Question

我是android新手。我正在开发图像过滤器应用程序，我的应用程序运行正常，但问题是在图像上应用过滤器时会崩溃。我已经为滤镜图像使用了回收视图，我想单击每个滤镜并将其应用于从图库加载的完整图像。请帮助我任何人，谢谢。

我的代码是....

def estimation_value_1(event):
            self.e3.insert(0, ((float(self.e1.get()))*(float(self.e2.get()))))

//主要活动

 public class ThumbnailsAdapter extends `enter code here`RecyclerView.Adapter<RecyclerView.ViewHolder> {
    private static final String TAG = "THUMBNAILS_ADAPTER";
    private static int lastPosition = -1;
    private ThumbnailCallback thumbnailCallback;
    private List<ThumbnailItem> dataSet;

    public ThumbnailsAdapter(List<ThumbnailItem> dataSet, ThumbnailCallback thumbnailCallback) {
        Log.v(TAG, "Thumbnails Adapter has " + dataSet.size() + " items");
        this.dataSet = dataSet;
        this.thumbnailCallback = thumbnailCallback;
    }

    @Override
    public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup viewGroup, int i) {
        Log.v(TAG, "On Create View Holder Called");
        View itemView = LayoutInflater.from(viewGroup.getContext()).
                inflate(R.layout.list_thumbnail_item, viewGroup, false);
        return new ThumbnailsViewHolder(itemView);
    }

    @Override
    public void onBindViewHolder(RecyclerView.ViewHolder holder, final int i) {
        final ThumbnailItem thumbnailItem = dataSet.get(i);
        Log.v(TAG, "On Bind View Called");
        ThumbnailsViewHolder thumbnailsViewHolder = (ThumbnailsViewHolder) holder;
        thumbnailsViewHolder.thumbnail.setImageBitmap(thumbnailItem.image);
        thumbnailsViewHolder.thumbnail.setScaleType(ImageView.ScaleType.FIT_START);
        setAnimation(thumbnailsViewHolder.thumbnail, i);
        thumbnailsViewHolder.thumbnail.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (lastPosition != i) {
                    thumbnailCallback.onThumbnailClick(thumbnailItem.filter);
                    lastPosition = i;
                }
            }

        });
    }

    private void setAnimation(View viewToAnimate, int position) {
        {
//            ViewHelper.setAlpha(viewToAnimate, .0f);
//       com.nineoldandroids.view.ViewPropertyAnimator.animate(viewToAnimate).alpha(1).setDuration(250).start();
            lastPosition = position;
        }
    }

    @Override
    public int getItemCount() {

        return dataSet.size();
    }

    public static class ThumbnailsViewHolder extends RecyclerView.ViewHolder {
        public ImageView thumbnail;

        public ThumbnailsViewHolder(View v) {
            super(v);
            this.thumbnail =  v.findViewById(R.id.thumbnail);
        }
    }


}

//出现此错误在com.example.muhammadmehran.framefor_babyimages.Full_Image_Activity.onThumbnailClick（Full_Image_Activity.java:538）在com.example.muhammadmehran.framefor_babyimages.ThumbnailsAdapter $ 1.onClick（ThumbnailsAdapter.java:47）

在从图库加载的完整图像上应用滤镜图像

0 个答案: