package com.lcjian.library.util;

import android.content.Context;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager;
import android.os.Bundle;
import android.text.TextUtils;
import android.util.Log;

import java.util.Iterator;

/**
 * Created by weikou2015 on 2018/7/26.
 */

public class ManifestDataUtil {
    private static final String TAG ="ManifestDataUtil" ;

    /**
     * 获取application中指定的meta-data。本例中，调用方法时key就是UMENG_CHANNEL
     *
     * @return 如果没有获取成功(没有对应值 ， 或者异常)，则返回值为空
     */
    public static String getAppMetaData(Context ctx, String key) {
        if (ctx == null || TextUtils.isEmpty(key)) {
            return null;
        }
        String resultData = null;
        try {
            PackageManager packageManager = ctx.getPackageManager();
            if (packageManager != null) {
                ApplicationInfo applicationInfo = packageManager.getApplicationInfo(ctx.getPackageName(), PackageManager.GET_META_DATA);
                if (applicationInfo != null) {
                    if (applicationInfo.metaData != null) {
                        resultData = applicationInfo.metaData.getString(key);
                    }
                }
            }
        } catch (PackageManager.NameNotFoundException e) {
            e.printStackTrace();
        }

        return resultData;
    }
}