从Android中的联系人列表中获取联系人

时间:2016-06-08 10:06:51

标签: java android android-studio android-intent android-contacts

public class PhoneActivity extends Activity
{
private static final String TAG = PhoneActivity.class.getSimpleName();
private static final int REQUEST_CODE_PICK_CONTACTS = 1;
private Uri uriContact;
private String contactID;


/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
{
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
}

 public void onClickSelectContact(View btnSelectContact) {
   startActivityForResult(new Intent(Intent.ACTION_PICK, ContactsContract.Contacts.CONTENT_URI),REQUEST_CODE_PICK_CONTACTS); 
   }

  @Override
   protected void onActivityResult(int requestCode,int resultCode,Intent data) {
     super.onActivityResult(requestCode,resultCode,data);

      if(requestCode == REQUEST_CODE_PICK_CONTACTS && resultCode == RESULT_OK) {
          Log.d(TAG,"Response:" + data.toString());  
          uriContact = data.getData();

          retrieveContactName();
      retrieveContactNumber();
          retrieveContactPhoto();
        }
     }

   private void retrieveContactPhoto() {
        Bitmap photo = null;

         try
             {
               InputStream inputStream = ContactsContract.Contacts.openContactPhotoInputStream(getContentResolver(),
                          ContentUris.withAppendedId(ContactsContract.Contacts.CONTENT_URI,new Long(contactID)));

                   if(inputStream != null) {
                    photo = BitmapFactory.decodeStream(inputStream);
                    ImageView imageView = (ImageView) findViewById(R.id.img_contact);
                    imageView.setImageBitmap(photo);
                    }
              assert inputStream != null;
              inputStream.close();

             }  catch (IOException e) {
                 e.printStackTrace();
                 } 
               }

    private void retrieveContactNumber()  {
           String contactNumber = null;

          Cursor cursorID = getContentResolver().query(uriContact,
                                   new String[]{ContactsContract.Contacts._ID},
                                   null,null,null);
          if(cursorID.moveToFirst()) {
             contactID = cursorID.getString(cursorID.getColumnIndex(ContactsContract.Contacts._ID));
            }
             cursorID.close();
             Log.d(TAG,"Contact ID:" + contactID);

              Cursor cursorPhone = getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
                                    new String[]{ContactsContract.CommonDataKinds.Phone.NUMBER},

                              ContactsContract.CommonDataKinds.Phone.CONTACT_ID + " = ? AND " + 
                                ContactsContract.CommonDataKinds.Phone.TYPE + "=" +
                                ContactsContract.CommonDataKinds.Phone.TYPE_MOBILE, 
                                new String[]{contactID},null);

        if (cursorPhone.moveToFirst()) {
           contactNumber = cursorPhone.getString(cursorPhone.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
         }

    cursorPhone.close();

    Log.d(TAG, "Contact Phone Number: " + contactNumber);
} 
      private void retrieveContactName() {
             String contactName = null;
            Cursor cursor = getContentResolver().query(uriContact, null, null, null,null);
            if(cursor.moveToFirst()) {
             contactName = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));
          }
           cursor.close();
         Log.d(TAG, "Contact Name : " + contactName);             
       }
  

当我在contacts.Iblem中选择联系人时,App崩溃了。问题是将结果返回给Activity调用。我已经发布了logcat

06-08 13:16:06.488  1520  1520 D PhoneActivity: Contact Name : Jeevankumar M
 06-08 13:16:06.515  1520  1520 D PhoneActivity: Contact ID:1
 06-08 13:16:06.554  1520  1520 D PhoneActivity: Contact Phone Number: (974) 303-3493
 06-08 13:16:06.575  1272  1272 I Choreographer: Skipped 54 frames!  The application may be doing too much work on its main thread.
 06-08 13:16:06.721  1520  1520 D AndroidRuntime: Shutting down VM
 06-08 13:16:06.731  1520  1520 E AndroidRuntime: FATAL EXCEPTION: main
 06-08 13:16:06.731  1520  1520 E AndroidRuntime: Process: com.example.phone, PID: 1520
 06-08 13:16:06.731  1520  1520 E AndroidRuntime: java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=1, result=-1, data=Intent { dat=content://com.android.contacts/contacts/lookup/0r1-3B31315329433D5141294B41/1 flg=0x1 }} to activity {com.example.phone/com.example.phone.PhoneActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void java.io.InputStream.close()' on a null object reference
 06-08 13:16:06.731  1520  1520 E AndroidRuntime:   at android.app.ActivityThread.deliverResults(ActivityThread.java:3699)
 06-08 13:16:06.731  1520  1520 E AndroidRuntime:   at android.app.ActivityThread.handleSendResult(ActivityThread.java:3742)
 06-08 13:16:06.731  1520  1520 E AndroidRuntime:   at android.app.ActivityThread.-wrap16(ActivityThread.java)
 06-08 13:16:06.731  1520  1520 E AndroidRuntime:   at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1393)
 06-08 13:16:06.731  1520  1520 E AndroidRuntime:   at android.os.Handler.dispatchMessage(Handler.java:102)
 06-08 13:16:06.731  1520  1520 E AndroidRuntime:   at android.os.Looper.loop(Looper.java:148)
 06-08 13:16:06.731  1520  1520 E AndroidRuntime:   at android.app.ActivityThread.main(ActivityThread.java:5417)
 06-08 13:16:06.731  1520  1520 E AndroidRuntime:   at java.lang.reflect.Method.invoke(Native Method)
 06-08 13:16:06.731  1520  1520 E AndroidRuntime:   at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
 06-08 13:16:06.731  1520  1520 E AndroidRuntime:   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
 06-08 13:16:06.731  1520  1520 E AndroidRuntime: Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'void java.io.InputStream.close()' on a null object reference
 06-08 13:16:06.731  1520  1520 E AndroidRuntime:   at com.example.phone.PhoneActivity.retrieveContactPhoto(PhoneActivity.java:67
  

来自Github的推荐链接:https://gist.github.com/evandrix/7058235                 任何人都可以帮忙吗?在此先感谢..

2 个答案:

答案 0 :(得分:0)

我认为错误就在这里:

try
             {
               InputStream inputStream = ...

                    }
              assert inputStream != null; // here
              inputStream.close();

             }  catch (IOException e) {
                 e.printStackTrace();
                 } 
               }

尝试在oncreate()之前使用所有其他变量声明InputStream inputStream;

答案 1 :(得分:0)

试试这段代码

private void readContacts() {

    StringBuffer sb = new StringBuffer();
    sb.append("......Contact Details.....");
    ContentResolver cr = getContentResolver();
    Cursor cur = cr.query(ContactsContract.Contacts.CONTENT_URI, null, null, null, null);
    String phone = null;
    String emailContact = null;
    String emailType = null;
    String image_uri = "";
    Bitmap bitmap = null;
    try {
        if (cur.getCount() > 0) {
            while (cur.moveToNext()) {
                try {
                    String id = cur.getString(cur.getColumnIndex(ContactsContract.Contacts._ID));
                    String name = cur.getString(cur.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));

                    image_uri = cur.getString(cur.getColumnIndex(ContactsContract.CommonDataKinds.Phone.PHOTO_URI));
                    if (Integer.parseInt(cur.getString(cur.getColumnIndex(ContactsContract.Contacts.HAS_PHONE_NUMBER))) > 0) {
                                sb.append("\n Contact Name:" + name);



                        Cursor pCur = cr.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, ContactsContract.CommonDataKinds.Phone.CONTACT_ID + " = ?", new String[] { id }, null);
                        while (pCur.moveToNext()) {
                            phone = pCur.getString(pCur.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
                            int type = pCur.getInt(pCur.getColumnIndex(Phone.TYPE));
                            int label = pCur.getInt(pCur.getColumnIndex(Phone.LABEL));


                            String type_new = (String) Phone.getTypeLabel(getResources(), type, "");
                            String label_new = (String) Phone.getTypeLabel(getResources(), label, "");



                            sb.append("\n Phone number:" + phone);
                        }
                        pCur.close();
                        Cursor emailCur = cr.query(ContactsContract.CommonDataKinds.Email.CONTENT_URI, null, ContactsContract.CommonDataKinds.Email.CONTACT_ID + " = ?", new String[] { id }, null);
                        while (emailCur.moveToNext()) {
                            emailContact = emailCur.getString(emailCur.getColumnIndex(ContactsContract.CommonDataKinds.Email.DATA));
                            emailType = emailCur.getString(emailCur.getColumnIndex(ContactsContract.CommonDataKinds.Email.TYPE));
                            sb.append("\nEmail:" + emailContact + "Email type:" + emailType);
                                }
                        emailCur.close();

                        String orgWhere = ContactsContract.Data.CONTACT_ID + " = ? AND " + ContactsContract.Data.MIMETYPE + " = ?";
                        String[] orgWhereParams = new String[] { id, ContactsContract.CommonDataKinds.Organization.CONTENT_ITEM_TYPE };
                        Cursor orgCur = cr.query(ContactsContract.Data.CONTENT_URI, null, orgWhere, orgWhereParams, null);
                        if (orgCur.moveToFirst()) {
                            String orgName = orgCur.getString(orgCur.getColumnIndex(ContactsContract.CommonDataKinds.Organization.DATA));
                            String title = orgCur.getString(orgCur.getColumnIndex(ContactsContract.CommonDataKinds.Organization.TITLE));




                        }
                        orgCur.close();


                    }
                    if (image_uri != null) {
                        // System.out.println(Uri.parse(image_uri));
                        try {
                            bitmap = MediaStore.Images.Media.getBitmap(this.getContentResolver(), Uri.parse(image_uri));
                            sb.append("\n Image in Bitmap:" + bitmap);
                            // System.out.println(bitmap);
                        } catch (FileNotFoundException e) {
                            e.printStackTrace();
                        } catch (IOException e) {
                            e.printStackTrace();
                        }
                    }
                    sb.append("\n........................................");
                } catch (Exception ex) {

                }

            }
            }
    } catch (Exception ex) {

    }

}