我正在尝试创建一个Youtube视频Listview,它通过提供特定的URL来静态工作,但是我想使用JSON动态地进行操作。
这是我的代码:
public class ActivityVideos extends DrawerActivity{
private static final String TAG = ActivityVideos.class.getSimpleName();
private static final String url = Util.VIDEO_URL;
private ProgressDialog pDialog;
private List<VideoModel> videoList = new ArrayList<VideoModel>();
//private ListView listView;
RecyclerView listView;
//private VideoAdapter adapter;
RecyclerAdapter adapter;
//private String bitmap = "thumbnailUrl";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_videos);
listView = (RecyclerView) findViewById(R.id.list);
listView.setHasFixedSize(true);
//to use RecycleView, you need a layout manager. default is LinearLayoutManager
LinearLayoutManager linearLayoutManager = new LinearLayoutManager(this);
linearLayoutManager.setOrientation(LinearLayoutManager.VERTICAL);
listView.setLayoutManager(linearLayoutManager);
adapter = new RecyclerAdapter(ActivityVideos.this,videoList);
listView.setAdapter(adapter);
pDialog = new ProgressDialog(this);
// Showing progress dialog before making http request
pDialog.setMessage("Loading...");
pDialog.show();
// Creating volley request obj
JsonArrayRequest videoReq = new JsonArrayRequest(url,
new Response.Listener<JSONArray>() {
@Override
public void onResponse(JSONArray response) {
Log.d(TAG, response.toString());
hidePDialog();
// Parsing json
for (int i = 0; i < response.length(); i++) {
try {
JSONObject obj = response.getJSONObject(i);
VideoModel msg = new VideoModel();
msg.setVideoUrl(Util.VIDEO_URL+obj.getString("img"));
videoList.add(msg);
} catch (JSONException e) {
e.printStackTrace();
}
}
// notifying list adapter about data changes
// so that it renders the list view with updated data
adapter.notifyDataSetChanged();
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
VolleyLog.d(TAG, "Error: " + error.getMessage());
hidePDialog();
}
});
// Adding request to request queue
AppController.getInstance().addToRequestQueue(videoReq);
//gridView.setOnItemClickListener(this);
/*listView.setLongClickable(true);
listView.setOnItemLongClickListener(this);*/
}
@Override
public void onDestroy() {
super.onDestroy();
hidePDialog();
}
private void hidePDialog() {
if (pDialog != null) {
pDialog.dismiss();
pDialog = null;
}
}
这是我的适配器:
public class RecyclerAdapter extends RecyclerView.Adapter<RecyclerAdapter.MyViewHolder> {
//these ids are the unique id for each video
//String[] videoItems = {"P3mAtvs5Elc", "nCgQDjiotG0", "P3mAtvs5Elc"};
Context ctx;
private Activity activity;
private List<VideoModel> videoItems;
public RecyclerAdapter(Context context,List<VideoModel> videoItems)
{
this.ctx = context;
this.videoItems = videoItems;
}
@Override
public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
//View itemView = LayoutInflater.from(parent.getContext()).inflate(R.layout.activity_recycler_adapter, parent, false);
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.activity_recycler_adapter, null);
MyViewHolder viewHolder = new MyViewHolder(view);
return viewHolder;
//return new VideoInfoHolder(itemView);
}
@Override
public void onBindViewHolder(final MyViewHolder holder, final int position) {
final YouTubeThumbnailLoader.OnThumbnailLoadedListener onThumbnailLoadedListener = new YouTubeThumbnailLoader.OnThumbnailLoadedListener(){
@Override
public void onThumbnailError(YouTubeThumbnailView youTubeThumbnailView, YouTubeThumbnailLoader.ErrorReason errorReason) {
}
@Override
public void onThumbnailLoaded(YouTubeThumbnailView youTubeThumbnailView, String s) {
youTubeThumbnailView.setVisibility(View.VISIBLE);
holder.relativeLayoutOverYouTubeThumbnailView.setVisibility(View.VISIBLE);
}
};
holder.youTubeThumbnailView.initialize(Config.YOUTUBE_API_KEY, new YouTubeThumbnailView.OnInitializedListener() {
@Override
public void onInitializationSuccess(YouTubeThumbnailView youTubeThumbnailView, YouTubeThumbnailLoader youTubeThumbnailLoader) {
youTubeThumbnailLoader.setVideo((videoItems.get(position));
youTubeThumbnailLoader.setOnThumbnailLoadedListener(onThumbnailLoadedListener);
}
@Override
public void onInitializationFailure(YouTubeThumbnailView youTubeThumbnailView, YouTubeInitializationResult youTubeInitializationResult) {
//write something for failure
}
});
}
@Override
public int getItemCount() {
return videoItems.size();
}
/*public class VideoInfoHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
protected RelativeLayout relativeLayoutOverYouTubeThumbnailView;
YouTubeThumbnailView youTubeThumbnailView;
protected ImageView playButton;
public VideoInfoHolder(View itemView) {
super(itemView);
playButton=(ImageView)itemView.findViewById(R.id.btnYoutube_player);
playButton.setOnClickListener(this);
relativeLayoutOverYouTubeThumbnailView = (RelativeLayout) itemView.findViewById(R.id.relativeLayout_over_youtube_thumbnail);
youTubeThumbnailView = (YouTubeThumbnailView) itemView.findViewById(R.id.youtube_thumbnail);
}
@Override
public void onClick(View v) {
Intent intent = YouTubeStandalonePlayer.createVideoIntent((Activity) ctx, Config.YOUTUBE_API_KEY, videoItems[getLayoutPosition()],100,true,false);
ctx.startActivity(intent);
}
}*/
public class MyViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener{
protected RelativeLayout relativeLayoutOverYouTubeThumbnailView;
protected ImageView playButton;
YouTubeThumbnailView youTubeThumbnailView;
public MyViewHolder(View view) {
super(view);
playButton = (ImageView)view.findViewById(R.id.btnYoutube_player);
playButton.setOnClickListener(this);
relativeLayoutOverYouTubeThumbnailView = (RelativeLayout)view.findViewById(R.id.relativeLayout_over_youtube_thumbnail);
youTubeThumbnailView = (YouTubeThumbnailView)view.findViewById(R.id.youtube_thumbnail);
}
@Override
public void onClick(View v) {
Intent intent = YouTubeStandalonePlayer.createVideoIntent((Activity) ctx, Config.YOUTUBE_API_KEY, videoItems,100,true,false);
ctx.startActivity(intent);
}
}
}
我在以下方面遇到问题:
youTubeThumbnailLoader.setVideo((videoItems.get(position));
和
Intent intent = YouTubeStandalonePlayer.createVideoIntent((Activity)ctx, Config.YOUTUBE_API_KEY, videoItems, 100, true, false);
问题是,我都没有得到videoItems,那里需要String参数,但是我有一个列表。
有什么解决办法吗?
最佳答案
正确的方法是在Adapter构造函数中发送类似于参数的Listener来控制抽头。
在您的解决方案中,您可以在onBindViewHolder
方法中执行以下操作:
holder.playButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = YouTubeStandalonePlayer.createVideoIntent((Activity) ctx, Config.YOUTUBE_API_KEY, videoItems.get(position).getURL(),100,true,false);
ctx.startActivity(intent);
}
});
我希望这有帮助。
关于android - 在Android中使用YouTube视频自定义ListView,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/38274853/