android - 如何以编程方式从 sdcard/storage .apk 文件中获取 appicon？

Question

使用ApplicationInfo我已经尝试过并且效果很好，但它只显示已安装应用程序的应用程序图标。但我想以编程方式从文件路径（.apk 文件）中获取 appicon。

Drawable icon=applicationInfo.loadIcon(getPackageManager());

我想从 apk 文件中获取 appicon。此文件已存储在存储中。

那么有没有办法从.apk文件中获取图标/拇指以编程方式显示appicon？

Answer 1

您可以从 APK 文件中获取该信息：

 String apkPath = "path/to/apk/file.apk"; 
 PackageManager packageManager = context.getPackageManager();
 PackageInfo packageInfo = packageManager.getPackageArchiveInfo(apkPath, 0);

 // you need to set this variables manually for some reason to get icon from APK file that has not been installed
 packageInfo.applicationInfo.sourceDir       = apkPath;
 packageInfo.applicationInfo.publicSourceDir = apkPath;

 Drawable icon = packageInfo.applicationInfo.loadIcon(packageManager);