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The content of the adapter has changed but ListView ... ¿¡·¯ ÀϹÝÀû ÇØ°á¹ý.
±Û¾´ÀÌ : ±èº´ÁÖ                   ³¯Â¥ : 2013-04-16 (È­) 16:39 Á¶È¸ : 15327
¿À·ù³»¿ëÀº 
java.lang.IllegalStateException: The content of the adapter has changed but ListView did not receive a notification. Make sure the content of your adapter is not modified from a background thread, but only from the UI thread.

ÀΰÍÀ» ±âÁØÀ¸·Î ÇÕ´Ï´Ù.

±âº»ÀûÀ¸·Î ¾Èµå·ÎÀ̵å´Â  1thread¿¡ ÇÏÀ§ threadµé(ºÎ¸ð-ÀÚ½Ä ¾²·¹µå)·Î µ¿ÀÛÇϸç UIº¯°æÀº ¹Ýµå½Ã ºÎ¸ð, Áï ÇöÀçÀÇ mainThread¿¡ ÀÇÇØ º¯°æµÇ¾î¾ß µË´Ï´Ù.

¸ÞÀξ²·¹µå ÀÌ¿ÜÀÇ °÷¿¡¼­ ´Ù¸¥ thread¸¦ »ý¼ºÇÏ¿© ÀÌ°÷¿¡¼­ ó¸®ÇÏ·Á°íÇϸé 100%¿À·ù¸¦ ¹ß»ý½Ãŵ´Ï´Ù.

¿¹¸¦µé¾î thread¸¦ ÀÌ¿ëÇØ ¸®½ºÆ®¸¦ °»½ÅÇÑ´Ù°íÇսôÙ. À̶§, adapter.notifyDataSetChanged()¸¦ »ç¿ëÇÏ°Ô µÇ¸é À§ÀÇ ¿¡·¯Äڵ带 ¸¸³ª°Ô µÇ½Ç °Ì´Ï´Ù.

ÇØ°áÇÏ´Â °¡Àå ½¬¿î¹æ¹ýÀ¸·Î´Â runOnUiThread¸¦ ÀÌ¿ëÇÏ¿© ÇÏ´Â ¹æ½Ä°ú handler.post·Î ÄÁÆ®·Ñ ÇÏ´Â ¹æ½ÄÀÌ ÀÖ½À´Ï´Ù.

runOnUiThread´Â

runOnUiThread(new Runnable() {

@Override

public void run() {

// TODO Auto-generated method stub

adapter.notifyDataSetChanged();

}

});


handler´Â 


handler.postDelayed(new Runnable() {

@Override

public void run() {

// TODO Auto-generated method stub

try{

adapter.notifyDataSetChanged();

    }catch (Exception e) {

// TODO: handle exception

    }

 }

 }, 100);


µÎ°¡Áö ¹æº÷ÀÔ´Ï´Ù.


¹°·Ð °Ü¿ì ÀÌ°ÍÀ» ¼³¸íÇÏ°íÀÚ ±ÛÀ»¾´°Ç ¾Æ´ÏÁö¸¸ ±âº»ÀûÀÎ »ç¿ëÀº À§¿Í°°´Ù´Â°ÍÀÌÁÒ.


º»·ÐÀ¸·Î µ¹¾Æ°¡¼­..


ºÐ¸í ¾²·¹µå¾È¿¡¼­ À§ÀÇ runOnUiThread ȤÀº Handler·Î ó¸®Çؼ­ °»½ÅÇصµ À§ÀÇ ¿¡·¯¸¦ ¶Ç ¹ñ´Â°æ¿ì°¡


ÀÖ½À´Ï´Ù. ¸¹Àº °³¹ßÀÚµéÀÌ ÀÚÁÖ ¹üÇÏ´Â ¿À·ùÁß¿¡ Çϳª°¡ ¹Ù·Î ÀÌ ºÎºÐÀÔ´Ï´Ù.


À§ÀÇ µÎ°¡Áö¹æ¹ýÀ¸·Î Çߴµ¥µµ ¸¸¾à À§ÀÇ ¿À·ù°¡ ¹ß»ýÇÑ´Ù¸é


´ÙÀ½À» È®ÀÎÇغ¸½Ã±â ¹Ù¶ø´Ï´Ù.


1.ListViewÀÇ °ªÀÌ º¯°æµÇ¾î ¼öÁ¤ÇÏ°í adapter.notifyDataSetChanged(); »ç¿ëÇÏ°í

  ¹Ù·Î ¸®½ºÆ® ½ºÅ©·ÑÀ» ¼öÁ¤ÇÔ.


2. adapter.notifyDataSetChanged();¸¦ »ç¿ëÇÏ°í ¾Æ·¡¿¡ Çڵ鷯·Î Çѹø´õ ListView½ºÅ©·Ñ º¯°æ.


1¹øÀÇ °æ¿ì´Â ¿ì¼± list.setSelection°ú adapter.notifyDataSetChanged();´Â


°°ÀÌ »ç¿ëÇÒ ¼ö ¾ø´Ù´Â°É ¸»Çص帮°Ú½À´Ï´Ù.


¹°·Ð °°ÀÌ »ç¿ëÇÒ ¼ö´Â ÀÖ½À´Ï´Ù. ´Ù¸¸ ¾îµªÅÍÀÇ º¯°æÀÌ ¾ðÁ¦³¡³ª´ÂÁöµµ ¸ð¸£´Âµ¥ .setselectionÀ» ÀÌ¿ëÇØ 


½ºÅ©·ÑÀ» ¼öÁ¤Çϸé Áߺ¹Çؼ­ getView¸¦ ¶Ç ºÒ·¯¿Í À§ÀÇ ¿¡·¯¸¦ ¹ñ½À´Ï´Ù.


°°Àº adapter.notifyDataSetChanged();¸¦ ¿©·¯¹ø ºÎ¸£´Â°Ç »ó°ü¾ø½À´Ï´Ù. ´Ù¸¸ adapter.notifyDataSetChanged();Àº °ªÀÌ º¯°æµÇ¾îÀÖÀ»°æ¿ì ÀÛµ¿ÇÏÁö¸¸ list.setSelectionÀº 


¹«Á¶°Ç ÀÛµ¿ÇÕ´Ï´Ù. Â÷ÀÌÁ¡ÀÌ Å©¹Ç·Î ¹Ýµå½Ã ±¸ºÐÇÏ¿© »ç¿ëÇϽñ⠹ٶø´Ï´Ù.


µÎ¹ø°·Î´Â runonuithread¾È¿¡ ¶ÇÇѹø handler·ÎÀÇ ÄÁÆ®·ÑÀÔ´Ï´Ù.


runon¿¡¼­ adapter.notifyDataSetChanged(); ¸¦ ºÎ¸£°í handler¿¡¼­ setSelection ȤÀº 

¸®½ºÆ®½ºÅ©·Ñ º¯°æÀ» ÇÏ½Ç °æ¿ì ¿¡·¯°¡ ¹ß»ýµÉ¼ö ÀÖ½À´Ï´Ù.


³»¿ëÀÌ Ãß°¡µÇ°Å³ª ¼öÁ¤µÈ °ÍÀ» º¸¿©ÁÖ°í ½Í´Ù¸é ±×³É ´ÜÇѹøÀÇ adapter.notifyDataSetChanged();


¸¦ ºÎ¸£¸éµÇ°í ¸¸¾à °»½Å+ ½ºÅ©·ÑÀ» ÇÏ°í ½Í´Ù¸é ´Ü¼øÈ÷ setSelection¸¸ ºÒ·¯ÁÖ¸é µË´Ï´Ù.


¾Æ¹«ÂÉ·Ï ¸®½ºÆ®ºä °»½ÅÇÏ´Ù°¡ À§ÀÇ ¹®Á¦°¡ °è¼Ó ¹ß»ýÇÑ´Ù¸é ¾îµð¼±°¡ Áߺ¹ °»½Å ¹× ¸®½ºÆ® ½ºÅ©·Ñ ÄÁÆ®·ÑÇÏ°í 


ÀÖ´Â ºÎºÐÀº ÀÚÁ¦ÇϽø鼭 ÀÛ¾÷ÇϽñ⠹ٶø´Ï´Ù.


* ±ÛÀ» µî·ÏÇϽǶ§ ²À ÇÊ¿äÇÑ °æ¿ì°¡ ¾Æ´Ï¸é °³ÀÎÁ¤º¸¸¦ ³²±âÁö ¸¶¼¼¿ä ^^ (¿¬¶ôó,À̸ÞÀÏÁÖ¼Ò,Áֹεî·Ï¹øÈ£ µî)




±èº´ÁÖ ´ÔÀÇ Tip&Tech ÃÖ½Å±Û [´õº¸±â]


   

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