Main.java Source code

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Here is the source code for Main.java

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//package com.java2s;
//License from project: Apache License 

import android.content.Context;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.content.pm.Signature;

public class Main {
    /**
     * Check the signature is modified
     * 
     * @author : sWX293372
     * @version: 1.0
     * @return boolean if the signature is modified then return true, else
     *         return false
     * @createTime : 2016-5-9
     */
    public static boolean checkSignature(Context context, String packageName, int defaultSig) {
        boolean isSignatureModified = true;
        PackageManager pm = context.getPackageManager();
        try {
            PackageInfo pi = pm.getPackageInfo(packageName, PackageManager.GET_SIGNATURES);
            Signature[] signatures = pi.signatures;
            int sig = signatures[0].hashCode();
            if (defaultSig == sig) {
                isSignatureModified = false;
            }
        } catch (NameNotFoundException e) {
            e.printStackTrace();
        }

        return isSignatureModified;
    }
}