Get device hardware information at runtime

DeviceHelper.java

import android.content.Context;
import android.content.pm.PackageManager;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.Build;
import android.telephony.TelephonyManager;
import android.util.DisplayMetrics;
import android.view.WindowManager;

public class DeviceHelper {

    public static int getNetwork(Context context) {
        ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo info = cm.getActiveNetworkInfo();
        if (info != null && info.isConnected() && info.getType() == ConnectivityManager.TYPE_WIFI) {
            return 1;
        }
        TelephonyManager mTelephonyManager = (TelephonyManager)
                context.getSystemService(Context.TELEPHONY_SERVICE);
        int networkType = mTelephonyManager.getNetworkType();
        switch (networkType) {
            case TelephonyManager.NETWORK_TYPE_GPRS:
            case TelephonyManager.NETWORK_TYPE_EDGE:
            case TelephonyManager.NETWORK_TYPE_CDMA:
            case TelephonyManager.NETWORK_TYPE_1xRTT:
            case TelephonyManager.NETWORK_TYPE_IDEN:
                return 2;
            case TelephonyManager.NETWORK_TYPE_UMTS:
            case TelephonyManager.NETWORK_TYPE_EVDO_0:
            case TelephonyManager.NETWORK_TYPE_EVDO_A:
            case TelephonyManager.NETWORK_TYPE_HSDPA:
            case TelephonyManager.NETWORK_TYPE_HSUPA:
            case TelephonyManager.NETWORK_TYPE_HSPA:
            case TelephonyManager.NETWORK_TYPE_EVDO_B:
            case TelephonyManager.NETWORK_TYPE_EHRPD:
            case TelephonyManager.NETWORK_TYPE_HSPAP:
                return 3;
            case TelephonyManager.NETWORK_TYPE_LTE:
                return 4;
            default:
                return 6;
        }
    }

    public static String getDisplayResolution(Context context) {
        WindowManager wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
        DisplayMetrics displaymetrics = new DisplayMetrics();
        wm.getDefaultDisplay().getMetrics(displaymetrics);
        int height = displaymetrics.heightPixels;
        int width = displaymetrics.widthPixels;
        return height + "×" + width;
    }

    public static String getBrand() {
        return Build.MANUFACTURER + " " + Build.BRAND + " " + Build.MODEL;
    }

    public static String getIMEI(Context context) {
        TelephonyManager telephonyManager = (TelephonyManager)
                context.getSystemService(Context.TELEPHONY_SERVICE);
        return telephonyManager.getDeviceId();
    }

    /**
     * Check if the CPU architecture is X64
     * @return
     */
    public static boolean isX64() {
        String arch = System.getProperty("os.arch").toLowerCase();
        return arch.contains("64");
    }

    /**
     * Check the application is installed or not
     * @param context
     * @param packageName the application package name
     * @return
     */
    public static boolean isPackageInstalled(Context context, String packageName) {
        PackageManager pm = context.getPackageManager();
        try {
            pm.getPackageInfo(packageName, PackageManager.GET_ACTIVITIES);
            return true;
        } catch (PackageManager.NameNotFoundException e) {
            return false;
        }
    }