Then write your own custom Drawable subclass that does what you want.
On Thu, Jul 5, 2012 at 10:04 PM, lianyu li <ice...@gmail.com> wrote:
> But sometimes it's really not enough to express states only with booleans,
> actually I have the same issue with Nick, that is "adding custom states in
> a list of enums". Not sure whether Android has plan to add such feature.
>
>
> On Fri, Jul 6, 2012 at 10:18 AM, Dianne Hackborn <hack...@android.com>wrote:
>
>> Yes this must be booleans. There is no way to express anything else in
>> StateListDrawable.
>>
>>
>> On Thu, Jul 5, 2012 at 6:21 AM, li lianyu <ice...@gmail.com> wrote:
>>
>>> It's seems that currently Android doesn't support non-boolean state. You
>>> can verify it by adding another item with non-a state in selector pair. I
>>> assume Android evaluates true/false only by checking whether corresonding
>>> state attribute be in drawableState returned by onCreateDrawableState.
>>>
>>>
>>> On Saturday, January 21, 2012 3:40:41 AM UTC+8, Nick wrote:
>>>>
>>>> I have searched around and I found good examples on adding custom
>>>> boolean states to a drawable but I am having issues adding a state
>>>> that is a list of enums. I am sure most of my problems lie within the
>>>> onCreateDrawableState call so I have a few questions.
>>>>
>>>> 1) Is the extraSpace param to onCreateDrawableState the number of
>>>> additional int[] that I would like to add or the size of the int[]? So
>>>> since I am just adding MODE I should just be increasing extraSpace by
>>>> 1 and not by MODE.length?
>>>> 2) I don't quite understand the mergeDrawableStates method. If I put
>>>> it in an IF statement I am getting what I expect, but I think I am
>>>> just getting lucky. I don't feel my IF check is correct. My initial
>>>> assumption was that I don't do a check and always call
>>>> mergeDrawableStates but then the drawable never changes. I have seen
>>>> where if the extra state is a boolean then the if statement checks for
>>>> that. I don't quite know what to do about an enum.
>>>> 3) When I do get it working, my ic_button_a is drawn correctly.
>>>> However every time when ic_button_c is getting drawn, ic_button_c is
>>>> resized and stretch to fit the View which includes a background
>>>> graphic that is larger than ic_button_c. ic_button_a and ic_button_a
>>>> are the same size.
>>>>
>>>> I have my custom view:
>>>> <com.pkg.CustomView
>>>> android:background="@drawable/**ic_button_bg"
>>>> android:src="@drawable/ic_**button"
>>>> android:layout_height="wrap_**content"
>>>> android:layout_width="wrap_**content"/>
>>>>
>>>> which extends ImageButton.:
>>>> public class CustomView extends ImageButton {
>>>>
>>>> private static final int[] MODE = {R.attr.mode};
>>>> private int mMode = 1;
>>>>
>>>> @Override
>>>> public int[] onCreateDrawableState(int extraSpace) {
>>>> final int[] drawableState =
>>>> super.onCreateDrawableState(**extraSpace + 1);
>>>> if (mMode != 0) {
>>>> mergeDrawableStates(**drawableState, MODE);
>>>> }
>>>> return drawableState;
>>>> }
>>>>
>>>> public void setMode(int mode) {
>>>> mMode = mode;
>>>> refreshDrawableState();
>>>> }
>>>> }
>>>>
>>>> I am defining my modes here:
>>>> <resources>
>>>> <declare-styleable name="CaptureButton">
>>>> <attr name="mode">
>>>> <enum name="a" value="0" />
>>>> <enum name="b" value="1" />
>>>> <enum name="c" value="2" />
>>>> <enum name="d" value="3" />
>>>> <enum name="e" value="4" />
>>>> <enum name="f" value="5" />
>>>> <enum name="g" value="6" />
>>>> <enum name="h" value="7" />
>>>> </attr>
>>>> </declare-styleable>
>>>> </resources>
>>>>
>>>> My @drawable/ic_button is:
>>>> <selector
>>>> xmlns:android="http://schemas.**android.com/apk/res/android<http://schemas.android.com/apk/res/android>"
>>>>
>>>>
>>>> xmlns:app="http://schemas.**android.com/apk/res/com.pkg<http://schemas.android.com/apk/res/com.pkg>">
>>>>
>>>> <item app:mode="c" android:drawable="@drawable/**ic_button_c" />
>>>>
>>>> <item android:drawable="@drawable/**ic_button_a" />
>>>> </selector>
>>>
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>>
>>
>>
>> --
>> Dianne Hackborn
>> Android framework engineer
>> hack...@android.com
>>
>> Note: please don't send private questions to me, as I don't have time to
>> provide private support, and so won't reply to such e-mails. All such
>> questions should be posted on public forums, where I and others can see and
>> answer them.
>>
>>
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>
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--
Dianne Hackborn
Android framework engineer
hack...@android.com
Note: please don't send private questions to me, as I don't have time to
provide private support, and so won't reply to such e-mails. All such
questions should be posted on public forums, where I and others can see and
answer them.
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