android-viewholder

问题 I'm trying to implement TwoWayView in my project by following the sample project provided in that link. I have implemented everything and my code works without any errors but the actual List is not getting inflated. Upon debugging I found out that the adapter is set correctly and the getItemCount method is also returning positive count but the other two overridden methods onCreateViewHolder and onBindViewHolder are not getting called. I have no clue why it is not working. Please see the

问题 The RecyclerView.ViewHolder class has a field that is public final View itemView . It says that the onBindViewHolder method should update the contents of the itemView to reflect the item at the given position . Doesn’t the final modifier indicate that the value of this field cannot change ? The code below is from the textbook : public class ViewHolder extends RecyclerView.ViewHolder { ... @Override public int getItemCount() { ... } @Override public ViewHolder onCreateViewHolder(ViewGroup

问题 This question already has answers here : What difference between static and non static viewholder in RecyclerView Adapter? (3 answers) Closed 4 years ago . Why is recommended to use static for a class extended from RecyclerView.ViewHolder if I create a new instance of this class on the onCreateViewHolder method and I guess that instance is used for each item: @Override public RecyclerViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { View view = LayoutInflater.from(parent

问题 I have a listview with edittext widgets inside each row. I use a viewholder inside my custom adapter to keep track of all the views. But my problem is that when i input a value inside my edittext , pause until my screen times out, when you unlock the phone while still in the same activity ,the default edittext value is refilled, overwriting my edits. I followed this suggestion here (when listview scroll that time edittext set default value) considering that maybe i am not using the viewholder

问题 i'm new to android, I've been working on a project, and in my news feeds page, I'm trying to include a modular feed RecyclerView, which shows a question with different answer forms, varrying according to the Question type. The way I was doing it so far was by using the include and turning the forms visible when needed. recently since i added more modules, the app started to slowdown segnificantly, so i'm trying to implement ViewStubs. This is my RecyclerView adapter: public class

问题 In tutorials on internet where they setOnClickListener in Adapter of RecyclerView they define it in two ways : either inside ViewHolder or inside BindViewHolder. My Question is which one is a better approach, Please recommend any another approach if available 1) inside ViewHolder: public static class ViewHolder extends RecyclerView.ViewHolder { public ViewHolder(View itemView) { super(itemView); tvSrc = (TextView) itemView.findViewById(R.id.tvSrc); itemView.setOnClickListener(new View

问题 I create one Listview , in my Listview I have two Buttons and one Edittext . In my Edittext I want to increase the value of Edittext as per Button 's click. I followed so many tutorials, but still it's not working in my Listview can anyone help me with that? I follow this tutorial: http://www.androidhub4you.com/2013/02/muftitouch-listview-multi-click.html It shows: Cannot refer to the non-final local variable holder defined in an enclosing scope Code: public class UserCustomAdapter extends

问题 I create one Listview , in my Listview I have two Buttons and one Edittext . In my Edittext I want to increase the value of Edittext as per Button 's click. I followed so many tutorials, but still it's not working in my Listview can anyone help me with that? I follow this tutorial: http://www.androidhub4you.com/2013/02/muftitouch-listview-multi-click.html It shows: Cannot refer to the non-final local variable holder defined in an enclosing scope Code: public class UserCustomAdapter extends

问题 I have a listview and for a specific item I'm refreshing the remaining time every second. It works fine, but I'm having a small bug. Whenever I call duration.setText(newRemainingValue); to update the value, another textView from the same row is impacted. This other textVewi displays a scolling text title.setSelected(true); title.setEllipsize(TruncateAt.MARQUEE); and whenever I change the 1st textView value, the second one resets the scrolling and starts scrolling from the beginning. It looks

问题 I am trying to make an app that will be loading news from the network and will be updating dynamically. I am using a RecyclerView and CardView to display the content. I use Jsoup to parse sites. I don't think that my code is needed because my question is more theoretical than practical. I want to understand the process of dynamic updating using notifyDataSetChanged() . In my main activity I get all the headers and add them to list. But I need to wait untill all the items are loaded to start