android2.1获得联系人信息

public void getContact(){    	 //获得所有的联系人    	Cursor cur = getContentResolver().query(ContactsContract.Contacts.CONTENT_URI, null, null, null, null);    	//循环遍历    	if (cur.moveToFirst()) {    		int idColumn  = cur.getColumnIndex(ContactsContract.Contacts._ID);        		int displayNameColumn = cur.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME);    		do {    		    //获得联系人的ID号    		   String contactId = cur.getString(idColumn);    		   //获得联系人姓名    		   String disPlayName = cur.getString(displayNameColumn);    		   //查看该联系人有多少个电话号码。如果没有这返回值为0    		   int phoneCount = cur.getInt(cur.getColumnIndex(ContactsContract.Contacts.HAS_PHONE_NUMBER));    		   if(phoneCount>0){    			   //获得联系人的电话号码    		   Cursor phones = getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI,null,ContactsContract.CommonDataKinds.Phone.CONTACT_ID+ " = " + contactId, null, null);    		   if(phones.moveToFirst()){    			   do{    				   //遍历所有的电话号码    				   String phoneNumber= phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));    				   System.out.println(phoneNumber);    			   }while(phones.moveToNext());    		   }    		       		   }            } while (cur.moveToNext());    	}     }    在联系人的电话号码中有很多种，如果只想获得手机号码。代码如下：  Cursor phones = mContext.getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI,null,ContactsContract.CommonDataKinds.Phone.CONTACT_ID+ " = " + contactId +" and "+ContactsContract.CommonDataKinds.Phone.TYPE+"="+ContactsContract.CommonDataKinds.Phone.TYPE_MOBILE, null, null);