Android Studio Youtube 导入问题.'YouTubePlayerSupportFragment 无法解析'

问题描述

我正在尝试使用 Android Studio IDE 在应用程序中开发 youtube 功能.这是我目前的代码:

I am trying to develop youtube functionality within an application using the Android Studio IDE. This is my code currently:

-

问题与进口有关.现在，我在正确的位置导入了 JAR 文件(我相信):

我也按照指示将它添加到 build.gradle 文件中:

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile 'com.android.support:appcompat-v7:21.0.3'
    compile 'com.google.apis:google-api-services-youtube:v3-rev125-1.19.1'
}

而且我也确认它在正确的项目结构中:

我已经看过这个 stackoverflow，但没有任何帮助:YouTubePlayerSupportFragment 无法解析为类型

I have already looked at this stackoverflow, but there was no help there: YouTubePlayerSupportFragment cannot be resolved to a type

我已经清理"了应用程序，关闭并打开了 Android Studio，并重新启动了计算机，但我完全不知道为什么这不能识别导入.谁能帮助我了解我需要做什么才能让这些导入正常运行?

I have already 'cleaned' the app, closed and opened Android Studio, and rebooted the computer, but I am completely out of ideas as to why this is not recognizing the imports. Can anyone help me understand what I need to do to allow these imports to function correctly?

先谢谢你！

-Sil

推荐答案

我遇到了类似的问题.当我最终解决它时，我的 build.gradle 文件中不需要任何内容​​(任何一个).将 .jar 文件放在 libs 文件夹中就是我需要做的所有事情.看起来您发现了相同的结果，但我想列出整个步骤序列，以便任何阅读这篇文章的人都能澄清.

I had a similar issue. When I finally resolved it, I did NOT need anything in my build.gradle file (either one). Putting the .jar file in the libs folder was all that I need to do. Looks like you found the same result, but I wanted to list out the entire sequence of steps for clarification to anyone who reads this post.

基本上，这就是所需要的:

Essentially, this is all that is required:

1. 从此处下载 .jar 文件.
2. 确保有一个名为 libs 的文件夹，它是 src 文件夹的同级文件夹(两者都应该是 app 的子文件夹)文件夹.
3. 将该 .jar 文件复制到 libs 文件夹中.

4. 确保您的 build.gradle 文件(Module: app 一个，而不是 Project: 一个)在依赖项部分包含这一行:

1. Download the .jar file from here.
2. Make sure that there is a folder called libs that is a sibling folder to your src folder (both should be children of the app folder.
3. Copy that .jar file into the libs folder.

4. Make sure that your build.gradle file (the Module: app one, not the Project: one) has this line in the dependencies section:

compile fileTree(dir: 'libs', include: ['*.jar'])

compile fileTree(dir: 'libs', include: ['*.jar'])

重新构建项目，它应该可以工作了.至少对我来说是这样.

Rebuild the project, and it should work. It did for me, at least.

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