Ionic android build 生成未签名的 apk，但不要安装在我的 android 8.1.0 中答案

【问题标题】：Ionic android build generate unsigned apk, but donot install in my android 8.1.0Ionic android build 生成未签名的 apk，但不要安装在我的 android 8.1.0 中
【发布时间】：2019-08-22 06:58:02
【问题描述】：

当我提供 ionic 应用程序时，它可以在浏览器中运行，但用于 android 的构建 apk 无法正常工作。 apk 无法安装。

我尝试了 ionic cordova build android --release

带有以下消息的构建过程

Checking Java JDK and Android SDK versions
ANDROID_SDK_ROOT=undefined (recommended setting)
ANDROID_HOME=C:\Users\ruban\AppData\Local\Android\Sdk (DEPRECATED)
Subproject Path: CordovaLib
Subproject Path: app
> Task :app:preBuild UP-TO-DATE
> Task :CordovaLib:preBuild UP-TO-DATE
> Task :CordovaLib:preReleaseBuild UP-TO-DATE
> Task :CordovaLib:checkReleaseManifest UP-TO-DATE
> Task :CordovaLib:processReleaseManifest UP-TO-DATE
> Task :app:preReleaseBuild UP-TO-DATE`

D:\myApp\platforms\android\app\src\main\res\drawable-land-hdpi\screen.png: Error: The drawable "screen" in drawable-land-hdpi has no declaration in the base drawable folder or in a drawable-densitydpi folder; this can lead to crashes when the drawable is queried in a configuration that does not match this qualifier [MissingDefaultResource]
D:\myApp\platforms\android\app\src\main\res\drawable-land-ldpi\screen.png: Error: The drawable "screen" in drawable-land-ldpi has no declaration in the base drawable folder or in a drawable-densitydpi folder; this can lead to crashes when the drawable is queried in a configuration that does not match this qualifier [MissingDefaultResource]
D:\myApp\platforms\android\app\src\main\res\drawable-land-mdpi\screen.png: Error: The drawable "screen" in drawable-land-mdpi has no declaration in the base drawable folder or in a drawable-densitydpi folder; this can lead to crashes when the drawable is queried in a configuration that does not match this qualifier [MissingDefaultResource]
D:\myApp\platforms\android\app\src\main\res\drawable-land-xhdpi\screen.png: Error: The drawable "screen" in drawable-land-xhdpi has no declaration in the base drawable folder or in a drawable-densitydpi folder; this can lead to crashes when the drawable is queried in a configuration that does not match this qualifier [MissingDefaultResource]
D:\myApp\platforms\android\app\src\main\res\drawable-land-xxhdpi\screen.png: Error: The drawable "screen" in drawable-land-xxhdpi has no declaration in the base drawable folder or in a drawable-densitydpi folder; this can lead to crashes when the drawable is queried in a configuration that does not match this qualifier [MissingDefaultResource]
D:\myApp\platforms\android\app\src\main\res\drawable-land-xxxhdpi\screen.png: Error: The drawable "screen" in drawable-land-xxxhdpi has no declaration in the base drawable folder or in a drawable-densitydpi folder; this can lead to crashes when the drawable is queried in a configuration that does not match this qualifier [MissingDefaultResource]
D:\myApp\platforms\android\app\src\main\res\drawable-port-hdpi\screen.png: Error: The drawable "screen" in drawable-port-hdpi has no declaration in the base drawable folder or in a drawable-densitydpi folder; this can lead to crashes when the drawable is queried in a configuration that does not match this qualifier [MissingDefaultResource]
D:\myApp\platforms\android\app\src\main\res\drawable-port-ldpi\screen.png: Error: The drawable "screen" in drawable-port-ldpi has no declaration in the base drawable folder or in a drawable-densitydpi folder; this can lead to crashes when the drawable is queried in a configuration that does not match this qualifier [MissingDefaultResource]
D:\myApp\platforms\android\app\src\main\res\drawable-port-mdpi\screen.png: Error: The drawable "screen" in drawable-port-mdpi has no declaration in the base drawable folder or in a drawable-densitydpi folder; this can lead to crashes when the drawable is queried in a configuration that does not match this qualifier [MissingDefaultResource]
D:\myApp\platforms\android\app\src\main\res\drawable-port-xhdpi\screen.png: Error: The drawable "screen" in drawable-port-xhdpi has no declaration in the base drawable folder or in a drawable-densitydpi folder; this can lead to crashes when the drawable is queried in a configuration that does not match this qualifier [MissingDefaultResource]
D:\myApp\platforms\android\app\src\main\res\drawable-port-xxhdpi\screen.png: Error: The drawable "screen" in drawable-port-xxhdpi has no declaration in the base drawable folder or in a drawable-densitydpi folder; this can lead to crashes when the drawable is queried in a configuration that does not match this qualifier [MissingDefaultResource]
D:\myApp\platforms\android\app\src\main\res\drawable-port-xxxhdpi\screen.png: Error: The drawable "screen" in drawable-port-xxxhdpi has no declaration in the base drawable folder or in a drawable-densitydpi folder; this can lead to crashes when the drawable is queried in a configuration that does not match this qualifier [MissingDefaultResource]

构建会创建未签名的 apk 文件，该文件不会安装在我的 Android 设备上。

Ionic info 命令显示以下消息离子：

   ionic (Ionic CLI)             : 4.12.0 (C:\Users\ruban\AppData\Roaming\nvm\v10.15.3\node_modules\ionic)
   Ionic Framework               : @ionic/angular 4.1.2
   @angular-devkit/build-angular : 0.13.7
   @angular-devkit/schematics    : 7.2.4
   @angular/cli                  : 7.3.7
   @ionic/angular-toolkit        : 1.4.1

科尔多瓦：

   cordova (Cordova CLI) : 9.0.0
   Cordova Platforms     : android 8.0.0
   Cordova Plugins       : cordova-plugin-ionic-keyboard 2.1.3, cordova-plugin-ionic-webview 3.1.2, (and 4 other plugins)

系统：

   Android SDK Tools : 26.1.1 (C:\Users\ruban\AppData\Local\Android\Sdk)
   NodeJS            : v10.15.3 (C:\Program Files\nodejs\node.exe)
   npm               : 6.4.1
   OS                : Windows 10

【问题讨论】：

你试过没有 --release 标志
没有--release没有报错，但是apk还是无法安装
每当我尝试安装它时，它都会显示“未安装应用程序”
你能告诉我参数是什么--release for
IT 工作构建没有 --release 工作，但你能告诉我 --release 的重要性

标签： cordova ionic-framework

【解决方案1】：

我认为您尚未生成 resources。尝试以下方法：

ionic cordova resources

【讨论】：

apk 无法安装，但它在 webview 上运行，当我执行 ionic 服务时
尝试在设备上运行，看看是什么错误。
离子科尔多瓦运行 android
在做 ionic cordova 时运行 android BUILD SUCCESSFUL in 8s 42 actionable tasks: 42 up-to-date Built the following apk(s): D:\myApp\platforms\android\app\build\outputs\apk\debug\app-debug.apk Checking Java JDK and Android SDK versions ANDROID_SDK_ROOT=undefined (recommended setting) ANDROID_HOME=C:\Users\ruban\AppData\Local\Android\Sdk (DEPRECATED) No target specified and no devices found, deploying to emulator Using apk: D:\myApp\platforms\android\app\build\outputs\apk\debug\app-debug.apk Package name: io.ionic.starter INSTALL SUCCESS LAUNCH SUCCESS
好的，那就没问题了。你正在做的是你正在尝试安装一个未签名的发布 apk，它不被接受。

【解决方案2】：

你需要把ANDROID_HOME放到你的PATH

设置 ANDROID_HOME=C:\Users\adt-bundle-windows-x86-20140321\sdk\tools

设置 PATH=%PATH%;%ANDROID_HOME%\tools;%ANDROID_HOME%\platform-tools

【讨论】：

我必须设置set ANDROID_HOME=C:\Users\adt-bundle-windows-x86-20140321\sdk\tools or set ANDROID_HOME=C:\Users\adt-bundle-windows-x86-20140321\sdk

【解决方案3】：

在android中简单运行应用程序：

1) 连接设备并确保启用 USB 调试（在设置 - 开发者选项中）

2) 在 cmd 中输入：adb devices

3) 现在运行：ionic cordova run android

（Ionic cli 将完成所有操作并安装在您的设备中。）

【讨论】：

【解决方案4】：

您无需修复任何问题，因为这不是错误。但如果你想修复它...

如果您不喜欢此提醒，您应该将下一行添加到 config.xml 文件中

<splash density="ldpi" src="resources/android/splash/drawable-ldpi-screen.png" />
<splash density="mdpi" src="resources/android/splash/drawable-mdpi-screen.png" />
<splash density="hdpi" src="resources/android/splash/drawable-hdpi-screen.png" />
<splash density="xhdpi" src="resources/android/splash/drawable-xhdpi-screen.png" />
<splash density="xxhdpi" src="resources/android/splash/drawable-xxhdpi-screen.png" />
<splash density="xxxhdpi" src="resources/android/splash/drawable-xxxhdpi-screen.png" />

资源可以是drawable-xxxhdpi-screen ...或者你可以使用端口或土地。

使用下一行，您应该能够生成签名密钥

keytool -genkey -v -keystore ejemlo.keystore -alias alias_name -keyalg RSA -keysize 2048 -validity 10000

下一行您将能够签署您的应用程序

jarsigner -verbose -sigalg SHA1withRSA -digestalg SHA1 -keystore ejemlo.keystore app-release-unsigned.apk alias_name

这样您就可以对 apk 进行签名，然后您就可以在 Android 中安装该应用了。

这对我有用。

【讨论】：