android-recyclerview

问题 I have implemented Firebase recycler in my app. Everything works fine while using text watcher, but recycler view is not updating in onTextChanged with the keyboard up, and gets updated as soon as i press the keyboard to go down. This is my code: private TextWatcher textWatcher = new TextWatcher() { public void afterTextChanged(Editable s) { } public void beforeTextChanged(CharSequence s, int start, int count, int after) { } public void onTextChanged(CharSequence s, int start, int before, int

问题 I want to implement night mode for my android app so I have used Theme.AppCompat.DayNight theme for implementing Night Mode. But I have to customize the color of the Toolbar and recycler view during the Night Mode. For that, I have declared the attribute in the attrs.xml file and use that attribute as a background in the recyclerview. Here is the attrs.xml file <?xml version="1.0" encoding="utf-8"?> <resources> <declare-styleable name="ds"> <attr name="rv_color" format="color"/> </declare

问题 I would like to make a RecyclerView having differents elements per line depending on a boolean in the adapter. In my app, you have some banknote and coins. I have to put all in a RecyclerView . First of all I want to show the banknote (2 per 2) and after the coins (4 per 4) like this : This is how I want the result look like : This is my Adapter class MoneyAdapter(private val money_list: ArrayList<Money>) : RecyclerView.Adapter<MoneyAdapter.ViewHolder>() { override fun onCreateViewHolder

问题 I want to run Espresso Testing on my Android project Step 1- Find my RecyclerView Step 2- check an Item on the RecyclerView The first Step ran Successfully, but the second which should check the recycler view Item Failed.. This is my test: onView(withRecyclerView(R.id.recyclerView_recipes).atPosition(0)) .check(matches(isDisplayed())); onView(withRecyclerView(R.id.recyclerView_recipes).atPositionOnView(0, R.id.tv_recipe_name)) .check(matches(isDisplayed())) .check(matches(withText("Nutella

问题 I have the following JSON which I'm parsing in GSON and Retrofit. I want to display the values of the same id in one TextView. What's happening right now is that all the values are added to the array and they are being displayed in separate TextViews. I want to show all values which have the same id to be displayed in one TextView. For eg. id: 240 ab values should be in one TextView. Currently, all ab values are in separate TextView. This is how the data is currently displaying: This is how I

问题 I have the following JSON which I'm parsing in GSON and Retrofit. I want to display the values of the same id in one TextView. What's happening right now is that all the values are added to the array and they are being displayed in separate TextViews. I want to show all values which have the same id to be displayed in one TextView. For eg. id: 240 ab values should be in one TextView. Currently, all ab values are in separate TextView. This is how the data is currently displaying: This is how I

问题 I have the following JSON which I'm parsing in GSON and Retrofit. I want to display the values of the same id in one TextView. What's happening right now is that all the values are added to the array and they are being displayed in separate TextViews. I want to show all values which have the same id to be displayed in one TextView. For eg. id: 240 ab values should be in one TextView. Currently, all ab values are in separate TextView. This is how the data is currently displaying: This is how I

问题 Can someone explain the logic on how to handle this matter: I have a fragment that after a WebSocket call inflates 2 Recyclerviews. Child Recyclerview is nested to Parent Recyclerview and the parent adapter calls the child adapter. I want to put an Interface for a click listener which handles the click in the Child Items in the Fragment. Where should I put the interface and which class should implement it? 回答1: What you're trying to do has been done multiple times. There are various

问题 Can someone explain the logic on how to handle this matter: I have a fragment that after a WebSocket call inflates 2 Recyclerviews. Child Recyclerview is nested to Parent Recyclerview and the parent adapter calls the child adapter. I want to put an Interface for a click listener which handles the click in the Child Items in the Fragment. Where should I put the interface and which class should implement it? 回答1: What you're trying to do has been done multiple times. There are various

问题 I have been trying to achieve this for so long. What I want is to overlap the selected RecyclerView item from left and right as shown in the picture below. I'm able to achieve left or right by ItemDecoration like below: class OverlapDecoration(private val overlapWidth:Int) : RecyclerView.ItemDecoration() { private val overLapValue = -40 val TAG = OverlapDecoration::class.java.simpleName override fun getItemOffsets(outRect: Rect, view: View, parent: RecyclerView, state: RecyclerView.State?) {