Main.java Source code

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Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Copyright (C) 2012 www.amsoft.cn
 * 
 * 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.content.Context;

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

import android.text.TextUtils;

public class Main {

    public static String getSignature(Context context, String pkgname) {
        boolean isEmpty = TextUtils.isEmpty(pkgname);
        if (isEmpty) {
            return null;
        } else {
            try {
                PackageManager manager = context.getPackageManager();
                PackageInfo packageInfo = manager.getPackageInfo(pkgname, PackageManager.GET_SIGNATURES);
                Signature[] signatures = packageInfo.signatures;
                StringBuilder builder = new StringBuilder();
                for (Signature signature : signatures) {
                    builder.append(signature.toCharsString());
                }
                String signature = builder.toString();
                return signature;
            } catch (PackageManager.NameNotFoundException e) {
                e.printStackTrace();
            }
        }
        return null;
    }

    public static PackageInfo getPackageInfo(Context context) {
        PackageInfo info = null;
        try {
            String packageName = context.getPackageName();
            info = context.getPackageManager().getPackageInfo(packageName, 0);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return info;
    }
}