android-recyclerview

问题 This question already has answers here : Fragment is not being replaced but put on top of the previous one (15 answers) Closed last year . As can be observed by the gif when scrolled the the eariler child remain in the place this started code worked well when used in the activity but when placed in fragment this issue occurs. Below are files any suggestion or change is much appreciated. Main2.java public class Main2 extends AppCompatActivity { String Tag="Main2"; @Override protected void

问题 I have tried everything from the answers to the questions on stackoverflow, but I still could not figure this out. In one of my recyclerview, I was able to scroll to the desired position after a click of a button. On a different recyclerview (it was built similar to the first one), I was not able to scroll to the desired position. This is the code for the recyclerview that worked: LinearLayoutManager layoutManager = new LinearLayoutManager(getContext()); layoutManager.setOrientation

问题 In my RecyclerView, there's plenty of objects, including Switch. How do I toggle one of the switch in the RecyclerView, if I know the index (location) of which switch I want to toggle? Just in case, here's the content of my RecyclerView <?xml version="1.0" encoding="utf-8"?> <android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android" xmlns:card_view="http://schemas.android.com/apk/res-auto" android:id="@+id/cvExpenses" android:layout_height="wrap_content"

问题 Im following a tutorial in on recyclerview found here http://javatechig.com/android/android-recyclerview-example I have modified it to suit me needs, except for one thing, the MainActivity in this, I need to be in a fragment, not Activity. Here is my Fragment as it sits now: public class FeedZooperListFragment extends Fragment { private static final String TAG = "RecyclerViewExample"; private List<FeedZ> feedItemList = new ArrayList<FeedZ>(); //added static might remove private static

问题 Im trying show a toast msg when clicked on a item from my RecycleView, Ive tried many examples, but its not giving me anything. Can somebody give me a different example that i can follow, at the end i wanna set the onClick to show a new fragment. If I can get an example on that, it will be great. Im using this code: public class MovieAdapter extends RecyclerView.Adapter<MovieAdapter.ViewHolder> { private List<Movie> movies; private int card_layout; private Context mContext; public

问题 Once I write a ListView demo, the ListView 's items have some different types. item1: Text Pic Pic Pic Pic Pic Pic item2: Text Pic Pic Pic Pic item3: Text Pic Pic Pic Pic Pic Pic Pic Pic Pic ... So I override the getViewTypeCount() and getItemViewType() .It work well. But Now I change to use RecyclerView . Is there a better solution?Please help me. 回答1: use getItemCount() { //pojo class array size return mDataset.size(); } 回答2: This is sample, you can create an item view with a textview and

问题 I have a dialog which takes in user input through a list with checkboxes, whose layout is a RecyclerView . But when I select a CheckBox in the list, another CheckBox further down in the list also gets checked, but which I didn't do. These images will help illustrate my point. Here, I've only selected Calendar and Camera: but further down in the list, Google and Maps also get selected which I didn't select. My code for bindActivity is: public void bindActivity(ResolveInfo resolveInfo) {

问题 Let's say for vocSpinner value = "Combat/Service" and popSpinner value = "NSmen" and I check cb1. It will give a list. However, when I change popSpinner to "Regular/NSF" it will change to another list (which is correct) but how do I uncheck the checkbox as well without creating another data that overlay. The codes I provided doesn't seem to work and I can't work it out. All help are welcome, thanks in advance! imgur.com/a/1wt4N [Screenshot of app] private String[] vocSpinner; private String[]

问题 I have problem with my Header I want include all, because I want a footer static. I try show in : screens 3.7 show correctly Screen > 4.0 show incorrectly My adapter (Only put header full with footer) if (viewType == TYPE_HEADER) { View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.header,parent,false); //Inflating the layout ViewHolder vhHeader = new ViewHolder(v,viewType,context); //Creating ViewHolder and passing the object of type view return vhHeader; //returning the

问题 So first things first, here's the error that I'm getting: java.lang.IllegalStateException: The application's PagerAdapter changed the adapter's contents without calling PagerAdapter#notifyDataSetChanged! Expected adapter item count: 18, found: 28 I'm using a RecyclerView in my main activity and that has a List<Objects> as the dataset, that's all fine. From that activity I call the second activity when a RecyclerView item is clicked that is basically a gallery implemented using a ViewPager