ReadMe.txt

@@ -13,7 +13,7 @@ NOT WORKING
 - Serial Ports (Wire or Ir)
 
 TODO
-- Change settings per settings
+- Autosave
 - Support 8bits images
 - Put the KML title in the header of the menu in the drawer
 - Bug: No refresh with the clock
@@ -29,3 +29,4 @@ DONE
 - Choose KML/Change KML/NewDocument
 - Load/Save object
 - Permission issues when reopening document after an OS restart
+- Change settings per settings

app/src/main/cpp/win32-layer.c

@@ -65,12 +65,13 @@ BOOL SetCurrentDirectory(LPCTSTR path)
 
 HANDLE CreateFile(LPCTSTR lpFileName, DWORD dwDesiredAccess, DWORD dwShareMode, LPVOID lpSecurityAttributes, DWORD dwCreationDisposition, DWORD dwFlagsAndAttributes, LPVOID hTemplateFile)
 {
+    BOOL forceNormalFile = FALSE;
     if(_tcscmp(lpFileName, szPort2Filename) == 0) {
         // Special case for Port2 filename
-        //TODO
+        forceNormalFile = TRUE;
     }
 
-    if(szCurrentDirectorySet || _tcsncmp(lpFileName, assetsPrefix, assetsPrefixLength / sizeof(TCHAR)) == 0) {
+    if(!forceNormalFile && (szCurrentDirectorySet || _tcsncmp(lpFileName, assetsPrefix, assetsPrefixLength / sizeof(TCHAR)) == 0)) {
         TCHAR szFileName[MAX_PATH];
         AAsset * asset = NULL;
         szFileName[0] = _T('\0');
@@ -190,7 +191,7 @@ DWORD GetFileSize(HANDLE hFile, LPDWORD lpFileSizeHigh) {
         *lpFileSizeHigh = 0;
     if(hFile->handleType == HANDLE_TYPE_FILE) {
         off_t currentPosition = lseek(hFile->fileDescriptor, 0, SEEK_CUR);
-        off_t fileLength = lseek(hFile->fileDescriptor, 0, SEEK_END) + 1;
+        off_t fileLength = lseek(hFile->fileDescriptor, 0, SEEK_END); // + 1;
         lseek(hFile->fileDescriptor, currentPosition, SEEK_SET);
         return fileLength;
     } else if(hFile->handleType == HANDLE_TYPE_FILE_ASSET) {
@@ -211,7 +212,7 @@ HANDLE CreateFileMapping(HANDLE hFile, LPSECURITY_ATTRIBUTES lpFileMappingAttrib
         handle->handleType = HANDLE_TYPE_FILE_MAPPING_ASSET;
         handle->fileAsset = hFile->fileAsset;
     }
-    handle->fileMappingSize = (dwMaximumSizeHigh << 32) & dwMaximumSizeLow;
+    handle->fileMappingSize = (dwMaximumSizeHigh << 32) | dwMaximumSizeLow;
     handle->fileMappingAddress = NULL;
     return handle;
 }

app/src/main/java/com/regis/cosnier/emu48/MainActivity.java

@@ -1,15 +1,22 @@
 package com.regis.cosnier.emu48;
 
 import android.Manifest;
+import android.annotation.TargetApi;
 import android.app.Activity;
+import android.content.Context;
 import android.content.DialogInterface;
 import android.content.Intent;
 import android.content.SharedPreferences;
 import android.content.pm.PackageManager;
 import android.content.res.AssetManager;
+import android.content.res.Configuration;
 import android.net.Uri;
+import android.os.Build;
 import android.os.Bundle;
 import android.os.ParcelFileDescriptor;
+import android.preference.ListPreference;
+import android.preference.Preference;
+import android.preference.PreferenceFragment;
 import android.preference.PreferenceManager;
 import android.util.Log;
 import android.view.MotionEvent;
@@ -45,7 +52,15 @@ import java.util.regex.Pattern;
 public class MainActivity extends AppCompatActivity
         implements NavigationView.OnNavigationItemSelectedListener {
 
-    private static final int INTENT_SETTINGS = 1;
+    public static final int INTENT_GETOPENFILENAME = 1;
+    public static final int INTENT_GETSAVEFILENAME = 2;
+    public static final int INTENT_OBJECT_LOAD = 3;
+    public static final int INTENT_OBJECT_SAVE = 4;
+    public static final int INTENT_SETTINGS = 5;
+    public static final int INTENT_PORT2LOAD = 6;
+
+    public static MainActivity mainActivity;
+
     private static final String TAG = "MainActivity";
     private MainScreenView mainScreenView;
     SharedPreferences sharedPreferences;
@@ -80,6 +95,8 @@ public class MainActivity extends AppCompatActivity
 
 
 
+        mainActivity = this;
+
 
         ViewGroup mainScreenContainer = (ViewGroup)findViewById(R.id.main_screen_container);
         mainScreenView = new MainScreenView(this); //, currentProject);
@@ -101,7 +118,7 @@ public class MainActivity extends AppCompatActivity
         toolbar.setVisibility(View.GONE);
         mainScreenContainer.addView(mainScreenView, 0);
 
-        sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
+        sharedPreferences = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
         updateFromPreferences(null, false);
         sharedPreferenceChangeListener = new SharedPreferences.OnSharedPreferenceChangeListener() {
             @Override
@@ -332,11 +349,6 @@ public class MainActivity extends AppCompatActivity
             }).show();
     }
 
-    public static int INTENT_GETOPENFILENAME = 1;
-    public static int INTENT_GETSAVEFILENAME = 2;
-    public static int INTENT_OBJECT_LOAD = 3;
-    public static int INTENT_OBJECT_SAVE = 4;
-
     private void OnFileOpen() {
         Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
         intent.addCategory(Intent.CATEGORY_OPENABLE);
@@ -379,21 +391,40 @@ public class MainActivity extends AppCompatActivity
         startActivityForResult(new Intent(this, SettingsActivity.class), INTENT_SETTINGS);
     }
 
-    private void OnObjectLoad() {
+    private void openDocument() {
         Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
         intent.addCategory(Intent.CATEGORY_OPENABLE);
         intent.setType("*/*");
         // //Intent.setType("application/*|text/*");
-//        String[] mimeTypes = {
-//            "text/plain",
-//            "application/pdf",
-//            "application/zip"
-//        };
-//        intent.putExtra(Intent.EXTRA_MIME_TYPES, mimeTypes);
+        // String[] mimeTypes = {
+        //     "text/plain",
+        //     "application/pdf",
+        //     "application/zip"
+        // };
+        // intent.putExtra(Intent.EXTRA_MIME_TYPES, mimeTypes);
         intent.putExtra(Intent.EXTRA_TITLE, "emu48-object.hp");
         startActivityForResult(intent, INTENT_OBJECT_LOAD);
+    }
 
-        //NativeLib.onObjectLoad();
+    private void OnObjectLoad() {
+        if(sharedPreferences.getBoolean("settings_objectloadwarning", false)) {
+            DialogInterface.OnClickListener onClickListener = new DialogInterface.OnClickListener() {
+                public void onClick(DialogInterface dialog, int which) {
+                    if (which == DialogInterface.BUTTON_POSITIVE) {
+                        openDocument();
+                    }
+                }
+            };
+            new AlertDialog.Builder(this)
+                    .setMessage("Warning: Trying to load an object while the emulator is busy\n" +
+                            "will certainly result in a memory lost. Before loading an object\n" +
+                            "you should be sure that the calculator is in idle state.\n" +
+                            "Do you want to see this warning next time you try to load an object?")
+                    .setPositiveButton(android.R.string.yes, onClickListener)
+                    .setNegativeButton(android.R.string.no, onClickListener)
+                    .show();
+        } else
+            openDocument();
     }
     private void OnObjectSave() {
         Intent intent = new Intent(Intent.ACTION_CREATE_DOCUMENT);
@@ -401,9 +432,6 @@ public class MainActivity extends AppCompatActivity
         intent.setType("*/*");
         intent.putExtra(Intent.EXTRA_TITLE, "emu48-object.hp");
         startActivityForResult(intent, INTENT_OBJECT_SAVE);
-
-
-        //NativeLib.onObjectSave();
     }
     private void OnViewCopy() {
         NativeLib.onViewCopy();
@@ -498,6 +526,8 @@ public class MainActivity extends AppCompatActivity
 
                 String url = uri.toString();
                 NativeLib.onObjectSave(url);
+            } else if(requestCode == INTENT_SETTINGS) {
+
             }
         }
         super.onActivityResult(requestCode, resultCode, data);
@@ -519,7 +549,7 @@ public class MainActivity extends AppCompatActivity
         if(sharedPreferences.getBoolean("settings_alwaysdisplog", true)) {
             String kmlLog = NativeLib.getKMLLog();
             new AlertDialog.Builder(this)
-                    .setTitle("Pick a calculator")
+                    .setTitle("KML Script Compilation Result")
                     .setMessage(kmlLog)
                     .setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
                         public void onClick(DialogInterface dialog, int which) {
@@ -554,7 +584,6 @@ public class MainActivity extends AppCompatActivity
         if(key == null) {
 //        boolean settingsAutosave = sharedPreferences.getBoolean("settings_autosave", false);
 //        boolean settingsAutosaveonexit = sharedPreferences.getBoolean("settings_autosaveonexit", false);
-//        boolean settingsObjectloadwarning = sharedPreferences.getBoolean("settings_objectloadwarning", false);
             String[] settingKeys = { "settings_realspeed", "settings_grayscale", "settings_alwaysdisplog", "settings_port1", "settings_port2" };
             for (String settingKey : settingKeys) {
                 updateFromPreferences(settingKey, false);

app/src/main/java/com/regis/cosnier/emu48/SettingsActivity.java

@@ -1,10 +1,12 @@
 package com.regis.cosnier.emu48;
 
 import android.annotation.TargetApi;
+import android.app.Activity;
 import android.content.Context;
 import android.content.Intent;
 import android.content.SharedPreferences;
 import android.content.res.Configuration;
+import android.net.Uri;
 import android.os.Build;
 import android.os.Bundle;
 import android.preference.ListPreference;
@@ -12,8 +14,10 @@ import android.preference.Preference;
 import android.preference.PreferenceActivity;
 import android.preference.PreferenceFragment;
 import android.preference.PreferenceManager;
+import android.util.Log;
 import android.view.MenuItem;
 
+import androidx.annotation.Nullable;
 import androidx.appcompat.app.ActionBar;
 import androidx.core.app.NavUtils;
 
@@ -30,6 +34,38 @@ import androidx.core.app.NavUtils;
  */
 public class SettingsActivity extends AppCompatPreferenceActivity {
 
+    private static final String TAG = "SettingsActivity";
+    private static SharedPreferences sharedPreferences;
+
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        sharedPreferences = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
+
+        ActionBar actionBar = getSupportActionBar();
+        if (actionBar != null) {
+            // Show the Up button in the action bar.
+            actionBar.setDisplayHomeAsUpEnabled(true);
+        }
+
+        getFragmentManager().beginTransaction().replace(android.R.id.content, new GeneralPreferenceFragment()).commit();
+
+    }
+
+    @Override
+    public boolean onMenuItemSelected(int featureId, MenuItem item) {
+        int id = item.getItemId();
+        if (id == android.R.id.home) {
+            if (!super.onMenuItemSelected(featureId, item)) {
+                NavUtils.navigateUpFromSameTask(this);
+            }
+            return true;
+        }
+        return super.onMenuItemSelected(featureId, item);
+    }
+
     /**
      * A preference value change listener that updates the preference's summary
      * to reflect its new value.
@@ -69,91 +105,48 @@ public class SettingsActivity extends AppCompatPreferenceActivity {
                 & Configuration.SCREENLAYOUT_SIZE_MASK) >= Configuration.SCREENLAYOUT_SIZE_XLARGE;
     }
 
-    /**
-     * Binds a preference's summary to its value. More specifically, when the
-     * preference's value is changed, its summary (line of text below the
-     * preference title) is updated to reflect the value. The summary is also
-     * immediately updated upon calling this method. The exact display format is
-     * dependent on the type of preference.
-     *
-     * @see #sBindPreferenceSummaryToValueListener
-     */
-    private static void bindPreferenceSummaryToStringValue(Preference preference) {
-        // Set the listener to watch for value changes.
-        preference.setOnPreferenceChangeListener(sBindPreferenceSummaryToValueListener);
-
-        SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(preference.getContext());
-
-        // Trigger the listener immediately with the preference's
-        // current value.
-        sBindPreferenceSummaryToValueListener.onPreferenceChange(preference, sharedPreferences.getString(preference.getKey(), ""));
-    }
-
-    /**
-     * Binds a preference's summary to its value. More specifically, when the
-     * preference's value is changed, its summary (line of text below the
-     * preference title) is updated to reflect the value. The summary is also
-     * immediately updated upon calling this method. The exact display format is
-     * dependent on the type of preference.
-     *
-     * @see #sBindPreferenceSummaryToValueListener
-     */
-    private static void bindPreferenceSummaryToIntValue(Preference preference) {
-        // Set the listener to watch for value changes.
-        preference.setOnPreferenceChangeListener(sBindPreferenceSummaryToValueListener);
-
-        SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(preference.getContext());
-
-        // Trigger the listener immediately with the preference's
-        // current value.
-        sBindPreferenceSummaryToValueListener.onPreferenceChange(preference, sharedPreferences.getInt(preference.getKey(), 0));
-    }
-
-    /**
-     * Binds a preference's summary to its value. More specifically, when the
-     * preference's value is changed, its summary (line of text below the
-     * preference title) is updated to reflect the value. The summary is also
-     * immediately updated upon calling this method. The exact display format is
-     * dependent on the type of preference.
-     *
-     * @see #sBindPreferenceSummaryToValueListener
-     */
-    private static void bindPreferenceSummaryToBoolValue(Preference preference) {
-        // Set the listener to watch for value changes.
-        preference.setOnPreferenceChangeListener(sBindPreferenceSummaryToValueListener);
-
-        SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(preference.getContext());
-
-        // Trigger the listener immediately with the preference's
-        // current value.
-        sBindPreferenceSummaryToValueListener.onPreferenceChange(preference, sharedPreferences.getBoolean(preference.getKey(), false));
-    }
-
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-
-        ActionBar actionBar = getSupportActionBar();
-        if (actionBar != null) {
-            // Show the Up button in the action bar.
-            actionBar.setDisplayHomeAsUpEnabled(true);
-        }
-
-        getFragmentManager().beginTransaction().replace(android.R.id.content, new GeneralPreferenceFragment()).commit();
-
-    }
-
-    @Override
-    public boolean onMenuItemSelected(int featureId, MenuItem item) {
-        int id = item.getItemId();
-        if (id == android.R.id.home) {
-            if (!super.onMenuItemSelected(featureId, item)) {
-                NavUtils.navigateUpFromSameTask(this);
-            }
-            return true;
-        }
-        return super.onMenuItemSelected(featureId, item);
-    }
+//    /**
+//     * Binds a preference's summary to its value. More specifically, when the
+//     * preference's value is changed, its summary (line of text below the
+//     * preference title) is updated to reflect the value. The summary is also
+//     * immediately updated upon calling this method. The exact display format is
+//     * dependent on the type of preference.
+//     *
+//     * @see #sBindPreferenceSummaryToValueListener
+//     */
+//    private static void bindPreferenceSummaryToStringValue(Preference preference) {
+//        preference.setOnPreferenceChangeListener(sBindPreferenceSummaryToValueListener);
+//        sBindPreferenceSummaryToValueListener.onPreferenceChange(preference, sharedPreferences.getString(preference.getKey(), ""));
+//    }
+//
+//    /**
+//     * Binds a preference's summary to its value. More specifically, when the
+//     * preference's value is changed, its summary (line of text below the
+//     * preference title) is updated to reflect the value. The summary is also
+//     * immediately updated upon calling this method. The exact display format is
+//     * dependent on the type of preference.
+//     *
+//     * @see #sBindPreferenceSummaryToValueListener
+//     */
+//    private static void bindPreferenceSummaryToIntValue(Preference preference) {
+//        preference.setOnPreferenceChangeListener(sBindPreferenceSummaryToValueListener);
+//        sBindPreferenceSummaryToValueListener.onPreferenceChange(preference, sharedPreferences.getInt(preference.getKey(), 0));
+//    }
+//
+//    /**
+//     * Binds a preference's summary to its value. More specifically, when the
+//     * preference's value is changed, its summary (line of text below the
+//     * preference title) is updated to reflect the value. The summary is also
+//     * immediately updated upon calling this method. The exact display format is
+//     * dependent on the type of preference.
+//     *
+//     * @see #sBindPreferenceSummaryToValueListener
+//     */
+//    private static void bindPreferenceSummaryToBoolValue(Preference preference) {
+//        // Set the listener to watch for value changes.
+//        preference.setOnPreferenceChangeListener(sBindPreferenceSummaryToValueListener);
+//        sBindPreferenceSummaryToValueListener.onPreferenceChange(preference, sharedPreferences.getBoolean(preference.getKey(), false));
+//    }
 
     /**
      * {@inheritDoc}
@@ -196,33 +189,164 @@ public class SettingsActivity extends AppCompatPreferenceActivity {
             addPreferencesFromResource(R.xml.pref_general);
             setHasOptionsMenu(true);
 
-            // Bind the summaries of EditText/List/Dialog/Ringtone preferences
-            // to their values. When their values change, their summaries are
-            // updated to reflect the new value, per the Android Design
-            // guidelines.
-//            bindPreferenceSummaryToStringValue(findPreference("settings_input"));
-//            bindPreferenceSummaryToIntValue(findPreference("settings_audio_input"));
 
-            bindPreferenceSummaryToBoolValue(findPreference("settings_realspeed"));
-            bindPreferenceSummaryToBoolValue(findPreference("settings_grayscale"));
-//            bindPreferenceSummaryToBoolValue(findPreference("settings_alwaysontop"));
-//            bindPreferenceSummaryToBoolValue(findPreference("settings_actfollowsmouse"));
-//            bindPreferenceSummaryToBoolValue(findPreference("settings_singleinstance"));
-            bindPreferenceSummaryToBoolValue(findPreference("settings_autosave"));
-            bindPreferenceSummaryToBoolValue(findPreference("settings_autosaveonexit"));
-            bindPreferenceSummaryToBoolValue(findPreference("settings_objectloadwarning"));
-            bindPreferenceSummaryToBoolValue(findPreference("settings_alwaysdisplog"));
-            bindPreferenceSummaryToBoolValue(findPreference("settings_port1en"));
-            bindPreferenceSummaryToBoolValue(findPreference("settings_port1wr"));
-            bindPreferenceSummaryToBoolValue(findPreference("settings_port2en"));
-            bindPreferenceSummaryToBoolValue(findPreference("settings_port2wr"));
+            // General settings
 
-            boolean disablePortPreferences = (NativeLib.getIsPortExtensionPossible() == 0);
-            //TODO not working
-            findPreference("settings_port1en").setShouldDisableView(disablePortPreferences);
-            findPreference("settings_port1wr").setShouldDisableView(disablePortPreferences);
-            findPreference("settings_port2en").setShouldDisableView(disablePortPreferences);
-            findPreference("settings_port2wr").setShouldDisableView(disablePortPreferences);
+            Preference preferenceRealspeed = findPreference("settings_realspeed");
+            Preference.OnPreferenceChangeListener onPreferenceChangeListenerRealspeed = new Preference.OnPreferenceChangeListener() {
+                @Override
+                public boolean onPreferenceChange(Preference preference, Object value) {
+                    String stringValue = value.toString();
+                    preference.setSummary(stringValue);
+                    return true;
+                }
+            };
+            preferenceRealspeed.setOnPreferenceChangeListener(onPreferenceChangeListenerRealspeed);
+            onPreferenceChangeListenerRealspeed.onPreferenceChange(preferenceRealspeed, sharedPreferences.getBoolean(preferenceRealspeed.getKey(), false));
+
+            Preference preferenceGrayscale = findPreference("settings_grayscale");
+            Preference.OnPreferenceChangeListener onPreferenceChangeListenerGrayscale = new Preference.OnPreferenceChangeListener() {
+                @Override
+                public boolean onPreferenceChange(Preference preference, Object value) {
+                    String stringValue = value.toString();
+                    preference.setSummary(stringValue);
+                    return true;
+                }
+            };
+            preferenceGrayscale.setOnPreferenceChangeListener(onPreferenceChangeListenerGrayscale);
+            onPreferenceChangeListenerGrayscale.onPreferenceChange(preferenceGrayscale, sharedPreferences.getBoolean(preferenceGrayscale.getKey(), false));
+
+            Preference preferenceAutosave = findPreference("settings_autosave");
+            Preference.OnPreferenceChangeListener onPreferenceChangeListenerAutosave = new Preference.OnPreferenceChangeListener() {
+                @Override
+                public boolean onPreferenceChange(Preference preference, Object value) {
+                    String stringValue = value.toString();
+                    preference.setSummary(stringValue);
+                    return true;
+                }
+            };
+            preferenceAutosave.setOnPreferenceChangeListener(onPreferenceChangeListenerAutosave);
+            onPreferenceChangeListenerAutosave.onPreferenceChange(preferenceAutosave, sharedPreferences.getBoolean(preferenceAutosave.getKey(), false));
+
+            Preference preferenceAutosaveonexit = findPreference("settings_autosaveonexit");
+            Preference.OnPreferenceChangeListener onPreferenceChangeListenerAutosaveonexit = new Preference.OnPreferenceChangeListener() {
+                @Override
+                public boolean onPreferenceChange(Preference preference, Object value) {
+                    String stringValue = value.toString();
+                    preference.setSummary(stringValue);
+                    return true;
+                }
+            };
+            preferenceAutosaveonexit.setOnPreferenceChangeListener(onPreferenceChangeListenerAutosaveonexit);
+            onPreferenceChangeListenerAutosaveonexit.onPreferenceChange(preferenceAutosaveonexit, sharedPreferences.getBoolean(preferenceAutosaveonexit.getKey(), false));
+
+            Preference preferenceObjectloadwarning = findPreference("settings_objectloadwarning");
+            Preference.OnPreferenceChangeListener onPreferenceChangeListenerObjectloadwarning = new Preference.OnPreferenceChangeListener() {
+                @Override
+                public boolean onPreferenceChange(Preference preference, Object value) {
+                    String stringValue = value.toString();
+                    preference.setSummary(stringValue);
+                    return true;
+                }
+            };
+            preferenceObjectloadwarning.setOnPreferenceChangeListener(onPreferenceChangeListenerObjectloadwarning);
+            onPreferenceChangeListenerObjectloadwarning.onPreferenceChange(preferenceObjectloadwarning, sharedPreferences.getBoolean(preferenceObjectloadwarning.getKey(), false));
+
+            Preference preferenceAlwaysdisplog = findPreference("settings_alwaysdisplog");
+            Preference.OnPreferenceChangeListener onPreferenceChangeListenerAlwaysdisplog = new Preference.OnPreferenceChangeListener() {
+                @Override
+                public boolean onPreferenceChange(Preference preference, Object value) {
+                    String stringValue = value.toString();
+                    preference.setSummary(stringValue);
+                    return true;
+                }
+            };
+            preferenceAlwaysdisplog.setOnPreferenceChangeListener(onPreferenceChangeListenerAlwaysdisplog);
+            onPreferenceChangeListenerAlwaysdisplog.onPreferenceChange(preferenceAlwaysdisplog, sharedPreferences.getBoolean(preferenceAlwaysdisplog.getKey(), false));
+
+            // Ports 1 & 2 settings
+
+            final Preference preferencePort1en = findPreference("settings_port1en");
+            final Preference preferencePort1wr = findPreference("settings_port1wr");
+            final Preference preferencePort2en = findPreference("settings_port2en");
+            final Preference preferencePort2wr = findPreference("settings_port2wr");
+            final Preference preferencePort2load = findPreference("settings_port2load");
+
+            final boolean enablePortPreferences = !(NativeLib.getIsPortExtensionPossible() == 0);
+
+            Preference.OnPreferenceChangeListener onPreferenceChangeListenerPort1en = new Preference.OnPreferenceChangeListener() {
+                @Override
+                public boolean onPreferenceChange(Preference preference, Object value) {
+                    Boolean booleanValue = (Boolean)value;
+                    String stringValue = value.toString();
+                    preference.setSummary(stringValue);
+                    preferencePort1en.setEnabled(enablePortPreferences);
+                    preferencePort1wr.setEnabled(enablePortPreferences && booleanValue.booleanValue());
+                    return true;
+                }
+            };
+            preferencePort1en.setOnPreferenceChangeListener(onPreferenceChangeListenerPort1en);
+            onPreferenceChangeListenerPort1en.onPreferenceChange(preferencePort1en, sharedPreferences.getBoolean(preferencePort1en.getKey(), false));
+
+            Preference.OnPreferenceChangeListener onPreferenceChangeListenerPort1wr = new Preference.OnPreferenceChangeListener() {
+                @Override
+                public boolean onPreferenceChange(Preference preference, Object value) {
+                    String stringValue = value.toString();
+                    preference.setSummary(stringValue);
+                    return true;
+                }
+            };
+            preferencePort1wr.setOnPreferenceChangeListener(onPreferenceChangeListenerPort1wr);
+            onPreferenceChangeListenerPort1wr.onPreferenceChange(preferencePort1wr, sharedPreferences.getBoolean(preferencePort1wr.getKey(), false));
+
+            Preference.OnPreferenceChangeListener onPreferenceChangeListenerPort2en = new Preference.OnPreferenceChangeListener() {
+                @Override
+                public boolean onPreferenceChange(Preference preference, Object value) {
+                    Boolean booleanValue = (Boolean)value;
+                    String stringValue = value.toString();
+                    preference.setSummary(stringValue);
+                    preferencePort2en.setEnabled(enablePortPreferences);
+                    preferencePort2wr.setEnabled(enablePortPreferences && booleanValue.booleanValue());
+                    preferencePort2load.setEnabled(enablePortPreferences && booleanValue.booleanValue());
+                    return true;
+                }
+            };
+            preferencePort2en.setOnPreferenceChangeListener(onPreferenceChangeListenerPort2en);
+            onPreferenceChangeListenerPort2en.onPreferenceChange(preferencePort2en, sharedPreferences.getBoolean(preferencePort2en.getKey(), false));
+
+            Preference.OnPreferenceChangeListener onPreferenceChangeListenerPort2wr = new Preference.OnPreferenceChangeListener() {
+                @Override
+                public boolean onPreferenceChange(Preference preference, Object value) {
+                    String stringValue = value.toString();
+                    preference.setSummary(stringValue);
+                    return true;
+                }
+            };
+            preferencePort2wr.setOnPreferenceChangeListener(onPreferenceChangeListenerPort2wr);
+            onPreferenceChangeListenerPort2wr.onPreferenceChange(preferencePort2wr, sharedPreferences.getBoolean(preferencePort2wr.getKey(), false));
+
+            Preference.OnPreferenceChangeListener onPreferenceChangeListenerPort2load = new Preference.OnPreferenceChangeListener() {
+                @Override
+                public boolean onPreferenceChange(Preference preference, Object value) {
+                    String stringValue = value.toString();
+                    preference.setSummary(stringValue);
+                    return true;
+                }
+            };
+            preferencePort2load.setOnPreferenceChangeListener(onPreferenceChangeListenerPort2load);
+            onPreferenceChangeListenerPort2load.onPreferenceChange(preferencePort2load, sharedPreferences.getString(preferencePort2load.getKey(), ""));
+            preferencePort2load.setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() {
+                @Override
+                public boolean onPreferenceClick(Preference preference) {
+                    Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
+                    intent.addCategory(Intent.CATEGORY_OPENABLE);
+                    //intent.setType("YOUR FILETYPE"); //not needed, but maybe usefull
+                    intent.setType("*/*");
+                    intent.putExtra(Intent.EXTRA_TITLE, "shared.bin");
+                    getActivity().startActivityForResult(intent, MainActivity.INTENT_PORT2LOAD);
+                    return true;
+                }
+            });
         }
 
         @Override
@@ -235,4 +359,26 @@ public class SettingsActivity extends AppCompatPreferenceActivity {
             return super.onOptionsItemSelected(item);
         }
     }
+
+    @Override
+    public void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
+        if(resultCode == Activity.RESULT_OK) {
+            if(requestCode == MainActivity.INTENT_PORT2LOAD) {
+                Uri uri = data.getData();
+                //Log.d(TAG, "onActivityResult INTENT_PORT2LOAD " + uri.toString());
+                String url = uri.toString();
+                SharedPreferences.Editor editor = sharedPreferences.edit();
+                editor.putString("settings_port2load", url);
+                editor.commit();
+                makeUriPersistable(data, uri);
+            }
+        }
+        super.onActivityResult(requestCode, resultCode, data);
+    }
+
+    private void makeUriPersistable(Intent data, Uri uri) {
+        //grantUriPermission(getPackageName(), uri, Intent.FLAG_GRANT_READ_URI_PERMISSION);
+        final int takeFlags = data.getFlags() & (Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
+        getContentResolver().takePersistableUriPermission(uri, takeFlags);
+    }
 }

app/src/main/res/xml/pref_general.xml

@@ -1,90 +1,6 @@
 <PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto">
 
-    <!--<ListPreference-->
-        <!--android:key="settings_input"-->
-        <!--android:defaultValue="0"-->
-        <!--android:title="@string/settings_input_title"-->
-        <!--android:entries="@array/settings_input_list_titles"-->
-        <!--android:entryValues="@array/settings_input_list_values"-->
-        <!--android:negativeButtonText="@null"-->
-        <!--android:positiveButtonText="@null"-->
-        <!--/>-->
-
-    <!--<ListPreference-->
-        <!--android:key="settings_audio_engine"-->
-        <!--android:defaultValue="0"-->
-        <!--android:title="@string/settings_audio_engine_title"-->
-        <!--android:entries="@array/settings_audio_engine_list_titles"-->
-        <!--android:entryValues="@array/settings_audio_engine_list_values"-->
-        <!--android:negativeButtonText="@null"-->
-        <!--android:positiveButtonText="@null"-->
-        <!--/>-->
-
-    <!--<com.regis.cosnier.emu48.AudioDeviceSpinnerPreference-->
-        <!--android:key="settings_audio_input"-->
-        <!--android:defaultValue="0"-->
-        <!--android:title="@string/settings_audio_input_title"-->
-        <!--android:dialogMessage="@string/settings_audio_input_title_dialog"-->
-        <!--/>-->
-
-    <!--<ListPreference-->
-        <!--android:key="settings_sample_rate"-->
-        <!--android:defaultValue="48000"-->
-        <!--android:title="@string/settings_sample_rate_title"-->
-        <!--android:entries="@array/settings_sample_rate_list_titles"-->
-        <!--android:entryValues="@array/settings_sample_rate_list_values"-->
-        <!--android:negativeButtonText="@null"-->
-        <!--android:positiveButtonText="@null"-->
-        <!--/>-->
-
-    <!--<ListPreference-->
-        <!--android:key="settings_fft_size"-->
-        <!--android:defaultValue="1024"-->
-        <!--android:title="@string/settings_fft_size_title"-->
-        <!--android:entries="@array/settings_fft_size_list_titles"-->
-        <!--android:entryValues="@array/settings_fft_size_list_values"-->
-        <!--android:negativeButtonText="@null"-->
-        <!--android:positiveButtonText="@null"-->
-        <!--/>-->
-
-    <!--<com.regis.cosnier.emu48.SeekBarPreference-->
-        <!--android:key="settings_volume_scale"-->
-        <!--android:title="@string/settings_volume_scale_title"-->
-        <!--android:dialogMessage="@string/settings_volume_scale_title"-->
-        <!--android:defaultValue="0"-->
-        <!--app:suffix="@string/settings_volume_scale_suffix"-->
-        <!--app:suffixes="@string/settings_volume_scale_suffixes"-->
-        <!--app:min="-1000"-->
-        <!--android:max="1000"-->
-        <!--/>-->
-
-    <!--<com.regis.cosnier.emu48.SeekBarPreference-->
-        <!--android:key="settings_tempo"-->
-        <!--android:title="settings_tempo_title"-->
-        <!--android:dialogMessage="settings_tempo_title"-->
-        <!--android:defaultValue="96"-->
-        <!--app:min="20"-->
-        <!--android:max="200"-->
-        <!--/>-->
-
-    <!--<com.regis.cosnier.emu48.SeekBarPreference-->
-        <!--android:key="settings_intensity_minimum"-->
-        <!--android:title="@string/settings_intensity_minimum_title"-->
-        <!--android:dialogMessage="@string/settings_intensity_minimum_title"-->
-        <!--android:defaultValue="20"-->
-        <!--app:min="1"-->
-        <!--android:max="90"-->
-        <!--/>-->
-
-    <!--<com.regis.cosnier.emu48.SeekBarPreference-->
-        <!--android:key="settings_translation"-->
-        <!--android:title="@string/settings_translation_title"-->
-        <!--android:dialogMessage="@string/settings_translation_title"-->
-        <!--android:defaultValue="0"-->
-        <!--app:min="-60"-->
-        <!--android:max="60"-->
-        <!--/>-->
     <!-- General -->
         <PreferenceCategory app:title="General">
             <SwitchPreference
@@ -138,21 +54,28 @@
             <SwitchPreference
                 android:key="settings_port1en"
                 android:title="Port 1 is Plugged"
-                android:defaultValue="false" />
+                android:defaultValue="false"
+                />
             <SwitchPreference
                 android:key="settings_port1wr"
                 android:title="Port 1 is Writeable"
-                android:defaultValue="false" />
+                android:defaultValue="false"
+                />
             <SwitchPreference
                 android:key="settings_port2en"
                 android:title="Port 2 is Plugged"
-                android:defaultValue="false" />
+                android:defaultValue="false"
+                />
             <SwitchPreference
                 android:key="settings_port2wr"
                 android:title="Port 2 is Writeable"
-                android:defaultValue="false" />
-            <!--"Port 2 File :",IDC_STATIC,14,47,37,8-->
-            <!--"...",IDC_PORT2LOAD,227,45,10,12-->
+                android:defaultValue="false"
+                />
+            <Preference
+                android:key="settings_port2load"
+                android:title="Port 2 File"
+                android:summary=""
+                />
         </PreferenceCategory>
 
     <!-- Peripheral -->