Wednesday, June 8, 2011

So you need to change the text size of simple_list_item_single_choice...

I feel you.

I tried for a month straight to call the checkedtextview in the android standard layout and resize the text. It never let me. I felt like a idiot. And now that I've figured it out, I know that it is more than just a feeling.

And so I'm posting it here, in the event that I actually forget how to do this later on. Because.. you know... I'm an idiot.

I went and copied the xml from the api demo and pasted it into a new .xml file(step 1). I accessed the text size and adjusted it thusly (step 2). Then I changed the java code to replace the simple_list_item_single_choice with my own custom row layout (step 3). Facepalmed for about two hours (step 4).

my_listitem_singlechoice.xml (i just chaged "textAppearance" attribute but I'm sure you can do other stuff to it too) :


<CheckedTextView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@android:id/text1"
    android:layout_width="match_parent"
    android:layout_height="?android:attr/listPreferredItemHeight"
    android:textAppearance="?android:attr/textAppearanceSmall"
    android:gravity="center_vertical"
    android:checkMark="?android:attr/listChoiceIndicatorSingle"
    android:paddingLeft="6dip"
    android:paddingRight="6dip"
/>



my_java_with_singlechoice.java (this should look somewhat familiar) :


        ListView lv = this.getListView();
MyListAdapter = new ArrayAdapter<String>(this, R.layout.my_listitem_singlechoice, myArrayList);
lv.setAdapter(MyListAdapter );
lv.setChoiceMode(ListView.CHOICE_MODE_SINGLE);

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