获取APK文件的签名信息,反射实现
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private String showUninstallAPKSignatures(String apkPath) {
String PATH_PackageParser = "php?type=keyword&keyword=android style=text-decoration:underline;font-size:14px;color:#F70968; target=_blank>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;
Constructor pkgParserCt = pkgParserCls.getConstructor(typeArgs);
Object[] valueArgs = new Object[1];
valueArgs[0] = apkPath;
Object pkgParser = pkgParserCt.newInstance(valueArgs);
MediaApplication.logD(DownloadApk.class, "pkgParser:" + pkgParser.toString());
// 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();
// PackageParser.Package mPkgInfo = packageParser.parsePackage(new
// File(apkPath), apkPath,
// metrics, 0);
typeArgs = new Class[4];
typeArgs[0] = File.class;
typeArgs[1] = String.class;
typeArgs[2] = DisplayMetrics.class;
typeArgs[3] = Integer.TYPE;
Method pkgParser_parsePackageMtd = pkgParserCls.getDeclaredMethod("parsePackage",
typeArgs);
valueArgs = new Object[4];
valueArgs[0] = new File(apkPath);
valueArgs[1] = apkPath;
valueArgs[2] = metrics;
valueArgs[3] = PackageManager.GET_SIGNATURES;
Object pkgParserPkg = pkgParser_parsePackageMtd.invoke(pkgParser, valueArgs);
typeArgs = new Class[2];
typeArgs[0] = pkgParserPkg.getClass();
typeArgs[1] = Integer.TYPE;
Method pkgParser_collectCertificatesMtd = pkgParserCls.getDeclaredMethod("collectCertificates",
typeArgs);
valueArgs = new Object[2];
valueArgs[0] = pkgParserPkg;
valueArgs[1] = PackageManager.GET_SIGNATURES;
pkgParser_collectCertificatesMtd.invoke(pkgParser, valueArgs);
// 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);
MediaApplication.logD(DownloadApk.class, "size:"+info.length);
MediaApplication.logD(DownloadApk.class, info[0].toCharsString());
return info[0].toCharsString();
} catch (Exception e) {
e.printStackTrace();
}
return null;
} 获取程序自身的签名:private String getSign(Context context) {
PackageManager pm = context.getPackageManager();
List<PackageInfo> apps = pm.getInstalledPackages(PackageManager.GET_SIGNATURES);
Iterator<PackageInfo> iter = apps.iterator();
while(iter.hasNext()) {
PackageInfo packageinfo = iter.next();
String packageName = packageinfo.packageName;
if (packageName.equals(instance.getPackageName())) {
MediaApplication.logD(DownloadApk.class, packageinfo.signatures[0].toCharsString());
return packageinfo.signatures[0].toCharsString();
}
}
return null;
} 对比2个方法的返回值来判断APK升级包的签名是否一致,一致就提示可以安装。
String PATH_PackageParser = "php?type=keyword&keyword=android style=text-decoration:underline;font-size:14px;color:#F70968; target=_blank>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;
Constructor pkgParserCt = pkgParserCls.getConstructor(typeArgs);
Object[] valueArgs = new Object[1];
valueArgs[0] = apkPath;
Object pkgParser = pkgParserCt.newInstance(valueArgs);
MediaApplication.logD(DownloadApk.class, "pkgParser:" + pkgParser.toString());
// 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();
// PackageParser.Package mPkgInfo = packageParser.parsePackage(new
// File(apkPath), apkPath,
// metrics, 0);
typeArgs = new Class[4];
typeArgs[0] = File.class;
typeArgs[1] = String.class;
typeArgs[2] = DisplayMetrics.class;
typeArgs[3] = Integer.TYPE;
Method pkgParser_parsePackageMtd = pkgParserCls.getDeclaredMethod("parsePackage",
typeArgs);
valueArgs = new Object[4];
valueArgs[0] = new File(apkPath);
valueArgs[1] = apkPath;
valueArgs[2] = metrics;
valueArgs[3] = PackageManager.GET_SIGNATURES;
Object pkgParserPkg = pkgParser_parsePackageMtd.invoke(pkgParser, valueArgs);
typeArgs = new Class[2];
typeArgs[0] = pkgParserPkg.getClass();
typeArgs[1] = Integer.TYPE;
Method pkgParser_collectCertificatesMtd = pkgParserCls.getDeclaredMethod("collectCertificates",
typeArgs);
valueArgs = new Object[2];
valueArgs[0] = pkgParserPkg;
valueArgs[1] = PackageManager.GET_SIGNATURES;
pkgParser_collectCertificatesMtd.invoke(pkgParser, valueArgs);
// 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);
MediaApplication.logD(DownloadApk.class, "size:"+info.length);
MediaApplication.logD(DownloadApk.class, info[0].toCharsString());
return info[0].toCharsString();
} catch (Exception e) {
e.printStackTrace();
}
return null;
} 获取程序自身的签名:private String getSign(Context context) {
PackageManager pm = context.getPackageManager();
List<PackageInfo> apps = pm.getInstalledPackages(PackageManager.GET_SIGNATURES);
Iterator<PackageInfo> iter = apps.iterator();
while(iter.hasNext()) {
PackageInfo packageinfo = iter.next();
String packageName = packageinfo.packageName;
if (packageName.equals(instance.getPackageName())) {
MediaApplication.logD(DownloadApk.class, packageinfo.signatures[0].toCharsString());
return packageinfo.signatures[0].toCharsString();
}
}
return null;
} 对比2个方法的返回值来判断APK升级包的签名是否一致,一致就提示可以安装。
- 获取APK文件的签名信息,反射实现
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