adapter

问题 Trying to implement RecyclerView into my application, I don't understand why i'm getting "No adapter attached; skipping layout" I thought i clearly set it up in the onCreateView. Some other posts suggested to move it to Oncreate() but when i do that i get many more errors. I followed this tutorial if it helps. Here is my Main Activity class I do not believe this is a duplicate of another question, although it might be similar. when moved to onCreate() the entire application crashes. public

问题 Below is the KeyAdapter I tried to get working to only accept values less than 65535. It seems as though it gets it one keystroke behind where it actually should. For example, If I type "55", the System.out.println will yield "5", doing "3298" will yield "329", etc. // Allows for unsigned short values only KeyAdapter unsignedShortAdapter = new KeyAdapter() { public void keyTyped(KeyEvent e) { char c = e.getKeyChar(); int tempInt = 0; JTextField temp = null; if (!((Character.isDigit(c) || (c =

问题 I have a listView that currently displays the names of images along with a thumb of the image beside it. I highlight the selected textBox green onClick, but while scrolling through the list other items are highlighted as well. ADAPTER: public class CustomListAdapter extends BaseAdapter { private ArrayList<String> data; private Boolean[] isSelected; private Activity activity; private static LayoutInflater inflater=null; public ImageLoader imageLoader; View vi; public CustomListAdapter(Activity

问题 I need to change the port number of a USB serial adapter, i have the following rotine to finding it, now I need to change its portName / COM Number to COM11 for example. I need exactly this, but by C# code: My Computer -> Manage -> Device Manager -> Ports -> Communications Port -> Port Settings -> Advanced -> COM Port Number try { ManagementObjectSearcher searcher = new ManagementObjectSearcher("root\\WMI", "SELECT * FROM MSSerial_PortName"); foreach (ManagementObject queryObj in searcher.Get

问题 I am trying to call notifyDataSetChanged() on my custom adapter but it seems not to be working. Here is my activity :- public class ThreadData extends ListActivity { private static final Uri SMS_URI = Uri.parse("content://sms"); HashMap<Long, BodyType> bodies = new HashMap<Long, BodyType>(); private String name, number; private ListView listView; private Activity activity; ThreadDataAdapter adapter; Handler handler; private Context context; private static final String PHONE_NUMBER_SEPARATORS

问题 I currently have an adapter that takes two images and a text view to add to a listView . I want to change this so that I can add a horizontalScrollView inside each list item that contains the images. Would there be any way to do this? This my current working adapter as described above with two imageView 's and a textView public class MyAdapter extends BaseAdapter { private Context mContext; private List<Bean> mList; private PopupWindow popUpWindow; private LayoutInflater inflater; public

问题 I deserialize an xml using a lot of serializable objects. I have read that in order to avoid not valid AllXsd value in DateTime, I have to create a helper string property which will handle the input as a string and convert it. i.e. [XmlIgnore] public DateTime? DateUpdated { get; set; } [XmlElement("updateDate")] public string DateUpdatedAsText { set { if (!string.IsNullOrWhiteSpace(value)) { try { DateUpdated = DateTime.Parse(value, CultureInfo.InvariantCulture); } catch (Exception) { } } }

问题 There is an antivity extends Activity, there is a listview in this activity to show the data that query from SQlite database. When I longclick one of the listview's items and a alertdialog will show up to make sure that I really want to delete it. But when I delete one of the data,then I query the data again from database and use notifyDataSetChanged() to makethe listview refresh, but it is not work. There's some code in onCreate() serviceListView.setOnItemLongClickListener(new

问题 I have the JSON format of countries and states, how can i add countries in one Spinner and get corresponding state in another spinner , my JSON format of counties and state is: [ { "Country": "Afghanistan", "State": [ "Badakhshan", "Badgis", "Baglan", "Balkh", "Bamiyan", "Farah", "Faryab", "Gawr", "Gazni", "Herat", "Hilmand", "Jawzjan", "Kabul", "Kapisa", "Khawst", "Kunar", "Lagman", "Lawghar", "Nangarhar", "Nimruz", "Nuristan", "Paktika", "Paktiya", "Parwan", "Qandahar", "Qunduz", "Samangan"

问题 I have a RecyclerView Adapter which needs to implement OnClick listeners on several of the views inside each item. However, the OnClick listener needs to change a variable outside of the listener, but this is a problem since it can only use final variables inside the OnClick listener. Here is my code where I implements the OnClick listener: @Override public void onBindViewHolder(ViewHolder holder, int position) { final boolean liked = false; holder.button.setOnClickListener(new View