एंड्रॉइड एकाधिक संपर्क भेजने के लिए एकल .vcf फ़ाइल में संलग्न हैं और मेल को भेजते हैं?

Question

मेरे आवेदन में, कई संपर्क एकल से जुड़े होते हैं .vcf फ़ाइल और वह फ़ाइल मेल पर भेजी गई है, लॉग बिल्ली में सभी संपर्क डेटा डिस्प्ले को आजमाएं, लेकिन एकल .vcf फ़ाइल से जुड़े सभी डेटा भेजने में असमर्थ ?

किसी को भी मेरी मदद के बारे में कोई विचार है, कृपया।

यहाँ मेरी कोड

public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.main); 

    vCard = new ArrayList<String>();     

    Log.i("TAG one", "vfile" +vfile); 
    vfile = "Contacts" + "_" + System.currentTimeMillis() + ".vcf"; 

    /** 
    * This Function For Vcard And here i take one Array List in Which i 
    * store every Vcard String of Every Contact Here i take one Cursor and 
    * this cursor is not null and its count>0 than i repeat one loop up to 
    * cursor.getcount() means Up to number of phone contacts. And in Every 
    * Loop i can make vcard string and store in Array list which i declared 
    * as a Global. And in Every Loop i move cursor next and print log in 
    * logcat. 
    * */ 
    getVcardString();   
}  

private void getVcardString() { 

    cursor = getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, null, null, null); 
    Log.i("TAG two", "cursor" +cursor); 
    if (cursor != null && cursor.getCount() > 0) { 
     cursor.moveToFirst(); 
     Log.i("Number of contacts", "cursorCount" +cursor.getCount());   

     for (int i = 0; i < cursor.getCount(); i++) {      
      get(cursor);      
      Log.i("TAG send contacts", "Contact " + (i + 1) + "VcF String is" + vCard.get(i));      
      cursor.moveToNext();           
     }   

     StringBuffer s = new StringBuffer(); 
     s.append(vCard.toString());     
     string = s.toString();       
     file = new File(string);   

    // Log.i("s", ""+s); 
    // Log.i("string", ""+string); 
     Log.i("file", ""+file);    

    } else { 
     Log.i("TAG", "No Contacts in Your Phone"); 
    }   
}  

public void get(Cursor cursor) { 

    String lookupKey = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.LOOKUP_KEY)); 
    Log.i("lookupKey", ""+lookupKey); 
    Uri uri = Uri.withAppendedPath(ContactsContract.Contacts.CONTENT_VCARD_URI, lookupKey);  

    try { 
     AssetFileDescriptor fd = this.getContentResolver().openAssetFileDescriptor(uri, "r");   

     FileInputStream fis = fd.createInputStream(); 
     byte[] buf = new byte[(int) fd.getDeclaredLength()]; 
     fis.read(buf); 
     String vcardstring= new String(buf);   

     String storage_path = Environment.getExternalStorageDirectory().toString() + File.separator + vfile; 
     FileOutputStream mFileOutputStream = new FileOutputStream(storage_path, true); 
     mFileOutputStream.write(vcardstring.toString().getBytes()); 

     vCard.add(storage_path);    

    } catch (Exception e1) {    
     e1.printStackTrace(); 
    } 
}  

private void data() {  

    File filelocation = file;  
    Intent sharingIntent = new Intent(Intent.ACTION_SEND); 
    sharingIntent.setType("vnd.android.cursor.dir/email");  
    sharingIntent.setType("application/x-vcard");    
    sharingIntent.putExtra(Intent.EXTRA_STREAM, Uri.parse("file://"+filelocation)); 
    startActivity(Intent.createChooser(sharingIntent, "Send email"));    
} 
}  

Answer 1

अंत में मेरी समस्या यह

 public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.main);  

    mContext = this; 

    button = (Button) findViewById(R.id.send);   
    button.setOnClickListener(new OnClickListener() {   
     public void onClick(View v) {   
      data(); 
     } 
    });      

    /** 
    * This Function For Vcard And here i take one Array List in Which i 
    * store every Vcard String of Every Contact Here i take one Cursor and 
    * this cursor is not null and its count>0 than i repeat one loop up to 
    * cursor.getcount() means Up to number of phone contacts. And in Every 
    * Loop i can make vcard string and store in Array list which i declared 
    * as a Global. And in Every Loop i move cursor next and print log in 
    * logcat. 
    * */ 
    getVcardString();   
}  

public static void getVcardString() { 

    String path = null;  
    String vfile = null; 

    vfile = "Contacts.vcf";   
    Cursor phones = mContext.getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, 
        null, null, null); 

    phones.moveToFirst(); 
    Log.i("Number of contacts", "cursorCount" +phones.getCount()); 
    for(int i =0;i<phones.getCount();i++) {  

     String lookupKey = phones.getString(phones.getColumnIndex(ContactsContract.Contacts.LOOKUP_KEY)); 
     Log.i("lookupKey", " " +lookupKey); 
     Uri uri = Uri.withAppendedPath(ContactsContract.Contacts.CONTENT_VCARD_URI, lookupKey); 
     AssetFileDescriptor fd; 

     try { 
      fd = mContext.getContentResolver().openAssetFileDescriptor(uri, "r"); 
      FileInputStream fis = fd.createInputStream(); 
      byte[] buf = new byte[(int) fd.getDeclaredLength()]; 
      fis.read(buf); 
      String VCard = new String(buf);   

      path = Environment.getExternalStorageDirectory().toString() + File.separator + vfile; 
      FileOutputStream mFileOutputStream = new FileOutputStream(path, true); 
      mFileOutputStream.write(VCard.toString().getBytes());  

      phones.moveToNext();    

      filevcf = new File(path); 
      Log.i("file", "file" +filevcf); 

     }catch(Exception e1) { 
      e1.printStackTrace(); 
     } 
    }  
    Log.i("TAG", "No Contacts in Your Phone");   
} 

protected void data() {    
    File filelocation = filevcf ;  
    Intent sharingIntent = new Intent(Intent.ACTION_SEND); 
    sharingIntent.setType("vnd.android.cursor.dir/email");  
    sharingIntent.setType("application/x-vcard");  
    sharingIntent.putExtra(Intent.EXTRA_EMAIL, "mail@gmail.com");   
    sharingIntent.putExtra(Intent.EXTRA_STREAM, Uri.parse("file://"+filelocation.getAbsolutePath())); 
    startActivity(Intent.createChooser(sharingIntent, "Send email"));    
} 

Answer 2

मैं सफलतापूर्वक निम्नलिखित परीक्षण किया है। आपके कोड में परिवर्तन "परिवर्तन:" से शुरू होने वाली टिप्पणियों के साथ इंगित किए जाते हैं। अपने मेनिफेस्ट में android.permission.WRITE_EXTERNAL_STORAGE रखना न भूलें।

public class MainActivity extends Activity { 
    private String vfile; 
    private Cursor cursor; 
    private ArrayList<String> vCard; 
    private String string; 
    private File file; 
    private String storage_path; //CHANGE: storage_path global 

    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 
     vCard = new ArrayList<String>();     

     Log.i("TAG one", "vfile" + vfile); 
     vfile = "Contacts" + "_" + System.currentTimeMillis() + ".vcf"; 

    /** 
    * This Function For Vcard And here i take one Array List in Which i 
    * store every Vcard String of Every Contact Here i take one Cursor and 
    * this cursor is not null and its count>0 than i repeat one loop up to 
    * cursor.getcount() means Up to number of phone contacts. And in Every 
    * Loop i can make vcard string and store in Array list which i declared 
    * as a Global. And in Every Loop i move cursor next and print log in 
    * logcat. 
    * */ 
     getVcardString();  
     data(); //CHANGE: now calling data to send vCard intent 
    } 

    private void getVcardString() { 

     cursor = getContentResolver(). 
     query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, 
     null, null, null, null); 
     Log.i("TAG two", "cursor" +cursor); 
     if (cursor != null && cursor.getCount() > 0) { 
     cursor.moveToFirst(); 
     Log.i("Number of contacts", "cursorCount" +cursor.getCount());   

     for (int i = 0; i < cursor.getCount(); i++) {      
      get(cursor);      
      Log.i("TAG send contacts", 
      "Contact " + (i + 1) + "VcF String is" + vCard.get(i));      
      cursor.moveToNext();           
     }   

//   StringBuffer s = new StringBuffer(); CHANGE: not needed 
//   s.append(vCard.toString());     
//   string = s.toString();       
//   file = new File(string); //CHANGE: this is not what file should be   

     } else { 
      Log.i("TAG", "No Contacts in Your Phone"); 
     }   
    }  

    public void get(Cursor cursor) { 

     String lookupKey =  cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.LOOKUP_KEY)); 
     Log.i("lookupKey", ""+lookupKey); 
     Uri uri = Uri.withAppendedPath(ContactsContract.Contacts.CONTENT_VCARD_URI, lookupKey);  

     try { 
      AssetFileDescriptor fd = this.getContentResolver().openAssetFileDescriptor(uri, "r");   

      FileInputStream fis = fd.createInputStream(); 
      byte[] buf = new byte[(int) fd.getDeclaredLength()]; 
      fis.read(buf); 
      String vcardstring= new String(buf);  
      vCard.add(vcardstring); //CHANGE: added this, so log statement in above method doesn't generate error 

//   String storage_path = Environment.getExternalStorageDirectory().toString() + File.separator + vfile; 
      //CHANGE: this is the path we need to get file for intent: 
      storage_path = getExternalFilesDir(null).toString() + File.separator + vfile;    
      Log.i("MainActivity", storage_path); 
      //CHANGE: this will create the file we need: 
      file = new File(getExternalFilesDir(null), vfile); 
      file.createNewFile(); //CHANGE 
      //CHANGE: this will create the stream we need: 
      FileOutputStream mFileOutputStream = new FileOutputStream(file, true); 
      mFileOutputStream.write(vcardstring.toString().getBytes()); 
      mFileOutputStream.close(); //don't forget to close 

    //   vCard.add(storage_path); //CHANGE: not needed   

     } catch (Exception e1) {    
      e1.printStackTrace(); 
     } 
    }  

    private void data() {  
    //  File filelocation = file; //CHANGE: not what we need  
     Intent sharingIntent = new Intent(Intent.ACTION_SEND); 
     sharingIntent.setType("vnd.android.cursor.dir/email");  
     sharingIntent.setType("application/x-vcard"); 
     //CHANGE: using correct path: 
     sharingIntent.putExtra(Intent.EXTRA_STREAM, Uri.parse(storage_path)); 
     startActivity(Intent.createChooser(sharingIntent, "Send email"));    
    } 

}