解决安卓9 签名校验报错 java.lang.NoSuchMethodException: collectCertificates

最新推荐文章于 2024-01-15 14:04:31 发布

转载最新推荐文章于 2024-01-15 14:04:31 发布 · 1.4k 阅读

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本文详细介绍了如何在Android 9系统中解决签名校验失败的问题，通过深入解析PackageParser类的方法调用，提供了适用于不同API级别的解决方案。

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最讲有客户反馈签名校验失败了，后来查看发现是安卓9的系统改了方法了，调用签名校验的方法时抛出了异常
java.lang.NoSuchMethodException: collectCertificates [class android.content.pm.PackageParser$Package, int]

来自https://www.cnblogs.com/lucktian/p/10221266.html

public static byte[] getAPKSignatures(String apkPath) {
        String PATH_PackageParser = "android.content.pm.PackageParser";
        try {
            // apk包的文件路径
            // 这是一个Package 解释器, 是隐藏的
            // 构造函数的参数只有一个, apk文件的路径
            // PackageParser packageParser = new PackageParser(apkPath);
            Class pkgParserCls = Class.forName(PATH_PackageParser);
            Class[] typeArgs = new Class[1];
            typeArgs[0] = String.class;
            // 这个是与显示有关的, 里面涉及到一些像素显示等等, 我们使用默认的情况
            DisplayMetrics metrics = new DisplayMetrics();
            metrics.setToDefaults();
            Constructor pkgParserCt = null;
            Object pkgParser = null;
            if (Build.VERSION.SDK_INT > 20) {
                pkgParserCt = pkgParserCls.getConstructor();
                pkgParser = pkgParserCt.newInstance();
                Method pkgParser_parsePackageMtd = pkgParserCls.getDeclaredMethod("parsePackage", File.class, int.class);
                Object pkgParserPkg = pkgParser_parsePackageMtd.invoke(pkgParser, new File(apkPath), PackageManager.GET_SIGNATURES);

                if (Build.VERSION.SDK_INT >= 28) {
                    Method pkgParser_collectCertificatesMtd = pkgParserCls.getDeclaredMethod("collectCertificates", pkgParserPkg.getClass(), Boolean.TYPE);

                    pkgParser_collectCertificatesMtd.invoke(pkgParser, pkgParserPkg, Build.VERSION.SDK_INT > 28);
//                    Method pkgParser_collectCertificatesMtd = pkgParserCls.getDeclaredMethod("collectCertificates", pkgParserPkg.getClass(), Boolean.TYPE);
//                    pkgParser_collectCertificatesMtd.invoke(pkgParser, pkgParserPkg, false);

                    Field mSigningDetailsField = pkgParserPkg.getClass().getDeclaredField("mSigningDetails"); // SigningDetails
                    mSigningDetailsField.setAccessible(true);

                    Object mSigningDetails = mSigningDetailsField.get(pkgParserPkg);
                    Field infoField = mSigningDetails.getClass().getDeclaredField("signatures");
                    infoField.setAccessible(true);
                    Signature[] info = (Signature[]) infoField.get(mSigningDetails);
                    Signature apkSignature = info.length > 0 ? info[0] : null;
                    return apkSignature.toByteArray();

                } else {
                    Method pkgParser_collectCertificatesMtd = pkgParserCls.getDeclaredMethod("collectCertificates", pkgParserPkg.getClass(), Integer.TYPE);
                    pkgParser_collectCertificatesMtd.invoke(pkgParser, pkgParserPkg, PackageManager.GET_SIGNATURES);

                    Field packageInfoFld = pkgParserPkg.getClass().getDeclaredField("mSignatures");
                    Signature[] info = (Signature[]) packageInfoFld.get(pkgParserPkg);
                    Signature apkSignature = info.length > 0 ? info[0] : null;
                    return apkSignature.toByteArray();
                }


            } else {
                pkgParserCt = pkgParserCls.getConstructor(typeArgs);
                pkgParser = pkgParserCt.newInstance(apkPath);
                Method pkgParser_parsePackageMtd = pkgParserCls.getDeclaredMethod("parsePackage", File.class, String.class, DisplayMetrics.class, Integer.TYPE);
                Object pkgParserPkg = pkgParser_parsePackageMtd.invoke(pkgParser, new File(apkPath), apkPath, metrics, PackageManager.GET_SIGNATURES);
                Method pkgParser_collectCertificatesMtd = pkgParserCls.getDeclaredMethod("collectCertificates", pkgParserPkg.getClass(), Integer.TYPE);
                pkgParser_collectCertificatesMtd.invoke(pkgParser, pkgParserPkg, PackageManager.GET_SIGNATURES);
                // 应用程序信息包, 这个公开的, 不过有些函数, 变量没公开
                Field packageInfoFld = pkgParserPkg.getClass().getDeclaredField("mSignatures");
                Signature[] info = (Signature[]) packageInfoFld.get(pkgParserPkg);
                Signature apkSignature = info.length > 0 ? info[0] : null;
                return apkSignature.toByteArray();
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }