kandi X-RAY | baseAdapter Summary
kandi X-RAY | baseAdapter Summary
Android's universal Adapter for ListView, RecyclerView, GridView, etc. supports multiple Item types.
Top functions reviewed by kandi - BETA
- Initializes the RecyclerView
- Get view by id
- Init the header and the footer
- This is called when the viewHolder is created
- Returns a delegate for a specific item at a particular position
- Set the OnItemClickListener on the view
- Attaches the given position to the inner view
- Attaches the given inner view to the RecyclerView
- Set the alpha value for a view
- Get a ViewHolder for the layout
- Helper method to set the layout on an item
- Gets a view at a specific position
- On createViewHolder
- Initializes the list view
- On create view holder
- Called when the view holder is created
- Sets the progress of the given view
- Set the rating for a view
- Set the typeface for all views
- Removes a delegate
- Attaches the span size to a RecyclerView
- Create the content view
- Attaches the span to a RecyclerView
baseAdapter Key Features
baseAdapter Examples and Code Snippets
Trending Discussions on baseAdapter
I want to add EditText to the listview, but I can't do it smoothly. Please guide. If it is List, it is normal, but DakaHinbanClass is used, How to write code that uses Class
The data is obtained from MySQL, and the content can be displayed normally at present. I want to change the production quantity directly in the listview, but when running, the position of line 195 always reports an error.
2022-03-31 15:58:14.780 13403-13403/com.ree.kms E/AndroidRuntime: FATAL EXCEPTION: main Process: com.ree.kms, PID: 13403 java.lang.ClassCastException: android.text.SpannableStringBuilder cannot be cast to com.ree.kms.DakaHinbanClass at
at android.widget.TextView.sendAfterTextChanged(TextView.java:8336) at android.widget.TextView.setText(TextView.java:4399) at android.widget.TextView.setText(TextView.java:4247) at android.widget.EditText.setText(EditText.java:90) at android.widget.TextView.setText(TextView.java:4222) at com.ree.kms.DakaListAdapterClass.getView(DakaListAdapterClass.java:101) at android.widget.AbsListView.obtainView(AbsListView.java:2474) at android.widget.ListView.makeAndAddView(ListView.java:1920) at android.widget.ListView.fillDown(ListView.java:717) at android.widget.ListView.fillFromTop(ListView.java:778) at android.widget.ListView.layoutChildren(ListView.java:1701) at android.widget.AbsListView.onLayout(AbsListView.java:2235) at android.view.View.layout(View.java:16953) at android.view.ViewGroup.layout(ViewGroup.java:5579) at android.widget.RelativeLayout.onLayout(RelativeLayout.java:1189) at android.view.View.layout(View.java:16953) at android.view.ViewGroup.layout(ViewGroup.java:5579) at android.widget.FrameLayout.layoutChildren(FrameLayout.java:396) at android.widget.FrameLayout.onLayout(FrameLayout.java:333) at android.view.View.layout(View.java:16953) at android.view.ViewGroup.layout(ViewGroup.java:5579) at android.widget.LinearLayout.setChildFrame(LinearLayout.java:2001) at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1844) at android.widget.LinearLayout.onLayout(LinearLayout.java:1753) at android.view.View.layout(View.java:16953) at android.view.ViewGroup.layout(ViewGroup.java:5579) at android.widget.FrameLayout.layoutChildren(FrameLayout.java:396) at android.widget.FrameLayout.onLayout(FrameLayout.java:333) at android.view.View.layout(View.java:16953) at android.view.ViewGroup.layout(ViewGroup.java:5579) at android.widget.LinearLayout.setChildFrame(LinearLayout.java:2001) at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1844) at android.widget.LinearLayout.onLayout(LinearLayout.java:1753) at android.view.View.layout(View.java:16953) at android.view.ViewGroup.layout(ViewGroup.java:5579) at android.widget.FrameLayout.layoutChildren(FrameLayout.java:396) at android.widget.FrameLayout.onLayout(FrameLayout.java:333) at com.android.internal.policy.PhoneWindow$DecorView.onLayout(PhoneWindow.java:2740) at android.view.View.layout(View.java:16953) at android.view.ViewGroup.layout(ViewGroup.java:5579) at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2562) at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2265) at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1323) at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6718) at android.view.Choreographer$CallbackRecord.run(Choreographer.java:894) at android.view.Choreographer.doCallbacks(Choreographer.java:696) at android.view.Choreographer.doFrame(Choreographer.java:631) at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:880) at android.os.Handler.handleCallback(Handler.java:815) at android.os.Handler.dispatchMessage(Handler.java:104) at android.os.Looper.loop(Looper.java:207) at android.app.ActivityThread.main(ActivityThread.java:5765) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:789) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:679)
ANSWERAnswered 2022-Apr-01 at 05:56
After the user changes the string inside the
EditText, the method
afterTextChanged(Editable s) is called, and
s represents the new edited String. You want to update the DakaHinbanClass object inside the list, so you can't just conver a String an object (this String is only one class member of this object class, right?)
If you want to update the Query value inside this object, first get the object and then set the class member value to the new String, like this:
I'm new to Android Studio and I'm trying to implement a listview in a fragment with an adapter. After launching my application I have this error message
java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.ListView.setAdapter(android.widget.ListAdapter)' on a null object reference
It seems to be something with my adapter. Here's my code:
ANSWERAnswered 2022-Mar-14 at 05:25
No, there is nothing wrong with your adapter, but it is wrong with your listview.
Click on TextView open DialogFragment. Custom Listview set in DialogFragment. Listview item set in textview. Data set in Listview but when click listview item is not any response but when we click on listview item text then give error "java.lang.ClassCastException: java.lang.Integer cannot be cast model.Serve"
ANSWERAnswered 2022-Mar-07 at 08:17
Try to change the
getItem function in the
(1) Activity's FrameLayout -> (2) Fragment's ListView -> (3) Base Adapter
There are buttons such as like and reply in every row in the layout.
Whenever user hits the like button, I will have to change a TextView's text in the (1) Activity.
I couldn't find a solid answer thru searching.
I want communication between Adapter and Fragment.
Button click in BaseAdapter -> update UI in Activity(which contains fragment)...
ANSWERAnswered 2022-Mar-01 at 15:45
Create an interface like:
I have a simple AdapterViewFlipper with an onClickListener attached to its items.
When i click it should flip through all of the numbers in
data array, "one" through to "seven".
It is only flipping on first two clicks up to "three". After that my
adapterViewFlipper stops clicking and no flips occur. What am i doing wrong?
ANSWERAnswered 2022-Feb-27 at 01:56
When you first create the activity, you're searching for
R.id.textView inside your
AdapterViewFlipper, and setting the click listener on that. But that
TextView is created when
getView in your adapter inflates the
When you flip to another view,
getView inflates another copy of the layout, and that instance of
textView doesn't have the click listener set on it, because it's a new view. I don't know why clicking would work more than once, but that's what I'd look into.
Try setting the click listener in
getView instead - you'll need to make
adapterViewFlipper visible to it (or call a
showNext function in the activity that flips it, something like that)
I am having a gridview which is populated from a list of string. List of string is a simple array of alphabets. Here is my Activity Xml...
ANSWERAnswered 2022-Feb-02 at 11:33
It was not possible using GridView. I had to use the RecyclerView with GridLayoutManager.
I'm trying to check multiple items in
RecyclerView and delete them but unable to delete after checking
CheckBox in custom
ANSWERAnswered 2021-Nov-11 at 19:33
selectedList is null. You should use
val selectedList = mutableListOf().
Also, you probably want to be removing items from the list when they are unchecked.
In my opinion, however, you should change your strategy. This
selectedList is going to be tricky to keep synced with your UI state, especially after a screen rotation. Instead, you can simply iterate your Adapter's source list and remove the items that are
isSelected. Then notify the Adapter of the change.
I guess that list is in your base adapter class that you haven't shown. This will be kind of complicated using repeated
notifyRangeRemoved calls, or you can use
notifyDataSetChanged() and suffer the ugly refresh of your list. It would be easier if you were using ListAdapter as your base class.
Edit, based on updated question:
Quick and dirty solution: remove
selectedItems from your adapter and all the code interacting with it. Add a function like this to TestAdapter and use it in your Fragment:
I can't create Huawei Push token.
TokenTask failed, ErrorCode: 907122012- when
String: com.huawei.hms.common.ApiException: 907122037: get token error- when i trying to get token manually in
ANSWERAnswered 2021-Sep-08 at 10:02
My problem is solved! I change my
build.gradle (app:) for signing debug version with release keystore, clear app data and cache in HMS Core app. Manual: https://developer.huawei.com/consumer/en/doc/development/HMSCore-Guides/android-integrating-sdk-0000001050040084
When I try to fill a ListView using a custom adapter, I get an empty list, I can't figure out what the error is? Why is everything loaded and displayed when using the default adapter?
ANSWERAnswered 2021-Aug-04 at 17:31
Looks like you add data to the backing list of the adapter (
listHero.add(data)), but you never inform the adapter that its backing data has changed (
As an aside, there are some issues with your coroutine. You should not use GlobalScope. Use
lifecycleScope instead to avoid leaking network calls and copies of your Activity. Really, you should fetch data in a ViewModel using the ViewModel's scope and expose it via LiveData or SharedFlow so the network call doesn't have to restart if the phone rotates.
ANSWERAnswered 2021-Jun-26 at 01:32
ListView reuse views returned by
Listview1Adapter.getView() method. You get a situation when view for some item change itself - the state of View instance(object) was changed (expanded). Then ListView pass as an argument of
Listview1Adapter.getView() method a same View's instance for other item - this view already expanded.
You should save state of view for each item of ListView (in your case for
data ArrayList) and restore it for each item in
getView() method. It might look like:
No vulnerabilities reported
You can use baseAdapter like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the baseAdapter component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .
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