android-recyclerview

问题 I made a small app that shows me a list of all the apps installed to my phone I want to add a check box to every cardview so that I can mark my favorite apps and other classification. The problem is when scrolling through the list the state of the checkbox change ex. I checked chrome and when I scrolled down then scrolled up chrome is not marked and a random app is checked. I searched for other question related to this problem but none of those solutions worked for me. updated version of

问题 I have a recyclerview which shows several(8) cardviews. Inside each cardview, there are several elements like text, imagebutton,etc. Inside the Adapter class (RvAdapter extends RecyclerView.Adapter) I have a code as below. What I want to do is change the color of Vector (.xml) assigned to the imagebutton using the OnClickListener of the same button. public RvAdapter(Context context,List<Person> persons) { this.mContext=context; this.persons=persons; } @Override public ViewHolder

问题 I project targetSdkVerison version upgrade to 27, my classpath classpath 'com.android.tools.build:gradle:2.2.2' But when I add a dependency compile 'com.android.support:recyclerview-v7:27.1.1' I got this error Could not find recyclerview-v7.jar (com.android.support:recyclerview-v7:27.1.1). Searched in the following locations: https://jcenter.bintray.com/com/android/support/recyclerview-v7/27.1.1/recyclerview-v7-27.1.1.jar Please install the Android Support Repository from the Android SDK

问题 In my application I receive some data from a web server. This data is sent to a RecyclerView . Firstly, all data is displayed fine. However, when I try to refresh it, the data no-longer shows. The data arrives from the web service (as verified using Logcat). Setting the data ArrayList<FoodItem> allFood = response.body(); if(foodAdapter != null) { foodAdapter.swap(allFood); } else { foodAdapter = new FoodAdapter(FoodViewForCustomerActivity.this, allFood); } photoCollectionView.setAdapter

问题 I have a recycler view and I am implementing OnClicklistener inside it. Basically , I have an adapter class called actressadapter and a viewholder class MyViewHolder.I am implementing OnClickListener inside viewholder class to initiate another activity via intent method. My basic data is inside a class called actress which has three variables name,country(both String) and an Id(UUID). I am providing this data that is of actresses to my adapter.Next activity is just displaying the name of

问题 I have a RecyclerView and I've set android:animateLayoutChanges="true" in the item's CardView , because I'm changing its layout from a "visualization mode" to a "edit mode" when I click it. However, if I click the item then scroll immediately, items will overlap. Basically the item being animated doesn't respond to the scrolling. If I set android:animateLayoutChanges="false" however, they won't overlap but I will lose the animation. I've trying things like disabling scrolling while item

问题 I have Rcylerview with Adapter each Item need 60 seconds After 60 seconds Item Remove From List : This is My Adapter Code : public class LafzAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> { private Activity activity; public List<Lafz> Events; public Typeface tempfont,tempfont2; private MyClickListener myClickListener; private final List<RecyclerView.ViewHolder> lstHolders=new ArrayList<>(); private Handler mHandler = new Handler(); private Runnable updateRemainingTimeRunnable =

问题 I need to know, when the user clicking on one item(or for example, whatsApp contacts) WhatsApp showing to the user one design with this picture example: here is the recycle view items: and i'm using : http://code.tutsplus.com/tutorials/getting-started-with-recyclerview-and-cardview-on-android--cms-23465 Main-activity: public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout

问题 Actually, I have a menu from which I can add in my MainActivity buttons in a recyclerView an in that menu I'm showing all added buttons so one can delete chosen button. But I have 4 first items of that recyclerView that should be default so no one should touch them, to manage it I've made that if on swipe position equals from 0 to 3 I will do nothing but I would hide them from that recyclerView and just show the added items. Like as you can see on that drawing 1 is my MainActivity with 4

问题 I'm working on a real-time chatting android application where I need to connect socket.io for real-time response. I followed this tutorial:https://socket.io/blog/native-socket-io-and-android/ and I've successfully implemented socket.io in my android app and getting the response in a toast. Here is the Socket connection class: import android.app.Application; import java.net.URISyntaxException; import io.socket.client.IO; import io.socket.client.Socket; public class ChatApplication extends