Using setImageDrawable dynamically to set image in an ImageView

Question

I am generating a string from database dynamically which has the same name of image in drawable folder.

Now I want to set that value for ImageView using setImageDrawable(R.id.StringGenerated) dynamically.

Any Suggestions..

means you are generating ID of the image dynamically, right? — Paresh Mayani, Dec 27 '11 at 09:09

score 204 · Accepted Answer · answered Dec 27 '11 at 09:39

204

Try this,

int id = getResources().getIdentifier("yourpackagename:drawable/" + StringGenerated, null, null);

This will return the id of the drawable you want to access... then you can set the image in the imageview by doing the following

imageview.setImageResource(id);

answered Dec 27 '11 at 09:39

King RV

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Thanks a ton..i found it somewhere else bt still thanks for your Efforts.. :) – Arun Jan 04 '12 at 06:33
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However using setImageResource() "does Bitmap reading and decoding on the UI thread, which can cause a latency hiccup ... consider using setImageDrawable() or setImageBitmap()." _(Android documentation)_ – chetto Oct 25 '12 at 18:30
6

You could also get the id by simply using: R.drawable.filemane – Artur Nov 15 '13 at 05:41

score 106 · Answer 2 · answered Dec 27 '11 at 09:10

106

Drawable image = ImageOperations(context,ed.toString(),"image.jpg");
            ImageView imgView = new ImageView(context);
            imgView = (ImageView)findViewById(R.id.image1);
            imgView.setImageDrawable(image);

or

setImageDrawable(getResources().getDrawable(R.drawable.icon));

answered Dec 27 '11 at 09:10

NikhilReddy

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he said he is generating a string from database dynamically with the same name of image. – Paresh Mayani Dec 27 '11 at 09:14
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getDrawable(R.drawable.icon) is deprecated – Daryn Sep 29 '16 at 03:41
For people who need to resolve getDrawable(R.drawable.icon) is deprecated, try to read this [SO link](https://stackoverflow.com/questions/29041027/android-getresources-getdrawable-deprecated-api-22) – Codingpan Feb 27 '18 at 19:52

jlopez · Answer 3 · 2015-07-06T06:40:30.300

82

I personally prefer to use the method setImageResource() like this.

ImageView myImageView = (ImageView)findViewById(R.id.myImage);
myImageView.setImageResource(R.drawable.icon);

edited Jul 06 '15 at 06:40

answered Mar 09 '15 at 10:29

jlopez

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this one wins since you may want to change image from any place in your code where you do not have context to call getResources() method on it. e.g in Adapters. No need to pass context through constructor just for this funcionality. – Phatee P Dec 22 '16 at 00:30
1

way cleaner. I dont get why this is not the preferred answer. – Benjamin Basmaci Nov 22 '18 at 14:00
1

@BenjaminBasmaci This does Bitmap reading and decoding on the UI thread, which can cause a latency hiccup. If that's a concern, consider using setImageDrawable(android.graphics.drawable.Drawable) or setImageBitmap(android.graphics.Bitmap) and BitmapFactory instead. (From Android Documentation) – Tayyab Mazhar May 01 '20 at 11:15

Greyson · Answer 4 · 2011-12-29T21:34:36.373

The resource drawable names are not stored as strings, so you'll have to resolve the string into the integer constant generated during the build. You can use the Resources class to resolve the string into that integer.

Resources res = getResources();
int resourceId = res.getIdentifier(
   generatedString, "drawable", getPackageName() );
imageView.setImageResource( resourceId );

This resolves your generated string into the integer that the ImageView can use to load the right image.

Alternately, you can use the id to load the Drawable manually and then set the image using that drawable instead of the resource ID.

Drawable drawable = res.getDrawable( resourceId );
imageView.setImageDrawable( drawable );

@Greyson... Nice one sir..thatz what i am looking for..Thanks a lot.. :) — Arun, Jan 04 '12 at 07:25

score 13 · Answer 5 · edited Jun 16 '16 at 14:10

13

As simple as this answer:

Drawable myDrawable = getResources().getDrawable(R.drawable.pic);
imageview.setImageDrawable(myDrawable);

edited Jun 16 '16 at 14:10

TylerH

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answered Feb 11 '15 at 07:17

Ahmad Arslan

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score 12 · Answer 6 · answered Apr 01 '17 at 18:02

12

All the answers posted do not apply today. For example, getDrawable() is deprecated. Here is an updated answer, cheers!

ContextCompat.getDrawable(mContext, drawable)

From documented method

public static final android.graphics.drawable.Drawable getDrawable(@NotNull android.content.Context context,
@android.support.annotation.DrawableRes int id

answered Apr 01 '17 at 18:02

portfoliobuilder

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Thanks for mentioning deprecated part. – Karan Sharma Nov 13 '19 at 00:51

score 12 · Answer 7 · edited Mar 17 '19 at 08:57

12

You can try to use this code:

ImageView ImgView = (ImageView)findViewById(R.id.ImgView);
ImgView.setImageResource(R.drawable.myicon);

edited Mar 17 '19 at 08:57

Gilles Heinesch

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answered Mar 17 '19 at 08:22

Mersad Nilchy

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score 9 · Answer 8 · answered Nov 13 '13 at 18:18

This works, at least in Android API 15

ImageView = imgv;
Resources res = getResources(); // need this to fetch the drawable
Drawable draw = res.getDrawable( R.drawable.image_name_in_drawable );
imgv.setImageDrawable(draw);

You could use setImageResource(), but the documentation specifies that "does Bitmap reading and decoding on the UI thread, which can cause a latency hiccup ... consider using setImageDrawable() or setImageBitmap()." as stated by chetto

score 5 · Answer 9 · answered Jun 27 '18 at 15:55

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imageView.setImageDrawable(getResources().getDrawable(R.drawable.my_drawable));

answered Jun 27 '18 at 15:55

lxknvlk

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score 4 · Answer 10 · edited Jun 16 '16 at 14:10

4

If You cannot get Resources object like this in a class which is not an Activity, you have to add getContext() method for getResources() for example

ImageView image = (ImageView) v.findViewById(R.id.item_image);
int id = getContext().getResources().getIdentifier(imageName, "drawable", getContext().getPackageName());
image.setImageResource(id);

edited Jun 16 '16 at 14:10

TylerH

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answered Nov 11 '15 at 17:10

Vladimir Salguero

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score 3 · Answer 11 · answered Sep 01 '16 at 10:00

3

You can also use something like:

imageView.setImageDrawable(ActivityCompat.getDrawable(getContext(), R.drawable.generatedID));

or using Picasso:

Picasso.with(getContext()).load(R.drawable.generatedId).into(imageView);

answered Sep 01 '16 at 10:00

ninjahoahong

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score 1 · Answer 12 · edited Aug 30 '20 at 08:30

1

From API 22 use:

Drawable myDrawable =  ResourcesCompat.getDrawable(getResources(), 
                        R.drawable.dos_red, null);

edited Aug 30 '20 at 08:30

Arghya Sadhu

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answered Aug 30 '20 at 07:48

Oras

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score 0 · Answer 13 · edited Oct 16 '14 at 16:34

0

I had the same problem as you and I did the following to solve it:

**IMAGEVIEW**.setImageResource(getActivity()
             .getResources()
             .getIdentifier("**IMG**", "drawable", getActivity()
             .getPackageName()));

edited Oct 16 '14 at 16:34

bitoiu

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answered Oct 16 '14 at 16:06

JCDecary

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Abdul Gaffar · Answer 14 · 2017-01-09T06:50:03.397

Construct a POJO.java class and create "constructor, getter & setter methods"

class POJO{
        public POJO(Drawable proImagePath) {
                setProductImagePath(proImagePath);
        }

        public Drawable getProductImagePath() {
                return productImagePath;
        }

        public void setProductImagePath(Drawable productImagePath) {
                this.productImagePath = productImagePath;
        }
}

Then setup the adapters through image drawable resources to CustomAdapter.java

    class CustomAdapter extends ArrayAdapter<POJO>{

       private ArrayList<POJO> cartList = new ArrayList<POJO>();
       public MyCartAdapter(Context context, int resource) {
          super(context, resource);
       }

       public MyCartAdapter(Context context, ArrayList<POJO> cartList) {
          super(context, 0, cartList);
          this.context = context;
          this.cartList = cartList;

       }

       @Override
       public View getView(int position, View convertView, ViewGroup parent) {
          /*
          *Here you can setup your layout and references.
          **/
          ImageView productImage = (ImageView) rootView.findViewById(R.id.cart_pro_image);
          productImage.setImageDrawable(POJO.getProductImagePath());
        }
    }

Then pass the references through ActivityClass.java

public class MyCartActivity extends AppCompatActivity{
       POJO pojo;
       CustomAdapter customAdapter;
       ArrayList<POJO> cartList = new ArrayList<POJO>();

       @Override
       protected void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
          setContentView(R.layout.your_layout);

          customAdapter = new CustomAdapter(this, cartList);

          pojo = new POJO(getResources().getDrawable(R.drawable.help_green));

    }
}

score -3 · Answer 15 · answered Jun 16 '16 at 13:46

a piece of my project, everything works! )

@Override
    public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
        final ModelSystemTraining modelSystemTraining = items.get(position);

int icon = context.getResources().getIdentifier(String.valueOf(modelSystemTraining.getItemIcon()), "drawable", context.getPackageName());

        final FragmentViewHolderSystem fragmentViewHolderSystem = (FragmentViewHolderSystem) holder;
        final View itemView = fragmentViewHolderSystem.itemView;
//                Set Icon
fragmentViewHolderSystem.trainingIconImage.setImageResource(icon);
//                Set Title
fragmentViewHolderSystem.title.setText(modelSystemTraining.getItemTitle());
//                Set Desc
fragmentViewHolderSystem.description.setText(modelSystemTraining.getItemDescription());

You should really add some explanation as to why this code should work - you can also add comments in the code itself - in its current form, it does not provide any explanation which can help the rest of the community to understand what you did to solve/answer the question. — ishmaelMakitla, Jun 16 '16 at 14:05

score -3 · Answer 16 · answered Jan 11 '18 at 22:47

-3

btnImg.SetImageDrawable(GetDrawable(Resource.Drawable.button_round_green));

API 23 Android 6.0

answered Jan 11 '18 at 22:47

isaac

1

Vinod Maurya · Answer 17 · 2011-12-27T09:20:50.767

-4

The 'R' file can not be generated at the run time of the app. You may use some other alternatives such as using if-else or switch-case

edited Dec 27 '11 at 09:20

answered Dec 27 '11 at 09:13

Vinod Maurya

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This doesn't seem to relate to the question. It seems as though he's trying to set an imageview to an already existing resource, rather than trying to generate `R` again – Greyson Dec 27 '11 at 22:46

Using setImageDrawable dynamically to set image in an ImageView

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