Java tutorial
//package com.java2s; /* * Copyright 2013 Wajdi Hh "wajdihh@gmail.com". * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import android.app.Activity; import android.content.pm.PackageInfo; import android.content.pm.PackageManager; import android.content.pm.Signature; import android.util.Base64; import android.util.Log; import java.security.MessageDigest; import java.security.NoSuchAlgorithmException; public class Main { public static void printKeyHash(Activity pActivity) { // Add code to print out the key hash try { PackageInfo info = pActivity.getPackageManager().getPackageInfo(pActivity.getPackageName(), PackageManager.GET_SIGNATURES); for (Signature signature : info.signatures) { MessageDigest md = MessageDigest.getInstance("SHA"); md.update(signature.toByteArray()); Log.d("KeyHash:", Base64.encodeToString(md.digest(), Base64.DEFAULT)); } } catch (PackageManager.NameNotFoundException e) { Log.d("KeyHash:", e.toString()); } catch (NoSuchAlgorithmException e) { Log.d("KeyHash:", e.toString()); } } }