在debug buildvariant中无法访问/ res / raw下的文件 [英] File under /res/raw not accessible in Debug buildvariant

问题描述

在Android Studio / Gradle Android项目中，我有两个构建变体，Debug和Release（标准项目设置）。

您可以在此图片中看到我的文件夹结构： $ b

我有一个WebView，应该显示imprint.html从/ res /原始文件夹。
这适用于发布版本，但不适用于调试版本，WebView说

 无法加载网站'file /// android_res / raw / imprint.hml $ b $ net :: EE_FILE_NOT_FOUND 
  

其中困惑我。

我做错了什么？

解决方案

尝试删除后缀到您的调试模式。

另外，请确保您有proguard规则

  -keepclassmembers class ** .R $ * {public static< fields> ;;} 
 -keep class ** .R $ * 
  

编辑：
在找出问题后（调试应用程序包后缀.debug），尝试以这种方式加载文件：

  String path =android.resource：//+ getPackageName（）+/+ R.raw.my_web_file; 
 Uri myFileUri = Uri.parse（path）; 
 File file = new File（myFileUri.toString（））; 
 webview.loadUrl（file.getAbsolutePath（））; 
  

第二编辑：
如果仍然不起作用（尽管对我而言） ，试试这个：使用输入流将文件加载到webview。

  String prompt =; 
尝试{
 InputStream inputStream = getResources（）。openRawResource（R.raw.my_web_file）; 
 byte [] buffer = new byte [inputStream.available（）]; 
 inputStream.read（buffer）; 
 prompt = new String（buffer）; 
 inputStream.close（）; 
} catch（IOException e）{
 e.printStackTrace（）; 
} 
 
 webview.loadData（提示符，text / html，utf-8）; 
  

In an Android Studio / Gradle Android project, I have two build variants, Debug And Release (the standard project setup).

You can see my folder structure in this picture:

I have a WebView that should display the imprint.html from the /res/raw-folder. This works in teh release build, but not the debug build, the WebView says

Couldn't load website under 'file///android_res/raw/imprint.hml
net::EE_FILE_NOT_FOUND

which puzzles me.

What am I doing wrong?

解决方案

Try removing the suffix to your debug mode.

Also, please make sure in proguard rules you have

-keepclassmembers class **.R$* {public static <fields>;}
-keep class **.R$*

EDIT: After figuring out the problem (the debug app package suffix ".debug"), try to load the file this way:

    String path = "android.resource://" + getPackageName() + "/" + R.raw.my_web_file;
    Uri myFileUri = Uri.parse(path);
    File file = new File(myFileUri.toString());
    webview.loadUrl(file.getAbsolutePath());

2nd EDIT: If that still doesn't work (although for me it works), try this: load the file to the webview using an input stream.

String prompt = "";
try {
    InputStream inputStream = getResources().openRawResource(R.raw.my_web_file);
    byte[] buffer = new byte[inputStream.available()];
    inputStream.read(buffer);
    prompt = new String(buffer);
    inputStream.close();
} catch (IOException e) {
    e.printStackTrace();
}

webview.loadData(prompt,"text/html","utf-8");

这篇关于在debug buildvariant中无法访问/ res / raw下的文件的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！