Android网格布局实现--recyclerview

接上一篇内容，使用RecyclerView实现；

android:id="@+id/rvGrid"
android:layout_width="match_parent"
android:layout_height="0px"
android:layout_marginRight="30px"
android:layout_marginTop="20px"
android:layout_weight="1"

android:splitMotionEvents="false" />

java代码：

mPhotoWallRecyclerView.setLayoutManager(mSGLM);
mPhotoWallRecyclerView.setHasFixedSize(true);
mPhotoWallRecyclerView.addOnScrollListener(mOnScrollListener);

mPhotoWallAdapter = new PhotoWallAdapter2(mCtx, null);
mPhotoWallAdapter.setAddrCardListener(mAddrCardListener);
// Set the RecyclerView's Adapter
mPhotoWallRecyclerView.setAdapter(mPhotoWallAdapter);

适配器代码

public class PhotoWallAdapter2 extends RecyclerView.Adapter {    private ArrayList mDataset;    private List mHeights;    private AddrCardListener mListener;    private DisplayImageOptions options;    public PhotoWallAdapter2(Context context, ArrayList myDataset) {        if (myDataset == null)            this.mDataset = new ArrayList();        else            this.mDataset = myDataset;        options = new DisplayImageOptions.Builder()                .cacheInMemory(true)                .cacheOnDisk(true)                .considerExifParams(true)                .bitmapConfig(Bitmap.Config.RGB_565)                .build();    }    public void getRandomHeight() {        mHeights = new ArrayList();        int min = 252;        for (int i = 0; i < mDataset.size(); i++) {            //随机的获取一个范围为200-600直接的高度            String name = mDataset.get(i).getName();            int w = (name.length() + 1) * 24 + 36;            int ww = Math.max(min, w);            mHeights.add(ww);        }    }    public void setAddrCardListener(AddrCardListener listener) {        mListener = listener;    }    private void setAdapterListener(MyViewHolder holder) {        if (mListener == null) return;        if (holder.tvTitle.getVisibility() == View.GONE) {            return;        }        holder.itemView.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                MyViewHolder holder = (MyViewHolder) v.getTag();                final int position = holder.getLayoutPosition();                notifyItemChanged(position);                mListener.onAddrItemClick(position);            }        });        holder.itemView.setTag(holder);    }    @Override    public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {        // Create a new view by inflating the row item xml.        final View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.photo_card_cell2, parent, false);        MyViewHolder holder = new MyViewHolder(v);        setAdapterListener(holder);        return holder;    }    public void addData(List datalist) {        if ((datalist != null) && (datalist.size() > 0)) {            mDataset.clear();            notifyDataSetChanged();            mDataset.addAll(getItemCount(), datalist);            getRandomHeight();            notifyItemChanged(0);            notifyDataSetChanged();        }    }    public ArrayList getData() {        return mDataset;    }    public CardAddrItem getItem(int position) {        return (mDataset != null && position >= 0 && position < mDataset.size()) ?                mDataset.get(position) : null;    }    @Override    public int getItemCount() {        return (mDataset == null) ? 0 : mDataset.size();    }    @Override    public void onBindViewHolder(final MyViewHolder holder, int position) {        CardAddrItem map = mDataset.get(position);        holder.tvTitle.setText(map.getName().trim());        holder.tvTitle.setVisibility(View.VISIBLE);        holder.tvAddress.setText(map.getAddress().trim());        holder.tvAddress.setVisibility(View.VISIBLE);        String url = map.getUrl();        holder.ivPhoto.setTag(holder.spinner);        holder.ivPhoto.setScaleType(ImageView.ScaleType.CENTER_CROP);        ImageLoader.getInstance().displayImage(url, holder.ivPhoto, options, new SimpleImageLoadingListener() {            @Override            public void onLoadingStarted(String imageUri, View view) {                holder.spinner.setVisibility(View.VISIBLE);            }            @Override            public void onLoadingFailed(String imageUri, View view, FailReason failReason) {                String message = null;                switch (failReason.getType()) {                    case IO_ERROR:                        message = "Input/Output error";                        break;                    case DECODING_ERROR:                        message = "Image can't be decoded";                        break;                    case NETWORK_DENIED:                        message = "Downloads are denied";                        break;                    case OUT_OF_MEMORY:                        message = "Out Of Memory error";                        break;                    case UNKNOWN:                        message = "Unknown error";                        break;                }                Toast.makeText(view.getContext(), message, Toast.LENGTH_SHORT).show();                holder.spinner.setVisibility(View.GONE);            }            @Override            public void onLoadingComplete(String imageUri, View view, Bitmap loadedImage) {                holder.spinner.setVisibility(View.GONE);            }        }, new ImageLoadingProgressListener() {            @Override            public void onProgressUpdate(String imageUri, View view, int current, int total) {                holder.spinner.setProgress(Math.round(100.0f * current / total));            }        });    }    /**     * Create a ViewHolder to represent your cell layout     * and data element structure     */    public static class MyViewHolder extends RecyclerView.ViewHolder {        ImageView ivPhoto;        TextView tvTitle;        TextView tvAddress;        View llCardBack;        ProgressBar spinner;        public MyViewHolder(View itemView) {            super(itemView);            ivPhoto = (ImageView) itemView.findViewById(R.id.photo);            tvTitle = (TextView) itemView.findViewById(R.id.tvTitle);            tvAddress = (TextView) itemView.findViewById(R.id.tvAddress);            llCardBack = itemView.findViewById(R.id.llCardBack);            spinner = (ProgressBar) itemView.findViewById(R.id.loading);        }    }    public interface AddrCardListener {        void onAddrItemClick(int position);        void onAddrNaviClick(int position);        void onAddrCollClick(int position);    }

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