SimpleAdapter | SimpleAdapter with Databinding fore RecyclerView | Android library
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SimpleAdapter with Databinding fore RecyclerView
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QUESTION
I am trying to use data binding with RecyclerView. I set up a simple application that shows the numbers 1 to 50, one on each row, in a RecyclerView. And I want to use data binding to each row.
Here is the code of my adapter (Note that I called dataBinding.executePendingBindings()
):
ANSWER
Answered 2021-May-15 at 11:40As I see in your xml, you're setting android: text="@{text}"
In other words, textView value is being set from binding.text
You set dataBinding.txtView.text = str
and it will update the text. After that using executePendingDataBinding
it's value will be reset to that dataBinding.text
(aka android: text="@{text}"
) which is null or empty. So you shoud set
QUESTION
I'm creating an app to get posts from a web server, and i'm getting a jsonarray to object error I'm new to android development and tutorials i see the JsonArray is named before, so it'd be array of dogs, and then inside that would have breed and name and so on, mines not named.
the code i have is
...ANSWER
Answered 2021-Apr-29 at 05:08You should use like below
QUESTION
I am pretty new to Android.I am trying to parse a JSON url. But I am getting following error "Json parsing error: No value for unofficial-summary". Here is the response that I am getting.
Response from url: {"success":true,"data":{"summary":{"total":15616130,"confirmedCasesIndian":15616082,"confirmedCasesForeign":48,"discharged":13276039,"deaths":182553,"confirmedButLocationUnidentified":0},"unofficial-summary":[{"source":"covid19india.org","total":7945975,"recovered":7198877,"deaths":119538,"active":626192}],"regional":[{"loc":"Andaman and Nicobar Islands","confirmedCasesIndian":5466,"confirmedCasesForeign":0,"discharged":5243,"deaths":64,"totalConfirmed":5466},{"loc":"Andhra Pradesh","confirmedCasesIndian":976987,"confirmedCasesForeign":0,"discharged":915626,"deaths":7472,"totalConfirmed":976987},{"loc":"Arunachal Pradesh","confirmedCasesIndian":17113,"confirmedCasesForeign":0,"discharged":16835,"deaths":56,"totalConfirmed":17113},{"loc":"Assam","confirmedCasesIndian":227473,"confirmedCasesForeign":0,"discharged":217296,"deaths":1145,"totalConfirmed":227473},{"loc":"Bihar","confirmedCasesIndian":342059,"confirmedCasesForeign":0,"discharged":283863,"deaths":1841,"totalConfirmed":342059},{"loc":"Chandigarh","confirmedCasesIndian":35148,"confirmedCasesForeign":0,"discharged":30768,"deaths":421,"totalConfirmed":35148},{"loc":"Chhattisgarh","confirmedCasesIndian":574299,"confirmedCasesForeign":0,"discharged":442337,"deaths":6274,"totalConfirmed":574299},{"loc":"Dadra and Nagar Haveli and Daman and Diu","confirmedCasesIndian":5422,"confirmedCasesForeign":0,"discharged":4047,"deaths":4,"totalConfirmed":5422},{"loc":"Delhi","confirmedCasesIndian":905540,"confirmedCasesForeign":1,"discharged":807328,"deaths":12638,"totalConfirmed":905541},{"loc":"Goa","confirmedCasesIndian":69311,"confirmedCasesForeign":1,"discharged":60145,"deaths":926,"totalConfirmed":69312},{"loc":"Gujarat","confirmedCasesIndian":428177,"confirmedCasesForeign":1,"discharged":346063,"deaths":5615,"totalConfirmed":428178},{"loc":"Haryana","confirmedCasesIndian":371610,"confirmedCasesForeign":14,"discharged":318369,"deaths":3483,"totalConfirmed":371624},{"loc":"Himachal Pradesh","confirmedCasesIndian":79410,"confirmedCasesForeign":0,"discharged":68164,"deaths":1219,"totalConfirmed":79410},{"loc":"Jammu and Kashmir","confirmedCasesIndian":150238,"confirmedCasesForeign":0,"discharged":134697,"deaths":2071,"totalConfirmed":150238},{"loc":"Jharkhand","confirmedCasesIndian":172315,"confirmedCasesForeign":0,"discharged":137590,"deaths":1547,"totalConfirmed":172315},{"loc":"Karnataka","confirmedCasesIndian":1198644,"confirmedCasesForeign":0,"discharged":1025821,"deaths":13646,"totalConfirmed":1198644},{"loc":"Kerala","confirmedCasesIndian":1272637,"confirmedCasesForeign":8,"discharged":1148671,"deaths":4978,"totalConfirmed":1272645},{"loc":"Ladakh","confirmedCasesIndian":12556,"confirmedCasesForeign":0,"discharged":10610,"deaths":134,"totalConfirmed":12556},{"loc":"Lakshadweep","confirmedCasesIndian":1335,"confirmedCasesForeign":0,"discharged":817,"deaths":1,"totalConfirmed":1335},{"loc":"Madhya Pradesh","confirmedCasesIndian":433704,"confirmedCasesForeign":0,"discharged":350720,"deaths":4713,"totalConfirmed":433704},{"loc":"Maharashtra","confirmedCasesIndian":3960356,"confirmedCasesForeign":3,"discharged":3213464,"deaths":61343,"totalConfirmed":3960359},{"loc":"Manipur","confirmedCasesIndian":29869,"confirmedCasesForeign":0,"discharged":29106,"deaths":378,"totalConfirmed":29869},{"loc":"Meghalaya","confirmedCasesIndian":15116,"confirmedCasesForeign":0,"discharged":14105,"deaths":154,"totalConfirmed":15116},{"loc":"Mizoram","confirmedCasesIndian":5085,"confirmedCasesForeign":0,"discharged":4569,"deaths":12,"totalConfirmed":5085},{"loc":"Nagaland","confirmedCasesIndian":12650,"confirmedCasesForeign":0,"discharged":12299,"deaths":94,"totalConfirmed":12650},{"loc":"Odisha","confirmedCasesIndian":377464,"confirmedCasesForeign":0,"discharged":349377,"deaths":1953,"totalConfirmed":377464},{"loc":"Puducherry","confirmedCasesIndian":48974,"confirmedCasesForeign":0,"discharged":43184,"deaths":717,"totalConfirmed":48974},{"loc":"Punjab","confirmedCasesIndian":309316,"confirmedCasesForeign":0,"discharged":264562,"deaths":8045,"t
What am I doing wrong?
...ANSWER
Answered 2021-Apr-26 at 06:32Json is like
QUESTION
I got a problem when i want showing data with json from android with java it showing nothing in here
But from json generator its fine here is the example of json http://www.json-generator.com/api/json/get/cfYdxbAzma?indent=2
and here is my MainActivity.java
...ANSWER
Answered 2021-Feb-03 at 07:30Yes, Async Task is deprecated now. There are already better and best alternate available those already handled these hacks of handling automatically and provide more readable and maintainable code. You must try one of those as I am mentioned below:
- Retrofit
- Volley
- LoopJ
And many examples can be found over stack-overflow very easily.
QUESTION
How can I use Glide image loading with GridView? I have Card class with image URL, name and description. I want to display it in GridView. In documentation is writte:
...ANSWER
Answered 2021-Feb-02 at 20:58If someone would look for example of the Adapter which passes image and some textes into GridView with usage of Glide here is what I have came up basing on the tutorial from this link https://www.homeandlearn.co.uk/android/grid_view_custom_adapter.html .
QUESTION
I want to display a list of member from a JSON file. Member information like Name, Location, Contact number, image etc. All information is showing fine but Member Image is not showing. Here is given the necessary file and coding for your checking.
JSON file
...ANSWER
Answered 2020-Dec-24 at 19:42When adding the image to the list you want to add the drawble id and not the drawable string i.e "@drawable/tojib" like below:
QUESTION
I am not sure why results arent appearing within my ListView. I even have debug logs telling me that both adapter and listview have a count of 2 items, but it still doesnt display anything. Here is the code
SelectPlayerActivity.java
...ANSWER
Answered 2020-Nov-29 at 19:42The ListView
is there, but since you let it have a fixed height of 568dp
its two rows are rendered "behind" other View
s, for example the app bar (in my sample app the second row was partially visible and the first row was covered by a TabLayout)
I changed the constraints for the ListView
as follows to have it appear below the EditText
QUESTION
I have a listview. I assign to the listview a simple adapter. I add data but sometimes the text is bigger than expected. All rows of the listview have the same height. However if i add the word "Afghanistannnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn" the text will not fit into the listview row. So my question is the following. How do i change the row height of the listview based on the length of the text so it is fully visible?
Here is my list item xml
...ANSWER
Answered 2020-Nov-23 at 02:44You need to make the height of the TextView's container wrap_content
QUESTION
I have a problem with the following exception:
...ANSWER
Answered 2020-Jul-28 at 21:19The problem is that the code is calling the SimpleView's
version of findViewById
which is using test.xml, but the ListView
is located in activity_main.xml in the SimpleActivity
.
QUESTION
Devs I am stuck in a serious problem I have a simple listview that has one image view and several text views to display some text and two-button. now problem is that when I set click listener on buttons null pointer error occurred. I google this problem and found a solution to make a custom adapter to resolve this problem but I don't want to use a custom adapter is there any way to solve this problem without a custom adapter class below my code :
...ANSWER
Answered 2020-Nov-02 at 05:32this line:
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