Abstract preference queries away into a Preferences class

app/src/main/java/me/impy/aegis/AegisApplication.java

@@ -2,12 +2,10 @@ package me.impy.aegis;
 
 import android.app.Application;
 import android.content.Intent;
-import android.content.SharedPreferences;
 import android.content.pm.ShortcutInfo;
 import android.content.pm.ShortcutManager;
 import android.graphics.drawable.Icon;
 import android.os.Build;
-import android.preference.PreferenceManager;
 import android.support.annotation.RequiresApi;
 
 import java.util.Collections;
@@ -18,6 +16,7 @@ import me.impy.aegis.ui.MainActivity;
 public class AegisApplication extends Application {
     private boolean _running = false;
     private DatabaseManager _manager = new DatabaseManager(this);
+    private Preferences _prefs = new Preferences(this);
 
     @Override
     public void onCreate() {
@@ -32,8 +31,8 @@ public class AegisApplication extends Application {
         return _manager;
     }
 
-    public SharedPreferences getPreferences() {
-        return PreferenceManager.getDefaultSharedPreferences(this);
+    public Preferences getPreferences() {
+        return _prefs;
     }
 
     public boolean isRunning() {

app/src/main/java/me/impy/aegis/Preferences.java

@@ -0,0 +1,37 @@
+package me.impy.aegis;
+
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.preference.PreferenceManager;
+
+public class Preferences {
+    private SharedPreferences _prefs;
+
+    public Preferences(Context context) {
+        _prefs = PreferenceManager.getDefaultSharedPreferences(context);
+    }
+
+    public boolean isDarkModeEnabled() {
+        return _prefs.getBoolean("pref_dark_mode", false);
+    }
+
+    public boolean isSecureScreenEnabled() {
+        return _prefs.getBoolean("pref_secure_screen", true);
+    }
+
+    public boolean isIssuerVisible() {
+        return _prefs.getBoolean("pref_issuer", false);
+    }
+
+    public boolean isIntroDone() {
+        return _prefs.getBoolean("pref_intro", false);
+    }
+
+    public void setIntroDone(boolean done) {
+        _prefs.edit().putBoolean("pref_intro", done).apply();
+    }
+
+    public int getTimeout() {
+        return _prefs.getInt("pref_timeout", -1);
+    }
+}

app/src/main/java/me/impy/aegis/ui/AegisActivity.java

@@ -5,10 +5,10 @@ import android.support.v7.app.AppCompatActivity;
 import android.view.WindowManager;
 
 import me.impy.aegis.AegisApplication;
+import me.impy.aegis.Preferences;
 
 public abstract class AegisActivity extends AppCompatActivity {
     private AegisApplication _app;
-    private boolean _darkMode;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
@@ -16,21 +16,20 @@ public abstract class AegisActivity extends AppCompatActivity {
         _app = (AegisApplication) getApplication();
 
         // set FLAG_SECURE on the window of every AegisActivity
-        if (_app.getPreferences().getBoolean("pref_secure_screen", true)) {
+        if (getPreferences().isSecureScreenEnabled()) {
             getWindow().addFlags(WindowManager.LayoutParams.FLAG_SECURE);
         }
 
         // set the theme
-        _darkMode = _app.getPreferences().getBoolean("pref_dark_mode", false);
-        setPreferredTheme(_darkMode);
+        setPreferredTheme(getPreferences().isDarkModeEnabled());
     }
 
     protected AegisApplication getApp() {
         return _app;
     }
 
-    protected boolean isDark() {
-        return _darkMode;
+    protected Preferences getPreferences() {
+        return _app.getPreferences();
     }
 
     protected abstract void setPreferredTheme(boolean darkMode);

app/src/main/java/me/impy/aegis/ui/IntroActivity.java

@@ -15,9 +15,8 @@ import org.json.JSONObject;
 import javax.crypto.Cipher;
 import javax.crypto.SecretKey;
 
-import me.impy.aegis.AegisApplication;
+import me.impy.aegis.Preferences;
 import me.impy.aegis.R;
-import me.impy.aegis.crypto.CryptResult;
 import me.impy.aegis.crypto.MasterKey;
 import me.impy.aegis.db.DatabaseException;
 import me.impy.aegis.db.DatabaseFileException;
@@ -47,15 +46,15 @@ public class IntroActivity extends AppIntro implements DerivationTask.Callback {
     private PasswordSlot _passwordSlot;
     private Cipher _passwordCipher;
 
-    private AegisApplication _app;
+    private Preferences _prefs;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
-        _app = (AegisApplication) getApplication();
 
         // set FLAG_SECURE on the window of every IntroActivity
-        if (_app.getPreferences().getBoolean("pref_secure_screen", true)) {
+        _prefs = new Preferences(this);
+        if (_prefs.isSecureScreenEnabled()) {
             getWindow().addFlags(WindowManager.LayoutParams.FLAG_SECURE);
         }
 
@@ -196,7 +195,7 @@ public class IntroActivity extends AppIntro implements DerivationTask.Callback {
         setResult(RESULT_OK, result);
 
         // skip the intro from now on
-        _app.getPreferences().edit().putBoolean("pref_intro", true).apply();
+        _prefs.setIntroDone(true);
         finish();
     }
 

app/src/main/java/me/impy/aegis/ui/MainActivity.java

@@ -11,8 +11,6 @@ import android.os.Bundle;
 import android.view.Menu;
 import android.view.MenuItem;
 import android.view.MotionEvent;
-import android.view.View;
-import android.view.ViewGroup;
 import android.widget.LinearLayout;
 import android.widget.Toast;
 
@@ -63,7 +61,7 @@ public class MainActivity extends AegisActivity implements KeyProfileView.Listen
         // set up the key profile view
         _keyProfileView = (KeyProfileView) getSupportFragmentManager().findFragmentById(R.id.key_profiles);
         _keyProfileView.setListener(this);
-        _keyProfileView.setShowIssuer(_app.getPreferences().getBoolean("pref_issuer", false));
+        _keyProfileView.setShowIssuer(getPreferences().isIssuerVisible());
 
         // set up the floating action button
         _fabMenu = findViewById(R.id.fab);
@@ -80,7 +78,7 @@ public class MainActivity extends AegisActivity implements KeyProfileView.Listen
         if (!_app.isRunning() && _db.isLocked()) {
             if (!_db.fileExists()) {
                 // the db doesn't exist, start the intro
-                if (_app.getPreferences().getBoolean("pref_intro", false)) {
+                if (getPreferences().isIntroDone()) {
                     Toast.makeText(this, "Database file not found, starting over...", Toast.LENGTH_SHORT).show();
                 }
                 Intent intro = new Intent(this, IntroActivity.class);
@@ -195,7 +193,7 @@ public class MainActivity extends AegisActivity implements KeyProfileView.Listen
         if (data.getBooleanExtra("needsRecreate", false)) {
             recreate();
         } else if (data.getBooleanExtra("needsRefresh", false)) {
-            boolean showIssuer = _app.getPreferences().getBoolean("pref_issuer", false);
+            boolean showIssuer = getPreferences().isIssuerVisible();
             _keyProfileView.setShowIssuer(showIssuer);
         }
     }