flutter Image.network 不适用于发布 apk [英] flutter Image.network not working on release apk

问题描述

遇到奇怪的问题.如果我在模拟器中运行应用程序，则工作正常.如果我通过连接 android 设备安装应用程序工作正常.但是如果我通过flutter build apk制作了apk并安装在设备中.

网络图片不来了?为什么?有什么问题吗?无需提供代码.对于显示网络图片，我使用简单的 Image.network 和来自谷歌图片的 url.

我尝试过 flutter clean 然后 flutter build apk --release 但同样的问题来了

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发行版 APK 不起作用:

Uer-MacBook-Air:AppName user$ flutter build apk --release初始化gradle... 2.0s解决依赖... 3.1s正在运行 Gradle 任务 'assembleRelease'...运行 Gradle 任务 'assembleRelease'... 完成 63.4s内置 build/app/outputs/apk/release/app-release.apk (8.1MB).

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通过调试 APK 工作

Uer-MacBook-Air:AppName user$ flutter build apk --debug初始化gradle... 3.5s解决依赖... 5.5s正在运行 Gradle 任务assembleDebug"...运行 Gradle 任务 'assembleDebug'... 完成 36.2s构建 build/app/outputs/apk/debug/app-debug.apk.

有人遇到过这种问题吗?我已经通过 flutter build apk 安装了许多 apk 并且工作正常，现在不能在发布模式下工作?但是当我尝试使用调试模式 flutter build apk --debug 时，它的工作正常意味着图像正在显示吗?

我必须为发布模式apk添加一些权限吗?

解决方案

是的，将这些权限添加到 AndroidManifest.xml 中即可使用

<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>

更新:只有 INTERNET 权限就足够了

Getting weird issue. If I run app in simulator, works fine. If I installed app by connecting android device works fine. But if I made apk by flutter build apk and installed in device.

Network image not coming? Why? any thing is going wrong? No need to provide code. For display network image, I'm using simple Image.network with url from google image.

I have tried with flutter clean and then flutter build apk --release but same issue coming

NOT WORKING BY RELEASE APK:

Uer-MacBook-Air:AppName user$ flutter build apk --release
Initializing gradle...                                              2.0s
Resolving dependencies...                                           3.1s
Running Gradle task 'assembleRelease'...                                
Running Gradle task 'assembleRelease'... Done                      63.4s
Built build/app/outputs/apk/release/app-release.apk (8.1MB).

WORKING BY DEBUG APK

Uer-MacBook-Air:AppName user$ flutter build apk --debug 
Initializing gradle...                                              3.5s
Resolving dependencies...                                           5.5s
Running Gradle task 'assembleDebug'...                                  
Running Gradle task 'assembleDebug'... Done                        36.2s
Built build/app/outputs/apk/debug/app-debug.apk.

Anybody has faced this type of issue? I have installed many apk by flutter build apk and that was work fine and right now not working in release mode? But when I tried with debug mode flutter build apk --debug its working fine means images are displaying?

What I have to add some permission for release mode apk?

解决方案

Yes, add these permissions to AndroidManifest.xml and it will work

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

Updated: only INTERNET permission is enough

<uses-permission android:name="android.permission.INTERNET" />

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