get drawable from ImageView

Question

I am currently building an app that has 6 images on the main view and it generates random images from my drawable folder (shuffling a deck of cards)

initializing the decks:

public static void initDecks() {
    int m = 0;
    for (int i = 0; i < suites.length; i += 1) {
        for (int j = 0; j < regularCards.length; j += 1) {
            regularDeck[m++] = "drawablw/" + suites[i] + regularCards[j]
                    + ".jpg";
        }
    }
    m = 0;
    for (int i = 0; i < suites.length; i += 1) {
        for (int j = 0; j < trickCards.length; j += 1) {
            trickDeck[m++] = "drawable/" + suites[i] + trickCards[j]
                    + ".jpg";
        }
    }

    Collections.shuffle(Arrays.asList(regularDeck));
    Collections.shuffle(Arrays.asList(trickDeck));
}

shuffle the deck:

public static String[] getCards(int size) {
    String[] result = new String[size];
    for (int i = 0; i < size - 2; i += 1) {
        result[i] = regularDeck[i];
    }
    result[size - 1] = trickDeck[0];
    Collections.shuffle(Arrays.asList(result));
    return result;
}

in my main activity, I assign the cards to the view and when the user clicks on them, I want to know if the image is a trick card or a regular one.

is there a way to find out if the card that was clicked a trick one or not? something like if(image.getImageDrawable().equals(R.drawable.trick.jpg)?

Please look ovet this link http://stackoverflow.com/questions/4526585/imageview-drawable-id-in-android .................. — Dheeresh Singh, May 24 '12 at 10:42

score 1 · Accepted Answer · answered May 24 '12 at 10:16

1

Store the name/id of the drawable at the point where you set it to the ImageView. So you always have a member variable in your class/activity that holds the current image identifier.

answered May 24 '12 at 10:16

WarrenFaith

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score 0 · Answer 2 · edited May 23 '17 at 12:30

0

Please look ovet this link

Get the ID of a drawable in ImageView

Basically you can set the id in ImageView tag when ever you set the image in ImageView and get from that where you need....

edited May 23 '17 at 12:30

Community

1
1

answered May 24 '12 at 10:45

Dheeresh Singh

15,643
3
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Yeung · Answer 3 · 2012-12-27T04:42:13.333

public static Integer getDrawableId(ImageView obj)
    throws SecurityException, NoSuchFieldException,
    IllegalArgumentException, IllegalAccessException, ClassNotFoundException {
        Field f = ImageView.class.getDeclaredField("mResource");
        f.setAccessible(true);
        Object out = f.get(obj);
        return (Integer)out;
}

I found that the Drawable resource id is stored in mResource field in the ImageView object.

Notice that Drawable in ImageView may not always come from a resource id. It may come from a Drawable object or image Uri. In these cases, the mResource will reset to 0. Therefore, do not rely on this much.

get drawable from ImageView

3 Answers3