Using String variable to create android imageview

Question

i want to do like let user to add a new item which user can enter item name, item description, item price and so on. let say the name variable stored candy and i have a candy image in my drawable can i do like R.drawable.name to refer to R.drawable.candy?? Anyone help pls

public class item {
    String name;
    String desc;
    double price;
    int itemimage;

    public item(String name, String desc, double price) {
        this.name = name;
        this.desc = desc;
        this.price = price;

        itemimage = R.drawable.name;//my question is here
        //i want to have auto define the image of the item for later use
        // so i can do like set imageview of this item
        //i will have the image have same name with item name
        // for example my item name is candy
        //then i will have a image at the android drawable named candy
        //so in android to define this image is R.drawable.candy
        // can i do like R.drawable.name  <-- variable store with value candy
        // is it same with R.drawable.candy
    }
}//end class item

//another class
public class main {
    Arraylist<item> itemdatabase = new Arraylist<item>();

    Scanner input = new Scanner(System.in);

    System.out.print("Enter item name:");
    String itemname = input.nextLine();

    System.out.print("Enter item desc:");
    String itemdesc = input.nextLine();

    System.out.print("Enter item price:");
    double itemprice = input.nextDouble();

    itemdatabase.add(new

    item(itemname, itemdesc, itemprice);
}

But you have a lot of statements outside of methods. Didn't the compiler complain about it? — Juan Carlos Mendoza
– Juan Carlos Mendoza, Commented Sep 6, 2017 at 15:23

Ben P. · Accepted Answer · 2017-09-06 15:38:56Z

1

You can use the Resources.getIdentifier() method. For R.drawable.candy, you'd use it like this:

int id = getResources().getIdentifier("candy", "drawable", getPackageName());
// now `id` == R.drawable.candy

This code assumes you're running inside an Activity. If not, you'll need access to a Context instance so that you can call Context.getResources() and Context.getPackageName(). That might look like this:

int id = mContext.getResources().getIdentifier("candy", "drawable", mContext.getPackageName());

answered Sep 6, 2017 at 15:38

Ben P.

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Comments

Ashish Kumar · Accepted Answer · 2017-09-06 16:09:29Z

0

Answer is No, You can not do like R.drawable.name

answered Sep 6, 2017 at 16:09

Ashish Kumar

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