194 questions
ActiveAndroid is bothering me because I don't know how to insert data.book.title=Book; book.save(); I understand that it will be inserted as above, but I'm thinking about how to insert data into the m...
This is my first question.We are developing an application to introduce a store in a certain area. There are nine buttons on the top page, separated by each category.For example, if you press a button...
When writing JSON data specifications, what format and tools do you usually use to write specifications?If possible, I would appreciate it if you could tell me some tools that can automatically genera...
I am currently studying Python and am writing a program using the API.However, I would like to use a one-dimensional array for the values to be set in JSON, but it does not work.How should I describe ...
public class MainActivity extensions AppCompatActivity{ @ Override protected void onCreate (Bundle savedInstanceState) { ObjectMapper mapper = new ObjectMapper(); try{ JackSon response=mapper.readV...
I'd like to submit JSON's response as follows, but it's clogged up.Could you give me some advice?Currently [[book, 10], [pen, 100]]Goals [ { category:book amount —10 }, { category:pen amount: 100 }]Cu...
We are trying to implement the ability to display hexadecimal image data sent from the server side in Swift.However, I don't know how to process the hexadecimal image data and display it as an image.N...
I only want to display null when loading the json file, but I can't do it well.Here's the code.time.json{ fromTokyo: {air: 1 hour 30 min, train: null, bus: null}, fromOsaka: {air: 1 hour 45 min, train...
For example, when the Reservation model is created, I would like to create a corresponding JSON file.I think I should add the json column to the Reservation model and store the path to the json file, ...
I am currently writing the code with react.I am displaying the data in json format that I received from axios.I'd like to display this image until 2020-03-18, but I don't know how to display it becaus...
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