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POCheckBoxes in ListView disappear when the screen rotates
 

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    <p>What my application <strong>first</strong> does is it loads <code>ListView</code> whose items have <strong>invisible <code>CheckBoxes</code> by setting its visibility <code>View.Gone</code></strong>. When the user tabs a menu button then it will turn on and off the <code>CheckBox</code> visibility and some other layouts. Below is the code, I removed some unnecessary parts:</p> <pre><code>private void editmodeSwitch(boolean flag){ // get topbar, bottombar, and bottombar2 LinearLayout topbar = (LinearLayout) findViewById(R.id.task_topbar_linearLayout); LinearLayout bottombar = (LinearLayout) findViewById(R.id.task_bottombar1_linearlayout); LinearLayout bottombar2 = (LinearLayout) findViewById(R.id.task_bottombar2_linearlayout); if(flag){ isEditmodeOn = true; // make topbar and bottombar2 visilble, but bottombar gone topbar.setVisibility(View.VISIBLE); bottombar.setVisibility(View.GONE); bottombar2.setVisibility(View.VISIBLE); // make checkboxes visible in listview visible as well for(int i=0; i&lt;listView.getChildCount(); i++){ LinearLayout ll = (LinearLayout) listView.getChildAt(i); CheckBox cb = (CheckBox) ll.findViewById(R.id.task_row_checkBox1); cb.setVisibility(View.VISIBLE); } } else{ isEditmodeOn = false; topbar.setVisibility(View.GONE); bottombar.setVisibility(View.VISIBLE); bottombar2.setVisibility(View.GONE); // set each checkbox false and its visibility gone for(int i=0; i&lt;listView.getChildCount(); i++){ LinearLayout ll = (LinearLayout) listView.getChildAt(i); CheckBox cb = (CheckBox) ll.findViewById(R.id.task_row_checkBox1); cb.setVisibility(View.GONE); cb.setChecked(false); } } } </code></pre> <p>It works fine but the problem is the application doesn't work when the screen rotates(changes the screen orientation). Everything worked fine as it displayed some layouts but only <code>CheckBoxes in list items. Below is the code in</code>onCreate()`:</p> <pre><code>@Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.task_layout); initialize(); loadDB(); updateListAdapter(list_title, list_date); // in case of screen rotation if(savedInstanceState != null){ isEditmodeOn = savedInstanceState.getBoolean(EDITMODE_CHECK); isItemChecked = savedInstanceState.getBoolean(ITEM_CHECK); if(isEditmodeOn){ if(!isItemChecked){ Log.i(tag, "item NOT checked"); editmodeSwitch(true); } else{ //this is something different so please don't mind deditmodeSwitch(savedInstanceState.getBooleanArray(LIST_CB_CHECK)); } } } } @Override protected void onSaveInstanceState(Bundle outState) { super.onSaveInstanceState(outState); // save values for rotation outState.putBoolean(EDITMODE_CHECK, isEditmodeOn); outState.putBoolean(ITEM_CHECK, isItemChecked); outState.putBooleanArray(LIST_CB_CHECK, list_cb_check); } @Override protected void onRestoreInstanceState(Bundle savedInstanceState) { super.onRestoreInstanceState(savedInstanceState); Log.i(tag, "you're in onRestoreInstanceState()"); // in case of screen rotation if(savedInstanceState != null){ isEditmodeOn = savedInstanceState.getBoolean(EDITMODE_CHECK); isItemChecked = savedInstanceState.getBoolean(ITEM_CHECK); if(isEditmodeOn){ if(!isItemChecked){ Log.i(tag, "item NOT checked"); editmodeSwitch(true); } else{ // this is for something else so please ignore this part editmodeSwitch(savedInstanceState.getBooleanArray(LIST_CB_CHECK)); } } } </code></pre> <p>What I guessed is <strong>the <code>ListView</code> is being loaded at the end</strong>. Therefore, even if the code in <code>onCreate()</code> makes <code>CheckBoxes</code> visible, the <code>CheckBoxes</code> will become invisible again as its initialization in xml will do so. However, I'm stuck here and need your advice to solve this problem. Can anyone help me?</p> <p>Just in case, below is the checkbox code of layout xml file for getview.</p> <pre><code>&lt;CheckBox android:id="@+id/task_row_checkBox1" android:gravity="right" android:layout_width="wrap_content" android:layout_height="wrap_content" android:visibility="gone" /&gt; </code></pre>
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    1. COyou are not saving checkbox states in onSaveInstanceState before retriveing it. so first save states in onSaveInstanceState by override `onSaveInstanceState`
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    2. COSorry Imran. I'll put my code in onSaveInstanceState() in a minute. Thanks for your advice!
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