adapter

问题 The text on my spinners is white, and I have no idea why. This is my xml, nothing special <Spinner android:id="@+id/spinner_date" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" /> And my code dateSpinner = (Spinner) findViewById(R.id.spinner_date); selectedDate = calendar.getTime(); List<String> list = new ArrayList<String>(); list.add(formatter.format(selectedDate)); dateAdapter = new ArrayAdapter<String>(mContext, android.R.layout.simple_spinner

问题 What are containers/adapters ? Someone please explain in layman's language . I have tried to look up on the internet but the definitions and explanations are too technical and hard to understand. I have basic knowledge of C++ and its sub-topics like (class/templates/STL). EDIT 1: Can anyone please give me a practical example of the application of containers/adapters? Just for better understanding :-) Thank you. 回答1: <joke> C++ is technical and hard to understand :-D </joke> Containers are

问题 Is it possible for setting more than one adapter to a single list? For example list.setAdapter(adapter1); list.setAdapter(adapter2); 回答1: Maybe you can try attaching multiple adapters to a single adapter like here android attaching multiple adapters to one adapter Or maybe this http://jsharkey.org/blog/2008/08/18/separating-lists-with-headers-in-android-09/ if I understand what you need it for correctly Pls update why you want it for so we have a better understanding 来源： https://stackoverflow

问题 I have been googling and searching to resolve this error for some time and I can`t seem to find out why and how to solve it. I`m using a customAdapter to fill in my listview. I inflate the xml describing my listItem. I make viewHolder object and load in my textview using findViewById. After that i want to set the text of that textview but it findViewbyid returns a null value. So automaticcally resolving into a nullpointerexception. Adapter: /** CLASS : Custom Adapter for the listview */

问题 I have a RecyclerView in my Fragment and I want to pass data from the Fragment to MyAdapter. Please, tell me if there is any way to do this or if there is a better way to do this. public class Monday extends Fragment { protected RecyclerView mRecyclerView; protected RecyclerView.Adapter mAdapter; protected RecyclerView.LayoutManager mLayoutManager; @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View rootView = inflater.inflate(R

问题 While reading up on the Class Adapter pattern in Head First Design Patterns, I came across this sentence: class adapter... because you need multiple inheritance to implement it, which is not possible in Java Just to experiment, I tried the following: interface MyNeededInterface{ public void operationOne(MyNeededInterface other); public MyNeededInterface operationTwo(); } public class ThirdPartyLibraryClass{ public void thirdPartyOp(); } Suppose I create : class ThirdPartyWrapper extends

问题 Can someone show me an example of how to use AlphabetIndexer with a Custom Adapter that uses a getView ? I have it working with a standard adapter, but have no clue how to implement it with a custom adapter. Thanks 回答1: If you're using a LoaderManager to manage your adapter's cursor, you'll want to make a small adjustment and override your adapters swapCursor method: public Cursor swapCursor(Cursor c) { // Create our indexer if (c != null) { mIndexer = new AlphabetIndexer(c, c.getColumnIndex

问题 I am trying to understand Adapter pattern and its use in real world. After going through various articles on internet and www.dofactory.com, I created this sample code. I just want to know whether my understanding is correct. In the example below I have created MSDAO object in the Adaptor class. Later I changed it to OracleDAO. class Client { static void Main(string[] args) { ITarget objAdapter = new Adapter(); object dummyObject = objAdapter.GetData(); } } Interface ITarget { public void

问题 I want to put an gridview with images inside an expandable list...I've already make that, but the gridview don't show all item... How can i make my expandable list child adapt to the gridview size? LIST ADAPTER public class CustomListAdapter extends BaseExpandableListAdapter { String[] catg = { "Administração, Escritorio e Industria", "Cultura e Entretenimento", "Educação e Crianças", "Eventos e Estado do tempo", "Amigos, Familia e Habitações", "Multimédia", "Diversos", "Números e Letras",

问题 How can I increase the timeout value of a Worklight adapter procedure? My app crashes and I see the following in the exception details: "response [/apps/services/api/index/common/query] success: / -secure- {"responseID":"24","errors":["Invocation of procedure 'getFTTitle' has timed out after 30 sec."],"isSuccessful":false,"warnings":[],"info":[]} / " 回答1: There are several places in Worklight where a timeout value can be specified: CLIENT ----> WORKLIGHT SERVER -- (adapter) --> BACKEND You