Question

我正在查询android Contact类，并且能够获取联系人姓名和号码，并能够在线性布局中添加多个文本视图，其中包含联系人的号码和名称，并且能够在共享首选项中保存单个textview数值并将其重新检索，如何我可以动态添加textviews值的数组（电话号码（字符串）在共享首选项中。如果任何人提供示例代码，它将帮助我很多，因为我第一次这样做，通过我搜索了很多关于这个话题但没有运气。

这是我的代码：

public class Cont extends Fragment {
    protected static final int PICK_CONTACT = 0;
    Button showConts;
    TextView[] resultTextView;
    ViewGroup addItems;
    final int N = 1; 
    String name;
    String cNumber;
    String[] array;
    String nameContact;
    String number;
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {

        View contViews = inflater.inflate(R.layout.cont, container, false);
        addItems = (LinearLayout) contViews.findViewById(R.id.adds);
         showConts = (Button) contViews.findViewById(R.id.opens);
         resultTextView =  new TextView[N]; //create an empty array;

            // create a new textview
            for (int i = 0; i < N; i++) {
                final TextView rowTextView = new TextView(getActivity());
                resultTextView = new TextView[N]; // create an empty array;
                addItems.addView(rowTextView);
                resultTextView[i] = rowTextView;
                if(resultTextView[i] != null ){
                    resultTextView[i].setText(nameContact+ " "+ cNumber);
                }
            }

         showConts.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                Intent intent = new Intent(Intent.ACTION_PICK, ContactsContract.Contacts.CONTENT_URI);
               startActivityForResult(intent, PICK_CONTACT);

            }
        });
        return contViews;
    }
    @Override 
    public void onActivityResult(int reqCode, int resultCode, Intent data){ 
        super.onActivityResult(reqCode, resultCode, data);

        switch(reqCode)
        {
           case (PICK_CONTACT):
             if (resultCode == Activity.RESULT_OK)
             {
                 Uri contactData = data.getData();
                 Cursor c = getActivity().managedQuery(contactData, null, null, null, null);
                  if (c.moveToFirst())
                  {
                      String id = c.getString(c.getColumnIndexOrThrow(ContactsContract.Contacts._ID));

                      String hasPhone = c.getString(c.getColumnIndex(ContactsContract.Contacts.HAS_PHONE_NUMBER));

                      if (hasPhone.equalsIgnoreCase("1")) 
                      {
                          Cursor phones = getActivity().getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI,null, 
                                 ContactsContract.CommonDataKinds.Phone.CONTACT_ID +" = "+ id,null, null);
                          phones.moveToFirst();
                          cNumber = phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
                           //Toast.makeText(getActivity(), cNumber, Toast.LENGTH_SHORT).show();

                           nameContact  = c.getString(c.getColumnIndexOrThrow(ContactsContract.Contacts.DISPLAY_NAME));
                          for (int i = 0; i < N; i++) {
                              final TextView rowTextView = new TextView(getActivity());
                              LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT));
                              params.setMargins(0,0,0,10);
                              resultTextView = new TextView[N];
                              rowTextView.setTextSize(34);
                              rowTextView.setHeight(140);
                              rowTextView.setGravity(Gravity.CENTER);
                              rowTextView.setBackgroundColor(Color.parseColor("#7d3f98"));
                              rowTextView.setTextColor(Color.WHITE);
                              //rowTextView.setBackgroundResource(R.drawable.corn);
                              addItems.addView(rowTextView);
                              resultTextView[i] = rowTextView;
                              resultTextView[i].setLayoutParams(params);
                              if(resultTextView[i] != null ){
                                  resultTextView[i].setText(nameContact+ " "+ cNumber);
                              }
                              resultTextView[i].setOnClickListener(new OnClickListener() {

                                @Override
                                public void onClick(View v) {
                                    String res1 = rowTextView.getText().toString();
                                     System.out.println("num " + res1.length());
                                    res1 = res1.split(" ")[res1.split(" ").length - 1];

                                    startDialActivity(res1);
                                }

                                private void startDialActivity(String result) {
                                    Intent intent = new Intent(Intent.ACTION_CALL);
                                    intent.setData(Uri.parse("tel:"+result));
                                    startActivity(intent);  
                                }
                            });

                      }
                 }  
           }
        }}}}

Answer 1

尝试使用google PreferenceActivity，您不必使用传统方式（SharedPreference sp = new ....），但我认为SharedPreferenceActivity非常简单，它是原生的，非常简单和强大的！

Answer 2

您可以制作JSONArray并通过制作JSONObject添加名称和电话号码，并将这些JSONObject添加到JSONArray。

JSONObject mainObject=null;
        try{
            mainObject=new JSONObject();
            JSONArray arr = new JSONArray();
            for (int i = 0; i < 10; i++) {
                JSONObject objName = new JSONObject();
                JSONObject objPhone = new JSONObject();
                objName.put("name", new String("abbcc"));
                objPhone.put("phone", new String("dfdfgdf"));
                arr.put(i,objName);
                arr.put(i,objPhone);
            }
            mainObject.put("mainObj",arr);
            System.out.println(mainObject.toString());
        }
        catch(Exception e){
        }
    shared.edit().putString("details",mainObject.toString()).commit();

然后从sharedPreferences中获取所需的字符串以及从JSONObject和JSONArray获取详细信息

如何在共享偏好设置Android中动态生成Textviews值

2 个答案: