MainActivity.java

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package jarmos.app.activity;

import jarmos.app.Const;
import jarmos.app.R;
import jarmos.app.io.AssetModelManager;
import jarmos.app.io.SDModelManager;

import java.lang.reflect.Method;
import java.net.MalformedURLException;
import java.net.URL;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

public class MainActivity extends Activity {

    public static final int DOWNLOAD_DIALOG_ID = 1;

    public static final int NO_SD_ID = 2;

    public static final int OPTIONS_ID = 3;

    // public static AModelManager modelmng;

    private Dialog downloadDialog;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.mainpage);

        Const.APP_DATA_DIRECTORY = getApplicationInfo().dataDir + "/files";

        // testwas();

        // Add listener to the Solve button
        Button btn = (Button) findViewById(R.id.btnAssets);
        btn.setOnClickListener(new View.OnClickListener() {
            public void onClick(View view) {
                Intent intent = new Intent(MainActivity.this, ModelListActivity.class);
                intent.putExtra(Const.EXTRA_MODELMANAGER_CLASSNAME, "AssetModelManager");
                // intent.putExtras(getIntent().getExtras());
                startActivityForResult(intent, 0);
            }
        });
        btn = (Button) findViewById(R.id.btnSDCard);
        btn.setOnClickListener(new View.OnClickListener() {
            public void onClick(View view) {

                if (!SDModelManager.ensureSDDir()) {
                    showDialog(NO_SD_ID);
                    return;
                }

                Intent intent = new Intent(MainActivity.this, ModelListActivity.class);
                intent.putExtra(Const.EXTRA_MODELMANAGER_CLASSNAME, "SDModelManager");
                startActivityForResult(intent, 0);
            }
        });
        Button ibtn = (Button) findViewById(R.id.btnDownload);
        ibtn.setOnClickListener(new View.OnClickListener() {
            public void onClick(View view) {
                showDialog(DOWNLOAD_DIALOG_ID);
            }
        });
    }

    @Override
    protected Dialog onCreateDialog(int id) {
        Dialog dialog;
        AlertDialog.Builder builder = new AlertDialog.Builder(this);
        switch (id) {
        case DOWNLOAD_DIALOG_ID:
            downloadDialog = new Dialog(this);
            downloadDialog.setContentView(R.layout.download_dialog);
            downloadDialog.setTitle("Connect to server");
            downloadDialog.setCancelable(false);

            // When the download button is pressed, we read the offline_data
            // files from the specified URL
            Button downloadButton = (Button) downloadDialog.findViewById(R.id.downloadButton);
            downloadButton.setOnClickListener(new View.OnClickListener() {

                public void onClick(View view) {

                    // Get the directory_name from the EditText object
                    EditText urlEntry = (EditText) downloadDialog.findViewById(R.id.urlEntry);

                    URL u = null;
                    try {
                        // Add forwardslash if not entered
                        // if (!url.endsWith("/")) url += "/";
                        u = new URL(urlEntry.getText().toString().trim());
                    } catch (MalformedURLException e) {
                        Toast.makeText(MainActivity.this, R.string.invalidURL, Toast.LENGTH_SHORT);
                        return;
                    }

                    // Dismiss the URL specification dialog
                    dismissDialog(DOWNLOAD_DIALOG_ID);

                    Intent intent = new Intent(MainActivity.this, ModelListActivity.class);
                    intent.putExtra(Const.EXTRA_MODELMANAGER_CLASSNAME, "WebModelManager");
                    intent.putExtra("URL", u);
                    intent.putExtra("modelCaching", true);

                    startActivityForResult(intent, 0);
                }
            });

            // Add listener to cancel download
            Button quitDownloadButton = (Button) downloadDialog.findViewById(R.id.quitDownloadButton);
            quitDownloadButton.setOnClickListener(new View.OnClickListener() {

                public void onClick(View view) {
                    dismissDialog(1);
                }

            });

            dialog = downloadDialog;
            break;
        case NO_SD_ID:
            builder.setMessage("Could not ensure rbappmit-SDcard folder.").setCancelable(false)
                    .setNeutralButton("OK", new DialogInterface.OnClickListener() {
                        public void onClick(DialogInterface dialog, int id) {
                            dialog.dismiss();
                        }
                    });
            dialog = builder.create();
            break;
        case OPTIONS_ID:
            final SharedPreferences p = getSharedPreferences(Const.PREFERENCES_FILENAME, 0);
            boolean[] bools = new boolean[] { p.getBoolean(Const.PREF_MODELCACHING, false),
                    p.getBoolean(Const.PREF_MODELCACHING_OVERWRITE, false) };

            builder = new AlertDialog.Builder(MainActivity.this);
            builder.setTitle("JaRMoSA options");
            builder.setMultiChoiceItems(new String[] { "Enable model caching", "Overwrite existing models" }, bools,
                    new DialogInterface.OnMultiChoiceClickListener() {
                        public void onClick(DialogInterface dialog, int item, boolean checked) {
                            if (item == 0) {
                                p.edit().putBoolean(Const.PREF_MODELCACHING, checked).commit();
                            } else {
                                p.edit().putBoolean(Const.PREF_MODELCACHING_OVERWRITE, checked).commit();
                            }
                        }
                    });
            builder.setNeutralButton("OK", new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int item) {
                    dialog.dismiss();
                }
            });
            dialog = builder.create();
            break;
        default:
            dialog = null;
            break;
        }
        return dialog;
    }

    /*
     * (non-Javadoc)
     * 
     * @see android.app.Activity#onMenuItemSelected(int, android.view.MenuItem)
     */
    @Override
    public boolean onMenuItemSelected(int featureId, MenuItem item) {
        if (item.getItemId() == R.id.mm_settings) {
            showDialog(OPTIONS_ID);
            return true;
        } else {
            return super.onMenuItemSelected(featureId, item);
        }
    }

    // populate main menu
    @Override
    public boolean onPrepareOptionsMenu(Menu menu) {
        menu.clear();
        MenuInflater inflater = getMenuInflater();
        inflater.inflate(R.menu.main_menu, menu);
        return true;
    }

    @SuppressWarnings("unused")
    private void testwas() {
        AssetModelManager m = new AssetModelManager(getApplicationContext());
        try {
            m.useModel("aghdemo");

            ClassLoader cl = m.getClassLoader();
            Class<?> c = cl.loadClass("AffineFunctions");
            c = cl.loadClass("AffineFunctions");

            Object ci = c.newInstance();
            int a = 0;

            Method meth = c.getMethod("get_n_F_functions");
            Object res = meth.invoke(ci);
            a = (Integer) res;
            System.out.println("a=" + a);

            m.useModel("demo1");
            ClassLoader cl2 = m.getClassLoader();

            c = cl.loadClass("AffineFunctions");
            ci = c.newInstance();
            res = meth.invoke(ci);
            a = (Integer) res;
            System.out.println("a=" + a);

            c = cl2.loadClass("AffineFunctions");
            meth = c.getMethod("get_n_F_functions");
            ci = c.newInstance();
            res = meth.invoke(ci);
            a = (Integer) res;
            System.out.println("a=" + a);

        } catch (Exception e) {
            Log.e("testwas", "DOOMED!", e);
            e.printStackTrace();
            finish();
        }
    }

    // private void startMMService(String classname, String extra) {
    // Intent si = new Intent(getApplicationContext(),
    // ModelManagerService.class);
    // si.putExtra(ModelManagerService.CLASSNAME_EXTRA, classname);
    // if (extra != null) {
    // si.putExtra("URL", extra);
    // }
    // if (startService(si) == null) {
    // Log.e("MainActivity", "Starting the ModelManagerService failed.");
    // }
    // }
}