从apk文件中获取图标

Question

我正在开发一个Winform应用程序，使用aapt从apk文件中获取一些信息。我已经得到了应用程序图标的路径，类似于这样：*res/drawable-mdpi/app_icon.png* 我想从其路径获取图标并将其推送到ImageList中。我该如何做？ 提前感谢！

- CodeBlue

---

你可以将其作为一个存档文件打开并获取图标。 - Anirudh Ramanathan

Answer 1

从APK文件中获取图标：

File file = new File("/mnt/sdcard/thinkandroidsimple/pam.apk");
String sourcePath = file.getPath();

if (sourcePath.endsWith(".apk")) {
        PackageInfo packageInfo = context.getPackageManager()
                   .getPackageArchiveInfo(filePath, PackageManager.GET_ACTIVITIES);
        if(packageInfo != null) {
            ApplicationInfo appInfo = packageInfo.applicationInfo;
            if (Build.VERSION.SDK_INT >= 8) {
                appInfo.sourceDir = sourcePath;
                appInfo.publicSourceDir = sourcePath;
            }
            Drawable icon = appInfo.loadIcon(context.getPackageManager());
            Bitmap bmpIcon = ((BitmapDrawable) icon).getBitmap();
        }
    }

详细信息请参见：如何从Android APK文件中获取图标

- hungtdo

Answer 2

请看下面的代码，可能对您有所帮助

   public Drawable getFullResDefaultActivityIcon() {
            return getFullResIcon(Resources.getSystem(), android.R.mipmap.sym_def_app_icon);
        }

public Drawable getFullResIcon(Resources resources, int iconId) {
    Drawable d;
    try {
        ActivityManager activityManager = (ActivityManager) mContext.getSystemService(Context.ACTIVITY_SERVICE);
        int iconDpi = activityManager.getLauncherLargeIconDensity();
        d = resources.getDrawableForDensity(iconId, iconDpi);
    } catch (Resources.NotFoundException e) {
        d = null;
    }

    return (d != null) ? d : getFullResDefaultActivityIcon();
}

public Drawable getFullResIcon(String packageName, int iconId) {
    Resources resources;
    try {
        resources = mContext.getPackageManager().getResourcesForApplication(packageName);
    } catch (PackageManager.NameNotFoundException e) {
        resources = null;
    }
    if (resources != null) {
        if (iconId != 0) {
            return getFullResIcon(resources, iconId);
        }
    }
    return getFullResDefaultActivityIcon();
}

public Drawable getFullResIcon(ResolveInfo info) {
    return getFullResIcon(info.activityInfo);
}

public Drawable getFullResIcon(ActivityInfo info) {
    Resources resources;
    try {
        resources = mContext.getPackageManager().getResourcesForApplication(info.applicationInfo);
    } catch (PackageManager.NameNotFoundException e) {
        resources = null;
    }
    if (resources != null) {
        int iconId = info.getIconResource();
        if (iconId != 0) {
            return getFullResIcon(resources, iconId);
        }
    }
    return getFullResDefaultActivityIcon();
}

private Drawable getAppIcon(ResolveInfo info) {
    return getFullResIcon(info.activityInfo);
}

- Hemantvc

Answer 3

使用WinRar/WinZip或等效工具打开apk文件（就像您打开.zip文件一样），然后从该路径提取文件。

- Voicu