关于 Cannot install platform packages to user storage

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Cannot install platform packages to user storage

这是由于android2.3.7上限制用户安装有platform签名的apk包

源码在

ANDROID/frameworks/base/services/java/com/android/server/PackageManagerService.java

        if (!pkg.applicationInfo.sourceDir.startsWith(Environment.getRootDirectory().getPath()) &&                !pkg.applicationInfo.sourceDir.startsWith("/vendor")) {            Object obj = mSettings.getUserIdLP(1000);            Signature[] s1 = null;            if (obj instanceof SharedUserSetting) {                s1 = ((SharedUserSetting)obj).signatures.mSignatures;            }            if ((checkSignaturesLP(pkg.mSignatures, s1) == PackageManager.SIGNATURE_MATCH)) {                Slog.w(TAG, "Cannot install platform packages to user storage");                mLastScanError = PackageManager.INSTALL_FAILED_INVALID_INSTALL_LOCATION;                return null;            }        }