我正在努力制作可以刷卡的应用程序。我使用了这个sample。
当我从Drawable资源获取图像时工作正常，但是当我从web设置图像时，viewHolder.cardImage没有设置。
viewHolder.cardImage根本没有出现，虽然flingContainer的事件是在从onButton click函数调用时调用的。
在我出错的地方没有任何提示。
以下是代码：
public class MatchesFragmentPlay extends Fragment implements FlingCardListener.ActionDownInterface {
private static final String TAG = "MatchesFragmentPlay";
public static final String[] NAMES = new String[] { "Emily Rose", "Cherry", "Anderson", "Laius" };
public static final int[] AGES = new int[] {20, 22, 25, 18 };
public static final int[] RATINGS = new int[] {8, 7, 7, 6 };
public static final Integer[] IMAGES = { R.drawable.lady, R.drawable.lady2, R.drawable.lady3, R.drawable.lady4 };
public static final Integer[] LIKES = { 0, 0, 0, 0 };
public static final Integer[] DOTS = { R.id.rating_dot_one, R.id.rating_dot_two, R.id.rating_dot_three, R.id.rating_dot_four,
R.id.rating_dot_five, R.id.rating_dot_six, R.id.rating_dot_seven, R.id.rating_dot_eight,
R.id.rating_dot_nine, R.id.rating_dot_ten};
private CallBack networkCallback;
private static String responseObj;
private Bitmap bitmap = null;
// NEW
public static MyAppAdapter myAppAdapter;
public static ViewHolder viewHolder;
private ArrayList<UserMatchesPlay> al;
private SwipeFlingAdapterView flingContainer;
public static UserMatchesPlay obj;
public ImageView matchesPlayBackground;
public TextView matchesPlayUserName, matchesPlayUpgradeToPremium;
CircleImageView matchesPlayDisLike, matchesPlayLike;
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container,
@Nullable Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_matches_play, container, false);
return view;
}
@Override
public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
Bundle inBundle = getActivity().getIntent().getExtras();
String fb_id = inBundle.get("fb_id").toString();
Log.d(TAG, "fb_id: "+fb_id);
String name = inBundle.get("name").toString();
String surname = inBundle.get("surname").toString();
String imageUrl = inBundle.get("imageUrl").toString();
flingContainer = (SwipeFlingAdapterView) view.findViewById(R.id.matches_play_frame);
matchesPlayBackground = (ImageView)view.findViewById(R.id.matches_play_background);
matchesPlayUserName = (TextView) view.findViewById(R.id.matches_play_user_name);
matchesPlayUpgradeToPremium = (TextView) view.findViewById(R.id.matches_play_upgradeToPremium);
matchesPlayDisLike = (CircleImageView)view.findViewById(R.id.matches_play_dislike);
matchesPlayLike = (CircleImageView)view.findViewById(R.id.matches_play_like);
String premiumText="For Rating Upgrade to Premium";
SpannableString content = new SpannableString(premiumText);
content.setSpan(new UnderlineSpan(), 0, premiumText.length(), 0);
matchesPlayUpgradeToPremium.setText(content);
matchesPlayDisLike.setImageResource(R.drawable.dislike_enable);
matchesPlayDisLike.setBorderColor(Color.parseColor("#FFD1D5D9"));
matchesPlayDisLike.setBorderWidth(5);
matchesPlayLike.setImageResource(R.drawable.like_enable);
matchesPlayLike.setBorderColor(Color.parseColor("#FFD1D5D9"));
matchesPlayLike.setBorderWidth(5);
matchesPlayDisLike.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
left();
}
});
matchesPlayLike.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
right();
}
});
al = new ArrayList<>();
networkCallback = new CallBack() {
@Override
public void onProgress() {}
@Override
public void onResult(String result) {
responseObj = result;
Log.i(TAG, "responseData: "+responseObj);
JsonParser jsonParser = new JsonParser();
JsonElement element = jsonParser.parse(responseObj);
JSONObject usersObj, userObj;
JSONArray usersArray;
try {
usersObj = new JSONObject(element.toString());
usersArray = usersObj.getJSONArray("users");
for (int i=0; i<usersArray.length(); i++){
userObj = usersArray.getJSONObject(i);
String [] _images = {userObj.getString("img_path_1"), userObj.getString("img_path_2"), userObj.getString("img_path_3"), userObj.getString("img_path_4"), userObj.getString("img_path_5"), userObj.getString("img_path_6")};
al.add(new UserMatchesPlay(userObj.getString("uid"), userObj.getString("name"), userObj.getString("age"), userObj.getString("rate"), userObj.getString("img_path_1"), "0"));
}
Log.i(TAG, "arrayList (Size): "+al.size());
myAppAdapter = new MyAppAdapter(al, getActivity());
flingContainer.setAdapter(myAppAdapter);
myAppAdapter.notifyDataSetChanged();
flingContainer.setFlingListener(new SwipeFlingAdapterView.onFlingListener() {
@Override
public void removeFirstObjectInAdapter() {
}
@Override
public void onLeftCardExit(Object dataObject) {
al.remove(0);
myAppAdapter.notifyDataSetChanged();
Toast.makeText(getActivity(), "Left Swipe ", Toast.LENGTH_SHORT).show();
//Do something on the left!
//You also have access to the original object.
//If you want to use it just cast it (String) dataObject
}
@Override
public void onRightCardExit(Object dataObject) {
al.remove(0);
myAppAdapter.notifyDataSetChanged();
Toast.makeText(getActivity(), "Right Swipe ", Toast.LENGTH_SHORT).show();
}
@Override
public void onAdapterAboutToEmpty(int itemsInAdapter) {
}
@Override
public void onScroll(float scrollProgressPercent) {
View view = flingContainer.getSelectedView();
}
});
flingContainer.setOnItemClickListener(new SwipeFlingAdapterView.OnItemClickListener() {
@Override
public void onItemClicked(int itemPosition, Object dataObject) {
View view = flingContainer.getSelectedView();
Toast.makeText(getActivity(), "Clicked: "+itemPosition+" "+String.valueOf(dataObject),Toast.LENGTH_SHORT).show();
UserMatchesPlay userMatchesPlay = obj;
Intent intent = new Intent(getActivity(), ProfileActivity.class);
intent.putExtra("user_matches_play_obj", userMatchesPlay);
startActivity(intent);
myAppAdapter.notifyDataSetChanged();
}
});
} catch (JSONException e) {
e.printStackTrace();
}
}
@Override
public void onCancel() {
// TODO Auto-generated method stub
}
};
HTTPAsyncTask asyncTask = new HTTPAsyncTask(getActivity(), networkCallback, null, null, "GET");
asyncTask.execute(Config.GET_USERS_BY_LAT_LNG+fb_id);
}
@Override
public void onActionDownPerform() {
Log.e("action", "bingo");
}
public void right() {
flingContainer.getTopCardListener().selectRight();
}
public void left() {
flingContainer.getTopCardListener().selectLeft();
}
public static class ViewHolder {
public ImageView cardImage;
public FrameLayout background_frame;
}
public class MyAppAdapter extends BaseAdapter {
public List<UserMatchesPlay> parkingList;
public Context context;
private MyAppAdapter(List<UserMatchesPlay> apps, Context context) {
this.parkingList = apps;
this.context = context;
}
@Override
public int getCount() {
return parkingList.size();
}
@Override
public Object getItem(int position) {
return position;
}
@Override
public long getItemId(int position) {
return position;
}
@TargetApi(Build.VERSION_CODES.JELLY_BEAN)
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
View rowView = convertView;
if (rowView == null) {
System.out.println("rootView is null");
LayoutInflater inflater = getActivity().getLayoutInflater();
rowView = inflater.inflate(R.layout.match_play_image_item, parent, false);
viewHolder = new ViewHolder();
viewHolder.background_frame = (FrameLayout) rowView.findViewById(R.id.matches_play_item_frame);
viewHolder.cardImage = (ImageView) rowView.findViewById(R.id.cardImage);
rowView.setTag(viewHolder);
} else {
System.out.println("rootView is not null");
viewHolder = (ViewHolder) convertView.getTag();
}
String text = parkingList.get(0).getName()+" ("+parkingList.get(0).getAge()+" years)";
System.out.println("Text: "+text);
matchesPlayUserName.setText(text);
Log.d(TAG, (viewHolder.cardImage == null)+ " IMG_PATH: "+Config.IMG_LINK_1+parkingList.get(position).getImage());
new DownloadImage(viewHolder.cardImage).execute(Config.IMG_LINK_1+parkingList.get(position).getImage());
Glide.with(getActivity()).load(Config.IMG_LINK_1+parkingList.get(position).getImage()).into(viewHolder.cardImage);
return rowView;
}
}}