RxJava | RxJava step by step
kandi X-RAY | RxJava Summary
kandi X-RAY | RxJava Summary
RxJava step by step
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Top functions reviewed by kandi - BETA
- Initializes the activity
- Get user data from internet
- Get user data from local storage
- Initializes the dialog
- Get user data from internet
- Get user data from local storage
- Create a new instance
- Get user data from internet
- Get user data from local storage
- Creates the Retrofit
- Get user data from internet
- Get user data from local storage
- Initializes the activity view
- Get user data from internet
- Get user data from local storage
- Merge image into one
- Convert a byte array to a hex string
- Obtain an editor for the given key
- Download url
- Initialize DiskLruCache
- Rebuilds the log
- Removes an entry from the cache
- Handle click
- Documentation inherited from interface Publisher
- Gets observable
- Sets the views
- Initialize view
- Encrypt data with Base64
- Convert byte array to string
- Convert byte array to hex
- Completes an edit
- ObClick on view
- Initialize the activity
- Button button
RxJava Key Features
RxJava Examples and Code Snippets
Community Discussions
Trending Discussions on RxJava
QUESTION
I am a newbie to RXKotlin/RXJava. I am developing the background service in Android.
In my service, I have
- Bluetooth socket
- TCP Socket
Whenever the data is available on the Bluetooth socket, read and write to the TCP socket. And whenever data is received in the TCP socket, write to the Bluetooth socket.
Can someone help me:
- how to achieve this using Observables?
- how to exchange the socket id information?
- how to exchange the data? Thanks
ANSWER
Answered 2021-Jun-14 at 08:16Please try using RxSubjects (https://blog.mindorks.com/understanding-rxjava-subject-publish-replay-behavior-and-async-subject-224d663d452f)
Let me take PublishSubject as an example here.
QUESTION
I am new into RxJava and I was under the impression that for each event each subscriber is being notified. So if we have N subscribers and a stream of X events the onNext for each of the N subscribers would be called. But when I run the following code:
ANSWER
Answered 2021-Jun-13 at 08:05RxJava sequences are synchronous by default thus the subscribe call above will run your emission code right there. To achieve the interleaving, you need a way to tell the source when both consumers are ready to receive. This can be done several ways:
QUESTION
I am trying to implement the RxJava event bus, where my use case is to get triggered when subscribed and when the event is sent. But with my code even when I send the event once, I am receiving multiple events. It is working fine for the first time, it is behaving weirdly from the second time I login into my application. i.e; For the first time desired code implemented once, for the second time it implemented two time and so on.
...ANSWER
Answered 2021-Jun-10 at 13:42Easy solution is to declare a field:
QUESTION
I have two sequential API calls so I decided to use RxJava flatmap to accomplish it as below code,
...ANSWER
Answered 2021-Jun-07 at 12:37EDIT: I misunderstood the question. To avoid CalledFromWrongThreadException try to put
QUESTION
When I turned minifyEnabled in build.gradle to true, seems like rxjava3 suddenly can't work as expected, when I go through the log and the API response correctly.
So what I do is create a empty new project.
Import Rxjava3 (3.0.13):
implementation "io.reactivex.rxjava3:rxjava:3.0.13"Changed buildTypes to:
ANSWER
Answered 2021-Jun-06 at 07:41Try adding this instead in Proguard.
QUESTION
I have a ViewModel that is observing a RxJava Observable in my MainRepo class. I am trying to get my WebsocketListener in the MainRepo class to emit events, but I'm unsure how to do so.
MainRepo class:
...ANSWER
Answered 2021-Jun-03 at 07:16Try to use PublishSubject, seems like it was created for cases like yours.
QUESTION
I'm studying RxJava to see if I can use it to replace the deprecated AsynTasks in an application created several years ago.
my use case is as follows:
- make an http request on Schedulers.io that returns some rows
- process the rows separately, in parallel threads
- update the UI on main thread only when all rows have been processed
is there a way to do step 2 easily in rx java?
Below is a code example.
Thanks
...ANSWER
Answered 2021-Jun-03 at 16:43After several attempts I came to this solution.
By adding logs to the processRow function I saw that it is called in parallel for multiple rows, as always, at the end the onComplete is called.
QUESTION
I'm converting some RxJava code to Kotlin Flow in a project.
I came across a piece of code where BehaviorSubject#onError(Throwable) was being called.
I didn't find any way to do it with a Flow object.
ANSWER
Answered 2021-Jun-03 at 13:17From the docs: "SharedFlow cannot be closed like BroadcastChannel and can never represent a failure. All errors and completion signals should be explicitly materialized if needed."
So you'd probably have to create a data class with slots for values and the exception, then use takeWhile to stop it.
(Sidenote: I happen to have a BehaviorSubject for kotlin flow that does offer an error channel.)
QUESTION
I have many request merged in Observable, and I need a Timeout Not for every emission but for complete observable in RXjava. Is it Possible??
...ANSWER
Answered 2021-May-31 at 13:18You could use takeUntil with a delayed error:
QUESTION
I am developing an android app. I'm having a hard time writing code that adds a to-do list to a calendar. Let me show you the code first.
...ANSWER
Answered 2021-May-30 at 22:19Change Dispatchers.Default to Dispatchers.IO
This is a database operation and it should be handled on an IO thread, Default is a real heavy duty CPU thread.
Using RxJava is a good way to standardize your database interactions, it allows you to stay off the UI thread and setups up an Observer pattern to allow you to react to the data as you get it instead of waiting for it.
If they close the app while this operation is happening there is not much you can do, as this is handled under 1 transaction. As such the actual changes to the database are only handled at the end, meaning if the operation doesn't complete nothing gets inserted. But you also don't want to do this 1 transaction at a time because that is extremely slow. Its a reliability vs speed question.
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install RxJava
You can use RxJava 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 RxJava 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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