Picasso load drawable resources from their URI

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北荒
北荒 2020-11-30 06:46

I have to show a drawable from res into an ImageView. In this app, I\'m using Picasso for some reasons.

In this case, I need t

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  • 2020-11-30 06:51

    Found the answer. Unfortunately, Picasso do not allow drawable loading via URI. It is an incoming feature.

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  • 2020-11-30 06:57

    If the images is in your drawable folder then you can just load it.

    Picasso.with(context).load(R.drawable.drawableName).into(imageView);
    

    and picasso will load it no need for an Uri.

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  • 2020-11-30 07:00

    From picasso v2+ here is a big modification. The new version is very helpful in order to manage image cache data. It's using Singleton Instance.

    GRADLE

    implementation 'com.squareup.picasso:picasso:2.71828'
    

    Set drawable image

    Picasso.get()
        .load(url)
        .placeholder(R.drawable.user_placeholder)
        .error(R.drawable.user_placeholder_error)
        .into(imageView);
    

    Bonus, get drawable by name:

    public static int getDrawableIdFromFileName(Context context, String nameOfDrawable) {
            return context.getResources().getIdentifier(nameOfDrawable, "drawable", context.getPackageName());
    }
    
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  • 2020-11-30 07:07

    As mentioned in the documentation of Picasso .

    they are now supporting loading Image from URI like the following :

    load(android.net.Uri uri) 
    

    so you have to do something like the following :

    Picasso.with(context).load(uri).into(imageView); 
    

    just like what you are doing already .

    Hopethat helps .

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  • 2020-11-30 07:11
    • This is if you don't want to hardcode the image that you are going to load...

    You can load local image files from your drawable folder lazily if you know the integer value of the image that you want to be loaded.

    Then you can just do:

    Picasso.with(getContext()).load(imageResourceId)
    .error(R.drawable.ic_launcher)
    .into(imageView);
    

    Where

    imageView

    is the view you wish to display the image. For example:

    imageView = (ImageView) convertView
    .findViewById(R.id.itemImage);
    

    And where

    imageResourceId

    is the integer value of the drawable. You can retrieve this integer value by:

    int productImageId = resources.getIdentifier(
    productImageName, "drawable", context.getPackageName());
    

    as well as

    productImageName

    is the name of the drawable you want to draw (i.e. "ic_launcher")

    THIS CAN ALL BE DONE INSIDE FROM THE ADAPTER

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