android-viewholder

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

问题 It's maybe a discussion not a question. Normal way to implement multiple types As you know, if we want to implement multiple types in RecyclerView , we should provide multiple CustomViewHolder extending RecyclerView.ViewHolder . For exmpale, class TextViewHolder extends RecyclerView.ViewHolder{ TextView textView; } class ImageViewHolder extends RecyclerView.ViewHolder{ ImageView imageView; } Then we have to override getItemViewType .And in onCreateViewHolder to construct TextViewHolder or

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 3 years ago . I'm using RecyclerView to display a list of marks, and each mark of the value is shown as a CardView. But some contents of the cards are lost after the scrolling the RecyclerView down and scrolling back, as shown in the two screenshots below. The contents in the red rectangle is lost after scrolling. BEFORE THE

问题 I have a fragment, which contains a recyclerview. This recyclerview is managed with an adapter that includes the viewholder pattern. In the fragment I have a "Save" button, this button must check that no TextInputEditText is empty in the list. The problem is that I can not access the TextInputEditText of the adapter. ViewHolder is only accessible from the "onBindViewHolder" method. I tried to access from fragment in a way: for (int i = 0; i < employeeList.size(); i++) { View employeeView =

问题 I have a problem. I'm attempting to change an icon in my listview after it has been clicked. It works correctly although are not modified only the clicked icons but also those who are not displayed. For example if I click the icon in the first item of the listview, also the fifth icon changes. This behaviour is repeated for all the following items (every five items of the listview). This is my getView method: public class AlphabeticalAdapter extends ArrayAdapter<String> { int layoutResourceId

问题 I'm having a hard time to figure out on what am I going to do with my code please help. I already got the answer on how will the user set a name for the image in gridview the problem is, it constantly changes every time I click it and input new data. After adding a name and description of the image, the next click of the user the image must do other activity like viewing its content. How will I set it as the official name of the image and use the name as a reference in the database? The name

问题 In RecyclerView.ViewHolder , a view is passed to the constructor. This view is an inflated layout. The RecyclerView.ViewHolder only bind the views with findViewById . The RecyclerView.Adapter has the role to : inflate the layout in onCreateViewHolder bind the ViewHolder with the data set with onBindViewHolder I have several RecyclerViews displaying the same list of data. I want each RecyclerView to display differently with their respective ViewHolder. My goal is to use the same generic

问题 I want to make only one item of the viewholder non recyclable and not the whole viewholder. How can I do so? I dont want the btnSave to be recyclable since its state may be different for each row. Here is the code of what I have done so far : public static class AlertViewHolder extends RecyclerView.ViewHolder { TextView tvTitle, tvDescription; Button btnLink, btnSave; AlertViewHolder(View itemView) { super(itemView); tvTitle = (TextView) itemView.findViewById(R.id.tvTitle); tvDescription =

问题 I have a ListView with rows that contain ImageButtons (shown as 'O' below): [<-------TextView-------> O O O] [<-------TextView-------> O O O] I am finding that the first row has intermittent behaviour. At first it appeared that the image button onclicklisteners were not being called for just the top row. What I have found is that the onclicklisteners for the buttons do get called, but the clicks seem to be queued/buffered until I click on the row itself. I will happily post some code if

问题 After applying almost all answers from stack overflow on same topic but i can not find solution for my problem. my problem is i have a list view which contain a question and a edit text in each row. but when i scroll list view data in edit text change or it may happen it comes in other edit text. i.e if i write some thing in 1st editext after scroll it may happen it is in 2nd or 3rd row edittext. Some of the thing i have even tried from cursoradapter class but still. Please help me guys.