这篇文章主要介绍RecycleView如何实现各种尺寸图片展示,文中介绍的非常详细,具有一定的参考价值,感兴趣的小伙伴们一定要看完!
今天才发现,在一个RecycleView里可以展示各种尺寸的图片,贴图如下:
代码如下:
package com.hisense.movienow.HorizontalView; import android.content.Context; import android.content.Intent; import android.net.Uri; import android.support.annotation.NonNull; import android.support.v4.view.ViewCompat; import android.support.v7.widget.RecyclerView; import android.util.Log; import java.util.List; /** * Created by wangcm on 2018/11/13. */ public class SimpleRecyclerAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> { private static final String TAG = SimpleRecyclerAdapter.class.getSimpleName(); private LayoutInflater mInflater; private List<VideoCateContent> mListOfApps; private int currentPosition = 0; private Context context; public static enum ITEM_TYPE { ITEM_TYPE_MOVIE, ITEM_TYPE_APP, ITEM_TYPE_CHANNEL } List<MovieCategory> movieCategories; public SimpleRecyclerAdapter(Context context, List<VideoCateContent> mListOfApps){ mInflater = LayoutInflater.from(context); this.context = context; this.mListOfApps = mListOfApps; } public SimpleRecyclerAdapter(Context context, List<VideoCateContent> mListOfApps,List<MovieCategory> movieCategories){ mInflater = LayoutInflater.from(context); this.context = context; this.mListOfApps = mListOfApps; this.movieCategories = movieCategories; } @SuppressWarnings("unused") public void setData(List<VideoCateContent> mListOfApps){ this.mListOfApps = mListOfApps; } @Override public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { if(viewType == ITEM_TYPE.ITEM_TYPE_MOVIE.ordinal()){ return new ViewHolder(mInflater.inflate(R.layout.movie_item_layout,parent,false)); }else if(viewType == ITEM_TYPE.ITEM_TYPE_CHANNEL.ordinal()){ return new ChanneHolder(mInflater.inflate(R.layout.search_channel_item,parent,false)); }else{ return new AppViewHolder(mInflater.inflate(R.layout.home_app_item,parent,false)); } } public int getItemViewType(int position){ if(mListOfApps != null){ if(mListOfApps.get(position).getType() != null && mListOfApps.get(position).getType().equalsIgnoreCase("app")){ return ITEM_TYPE.ITEM_TYPE_APP.ordinal(); }else if(mListOfApps.get(position).getType() != null && mListOfApps.get(position).getType().equals("Channel")){ return ITEM_TYPE.ITEM_TYPE_CHANNEL.ordinal(); }else { return ITEM_TYPE.ITEM_TYPE_MOVIE.ordinal(); } }else{ return ITEM_TYPE.ITEM_TYPE_MOVIE.ordinal(); } } @Override public void onBindViewHolder(final RecyclerView.ViewHolder holder, final int position) { final VideoCateContent videoCateContent = mListOfApps.get(position); if(holder instanceof ViewHolder){ Glide.with(context).load(videoCateContent.getPoster()).into(((ViewHolder)holder).mImageView); ((ViewHolder)holder).mTextView.setText(videoCateContent.getTitle()); ViewGroup.LayoutParams params = ((ViewHolder)holder).mImageView.getLayoutParams(); ViewGroup.LayoutParams txtParams = ((ViewHolder)holder).mTextView.getLayoutParams(); if(videoCateContent.getPoster_type() == 0){//竖海报 params.width = 166; txtParams.width = 166; }else{ params.width = 444; txtParams.width = 444; // RecyclerView.ItemDecoration itemDecoration = ((RecyclerView)holder.itemView.getParent()).getItemDecorationAt(position); } if(videoCateContent.getIs_new() == 1){ ((ViewHolder)holder).newImage.setVisibility(View.VISIBLE); }else{ ((ViewHolder)holder).newImage.setVisibility(View.GONE); } ((ViewHolder)holder).mImageView.setLayoutParams(params); ((ViewHolder)holder).mTextView.setLayoutParams(txtParams); holder.itemView.setOnFocusChangeListener(new View.OnFocusChangeListener() { @Override public void onFocusChange(View v, boolean hasFocus) { if (hasFocus) { currentPosition = (int) holder.itemView.getTag(); ViewCompat.animate(holder.itemView).scaleX(1.10f).scaleY(1.10f).start(); int bigPostion = 0; if(movieCategories != null && movieCategories.size() != 0){ bigPostion = getCurrentIndex(); } mOnItemSelectListener.onItemSelect(holder.itemView, position,bigPostion); ((ViewHolder)holder).mImageView.setBorderColor(context.getResources().getColor(R.color.white),context.getResources().getColor(R.color.black),context.getResources().getColor(R.color.app_text_color)); ((ViewHolder)holder).mTextView.setSelected(true); ((ViewHolder)holder).mTextView.setTextColor(context.getResources().getColor(R.color.white)); ((ViewHolder)holder).newImage.setPadding(3,3,0,0); } else { int bigPostion = 0; if(movieCategories != null && movieCategories.size() != 0){ bigPostion = getCurrentIndex(); } mOnItemNoSelectListener.onItemNoSelect(holder.itemView,position,bigPostion); ViewCompat.animate(holder.itemView).scaleX(1.0f).scaleY(1.0f).start(); ((ViewHolder)holder).mImageView.setBorderColor(context.getResources().getColor(R.color.trans),context.getResources().getColor(R.color.trans),context.getResources().getColor(R.color.trans)); ((ViewHolder)holder).mTextView.setSelected(false); ((ViewHolder)holder).mTextView.setTextColor(context.getResources().getColor(R.color.title_color)); ((ViewHolder)holder).newImage.setPadding(0,0,0,0); } } }); }else if(holder instanceof AppViewHolder){ Glide.with(context).load(videoCateContent.getPoster()).into(((AppViewHolder)holder).mAppImageView); ((AppViewHolder)holder).tv_appName.setText(videoCateContent.getTitle()); holder.itemView.setOnFocusChangeListener(new View.OnFocusChangeListener() { @Override public void onFocusChange(View v, boolean hasFocus) { if (hasFocus) { currentPosition = (int) holder.itemView.getTag(); ViewCompat.animate(holder.itemView).scaleX(1.10f).scaleY(1.10f).start(); int bigPostion = 0; if(movieCategories != null && movieCategories.size() != 0){ bigPostion = getCurrentIndex(); } mOnItemSelectListener.onItemSelect(holder.itemView, position,bigPostion); ((AppViewHolder)holder).tv_appName.setVisibility(View.VISIBLE); ((AppViewHolder)holder).mAppImageView.setBorderColor(context.getResources().getColor(R.color.white),context.getResources().getColor(R.color.black),context.getResources().getColor(R.color.app_text_color)); } else { int bigPostion = 0; if(movieCategories != null && movieCategories.size() != 0){ bigPostion = getCurrentIndex(); } mOnItemNoSelectListener.onItemNoSelect(holder.itemView,position,bigPostion); ViewCompat.animate(holder.itemView).scaleX(1.0f).scaleY(1.0f).start(); ((AppViewHolder)holder).tv_appName.setVisibility(View.GONE); ((AppViewHolder)holder).mAppImageView.setBorderColor(context.getResources().getColor(R.color.trans),context.getResources().getColor(R.color.trans),context.getResources().getColor(R.color.trans)); } } }); }else if(holder instanceof ChanneHolder){ Glide.with(context).load(videoCateContent.getPoster()).into(((ChanneHolder)holder).mChannelImg); ((ChanneHolder)holder).tv_channelName.setText(videoCateContent.getTitle()); holder.itemView.setOnFocusChangeListener(new View.OnFocusChangeListener() { @Override public void onFocusChange(View v, boolean hasFocus) { if (hasFocus) { currentPosition = (int) holder.itemView.getTag(); ViewCompat.animate(holder.itemView).scaleX(1.10f).scaleY(1.10f).start(); int bigPostion = 0; if(movieCategories != null && movieCategories.size() != 0){ bigPostion = getCurrentIndex(); } mOnItemSelectListener.onItemSelect(holder.itemView, position,bigPostion); ((ChanneHolder)holder).tv_channelName.setSelected(true); ((ChanneHolder)holder).mChannelImg.setBorderColor(context.getResources().getColor(R.color.white),context.getResources().getColor(R.color.black),context.getResources().getColor(R.color.app_text_color)); } else { int bigPostion = 0; if(movieCategories != null && movieCategories.size() != 0){ bigPostion = getCurrentIndex(); } mOnItemNoSelectListener.onItemNoSelect(holder.itemView,position,bigPostion); ViewCompat.animate(holder.itemView).scaleX(1.0f).scaleY(1.0f).start(); ((ChanneHolder)holder).tv_channelName.setSelected(false); ((ChanneHolder)holder).mChannelImg.setBorderColor(context.getResources().getColor(R.color.trans),context.getResources().getColor(R.color.trans),context.getResources().getColor(R.color.trans)); } } }); } // 设置itemView可以获得焦点 holder.itemView.setFocusable(true); holder.itemView.setTag(position); holder.itemView.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { if(!CommonUtils.getInstance(context).isNetworkConnected()){ Toast.makeText(context,context.getResources().getString(R.string.no_net),Toast.LENGTH_SHORT).show(); return; } mOnItemClickListener.onItemClick(v, position); if(videoCateContent.getHas_detail_page() == 1){ Intent intent = new Intent(context,DetailActivity.class); intent.putExtra("media_id",videoCateContent.getId()); context.startActivity(intent); }else if(videoCateContent.getType().equalsIgnoreCase(context.getString(R.string.App))){ String pkgName = getPackageName(videoCateContent.getTitle()); if(pkgName != null){ Log.e(TAG,"pkgName======="+pkgName); // if(CommonUtils.getInstance(context).isInstalled(context,pkgName)){ CommonUtils.getInstance(context).openApp((MainActivity)context,pkgName); // } }else{ String searchStr = videoCateContent.getTitle(); Intent intent= new Intent(Intent.ACTION_VIEW); intent.setData(Uri.parse("market://search?q="+searchStr)); context.startActivity(intent); } }else{ if(!CommonUtils.getInstance(context).isNetworkConnected()){ Toast.makeText(context,context.getResources().getString(R.string.no_net),Toast.LENGTH_SHORT).show(); return; } HistoryBean historyBean = new HistoryBean(); historyBean.setWatchTime(System.currentTimeMillis()); historyBean.setVideoInfo(videoCateContent); for(int i = 0; i< Constant.historyBeanList.size(); i++){ HistoryBean bean = Constant.historyBeanList.get(i); if(bean.getVideoInfo().getId() == historyBean.getVideoInfo().getId()){ Constant.historyBeanList.remove(bean); } if(Constant.historyBeanList.size() >49){ if(i > 48){ Constant.historyBeanList.remove(i); } } } Constant.historyBeanList.add(0,historyBean); SaveValue.getInstance(context).setDataList("history",Constant.historyBeanList); Log.e(TAG,"deep_linking="+videoCateContent.getDeep_linking()); String deepLinking = videoCateContent.getDeep_linking(); if(deepLinking.contains("youtube")){ final String packageName = getPackageName("youtube"); if(!CommonUtils.getInstance(context).isInstalled(context,packageName)){ DialogHelper.getBaseDialogWithTextAndTitle("",context,"",new View.OnClickListener(){ @Override public void onClick(View v) { Intent searchIntent= new Intent(Intent.ACTION_VIEW); searchIntent.setData(Uri.parse("market://search?q="+packageName)); context.startActivity(searchIntent); } },new View.OnClickListener(){ @Override public void onClick(View v) { } } ).show(); return; } String[] param = deepLinking.split("&"); Intent webIntent = new Intent(Intent.ACTION_VIEW, Uri.parse("https://************?"+param[param.length-1])); webIntent.setPackage(packageName); context.startActivity(webIntent); }else{ Intent intent = new Intent(); intent.setAction(Intent.ACTION_VIEW); Uri uri = Uri.parse(videoCateContent.getDeep_linking()); intent.setData(uri); context.startActivity(intent); } } } }); holder.itemView.setOnKeyListener(new View.OnKeyListener() { @Override public boolean onKey(View v, int keyCode, KeyEvent event) { // mOnItemKeyListener.OnItemKey(v, keyCode, event, currentPosition); return false; } }); } /* * get app package name * */ public String getPackageName(String title){ Log.e(TAG,"title="+title.substring(0,4)); for(int i=0;i<Constant.packageNames.length;i++){ String packageName = Constant.packageNames[i]; if(packageName.contains(title.substring(0,4).toLowerCase())){ return packageName; } } return null; } @Override public int getItemCount() { return mListOfApps.size(); } class ViewHolder extends RecyclerView.ViewHolder{ LinearLayout ll_movieItem; BoundsImageView mImageView; TextView mTextView; ImageView newImage; ViewHolder(View itemView) { super(itemView); mImageView = itemView.findViewById(R.id.movie_image); mTextView = itemView.findViewById(R.id.movie_title); newImage = itemView.findViewById(R.id.iv_newFlag); } } class AppViewHolder extends RecyclerView.ViewHolder{ BoundsImageView mAppImageView; TextView tv_appName; AppViewHolder(View itemView) { super(itemView); mAppImageView = itemView.findViewById(R.id.iv_app); tv_appName = itemView.findViewById(R.id.tv_appName); } } class ChanneHolder extends RecyclerView.ViewHolder{ BoundsImageView mChannelImg; TextView tv_channelName; public ChanneHolder(View itemView) { super(itemView); mChannelImg = itemView.findViewById(R.id.iv_channel); tv_channelName = itemView.findViewById(R.id.tv_channelName); } } private OnItemSelectListener mOnItemSelectListener; private OnItemClickListener mOnItemClickListener; private OnItemLongClickListener mOnItemLongClickListener; private OnItemKeyListener mOnItemKeyListener; private OnItemNoSelectListener mOnItemNoSelectListener; public interface OnItemSelectListener { void onItemSelect(View view, int position,int bigPosition); } public interface OnItemClickListener { void onItemClick(View view, int position); } public interface OnItemLongClickListener { void onItemLongClick(View view, int position); } public interface OnItemKeyListener { void OnItemKey(View view, int keyCode, KeyEvent event, int position); } public interface OnItemNoSelectListener { void onItemNoSelect(View view, int position,int bigPosition); } public void setOnItemNoSelectListener(OnItemNoSelectListener listener){ mOnItemNoSelectListener = listener; } public void setOnItemSelectListener(OnItemSelectListener listener){ mOnItemSelectListener = listener; } public void setOnItemClickListener(OnItemClickListener mOnItemClickListener) { this.mOnItemClickListener = mOnItemClickListener; } public void setOnItemLongClickListener(OnItemLongClickListener mOnItemLongClickListener) { this.mOnItemLongClickListener = mOnItemLongClickListener; } public void setOnItemKeyListener(OnItemKeyListener mOnItemKeyListener) { this.mOnItemKeyListener = mOnItemKeyListener; } public int getCurrentIndex(){ for(int i=0;i<movieCategories.size();i++){ MovieCategory movieCategory = movieCategories.get(i); if(movieCategory.getMovieItemList().equals(mListOfApps)){ return i; } } return 0; } }
另外一种显示方式:
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