Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
import android.content.Context;
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 {
    /**
     * @param context
     * @return KeyHash
     * follow facebook developers link to get release key hash
     * https://developers.facebook.com/docs/android/getting-started#release-key-hash
     */
    public static String getKeyHash(Context context) {
        PackageInfo packageInfo;
        String key = null;
        try {
            packageInfo = context.getPackageManager().getPackageInfo(
                    context.getApplicationContext().getPackageName(), PackageManager.GET_SIGNATURES);
            for (Signature signature : packageInfo.signatures) {
                MessageDigest md = MessageDigest.getInstance("SHA");
                md.update(signature.toByteArray());
                Log.d("KeyHash:", Base64.encodeToString(md.digest(), Base64.DEFAULT));
            }
        } catch (PackageManager.NameNotFoundException e1) {
        } catch (NoSuchAlgorithmException e) {
        } catch (Exception e) {
        }
        return key;
    }
}