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Android Build a Weather App (2015) Hooking Up the Model to the View Setting Views with Data

how to set image using butterknife

I thought I'd get this one but butterknife is a bit confusing. Steve Hunter

import android.os.Bundle;
import android.view.View;

public class MovieActivity extends Activity {

    @BindView(R.id.movieTitle) TextView mTitleLabel;
    @BindView(R.id.movieImage) ImageView mMovieImage;

    public void onCreate(Bundle savedInstanceState) {

        // The rest of the code is omitted for brevity :)

    public void updateDisplay(Movie movie) {
        mMovieImage.setImageDrawable(movie.getImageId(int mImageId));

1 Answer

Hi Mal,

You've got the first bit spot on - you've correctly identified that you want to call setImageDrawable on mMovieImage. Good work.

You've also got the right method for movie which is getImageId() - but that doesn't need a parameter; it just returns the image id so leave it as movie.getImageId().

What you need to add is a call to getDrawable() - the question mentions this. The parameter for getDrawable is the image id that we just wrote. So, getDrawable(movie.getImageId()) would work fine. If you remember from the video, we're getting resources, right? So, we want to chain, using dot notation, the getDrawable() call on to a getResources() method. ALL of this is passed into setImageDrawable() as its parameter. That makes for a long paramater, but it looks like this:


I hope that explanation helps and you understand it!


I got it master Steve Hunter, the coding force is beginning to like me.

Drawable drawable = getResources().getDrawable(movie.getImageId()); mMovieImage.setImageDrawable(drawable);

Perfect! :+1: