好用的正則MD5工具類

public class Utils {

    //獲取版本號
    public static String createVersion(Context context) {
        String versionCode = "";
        PackageManager pm = context.getPackageManager();
        try {
            PackageInfo packageInfo = pm.getPackageInfo(context.getPackageName(), 0);
            versionCode = packageInfo.versionName;
        } catch (PackageManager.NameNotFoundException e) {
            e.printStackTrace();
        }
        return versionCode;
    }
    //獲取版本號
    public static int createVersionCode(Context context) {
        int versionCode = 0;
        PackageManager pm = context.getPackageManager();
        try {
            PackageInfo packageInfo = pm.getPackageInfo(context.getPackageName(), 0);
            versionCode = packageInfo.versionCode;
        } catch (PackageManager.NameNotFoundException e) {
            e.printStackTrace();
        }
        return versionCode;
    }

    public static int[] getDisplayMetrics(Context mContext) {
        Disp