adapter

问题 There is a gridview in which I want to display a image. I want to use this json below to diplay image in my gridview. I have an ImageAdapter class in ImageAdapter class I have AsynTask that get json but I don't know how to using it to diplaly image in gridview. How can I display image using this json? {"countries":[{"id":"1","first_name":"man","last_name":"woman","username":"man","password":"4f70432e636970de9929bcc6f1b72412","email":"man@gmail.com","photo":"http:\/\/vulcan.wr.usgs.gov\/Imgs\

问题 I want to get text of checked checkbox in listview and transfer them to second activity on button click ..i need some code to do this....this is what i done so far.. check the pictures...ListView1 and ListView2 this is activity_main.xml <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin" android

问题 I am creating android app that populates the list of GPS co-ordinates which was entered by the user using custom adapter like this SELECTION LAT LONG DISTANCE ------------------------------------------------- checkbox1 123.4546 456.48751 Text checkbox2 123.4546 456.48751 Text checkbox3 123.4546 456.48751 Text checkbox4 123.4546 456.48751 Text If user selects the check-box 1 then i have to find the distance from check-box 1 lat long to check-box 2,check-box 3,check-box-4 lat long .Here i need

问题 I'm facing an issue with my recyclerview, which has a custom adapter. Issue is that when the activity opens, recyclerview is empty. When user types anything on SearchView's text field, recyclerview gets populated and stays populated without any problems. I tried to change place of some code to fix this issue, yet no success. I've added the current and desired state screenshots below the codes. Thanks in advance. AddCourseActivity: public class AddCourseActivity extends AppCompatActivity{

问题 I want to upgrade the version of MobileFirst from WL v6.2 to MFP v8. The actual implementation uses a JMS Adapter for reading messages from a IBM MQ Queue to send push notification. MFP v8 no longer offers this kind of adapter and I would like to know what is the best way to read message from a Queue with the newest version. Thanks, Stefano 回答1: Because JMS support is currently not supported, your best bet IMO would be to create your own JMS client in a Java adapter and handle it on your own

问题 I have two arraylist. Arraylist one contains list of usrs in my chat app ArrayList Two contains list of Groups in my chat app What i am trying to do here is i want add user list with list of groups in my chat app. This is my first arraylist: Here User is my model class userMap is HashMap which has all th User list ArrayList<User> users = new ArrayList<User>(); for (User user : SocketSingleton.userMap.values()) { if (user.getId() != loggedUserId) { users.add(user); } } Adapter for my first

问题 In the app I am currently building I have been synchronizing ListViews with unbound Lists of data via BaseAdapter. This has been working so far but now I need to have a list of data inside a ScrollView. The problem with putting a ListView inside a ScrollView is that both views scroll and it make the activity difficult to navigate. From what I've read online the consensus seems to be that ListViews should never be put inside of scroll views for this reason, and that a LinearLayout or

问题 I am trying to fill my Gridview with some TextViews and Imageviews . I did it successfully, but when I scroll down in the grid, the images change their postion. I have read some other questions related to the same issue; like this one question, but it did not help me. Aadapter public class ItemListBaseAdapter extends BaseAdapter { private static ArrayList<ItemDetails> itemDetailsrrayList; private LayoutInflater l_Inflater; private Context context; // private OnClickListener listner; public

问题 I have a listview with custom array adapter, the view allows the user to change a variable up and down with some plus and minus buttons I implemented now the problem is that the plus/minus buttons will change the view ONCE, but after that time it won't update until the view is refreshed a different way. like using an listview.notifydatasetchanged() in an external operation. when it updates, it shows that the plus/minus buttons WERE registering clicks and updating the variable, because on

问题 I am going to load more data in my list view. I can load more data but it will remove previous data. What should i do to append data in my list view ? Here is my source code: OnCreate Method in MainActivity Class protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.recentposts); lv = (ListView) findViewById(R.id.list); //LoadContent(); lv.setOnScrollListener(new OnScrollListener() { @Override public void onScrollStateChanged