Fix a crash when opening a drawer while restarting. https://redmine.stoutner.com...

[PrivacyBrowserAndroid.git] / app / src / main / java / com / stoutner / privacybrowser / activities / RequestsActivity.java

diff --git a/app/src/main/java/com/stoutner/privacybrowser/activities/RequestsActivity.java b/app/src/main/java/com/stoutner/privacybrowser/activities/RequestsActivity.java
index 2adeb318a54a7b8410d40a17aa24395969f9dcfe..e592ffffe85820abb25abeb5e9ec7feb9b6c1bb8 100644 (file)
--- a/app/src/main/java/com/stoutner/privacybrowser/activities/RequestsActivity.java
+++ b/app/src/main/java/com/stoutner/privacybrowser/activities/RequestsActivity.java
@@ -1,5 +1,5 @@
 /*
- * Copyright © 2018-2020 Soren Stoutner <soren@stoutner.com>.
+ * Copyright © 2018-2021 Soren Stoutner <soren@stoutner.com>.
  *
  * This file is part of Privacy Browser <https://www.stoutner.com/privacy-browser>.
  *
@@ -35,9 +35,10 @@ import android.widget.ResourceCursorAdapter;
 import android.widget.Spinner;
 import android.widget.TextView;
 
+import androidx.annotation.NonNull;
 import androidx.appcompat.app.ActionBar;
 import androidx.appcompat.app.AppCompatActivity;
-import androidx.appcompat.widget.Toolbar;  // The AndroidX toolbar must be used until the minimum API >= 21.
+import androidx.appcompat.widget.Toolbar;
 import androidx.fragment.app.DialogFragment;
 
 import com.stoutner.privacybrowser.R;
@@ -52,7 +53,10 @@ public class RequestsActivity extends AppCompatActivity implements ViewRequestDi
     // The resource requests are populated by `MainWebViewActivity` before `RequestsActivity` is launched.
     public static List<String[]> resourceRequests;
 
-    // The list view is used in `onCreate()` and `launchViewRequestDialog()`.
+    // Initialize the class constants.
+    private final String LISTVIEW_POSITION = "listview_position";
+
+    // Define the class views.
     private ListView requestsListView;
 
     @Override
@@ -60,8 +64,9 @@ public class RequestsActivity extends AppCompatActivity implements ViewRequestDi
         // Get a handle for the shared preferences.
         SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
 
-        // Get the screenshot preference.
-        boolean allowScreenshots = sharedPreferences.getBoolean("allow_screenshots", false);
+        // Get the preferences.
+        boolean allowScreenshots = sharedPreferences.getBoolean(getString(R.string.allow_screenshots_key), false);
+        boolean bottomAppBar = sharedPreferences.getBoolean(getString(R.string.bottom_app_bar_key), false);
 
         // Disable screenshots if not allowed.
         if (!allowScreenshots) {
@@ -81,7 +86,11 @@ public class RequestsActivity extends AppCompatActivity implements ViewRequestDi
         boolean blockAllThirdPartyRequests = intent.getBooleanExtra("block_all_third_party_requests", false);
 
         // Set the content view.
-        setContentView(R.layout.requests_coordinatorlayout);
+        if (bottomAppBar) {
+            setContentView(R.layout.requests_bottom_appbar);
+        } else {
+            setContentView(R.layout.requests_top_appbar);
+        }
 
         // Use the AndroidX toolbar until the minimum API is >= 21.
         Toolbar toolbar = findViewById(R.id.requests_toolbar);
@@ -171,6 +180,9 @@ public class RequestsActivity extends AppCompatActivity implements ViewRequestDi
         Spinner appBarSpinner = findViewById(R.id.spinner);
         appBarSpinner.setAdapter(spinnerCursorAdapter);
 
+        // Get a handle for the context.
+        Context context = this;
+
         // Handle clicks on the spinner dropdown.
         appBarSpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
             @Override
@@ -178,7 +190,7 @@ public class RequestsActivity extends AppCompatActivity implements ViewRequestDi
                 switch ((int) id) {
                     case 0:  // All requests.
                         // Get an adapter for all the request.
-                        ArrayAdapter<String[]> allResourceRequestsArrayAdapter = new RequestsArrayAdapter(getApplicationContext(), allResourceRequests);
+                        ArrayAdapter<String[]> allResourceRequestsArrayAdapter = new RequestsArrayAdapter(context, allResourceRequests);
 
                         // Display the adapter in the list view.
                         requestsListView.setAdapter(allResourceRequestsArrayAdapter);
@@ -186,7 +198,7 @@ public class RequestsActivity extends AppCompatActivity implements ViewRequestDi
 
                     case 1:  // Default requests.
                         // Get an adapter for the default requests.
-                        ArrayAdapter<String[]> defaultResourceRequestsArrayAdapter = new RequestsArrayAdapter(getApplicationContext(), defaultResourceRequests);
+                        ArrayAdapter<String[]> defaultResourceRequestsArrayAdapter = new RequestsArrayAdapter(context, defaultResourceRequests);
 
                         // Display the adapter in the list view.
                         requestsListView.setAdapter(defaultResourceRequestsArrayAdapter);
@@ -194,7 +206,7 @@ public class RequestsActivity extends AppCompatActivity implements ViewRequestDi
 
                     case 2:  // Allowed requests.
                         // Get an adapter for the allowed requests.
-                        ArrayAdapter<String[]> allowedResourceRequestsArrayAdapter = new RequestsArrayAdapter(getApplicationContext(), allowedResourceRequests);
+                        ArrayAdapter<String[]> allowedResourceRequestsArrayAdapter = new RequestsArrayAdapter(context, allowedResourceRequests);
 
                         // Display the adapter in the list view.
                         requestsListView.setAdapter(allowedResourceRequestsArrayAdapter);
@@ -202,7 +214,7 @@ public class RequestsActivity extends AppCompatActivity implements ViewRequestDi
 
                     case 3:  // Third-party requests.
                         // Get an adapter for the third-party requests.
-                        ArrayAdapter<String[]> thirdPartyResourceRequestsArrayAdapter = new RequestsArrayAdapter(getApplicationContext(), thirdPartyResourceRequests);
+                        ArrayAdapter<String[]> thirdPartyResourceRequestsArrayAdapter = new RequestsArrayAdapter(context, thirdPartyResourceRequests);
 
                         //Display the adapter in the list view.
                         requestsListView.setAdapter(thirdPartyResourceRequestsArrayAdapter);
@@ -210,7 +222,7 @@ public class RequestsActivity extends AppCompatActivity implements ViewRequestDi
 
                     case 4:  // Blocked requests.
                         // Get an adapter fo the blocked requests.
-                        ArrayAdapter<String[]> blockedResourceRequestsArrayAdapter = new RequestsArrayAdapter(getApplicationContext(), blockedResourceRequests);
+                        ArrayAdapter<String[]> blockedResourceRequestsArrayAdapter = new RequestsArrayAdapter(context, blockedResourceRequests);
 
                         // Display the adapter in the list view.
                         requestsListView.setAdapter(blockedResourceRequestsArrayAdapter);
@@ -225,7 +237,7 @@ public class RequestsActivity extends AppCompatActivity implements ViewRequestDi
         });
 
         // Create an array adapter with the list of the resource requests.
-        ArrayAdapter<String[]> resourceRequestsArrayAdapter = new RequestsArrayAdapter(getApplicationContext(), allResourceRequests);
+        ArrayAdapter<String[]> resourceRequestsArrayAdapter = new RequestsArrayAdapter(context, allResourceRequests);
 
         // Populate the list view with the resource requests adapter.
         requestsListView.setAdapter(resourceRequestsArrayAdapter);
@@ -235,18 +247,36 @@ public class RequestsActivity extends AppCompatActivity implements ViewRequestDi
             // Display the view request dialog.  The list view is 0 based, so the position must be incremented by 1.
             launchViewRequestDialog(position + 1);
         });
+
+        // Check to see if the activity has been restarted.
+        if (savedInstanceState != null) {
+            // Scroll to the saved position.
+            requestsListView.post(() -> requestsListView.setSelection(savedInstanceState.getInt(LISTVIEW_POSITION)));
+        }
+    }
+
+    @Override
+    public void onSaveInstanceState(@NonNull Bundle savedInstanceState) {
+        // Run the default commands.
+        super.onSaveInstanceState(savedInstanceState);
+
+        // Get the listview position.
+        int listViewPosition = requestsListView.getFirstVisiblePosition();
+
+        // Store the listview position in the bundle.
+        savedInstanceState.putInt(LISTVIEW_POSITION, listViewPosition);
     }
 
     @Override
-    public void onPrevious(int id) {
+    public void onPrevious(int currentId) {
         // Show the previous dialog.
-        launchViewRequestDialog(id -1);
+        launchViewRequestDialog(currentId -1);
     }
 
     @Override
-    public void onNext(int id) {
+    public void onNext(int currentId) {
         // Show the next dialog.
-        launchViewRequestDialog(id + 1);
+        launchViewRequestDialog(currentId + 1);
     }
 
     private void launchViewRequestDialog(int id) {