  a=String.valueOf(totalAmount);
  109.             }
  110.         }
  111.       /*  for (Planet p : plAdapter.getBox()) {
  112.             if (p.isSelected()) {
  114.                 result += "\n" + p.getName() + " " + p.getDistance() + "€" + "q.tà :" + p.getQuantità();
  115.                 int quantitaInt = Integer.parseInt(p.getQuantità());
  116.                 //totalAmount2+=p.distance * quantitaInt;
  117.                 //z=String.valueOf(totalAmount2);
  119.             }
  120.         }*/
  123.         Toast.makeText(getActivity(), result + "\n" +myInt + "\n" + "Total Amount:=" + totalAmount + "€", Toast.LENGTH_LONG).show();
  125.             TwoFragment fgsearch2=TwoFragment.getInstance(result);
  126.             fgsearch2.setArguments(bun2);
  127.             android.support.v4.app.FragmentTransaction transaction2 = getActivity().getSupportFragmentManager().beginTransaction();
  128.             transaction2.replace(R.id.content_main, fgsearch2);
  129.             transaction2.commit();
  134.     }
  135. }
展开查看全部
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alen0pnh

alen0pnh2#

  1. public class TwoFragment extends Fragment {
  3.     private View v;
  4.     String myInt="";
  5.     int cazzo2;
  6.     String scelta3;
  8.     public TwoFragment() {
  9.         // Required empty public constructor
  10.     }
  11.     public static TwoFragment getInstance(String myInt,int cazzo2,String scelta3){
  12.         TwoFragment twoFragment=new TwoFragment();
  13.         twoFragment.myInt=myInt;
  14.         twoFragment.cazzo2=cazzo2;
  15.         twoFragment.scelta3=scelta3;
  16.         return twoFragment;
  17.     }
  19.     @Override
  20.     public View onCreateView(LayoutInflater inflater, ViewGroup container,
  21.                              Bundle savedInstanceState) {
  22.         // Inflate the layout for this fragment
  23.         View rootView = inflater.inflate(R.layout.fragment_two, container, false);
  24.         Button mButton = (Button) rootView.findViewById(R.id.newbutton);
  25.         mButton.setOnClickListener(new View.OnClickListener() {
  26.             public void onClick(View v) {
  28.                 //sendemail();
  29.                 createPDF();
  30.                 viewPDF();
  33.             }
  34.         });
  35.         TextView titolo3 = (TextView)rootView.findViewById(R.id.result);
  36.         TextView titolo2 = (TextView)rootView.findViewById(R.id.result2);
  37.         TextView titolo4 = (TextView)rootView.findViewById(R.id.resultpizze);
  39.         titolo3.setText(myInt);
  40.         titolo2.setText(String.valueOf(cazzo2));
  41.         titolo4.setText(scelta3);
  43.         return rootView;
  44.     }
  45.     /* public void sendemail(){
  47.          Intent intent = new Intent(Intent.ACTION_SEND);
  48.          intent.setData(Uri.parse("mailto:"));
  49.          String[] to={"[email protected]"};
  50.          intent.putExtra(Intent.EXTRA_EMAIL,to);
  51.          intent.putExtra(Intent.EXTRA_SUBJECT, "ciao");
  52.          intent.putExtra(Intent.EXTRA_TEXT, "zao");
  53.          intent.setType("message/rfc822");
  54.          chooser=intent.createChooser(intent,"manda email");
  55.          startActivity(chooser);
  56.      }*/
  57.     public void createPDF() {
  59.         Document doc = new Document();
  61.         try {
  62.             String path = Environment.getExternalStorageDirectory()
  63.                     .getAbsolutePath() + "/droidText";
  65.             File dir = new File(path);
  66.             if (!dir.exists())
  67.                 dir.mkdirs();
  69.             Log.d("PDFCreator", "PDF Path: " + path);
  71.             File file = new File(dir, "sample.pdf");
  72.             FileOutputStream fOut = new FileOutputStream(file);
  74.             PdfWriter.getInstance(doc, fOut);
  76.             // open the document
  77.             doc.open();
  78.             ByteArrayOutputStream stream = new ByteArrayOutputStream();
  79.             Bitmap bitmap = BitmapFactory.decodeResource(getContext()
  80.                     .getResources(), R.drawable.androtuto);
  81.             bitmap.compress(Bitmap.CompressFormat.JPEG, 100, stream);
  82.             Image myImg = Image.getInstance(stream.toByteArray());
  83.             myImg.setAlignment(Image.MIDDLE);
  85.             // add image to document
  86.             doc.add(myImg);
  88.             Paragraph p1 = new Paragraph(myInt);
  89.             Log.d("ciao",myInt);
  91.             Font paraFont = new Font(Font.COURIER);
  92.             p1.setAlignment(Paragraph.ALIGN_CENTER);
  93.             p1.setFont(paraFont);
  95.             // add paragraph to document
  96.             doc.add(p1);
  98.             Paragraph p2 = new Paragraph("Ciao");
  99.             Font paraFont2 = new Font(Font.COURIER, 14.0f, Color.GREEN);
  100.             p2.setAlignment(Paragraph.ALIGN_CENTER);
  101.             p2.setFont(paraFont2);
  103.             doc.add(p2);
  105.             stream = new ByteArrayOutputStream();
  106.             bitmap = BitmapFactory.decodeResource(getContext()
  107.                     .getResources(), R.drawable.android);
  108.             bitmap.compress(Bitmap.CompressFormat.JPEG, 100, stream);
  109.             myImg = Image.getInstance(stream.toByteArray());
  110.             myImg.setAlignment(Image.MIDDLE);
  112.             // add image to document
  113.             doc.add(myImg);
  115.             // set footer
  116.             Phrase footerText = new Phrase("Pied de page ");
  117.             HeaderFooter pdfFooter = new HeaderFooter(footerText, false);
  118.             doc.setFooter(pdfFooter);
  120.         } catch (DocumentException de) {
  121.             Log.e("PDFCreator", "DocumentException:" + de);
  122.         } catch (IOException e) {
  123.             Log.e("PDFCreator", "ioException:" + e);
  124.         } finally {
  125.             doc.close();
  126.         }
  128.     }
  129.     public void viewPDF(){
  130.         String path = "/sdcard/droidText/sample.pdf";
  131.         File targetFile = new File(path);
  132.         Uri targetUri = Uri.fromFile(targetFile);
  134.         Intent intent;
  135.         intent = new Intent(Intent.ACTION_VIEW);
  136.         intent.setDataAndType(targetUri, "application/pdf");
  138.         startActivity(intent);
  139.     }
  141. }

其他片段

  1. public class ThreeFragment extends Fragment implements
  2.         android.widget.CompoundButton.OnCheckedChangeListener {
  4.     ListView lv2;
  5.     ArrayList<Planet> planetList;
  6.     ListView lv;
  8.     ArrayList<Birra> birraList;
  9.     BirraAdapter biAdapter;
  10.     PlanetAdapter plAdapter;
  11.     Planet p;
  12.     String myInt="";
  15.     PlanetAdapter.PlanetHolder holder;
  17.     public ThreeFragment() {
  18.         // Required empty public constructor
  19.     }
  21.     @Override
  22.     public View onCreateView(LayoutInflater inflater, ViewGroup container,
  23.                              Bundle savedInstanceState) {
  24.         // Inflate the layout for this fragment
  26.         final ViewGroup rootView = (ViewGroup) inflater.inflate(R.layout.fragment_three, container, false);
  28.         Button mButton = (Button) rootView.findViewById(R.id.button2);
  29.         mButton.setOnClickListener(new View.OnClickListener() {
  30.             public void onClick(View v) {
  31.                 MyListFragment mlf=new MyListFragment();
  33.                 mlf.showResult(v);
  34.                 // MyListFragment.showResult(v);
  35.                 showResult2(v);
  37.             }
  38.         });
  39.         //return inflater.inflate(R.layout.fragment_list2, container, false);
  40.         return rootView;
  41.     }
  43.     @Override
  44.     public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
  45.         super.onViewCreated(view, savedInstanceState);
  47.         lv2 = (ListView) getView().findViewById(R.id.listview2);
  48.         displayBirraList();
  49.     }
  51.     private void displayBirraList() {
  53.         birraList = new ArrayList<Birra>();
  54.         birraList.add(new Birra("Paulaner", 6, "€"));
  55.         birraList.add(new Birra("Forst", 7, "€"));
  56.         birraList.add(new Birra("Peroni", 5, "€"));
  57.         birraList.add(new Birra("Corona", 5, "€"));
  58.         birraList.add(new Birra("Nastro Azzurro", 4, "€"));
  59.         biAdapter = new BirraAdapter(birraList, getContext()) {
  60.             @Override
  61.             public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
  62.                 int pos = lv2.getPositionForView(buttonView);
  63.                 if (pos != ListView.INVALID_POSITION) {
  64.                     Birra b = birraList.get(pos);
  65.                     b.setSelected(isChecked);
  67.             /*Toast.makeText(
  68.                 getActivity(),
  69.                 "Clicked on Pizza: " + p.getName() + ". State: is "
  70.                         + isChecked, Toast.LENGTH_SHORT).show();*/
  71.                 }
  73.             }
  75.         };
  77.         lv2.setAdapter(biAdapter);
  78.     }
  80.     public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
  82.         /*int pos = lv.getPositionForView(buttonView);
  83.         if (pos != ListView.INVALID_POSITION) {
  84.             Planet p = planetList.get(pos);
  85.             p.setSelected(isChecked);
  87.             *//**//**//**//*Toast.makeText(
  88.                 getActivity(),
  89.                 "Clicked on Planet: " + p.getName() + ". State: is "
  90.                         + isChecked, Toast.LENGTH_SHORT).show();*//**//**//**//*
  91.         }
  92. */
  93.     }
  95.     public void showResult2(View v) {
  96.         String result = "Selected Product are :";
  97.         int totalAmount = 0;
  98.         // String a = "";
  100.         for (Birra b : biAdapter.getBox()) {
  102.             if (b.selected) {
  104.                 result += "\n" + b.name + " " + b.distance + "€" + "q.tà :" + b.getQuantità();
  105.                 int quantitaInt = Integer.parseInt(b.getQuantità());
  106.                 totalAmount += b.distance * quantitaInt;
  107.                 //  a=String.valueOf(totalAmount);
  109.             }
  110.         }
  111.       /*  for (Planet p : plAdapter.getBox()) {
  112.             if (p.isSelected()) {
  114.                 result += "\n" + p.getName() + " " + p.getDistance() + "€" + "q.tà :" + p.getQuantità();
  115.                 int quantitaInt = Integer.parseInt(p.getQuantità());
  116.                 //totalAmount2+=p.distance * quantitaInt;
  117.                 //z=String.valueOf(totalAmount2);
  119.             }
  120.         }*/
  123.         Toast.makeText(getActivity(), result + "\n" +myInt + "\n" + "Total Amount:=" + totalAmount + "€", Toast.LENGTH_LONG).show();
  124.         TwoFragment fgsearch2 = TwoFragment.getInstance(result,totalAmount,"test");
  125.         android.support.v4.app.FragmentTransaction transaction2 = getActivity().getSupportFragmentManager().beginTransaction();
  126.         transaction2.replace(R.id.content_main, fgsearch2);
  127.         transaction2.commit();
  131.     }
  132. }
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