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Start your free trialVal Rich
3,802 PointsUsing ButterKnife in the HourViewHolder
Wanted to try using Butterknife in the HourViewHolder class in the HourAdapter class. Only error I'm getting is when I try to inject the views into the HourViewHolder constructor.
public class HourViewHolder extends RecyclerView.ViewHolder {
@InjectView(R.id.timeLabel) TextView mTimeLabel;
@InjectView(R.id.summaryLabel) TextView mSummarylabel;
@InjectView(R.id.temperatureLabel) TextView mTemperatureLabel;
@InjectView(R.id.iconImageView) ImageView mIconImageView;
public HourViewHolder(View itemView) {
super(itemView);
ButterKnife.inject(this); //<===== Here is where the error occurs.
//"this" isn't doing what it should?
// Causing a nullpointer exception.
}
public void bindHour(Hour hour){
mTimeLabel.setText(hour.getHour());
mSummarylabel.setText(hour.getSummary());
mTemperatureLabel.setText(hour.getTemperature()+"");
mIconImageView.setImageResource(hour.getIconId());
}
}
1 Answer
Jon Kussmann
Courses Plus Student 7,254 PointsHi,
Using ButterKnife in a fragment or for an adapter is a little different than for an activity.
For a fragment/adapter you also need to pass in the view as a second parameter. In your case it would be:
ButterKnife.inject(this, itemView);
Val Rich
3,802 PointsVal Rich
3,802 PointsThat made it work like a charm. i was dang close though, must have missed that requirement when looking through. Thank You!
Jon Kussmann
Courses Plus Student 7,254 PointsJon Kussmann
Courses Plus Student 7,254 PointsNo problem!