dbm dbm - 1 year ago 84
Android Question

android.content.res.Resources$NotFoundException when programmatically setting android.R.attr.listChoiceIndicatorMultiple

I'm trying to programmatically set the "android:checkMark" attribute on CheckedTextView items I have in a ListView. When running my application I get the following exception:

android.content.res.Resources$NotFoundException: Resource ID #0x101021a

The resource with ID #0x101021a corresponds to android.R.attr.listChoiceIndicatorMultiple, which is exactly the value I am passing to my CheckedTextView:


Isn't this the way to do it from Java? I tried (and succeeded) to trigger the desired behaviour from XML layout:

android:id="@android:id/text1" />

The thing is that I don't know at compile time if it should be




Hence, I need to set these values at runtime.

Answer Source

I would guess that programmatically setting an attribute reference rather than a Drawable reference is the problem.

In this case, android.R.attr.listChoiceIndicatorMultiple corresponds to android.R.drawable.btn_check, so you could try setting that instead.

Or, if you can obtain the attributes, you could call getDrawable() on the TypedArray to dynamically fetch the Drawable value.

Since the value of listChoiceIndicatorMultiple depends on the current theme, you need to ask the current theme to resolve the reference:

int[] attrs = { android.R.attr.listChoiceIndicatorMultiple };
TypedArray ta = getContext().getTheme().obtainStyledAttributes(attrs);
Drawable indicator = ta.getDrawable(0);

Be sure to cache the drawables, rather than performing this manoeuvre for every item in your ListView.

That's just a very basic example, but it works with the default theme. I'm not exactly sure what needs to be done to resolve attrs fully if you have a custom theme.

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