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Asked: 2026-06-13T13:49:33+00:00

I have extended a TextView to also implement Checkable . I have not touched

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I have extended a TextView to also implement Checkable. I have not touched any TextView stuff, except for onCreateDrawableState. Furthermore, I just implemented the Checkable methods. (abridged for clarity.)

public class CheckableTextView extends TextView implements Checkable {

public CheckableTextView(Context context, AttributeSet attrs) {
    super(context, attrs);
}

@Override
protected int[] onCreateDrawableState(int extraSpace) {
    final int[] drawableState = super.onCreateDrawableState(extraSpace + 1);
    if (isChecked()) {
        mergeDrawableStates(drawableState, CheckedStateSet);
    }
    return drawableState;
}

It compiles fine on ICS, but in Android 2.3 I get a pretty weird error when the program tried to inflate this view.

10-31 00:51:20.414: E/AndroidRuntime(601): FATAL EXCEPTION: main
10-31 00:51:20.414: E/AndroidRuntime(601): android.view.InflateException: Binary XML file line #3: Error inflating class net.blackenvelope.utrechtafval.map.layouts.CheckableTextView

…

10-31 00:51:20.414: E/AndroidRuntime(601): Caused by: java.lang.reflect.InvocationTargetException
10-31 00:51:20.414: E/AndroidRuntime(601):  at java.lang.reflect.Constructor.constructNative(Native Method)
10-31 00:51:20.414: E/AndroidRuntime(601):  at java.lang.reflect.Constructor.newInstance(Constructor.java:415)
10-31 00:51:20.414: E/AndroidRuntime(601):  at android.view.LayoutInflater.createView(LayoutInflater.java:505)
10-31 00:51:20.414: E/AndroidRuntime(601):  ... 45 more
10-31 00:51:20.414: E/AndroidRuntime(601): Caused by: java.lang.UnsupportedOperationException: Can't convert to dimension: type=0x2
10-31 00:51:20.414: E/AndroidRuntime(601):  at android.content.res.TypedArray.getDimensionPixelSize(TypedArray.java:463)
10-31 00:51:20.414: E/AndroidRuntime(601):  at android.view.View.<init>(View.java:1963)
10-31 00:51:20.414: E/AndroidRuntime(601):  at android.widget.TextView.<init>(TextView.java:344)
10-31 00:51:20.414: E/AndroidRuntime(601):  at android.widget.TextView.<init>(TextView.java:337)
10-31 00:51:20.414: E/AndroidRuntime(601):  at net.app.layouts.CheckableTextView.<init>(CheckableTextView.java:11)
10-31 00:51:20.414: E/AndroidRuntime(601):  ... 48 more

I can’t seem to find out what this type=0x2 means.

Here is the XML:

<?xml version="1.0" encoding="utf-8"?>

<app.CheckableTextView
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/overlay_type_title"
    android:layout_width="match_parent"
    android:background="@drawable/overlay_list_bg_selector"
    android:layout_height="wrap_content"
    android:drawableLeft="@drawable/overlay_list_icon"
    android:drawablePadding="10dp"
    android:gravity="center_vertical"
    android:minHeight="?android:attr/listPreferredItemHeightSmall"
    android:paddingLeft="10dp"
    android:paddingRight="?android:attr/listPreferredItemPaddingRight"
    android:textAppearance="?android:attr/textAppearanceListItemSmall" 
    >
</app.CheckableTextView>
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1 Answer

  1. Editorial Team

    ?android:attr/listPreferredItemPaddingLeft and ?android:attr/listPreferredItemPaddingRight are available only in API 14+ (ICS and later). Thus, it is not interpreting it as a dimension on API 9-10 (2.3).

    I would suggest using your own values. If you’re familiar with resource files, add a <dimen> attribute with a padding value similar to the one you’re seeing on ICS, then reference that.

    If you’re unfamiliar with custom XML values, have a look at the dimen documentation.

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