我在Google上搜索了很多，但似乎无法找到任何解决方案。
我正在使用YouTubeAndroidPlayerApi。我正在尝试在ListView中显示YouTube视频列表。
我有一个片段类，如下所示 -
public class GalleryFragment extends Fragment{
ProgressDialog pd;
private static final String API_KEY = Config.DEVELOPER_KEY;
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
ViewGroup root = (ViewGroup) inflater.inflate(R.layout.gallery_layout,
null);
Bundle bundle = this.getArguments();
int user_id = bundle.getInt("user_id", 0);
TextView txtNoGallery = (TextView) root.findViewById(R.id.txtNoGallery);
txtNoGallery.setVisibility(View.INVISIBLE);
String strUrl = getString(R.string.saltchip_gallery_url)+"?
user_id="+user_id;
if(user_id!=0) {
if (connectionAvailable()) {
new GetDataFromServerTask().execute(strUrl);
} else
Toast.makeText(getActivity(), "No internet connection",
Toast.LENGTH_LONG).show();
}else{
Toast.makeText(getActivity(),"Error Provessing. Please try again
later",Toast.LENGTH_SHORT).show();
Intent objDash = new Intent(getActivity(),DashboardActivity.class);
startActivity(objDash);
}
return root;
}
public boolean connectionAvailable() {
boolean connected = false;
ConnectivityManager cm = (ConnectivityManager)
getActivity().getSystemService(Context.CONNECTIVITY_SERVICE);
if (cm.getNetworkInfo(ConnectivityManager.TYPE_MOBILE).getState() ==
NetworkInfo.State.CONNECTED ||
cm.getNetworkInfo(ConnectivityManager.TYPE_WIFI).getState() ==
NetworkInfo.State.CONNECTED) {
connected = true;
}
return connected;
}
public class GetDataFromServerTask extends AsyncTask<String, Void,
String> {
@Override
protected void onPreExecute() {
super.onPreExecute();
pd = ProgressDialog.show(getActivity(), getString(R.string.app_name),
"Fetching information....");
pd.setCancelable(false);
}
@Override
protected String doInBackground(String... params) {
api_service wa = new api_service();
try {
return wa.getData(params[0]);
} catch (Exception e) {
return e.toString();
}
}
@Override
protected void onPostExecute(String s) {
super.onPostExecute(s);
pd.dismiss();
TextView txtNoGallery = (TextView)
getActivity().findViewById(R.id.txtNoGallery);
try {
JSONArray fetchedResponse = new JSONArray(s);
JSONObject json_data;
if (fetchedResponse != null) {
List<Gallery> listGallery = new ArrayList<Gallery>();
for (int i = 0; i < fetchedResponse.length(); i++) {
json_data = null;
json_data = fetchedResponse.getJSONObject(i);
String gallery_item_type = json_data.getString("type");
String imgPath = null;
String vidPath = null;
if(gallery_item_type.equals("image"))
imgPath = json_data.getString("0");
else if(gallery_item_type.equals("video"))
vidPath = json_data.getString("0");
listGallery.add(new Gallery(imgPath,vidPath,gallery_item_type));
}
ListView grid = (ListView) getActivity().findViewById(R.id.gridGallery);
ListGallery adapter = new
ListGallery(getContext(),R.layout.gallery_single,listGallery);
grid.setAdapter(adapter);
} else {
txtNoGallery.setVisibility(View.VISIBLE);
txtNoGallery.setText("There are not items in your Gallery");
}
} catch (JSONException e) {
StringWriter sw = new StringWriter();
e.printStackTrace(new PrintWriter(sw));
String exceptionAsString = sw.toString();
Toast.makeText(getContext(), "Error. Please try again later",
Toast.LENGTH_LONG).show();
}
}
}
}
我的适配器类如下 -
public class ListGallery extends ArrayAdapter<Gallery> {
public ListGallery(Context context, int resource, List<Gallery> objects)
{
super(context, 0, objects);
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
Gallery gallery = getItem(position);
try {
LayoutInflater inflater = (LayoutInflater)mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(R.layout.gallery_single,parent,false);
if(gallery.gallery_item_type.equals("image"))
{
FrameLayout youTubePlayerView = (FrameLayout)
convertView.findViewById(R.id.vidGalleryItem);
youTubePlayerView.setVisibility(View.GONE);
ImageView imgGalleryItem = (ImageView)
convertView.findViewById(R.id.imgGalleryItem);
imgGalleryItem.setVisibility(View.VISIBLE);
}
else if(gallery.gallery_item_type.equals("video"))
{
ImageView imgGalleryItem = (ImageView)
convertView.findViewById(R.id.imgGalleryItem);
imgGalleryItem.setVisibility(View.GONE);
String strVideoUrl = gallery.vidPath;
String VIDEO_ID = getYoutubeVideoId(strVideoUrl);
VideoFragment videoFragment = VideoFragment.newInstance(VIDEO_ID);
}
}
catch (Exception e)
{
System.out.println("Get ViewException - "+e.getMessage());
e.printStackTrace();
}
return convertView;
}
public static String getYoutubeVideoId(String youtubeUrl)
{
String video_id="";
if (youtubeUrl != null && youtubeUrl.trim().length() > 0 &&
youtubeUrl.startsWith("http"))
{
String expression = "^.*((youtu.be"+ "\\/)" + "|(v\\/)|(\\/u\\/w\\/)|
(embed\\/)|(watch\\?))\\??v?=?([^#\\&\\?]*).*"; // var regExp = /^.*
((youtu.be\/)|(v\/)|(\/u\/\w\/)|(embed\/)|(watch\?))\??v?=?
([^#\&\?]*).*/;
CharSequence input = youtubeUrl;
Pattern pattern = Pattern.compile(expression,Pattern.CASE_INSENSITIVE);
Matcher matcher = pattern.matcher(input);
if (matcher.matches())
{
String groupIndex1 = matcher.group(7);
if(groupIndex1!=null && groupIndex1.length()==11)
video_id = groupIndex1;
}
}
return video_id;
}
}
我的布局如下 -
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:descendantFocusability="blocksDescendants"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<TextView
android:id="@+id/txtNoGallery"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<ListView
android:id="@+id/gridGallery"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
</LinearLayout>
我的行布局项目文件如下 -
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:descendantFocusability="blocksDescendants"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:id="@+id/imgGalleryItem"
android:layout_width="150dip"
android:layout_height="150dip"
android:src="@drawable/default_dp"
android:scaleType="fitCenter"/>
<fragment
android:name="com.google.android.youtube.player.YouTubePlayerSupportFragm
ent"
android:id="@+id/vidGalleryItem"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
</LinearLayout>
但是在加载片段时，我得到一个黑色的黑色屏幕，在滚动时会出现以下错误 -
获取ViewException - 二进制XML文件行＃33：错误膨胀类片段 android.view.InflateException：二进制XML文件行＃33：错误膨胀类片段
在android.view.LayoutInflater.createViewFromTag（LayoutInflater.java:704）
在android.view.LayoutInflater.rInflate（LayoutInflater.java:746）
在android.view.LayoutInflater.inflate（LayoutInflater.java:489）
在android.view.LayoutInflater.inflate（LayoutInflater.java:396）
at com.mubin.khalife.saltchip.ListGallery.getView（ListGallery.java:32）
在android.widget.AbsListView.obtainView（AbsListView.java:2159）
在android.widget.ListView.makeAndAddView（ListView.java:1831）
在android.widget.ListView.fillDown（ListView.java:674）
在android.widget.ListView.fillGap（ListView.java:638）
在android.widget.AbsListView.trackMotionScroll（AbsListView.java:4930）
在android.widget.AbsListView.onGenericMotionEvent（AbsListView.java:3640）
在android.view.View.dispatchGenericMotionEventInternal（View.java:7341）
在android.view.View.dispatchGenericMotionEvent（View.java:7322） 在android.view.ViewGroup.dispatchTransformedGenericPointerEvent（ViewGroup.java:1782）
在android.view.ViewGroup.dispatchGenericPointerEvent（ViewGroup.java:1735）
在android.view.View.dispatchGenericMotionEvent（View.java:7315）
在android.view.ViewGroup.dispatchTransformedGenericPointerEvent（ViewGroup.java:1782）
在android.view.ViewGroup.dispatchGenericPointerEvent（ViewGroup.java:1735）
在android.view.View.dispatchGenericMotionEvent（View.java:7315）