I'm trying to get an ICS spinner like in my app, and playing around for hours, finally I'm using HoloEverywhere to get this, and it's working, but I have a little disign issue, is that the spinner is not wrapping its content as I set in the xml, and by default looks like this :
Really I googled this for hours, and all I found is that how to resize spinner items and not the view itself, means that I want the spinner to be adjusted to the selected item size like this :
Here is my XML:
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="40dp"
android:orientation="horizontal" >
<org.holoeverywhere.widget.Spinner
android:id="@+id/spnCities"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:layout_marginRight="10dp"
/>
<TextView
android:id="@+id/tvCities"
android:layout_width="70dp"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:layout_marginLeft="10dp"
android:text="@string/city"
android:textAppearance="?android:attr/textAppearanceSmall" />
</RelativeLayout>
Spinner have max width his items, but at most a parent width (on layout_width = wrap_content). You may create CustomSpinner class in org.holoeverywhere.widget package and override method measureContentWidth:
@Override
int measureContentWidth(SpinnerAdapter adapter, Drawable background) {
if (adapter == null) {
return 0;
}
View view = adapter.getView(getSelectedItemPosition(), null, this);
if (view.getLayoutParams() == null) {
view.setLayoutParams(new ViewGroup.LayoutParams(
ViewGroup.LayoutParams.WRAP_CONTENT,
ViewGroup.LayoutParams.WRAP_CONTENT));
}
view.measure(MeasureSpec.makeMeasureSpec(0,
MeasureSpec.UNSPECIFIED), MeasureSpec.makeMeasureSpec(0,
MeasureSpec.UNSPECIFIED));
int width = view.getMeasuredWidth();
if (background != null) {
Rect mTempRect = new Rect();
background.getPadding(mTempRect);
width += mTempRect.left + mTempRect.right;
}
return width;
}
来源:https://stackoverflow.com/questions/13954917/android-spinner-size-very-large