Android应用保护

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   if ((getApplicationInfo().flags &=                 ApplicationInfo.FLAG_DEBUGGABLE) != 0){            Log.e("com.droider.antidebug", "程序被修改为可调试状态");            android.os.Process.killProcess(android.os.Process.myPid());        }          if (android.os.Debug.isDebuggerConnected()) {   //检测调试器            Log.e("com.droider.antidebug", "检测到测试器");            android.os.Process.killProcess(android.os.Process.myPid());        }

    boolean isRunningInEmualtor() {        boolean qemuKernel = false;        Process process = null;        DataOutputStream os = null;        try{              process = Runtime.getRuntime().exec("getprop ro.kernel.qemu");              os = new DataOutputStream(process.getOutputStream());            BufferedReader in = new BufferedReader(new InputStreamReader(process.getInputStream(),"GBK"));            os.writeBytes("exit\n");              os.flush();            process.waitFor();            qemuKernel = (Integer.valueOf(in.readLine()) == 1);            Log.d("com.droider.checkqemu", "检测到模拟器:" + qemuKernel);                     } catch (Exception e){              qemuKernel = false;            Log.d("com.droider.checkqemu", "run failed" + e.getMessage());         } finally {            try{                  if (os != null) {                      os.close();                  }                  process.destroy();              } catch (Exception e) {            }              Log.d("com.droider.checkqemu", "run finally");         }        return qemuKernel;    }    public static String getProp(Context context, String property) {        try {            ClassLoader cl = context.getClassLoader();            Class SystemProperties = cl.loadClass("android.os.SystemProperties");            Method method = SystemProperties.getMethod("get", String.class);            Object[] params = new Object[1];            params[0] = new String(property);            return (String)method.invoke(SystemProperties, params);        } catch (Exception e) {            return null;        }    }

    public int getSignature(String packageName) {              PackageManager pm = this.getPackageManager();        PackageInfo pi = null;        int sig = 0;        try {            pi = pm.getPackageInfo(packageName, PackageManager.GET_SIGNATURES);            Signature[] s = pi.signatures;            sig = s[0].hashCode();          } catch (Exception e1) {            sig = 0;            e1.printStackTrace();        }        return sig;    }

   private boolean checkCRC() {        boolean beModified = false;        long crc = Long.parseLong(getString(R.string.crc));        ZipFile zf;        try {            zf = new ZipFile(getApplicationContext().getPackageCodePath());            ZipEntry ze = zf.getEntry("classes.dex");            Log.d("com.droider.checkcrc", String.valueOf(ze.getCrc()));            if (ze.getCrc() == crc) {                beModified = true;            }         } catch (IOException e) {            e.printStackTrace();            beModified = false;        }        return beModified;    }

转自:

http://blog.csdn.net/allenwells/article/details/47019605

http://blog.csdn.net/allenwells/article/details/47019615

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