android-recyclerview

问题 I have a list of url of images at remote server. I need to load them into Grid View asynchronously without using any third party libraries . I have built the following task: class BitmapWorkerTask extends AsyncTask<String, Void, Bitmap> { private final WeakReference<ImageView> imageViewReference; public BitmapWorkerTask(ImageView imageView) { // Use a WeakReference to ensure the ImageView can be garbage collected imageViewReference = new WeakReference<ImageView>(imageView); } // Decode image

问题 I have a parent recyclerview with filled with cards and an inner recyclerview inside each card. The scrolling for the inner recyclerview inside the cards has been disabled but this has also affected the inner recyclerview's ability to receive click events. To disable the scrolling, I had followed a very similar approached to Lucas Crawford's answer here which suggested that you create a custom recyclerview class and override dispatchTouchEvent: Disable Scrolling in child Recyclerview android

问题 I am working on a pinch-to-zoom RecyclerView and have the pinch-to-zoom functionality working, but once zoomed in, the onItemClickListeners are in the wrong locations. Below is the code for the modified RecyclerView. I also made a simple demo that is hosted on GitHub. When trying the demo, when you click on an item, you should get a Toast that says the number of the icon you click on. Try it without zooming, then zoom in and try again to see the issue. I believe that I need to notify the

问题 I have a RecyclerView where each row also has an EditText that allows the user to enter a value. However when the user rotates the screen the values reset to their default blank values. So I wanted to save the values in a List or Map so I can refill the list on restore. However I don't know how to "iterate over the current list" and grab the EditTexts and extract the values. 回答1: If you take for example the following RecyclerView.Adapter implementation, you'll notice a few things. The List

问题 I have a requirement for implementing pagination while scrolling up a RecyclerView. I am facing some issues as while adding content to the 0th position and notifying the adapter, recyclerview automatically scrolls to the top. Is there a way to disable that behaviour? @Override public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) { setFields(viewHolder, data); if (position == 0 && getParentFragment().hasPrevious()) { getParentFragment().callPreviousPage(); } } Where

问题 I have a requirement for implementing pagination while scrolling up a RecyclerView. I am facing some issues as while adding content to the 0th position and notifying the adapter, recyclerview automatically scrolls to the top. Is there a way to disable that behaviour? @Override public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) { setFields(viewHolder, data); if (position == 0 && getParentFragment().hasPrevious()) { getParentFragment().callPreviousPage(); } } Where

问题 I encountered a strange error while setting elevations to items in recycler-view. I have two item types in adapter, first is a kind of dashboard with complex layout with three cardview s. Second one is classic item for data list where each item has cardview as root. each cardview in both layouts is defined as follows First Item Type : <LinearLayout android:id="@+id/root" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="wrap_content"> <android.support

问题 this might be a possible duplicate , but proper answer is still not available. I referred to this and this and this As stated in the links I wish to implement a recyclerview which is circular ie [view 1]-[view 2]....-[view N-1]-[view N]-[view 1].....and so on Since there are no override methods to get View and get Item in recyclerview , I am unable to succeed. please help.Thanks in Advance! my recycler adapter code public class HorizontalRecyclerAdapter extends RecyclerView.Adapter

问题 I'm trying to implement the below image. My first thought was to have everything above the grid layout be the first row of the grid and use SpanSizeLookup to set the span size to the number of columns in the RecyclerView, but this feels like something that will give me a lot of problems. I've been reading about putting a RecyclerView inside a NestedScrollView, people say it works, but I can't seem to get it to work properly. The scrolling doesn't seem to work right, I can't get the grid to

问题 tried to import android.support.v7.widget.RecyclerView, but it didn't work, added also compile 'com.android.support:recyclerview-v7:23.1.1' to build.gradle, but it didn't help either 回答1: you can also add lib/dependencies from android studio menu. click on " Build " -> " Edit Libraries and Dependencies ". then click on " + " button on right side. search any lib. example search "recycler" then select " com.android.support:recyclerview-v7:x.x.x " from list and your done. 回答2: Open build.gradle