The Context
My application architecture is very similar to the default called "Swipe Views" when you create a new android project. One activity, 3 Fragments, you can swipe through them. It uses the support library. everything is up to date. The device I'm testing on is a galaxy nexus running android 4.1.2 Support library r11, and SDK versions min=14 target=16
The Problem
The second Fragment holds a bunch of EditText which contain various numerical values read from sharedPreferences. When the Activity is first created, everything is fine the EditViews all have their correct value, but if I modify one of the values to, for instance 555, and then I rotate the device, all the EditText are now displaying 555 !
There is only one setText in the whole program and it is displayed later in this post, I tried to remove it, as expected when starting the activity all the EditTexts display the default value (666), I modify one and rotate the device, they all display the new value!
The details
One activity with a SectionsPagerAdapter, a ViewPager and several fragments for each page.
In one of the fragments (ConfigurationFragment) in the onViewCreated
method I dynamically create lines with and EditText
and an ImageButton
.
those lines are actually in a layout (xml file) which I inflate for each line to add, then I get the editText and call setText to set it's value to what it should be.
onViewCreated method:
public void onViewCreated(View view, Bundle savedInstanceState)
{
// populate ports list on view creation
ArrayList<String> listenPorts = mServerManagerThread.getListenPorts();
for (String port : listenPorts)
{
EditText v = ((EditText) addListenPortItem().getChildAt(0));
v.setText(port);
}
super.onViewCreated(view, savedInstanceState);
}
naturally the method getListenPorts
returns the same list each time it is called (on startup and when the device is rotated)
what addListenPortItem basically does:
// Instantiate a new "row" view.
final ViewGroup newView = (ViewGroup) LayoutInflater.from(viewGroup.getContext()).inflate(itemResource,
viewGroup, false);
// Set a click listener for the "X" button in the row that will remove
// the row.
newView.findViewById(R.id.delete_button).setOnClickListener(
new OnRemoveClickListener(mContainer, viewGroup, newView, emptyListTextResource));
viewGroup.addView(newView);
viewGroup is a linearLayout which will hold the newly created views itemResource is the following layout
layout of one line:
<?xml version="1.0" encoding="utf-8"?>
<!--
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" >
-->
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="?android:listPreferredItemHeightSmall"
android:layout_marginTop="8dp"
android:divider="?android:dividerVertical"
android:dividerPadding="8dp"
android:gravity="right"
android:orientation="horizontal"
android:showDividers="middle" >
<EditText
android:id="@+id/editPort"
android:layout_width="100dp"
android:layout_height="wrap_content"
android:ems="10"
android:inputType="number"
android:text="666" >
</EditText>
<ImageButton
android:id="@+id/delete_button"
style="?android:attr/borderlessButtonStyle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:contentDescription="@string/action_remove_item"
android:src="@drawable/content_remove" />
</LinearLayout>
any idea?
I've been staring at this bug for a couple hours now and I really have no clue what's going on ... I'm starting to suspect a bug in the SDK or the support library, but I know from experience the bug is most often in my brain :)