Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Open Source License 

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import android.content.Context;
import android.content.res.AssetManager;
import android.os.Environment;
import android.util.Log;

public class Main {
    public static boolean copyAsset(Context context, AssetManager am, boolean force) {
        File newDir = getSDDir(context);
        File sd = Environment.getExternalStorageDirectory();
        if (sd != null && sd.exists() && sd.isDirectory() && newDir != null && newDir.exists()
                && newDir.isDirectory()) {
            File hpDir = new File(sd, ".hp48");
            if (hpDir.exists()) {
                File allFiles[] = hpDir.listFiles();
                if (allFiles != null && allFiles.length > 0) {
                    Log.i("x48",
                            "Moving x48 files from the old dir " + sd.getAbsolutePath() + " to the proper one :");
                    for (File file : allFiles) {
                        File newFile = new File(newDir, file.getName());
                        Log.i("x48", "Moving " + file.getAbsolutePath() + " to " + newFile);
                        file.renameTo(newFile);
                    }
                }
                Log.i("x48", "Deleting old directory");
                hpDir.delete();
            }
        }
        return copyAsset(am, newDir, force);
    }

    private static boolean copyAsset(AssetManager am, File rep, boolean force) {
        boolean existingInstall = false;
        try {
            String assets[] = am.list("");
            for (int i = 0; i < assets.length; i++) {
                boolean hp48 = assets[i].equals("hp48");
                boolean hp48s = assets[i].equals("hp48s");
                boolean ram = assets[i].equals("ram");
                boolean rom = assets[i].equals("rom");
                boolean rams = assets[i].equals("rams");
                boolean roms = assets[i].equals("roms");
                int required = 0;
                if (ram)
                    required = 131072;
                else if (rams)
                    required = 32768;
                else if (rom)
                    required = 524288;
                else if (roms)
                    required = 262144;
                //boolean SKUNK = assets[i].equals("SKUNK");
                if (hp48 || rom || ram || hp48s || roms || rams) {
                    File fout = new File(rep, assets[i]);
                    existingInstall |= fout.exists();
                    if (!fout.exists() || fout.length() == 0 || (required > 0 && fout.length() != required)
                            || force) {
                        Log.i("x48", "Overwriting " + assets[i]);
                        FileOutputStream out = new FileOutputStream(fout);
                        InputStream in = am.open(assets[i]);
                        byte buffer[] = new byte[8192];
                        int n = -1;
                        while ((n = in.read(buffer)) > -1) {
                            out.write(buffer, 0, n);
                        }
                        out.close();
                        in.close();
                    }
                }
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return existingInstall;
    }

    public static File getSDDir(Context context) {
        if (Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState())) {
            // We can read and write the media
            return context.getExternalFilesDir(null);
        } else {
            // Load another directory, probably local memory
            return context.getFilesDir();
        }
    }
}