android-architecture | 易学教程

Can I use Room Persistence for a different type of Database?

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问题 I know that room is an abstraction layer over SQLite, I just want to know if I can use it for a different type of Database. I want to use Room to a special version of SQLite with geospatial support, is it possible? I really can't find an answer about this one. Android Spatialite Thanks in advance! 回答1: Yes, if you are willing to write the bridge code for it. One of the methods that you can call on a RoomDatabase.Builder is openHelperFactory(). This takes an instance of SupportSQLiteOpenHelper

Can I use Room Persistence for a different type of Database?

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A dependent feature was defined but no package ID was set. You are probably missing a feature dependency in the base feature

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问题 I am following one of the Google Codelabs for making an Instant App. And I was trying to create topeka-ui ( A UI feature module for Instant Apps ). When I try to run one of the instant app module it says : A dependent feature was defined but no package ID was set. You are probably missing a feature dependency in the base feature. 回答1: I just ran through the codelab on AS 3.0 beta 2 without issues (*note). After what point in the codelab did your issue appear? You might’ve missed a step.

BoundService + LiveData + ViewModel best practice in new Android recommended architecture

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问题 I been struggling a lot thinking about where to place Android Services in the new Android recommended Architecture. I came up with many possible solutions, but I cannot make up my mind about which one is the best approach. I did a lot of research, and I couldn't find any useful guideline nor tutorial. The only hint I found about where to place the Service in my app architecture is this one, from @JoseAlcerreca Medium post Ideally, ViewModels shouldn’t know anything about Android. This

How to share dependencies in a Modularized Android App

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问题 I have an Android project which is architectured in a Modularized way. I have modularized the projects by dividing their source code between multiple Gradle modules, following the clean Architecture. Here is the structure of the App. The top module in this hierarchy, App is the one that no other module depends upon, is the main module of your application. The lower level modules domain and data do not depend on the App module, where the App module includes the data and domain modules. I have

Android - Xwalk crash after Oreo migration

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问题 I want to make some changes to an application targeting Android SDK 22 (5.1) . I loaded the project in Android Studio 3 , got the Gradle upgrade message. Of course, doing that makes the whole thing explode as the way the new Gradle handles dependencies has become very nitpicky. I decided to go all out and just do the whole migration. Would have to do it at some point anyway. The application uses an XWalkView (extended in a class), instead of the native Webview, as we want to have some WebGL

How to Include 64-bit and 32-bit native code in my app

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问题 I can't uplaod my app to playstore got this error I have also build "Android App Bundle" to upload the app but again got this error. This release is not compliant with the Google Play 64-bit requirement The following APKs or App Bundles are available to 64-bit devices, but they only have 32-bit native code: 111. defaultConfig { applicationId "com.iqvis.com.buenosdias" minSdkVersion 17 targetSdkVersion 26 versionCode 111 versionName "10.11" multiDexEnabled true ndk.abiFilters 'armeabi-v7a',

Implementing MVP on a single activity with two (or multiple) fragments

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问题 I'm developing a small application that shows a list, and when an item is clicked it opens a secondary screen with the item details. I want to implement MVP as my architecture for this app, and i have been struggling figuring out how to do that when I have a single activity with 2 fragments . Some questions came up as when an item from the list is clicked, a callback is sent to the first presenter, but at this point, who is in charge of opening the second fragment? do the presenters 'talk' to

What dependencies should one be putting in each module of an instant app?

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问题 I'm in the process of writing an instant app for others to learn how to write an instant app and hoping to get some ideas on how to best structure the app for dependencies. Now reading the Android developer docs on project structure and referencing the diagram below: I'm wondering with the new gradle 3.0 dependency configurations, what libraries should live in which modules? Base Feature I was thinking pretty much anything in the base feature module should be using the api gradle

What dependencies should one be putting in each module of an instant app?

阅读更多关于 What dependencies should one be putting in each module of an instant app?

I'm in the process of writing an instant app for others to learn how to write an instant app and hoping to get some ideas on how to best structure the app for dependencies. Now reading the Android developer docs on project structure and referencing the diagram below: I'm wondering with the new gradle 3.0 dependency configurations , what libraries should live in which modules? Base Feature I was thinking pretty much anything in the base feature module should be using the api gradle configuration since the base feature module essentially compiles down to an AAR library file. One question I might