android-recyclerview

问题 I followed the recyclerview guidelines and built one for the app I am making, but it does not scroll to the bottom for some reason. I compared it with google code snippets, as well as other code snippets online and can't see the difference. I have posted a picture and the code I am using. I am using tabs, therefore the recyclerview is populated in a fragment. What the app looks like: http://imgur.com/H5uOLFR the adapter class: public class MyAdapter extends RecyclerView.Adapter<MyAdapter

问题 I followed the recyclerview guidelines and built one for the app I am making, but it does not scroll to the bottom for some reason. I compared it with google code snippets, as well as other code snippets online and can't see the difference. I have posted a picture and the code I am using. I am using tabs, therefore the recyclerview is populated in a fragment. What the app looks like: http://imgur.com/H5uOLFR the adapter class: public class MyAdapter extends RecyclerView.Adapter<MyAdapter

问题 I want my RecyclerView to scroll to the bottom when a new item is added to the list. Below is my code: RecyclerView.LayoutManager layoutManager = new LinearLayoutManager(getActivity()); recyclerView.setLayoutManager(layoutManager); adapter = new RecyclerViewAdapter(data, recyclerView); recyclerView.setAdapter(adapter); And when I click a button which is below the RecyclerView , data is added to the list: public void addNewCard() { data.add("New"); adapter.notifyItemInserted(data.size() - 1);

问题 I want my RecyclerView to scroll to the bottom when a new item is added to the list. Below is my code: RecyclerView.LayoutManager layoutManager = new LinearLayoutManager(getActivity()); recyclerView.setLayoutManager(layoutManager); adapter = new RecyclerViewAdapter(data, recyclerView); recyclerView.setAdapter(adapter); And when I click a button which is below the RecyclerView , data is added to the list: public void addNewCard() { data.add("New"); adapter.notifyItemInserted(data.size() - 1);

问题 I am trying to load a recycler view that lists cards, each card has four elements. two text views(posttext, score are the id) and two buttons(minusOne and plusOne). The code below loads the textview's content and buttons properly on all cards. I try to implement the following behavior. onbuttonclick of plusOne button, the score will be changed and the minusOne button is hidden. The strange part is, the scores get updated properly on respective cards. But the hiding part appears to happen in

问题 I have followed so many answers from here.. but not a single one solving my issue .. that's why i am asking. I want to save scroll position in a fragment. In So many articles they have suggested to follow @Override protected void onSaveInstanceState(Bundle outState) { super.onSaveInstanceState(outState); } and @Override protected void onRestoreInstanceState(Bundle savedInstanceState) { super.onRestoreInstanceState(savedInstanceState); } But this two method is not available in fragment. My

问题 See this Image I achieved the current margin from xml layout but its not same through all four sides. How to get equal margin My current xml layout <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="300dp"> <ImageView android:id="@+id/iv_photo" android:layout_width="match_parent" android:layout_height="300dp" android:layout_marginEnd="6dp" android:layout_marginTop="6dp" android:adjustViewBounds="true" android

问题 So, Vogella seems to suggest that ListView is completely being deprecated in comparison with RecyclerView. And not actually deprecated, but rather that there is no situation in which ListView would be a better choice. Is this true? The commonsware book suggests that it might be faster at updating. Is there any other reason to completely avoid ListView from now on? Just reading through some examples, it seems that RecyclerView adds many layers of difficulty/convolution to the code, hence my

问题 I have a recyclerview in my android project which displays media contents within each view. What I'm trying to achieve is that I'm able to play/pause media as I scroll up and down. I need to get the adapter position of the completely visible view. I'm doing something like this. In my activity fragment I have this: layoutmanager = new LinearLayoutManager(Activity); adapter = new FeedAdapter(vid, userName, this.Context); feeditem.SetLayoutManager(layoutmanager); feeditem.SetAdapter(adapter);

问题 I have a recyclerview in my android project which displays media contents within each view. What I'm trying to achieve is that I'm able to play/pause media as I scroll up and down. I need to get the adapter position of the completely visible view. I'm doing something like this. In my activity fragment I have this: layoutmanager = new LinearLayoutManager(Activity); adapter = new FeedAdapter(vid, userName, this.Context); feeditem.SetLayoutManager(layoutmanager); feeditem.SetAdapter(adapter);