Android编程之防止反编译的实现方法

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();   // getprop ro.kernel.qemu == 1 在模拟器   // getprop ro.product.model == "sdk" 在模拟器   // getprop ro.build.tags == "test-keys" 在模拟器   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 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 String getAppInfo() {   try {    String pkName = this.getPackageName();    String versionName = this.getPackageManager().getPackageInfo(      pkName, 0).versionName;    int versionCode = this.getPackageManager()      .getPackageInfo(pkName, 0).versionCode;    return pkName + " " + versionName + " " + versionCode;   } catch (Exception e) {   }   return null;}

private static final char[] wJ = "0123456789abcdef".toCharArray();public static String imsi = "204046330839890";public static String p = "0";public static String keyword = "电话";public static String tranlateKeyword = "%E7%94%B5%E8%AF%9D";