adapter

问题 I made the following adapter which I used before to create rows that are the same all the time. I removed the creation of the textviews and imageviews. What I want to achieve is to create different rows depending on the key. A row could contain text and an image while another row only has text. How would I be able to do that? public class DetailsListAdapter extends ArrayAdapter<ArrayList<String>> { private Context context; private ArrayList<String> keys; public DetailsListAdapter(Context

问题 This question addresses fundamentally the same problem as Old Version Its re-written, because the code is much more readable, and i changed the adapter from a BaseAdapter extension to a ListAdapter interface implementation (wich was pointless). I have this weird problem with position variable inside getView method of the adapter. 4 of those 6 different view types, got a button inside them. That button sends a message to a service (provoking some async stuff on the service), and within an

问题 I have a TabInterface.java which hosts five tabs. In one of the tab, I am using subactivities.When I click on the AddBook tab (which extends ActivityGroup) the search book page loads properly. When I click on search button a list of books is generated. When I click on the book, a new page must open but its program is running properly but not displaying any thing on the screen. TabInterface.java public class TabInterface extends TabActivity { super.onCreate(savedInstanceState); setContentView

问题 Inside OnBindViewHolder of my RecyclerView Adapter , I got multiple items. One of those (ITEM_TRATAMENTOS) got a setOnClickListener which has the purpose of create an LinearLayout when I click in an button (add_field_btn). The problem is that the only argument of getSystemService is unresolved ( Context.LAYOUT_INFLATER_SERVICE ). In ViewPagers it works fine, but inside OnBindViewHolder, it's not the case. ITEM_TRATAMENTOS ->{ val viewHolderTratamentos = holder as ViewHolderItemTratamentos

问题 I have 2 activity and when click on first activity to be converted to second activity it's Main2Activity inside 2nd activity I am trying to make many ListView and each one contains pictures and text, each ListView inside one specific adapter but i get a problem for represent ( adapterType1 , adapterType2 ) both adapters ( adapterType1 , adapterType2 ) return the same value of ( adapterType1 ),and i wanna to return two different result for ( adapterType1 ) and ( adapterType2 )? Here is a

问题 I have an android app in which users can like and unlike an image.I'm using recyclerView.I Just disable the button(Like/Unlike) once user clicked. Problem, when I click on button like , the apps go to main activity and the button Like doesn't change to unlike What I have done : 1 ) layout that holds the each recycler view layout item 2 ) A view holder for creating each layout 3 ) A Model Class to holds the data 4 ) Recycler Adaptor which deals with the data for the Each Layout item Hier ist

问题 I am new to recycler view widget , i want to get my data from my api url and list the data into my recycler view , i have these classes : recyclerAdapter , recyclerView , MainActivity , row . the data is loaded from api succesfully but the does not set the json string received from the api in the recycler view , and the recycler view is shown white and empty . any body can find the problem in my code ? MainActivity.java code is : public class MainActivity extends AppCompatActivity { final

问题 In my app I have a boolean variable inside my json response. [ { "id" : "001", "firstName" : "Mark", "lastName" : "Mason", "role" : "CEO", "profileImageURL" : "http://developers.mub.lu/resources/profilePlaceholder.png" }, { "teamName" : "iOS", "members" : [ { "id" : "002", "firstName" : "Olly", "lastName" : "Berry", "role" : "iOS Team Lead", "profileImageURL" : "http://developers.mub.lu/resources/profilePlaceholder.png", "teamLead" : true }, { "id" : "003", "firstName" : "James", "lastName" :

问题 I am writing an adapter to combine two APIs (one in C and another in C++). If a function is called on the one API I need to pass the callers ID and the function's arguments to an adapter and call the according function with this information passed. Now aparently they can not be mapped directly as one interface requires C++ compilation and the name mangling would screw the other so that is why I am using a set of adapters in the first place. As the number of arguments varies, I looked up

问题 I have code that should populate my ListView in my UrlListFragment, but when I run it I see no effect. I put the problem aside to work on my WebView, and found that once I load a URL it uses the entire screen. I'm not sure if this means my ListView isn't being populated, so it doesn't take up space, so the WebView takes up the entire screen, or if the WebView is taking up the entire screen regardless of whether the ListView is being populated or not. I populate my ListView like this: View