kotlin

Paging 3.0 list with new params in Kotlin

由 元气小坏坏 提交于 2021-01-24 08:34:07
问题 I have the following code: val history: Flow<PagingData<Any>> = Pager(PagingConfig(pageSize = 10)) { PaginationBaseDataSource(apiService) }.flow .cachedIn(viewModelScope) This currently is displaying a list of items without any additional params. This works Ok... But now I wish to query this list based in certain params that the user can change in frontend, let´s say I wish to add the parameter 3 as a query. val history: Flow<PagingData<Any>> = Pager(PagingConfig(pageSize = 10)) {

Upgrade new Google Play Console has effect to app's license key is available in the Play Console

由 北战南征 提交于 2021-01-24 08:33:25
问题 All developers will get the new Google Play Console on November 2, 2020 enter link description here. Is App's license key is available in the Play Console effect? Please help me to explain this issue. Thank you for help. 回答1: Welcome to stackoverflow On the new Google Play Console select the app, then go to Monetize >> Monetization Setup and you will see the Base64-encoded RSA public key 回答2: Many changes has been done in the new console, so to get BASE64 PUBLIC KEY you follow as in the below

How can I more efficently download large files over http?

由 ε祈祈猫儿з 提交于 2021-01-24 08:01:22
问题 I'm trying to download large files (<1GB) in Kotlin since I already knew I'm using okhttp and pretty much followed just used the answer from this question. Except that I'm using Kotlin instead of java, so the syntax is slightly diffrent. val client = OkHttpClient() val request = Request.Builder().url(urlString).build() val response = client.newCall(request).execute() val is = response.body().byteStream() val input = BufferedInputStream(is) val output = FileOutputStream(file) val data =

How can I more efficently download large files over http?

由 旧街凉风 提交于 2021-01-24 08:01:07
问题 I'm trying to download large files (<1GB) in Kotlin since I already knew I'm using okhttp and pretty much followed just used the answer from this question. Except that I'm using Kotlin instead of java, so the syntax is slightly diffrent. val client = OkHttpClient() val request = Request.Builder().url(urlString).build() val response = client.newCall(request).execute() val is = response.body().byteStream() val input = BufferedInputStream(is) val output = FileOutputStream(file) val data =

Using Kotlin Library in java

由 我们两清 提交于 2021-01-23 06:27:57
问题 I am trying to use a GitHub library (MeowBottomNavigation)in Android Studio.But its written in kotlin and i cant use the listeners in it. The only thing which is given is this bottomNavigation.setOnShowListener { } bottomNavigation.setOnClickMenuListener { } the suggestions shows to use (Function1) i am not sure as to how to implement this in java . Any help will be appreciated. I am familiar with java but the library is written in Kotlin. Is there any way to use these listeners in java?

Using Kotlin Library in java

由 对着背影说爱祢 提交于 2021-01-23 06:27:55
问题 I am trying to use a GitHub library (MeowBottomNavigation)in Android Studio.But its written in kotlin and i cant use the listeners in it. The only thing which is given is this bottomNavigation.setOnShowListener { } bottomNavigation.setOnClickMenuListener { } the suggestions shows to use (Function1) i am not sure as to how to implement this in java . Any help will be appreciated. I am familiar with java but the library is written in Kotlin. Is there any way to use these listeners in java?

Spring R2DBC DatabaseClient.as(…)

由 南笙酒味 提交于 2021-01-22 01:01:15
问题 In my spring-boot 2.3 application, I have a simple data method using DatabaseClient : fun getCurrentTime(): Mono<LocalDateTime> = databaseClient .execute("SELECT NOW()") .asType<LocalDateTime>() .fetch() .first() } With spring-boot 2.4 (and spring 5.3 and spring-data-r2dbc 1.2), org.springframework.data.r2dbc.core.DatabaseClient from spring-data-r2dbc is deprecated in favor of org.springframework.r2dbc.core.DatabaseClient of spring-r2dbc - which has a different API. Adapting that is pretty

Spring R2DBC DatabaseClient.as(…)

由 你离开我真会死。 提交于 2021-01-22 01:00:22
问题 In my spring-boot 2.3 application, I have a simple data method using DatabaseClient : fun getCurrentTime(): Mono<LocalDateTime> = databaseClient .execute("SELECT NOW()") .asType<LocalDateTime>() .fetch() .first() } With spring-boot 2.4 (and spring 5.3 and spring-data-r2dbc 1.2), org.springframework.data.r2dbc.core.DatabaseClient from spring-data-r2dbc is deprecated in favor of org.springframework.r2dbc.core.DatabaseClient of spring-r2dbc - which has a different API. Adapting that is pretty

Java后端部署以及与Android通信注意事项

由 空扰寡人 提交于 2021-01-21 13:00:19
1 概述 本文列举了一些 Android +后端 Java 通信/部署时的问题以及注意事项，覆盖的问题包括但不限于安全组、数据库、路径等，如果各位读者的 Android 端不能正常访问 Java 后端，希望这里的解决方案能帮助到您。 2 分类 这里将问题分为三类： Java 端问题 Android 端问题 其他杂项问题 先来看一下 Java 端可能出现的问题。 3 Java 端 包括： 数据库 安全组/防火墙 404 3.1 数据库 3.1.1 驱动 注意 MySQL5.7 与 MySQL8 注册驱动时是不一样的， MySQL5.7 是： Class.forName("com.mysql.jdbc.Driver"); MySQL8 以上是： Class.forName("com.mysql.cj.jdbc.Driver"); 另外要注意 JAR 包版本正确。 3.1.2 用户名/密码/权限 首先需要确保配置文件中的访问数据库的用户名以及密码要正确，不然的话可能会出现各种空指针错误，另外需要确保该用户对目标数据库或表具有对应的权限。 3.1.3 Spring Boot 中的加密配置 在 application.yaml / application.yml / application.properties 中配置对应的用户名以及密码，一般明文是没问题的，这里是针对使用了 Jasypt

How to use Kotlin when to find if a string is numeric?

由 ℡╲_俬逩灬. 提交于 2021-01-21 12:12:05
问题 I'd like to use a when() expression in Kotlin to return different values from a function. The input is a String , but it might be parsable to an Int , so I'd like to return the parsed Int if possible, or a String if it is not. Since the input is a String I can not use the is type check expression. Is there any idiomatic way to achieve that? Edit: My problem is how the when() expression should look like, not about the return type. 回答1: Version 1 (using toIntOrNull and when when as requested)
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