SolutionCouldn’t find meta-data for provider with authority

Today, when I reused the code related to installing the APK that I wrote before, an error occurred. That is because the higher version of Android requires a new FileProvider. New file_paths <?xml version=”1.0″ encoding=”utf-8″?> <paths xmlns:android=”http://schemas.android.com/apk/res/android”> <!– <root-path name=”root” path=”” />–> <files-path name=”files” path=”files” /> <cache-path name=”cache” path=”files” /> <!– <external-path name=”external” path=”files” />–> […]

AuthenticationProvider interface

Authentication authenticate(Authentication authentication) throws AuthenticationException; boolean supports(Class<?> authentication); AnonymousAuthenticationProvider implementation class //Anonymous authentication //The permissions in AnonymousAuthenticationToken cannot be null public class AnonymousAuthenticationProvider { // AnonymousAuthenticationToken.getKeyHash() must be equal to the key // The key must not be null private String key; // The implementation class of Authentication must be AnonymousAuthenticationToken to perform authentication. @Override […]

Solve Not possible to connect to the Web3 provider. Make sure the provider is running and a connection

Table of Contents Solve the problem of “Not possible to connect to the Web3 provider. Make sure the provider is running and a connection” Problem identification solution Sample code: Connecting to a Web3 provider in conclusion Solve”Not possible to connect to the Web3 provider. Make sure the provider is running and a connection” problem When […]

What happens if the authorities of Android|FileProvider have the same name?

Let’s talk about the conclusion first: If there are two or more FileProvider authorities with the same name, then only the configuration ranked first in the merged AndroidManifest.xml file will take effect. Scene There is a self-upgrade function in the application. After downloading the apk, provide the Uri through FileProvider for installation. After I modified […]

Android Content Provider

Content Provider (1) The Android platform provides Content Provider to provide the specified data set of an application to other applications. Other applications can obtain or store data from this content provider through the ContentResolver class. (2) Content providers are only needed if data needs to be shared between multiple applications. For example, address book […]

System.Data.Entity.Core.EntityException: The underlying provider failed on Open. —> System.Invalid…

2017/8/15 20:55:21 [AgentPayQuery_205506102_1BBBB] System exception: System.Data.Entity.Core.EntityException: The underlying provider failed on Open. —> System.InvalidOperationException: The timeout has expired. The timeout has expired, but the connection has not been obtained from the pool. This may occur because all pooled connections are in use and the maximum pool size has been reached. at System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource`1 retry, […]

The zookeeper registration center node still exists after the dubbo provider stops the service

The dubbo service is stopped, but there is still the node on zk. In this case, the client will fail to call when consuming. There are many reasons for this problem. Let me start with my solution, which is to upgrade the dubbo version from 2.7.1 to 2.7.3. Ok, after talking about the solution, let’s […]

[Cloud Computing Network Security] DDoS Mitigation Analysis: DDoS attack mitigation strategies, choosing the best provider and key considerations

Article directory I. Introduction 2. What is DDoS mitigation? 3. DDoS Mitigation Stage 4. How to choose a DDoS mitigation provider 4.1 Network capacity 4.2 Processing capabilities 4.3 Scalability 4.4 Flexibility 4.5 Reliability 4.6 Other considerations 4.6.1 Pricing 4.6.2 Direction of focus At the end of the article, a book titled “Secure Circulation of Data […]

Context in React: the relationship between context and provider; is there a priority between createContext parameters and Provider parameters?

Recently, I was studying React by myself and learned one of its centralized state management tools, Mobx. In the process of using Mobx for data transfer, when modularizing the Store, the context API of React is used to export a unified useStore method for use by business components. Preface Mobx uses context to export modules […]

Hongmeng Development (JAVA) uses SurfaceProvider+Player to implement the local video playback function.

1. Apply for read memory permission, please see the official documentation for details: https://developer.harmonyos.com/cn/docs/documentation/doc-guides/security-permissions-guidelines-0000000000029886 To play a single video, just refer to the official website’s documentation. The main thing here is to automatically play multiple videos in a loop, and you can control the previous song, next song, pause and play functions of the video. […]