English: Food2u running on an Android phone. Español: Food2u funcionando en un teléfono Android. (Photo credit: Wikipedia)
Discovery one for today: setting table id as autoincrement crashes code. According to docs if field is declared as primary key it will autoincrement by itself. I wonder, why did they decide to crash it, they could have ignored the key word. Anyhow.
The next task is to create categories for input. Design considerations:
Input will be dropdown in the Edit screen with predefined enums. How would I show groups on a front screen? List with categories would be nice. I’d to reserve tabs for implementation of multi users.
Let’s explore lists with categories.
There is ExpandableListView
Replaced my old
<ListView
android:id=”@android:id/list”
android:layout_width=”match_parent”
android:layout_height=”289dp” >
</ListView>
with
<ExpandableListView
android:id=”@android:id/list”
android:layout_width=”match_parent”
android:layout_height = “match_parent”
android:background=”#00FF00″
android:layout_weight=”1″
android:drawSelectorOnTop=”false”>
</ExpandableListView >
I have to replace ListAdapter with ExpandableListAdapter in java code. reading http://developer.android.com/reference/android/widget/SimpleExpandableListAdapter.html
This example seems to be what I need
http://www.edumobile.org/android/android-game-programming/simple-expandable-list-example/
Lunch stop. Stuck on creating this adapter. WTF is groupFrom and groupTo?
After 2 h successfully implemented expandable adapter. Took while to understand what these maps are but I got it!
After my expandable list started to work each time keyboard comes up at a startup. Found a fix by adding this line to manifest as property of this activity android:windowSoftInputMode=”stateHidden”.
And
this.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN); orgetWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_HIDDEN);
Tomorrow is all about stabilization.
Other generally useful
http://developer.android.com/distribute/googleplay/publish/preparing.html
Found info on testing . people say You should have three (3) different devices:
1. One mobile phone (small screen) with Android 2.3 (e.g. HTC Wildfire)
2. One mobile phone (small screen) with Android 4.0+ (e.g. Samsung galaxy s3, s4)
3. One tablet (big screen > 7”) (e.g. Samasung galaxy Note 10.1)
ANother example of expandable list adapter but even less understandable
Learn Android Today 