Use ContextCompat.getColor().

app/src/full/java/org/fdroid/fdroid/nearby/SelectAppsView.java

@@ -221,7 +221,7 @@ public class SelectAppsView extends SwapView implements LoaderManager.LoaderCall
                 int colour;
                 if (checked) {
                     resource = R.drawable.ic_check_circle;
-                    colour = getResources().getColor(R.color.swap_bright_blue);
+                    colour = ContextCompat.getColor(getContext(), R.color.swap_bright_blue);
                 } else {
                     resource = R.drawable.ic_add_circle_outline;
                     colour = 0xFFD0D0D4;

app/src/full/java/org/fdroid/fdroid/nearby/SwapView.java

@@ -3,10 +3,13 @@ package org.fdroid.fdroid.nearby;
 import android.annotation.TargetApi;
 import android.content.Context;
 import android.content.res.TypedArray;
-import androidx.annotation.ColorInt;
-import androidx.annotation.LayoutRes;
 import android.util.AttributeSet;
 import android.widget.RelativeLayout;
+
+import androidx.annotation.ColorInt;
+import androidx.annotation.LayoutRes;
+import androidx.core.content.ContextCompat;
+
 import org.fdroid.fdroid.R;
 
 /**
@@ -42,7 +45,7 @@ public class SwapView extends RelativeLayout {
         final TypedArray a = context.obtainStyledAttributes(
                 attrs, R.styleable.SwapView, 0, 0);
         toolbarColor = a.getColor(R.styleable.SwapView_toolbarColor,
-                getResources().getColor(R.color.swap_blue));
+                ContextCompat.getColor(context, R.color.swap_blue));
         toolbarTitle = a.getString(R.styleable.SwapView_toolbarTitle);
         a.recycle();
     }
@@ -53,7 +56,7 @@ public class SwapView extends RelativeLayout {
         final TypedArray a = context.obtainStyledAttributes(
                 attrs, R.styleable.SwapView, 0, 0);
         toolbarColor = a.getColor(R.styleable.SwapView_toolbarColor,
-                getResources().getColor(R.color.swap_blue));
+                ContextCompat.getColor(context, R.color.swap_blue));
         toolbarTitle = a.getString(R.styleable.SwapView_toolbarTitle);
         a.recycle();
     }

app/src/full/java/org/fdroid/fdroid/nearby/SwapWorkflowActivity.java

@@ -934,7 +934,8 @@ public class SwapWorkflowActivity extends AppCompatActivity {
             new QrGenAsyncTask(SwapWorkflowActivity.this, R.id.wifi_qr_code).execute(qrUriString);
 
             // Replace all blacks with the background blue.
-            qrImage.setColorFilter(new LightingColorFilter(0xffffffff, getResources().getColor(R.color.swap_blue)));
+            qrImage.setColorFilter(new LightingColorFilter(0xffffffff, ContextCompat.getColor(this,
+                    R.color.swap_blue)));
 
             final View qrWarningMessage = container.findViewById(R.id.warning_qr_scanner);
             if (CameraCharacteristicsChecker.getInstance(this).hasAutofocus()) {

app/src/full/java/org/fdroid/fdroid/panic/DestructiveCheckBoxPreference.java

@@ -1,10 +1,12 @@
 package org.fdroid.fdroid.panic;
 
 import android.content.Context;
-import android.content.res.Resources;
+import android.util.AttributeSet;
+
+import androidx.core.content.ContextCompat;
 import androidx.preference.CheckBoxPreference;
 import androidx.preference.PreferenceViewHolder;
-import android.util.AttributeSet;
+
 import org.fdroid.fdroid.FDroidApp;
 import org.fdroid.fdroid.R;
 
@@ -31,11 +33,10 @@ public class DestructiveCheckBoxPreference extends CheckBoxPreference {
         if (!holder.itemView.isEnabled()) {
             return;
         }
-        Resources resources = getContext().getResources();
         if (FDroidApp.isAppThemeLight()) {
-            holder.itemView.setBackgroundColor(resources.getColor(R.color.panic_destructive_light));
+            holder.itemView.setBackgroundColor(ContextCompat.getColor(getContext(), R.color.panic_destructive_light));
         } else {
-            holder.itemView.setBackgroundColor(resources.getColor(R.color.panic_destructive_dark));
+            holder.itemView.setBackgroundColor(ContextCompat.getColor(getContext(), R.color.panic_destructive_dark));
         }
     }
 }

app/src/full/java/org/fdroid/fdroid/panic/DestructivePreference.java

@@ -1,9 +1,12 @@
 package org.fdroid.fdroid.panic;
 
 import android.content.Context;
+import android.util.AttributeSet;
+
+import androidx.core.content.ContextCompat;
 import androidx.preference.Preference;
 import androidx.preference.PreferenceViewHolder;
-import android.util.AttributeSet;
+
 import org.fdroid.fdroid.FDroidApp;
 import org.fdroid.fdroid.R;
 
@@ -28,9 +31,9 @@ public class DestructivePreference extends Preference {
     public void onBindViewHolder(PreferenceViewHolder holder) {
         super.onBindViewHolder(holder);
         if (FDroidApp.isAppThemeLight()) {
-            holder.itemView.setBackgroundColor(getContext().getResources().getColor(R.color.panic_destructive_light));
+            holder.itemView.setBackgroundColor(ContextCompat.getColor(getContext(), R.color.panic_destructive_light));
         } else {
-            holder.itemView.setBackgroundColor(getContext().getResources().getColor(R.color.panic_destructive_dark));
+            holder.itemView.setBackgroundColor(ContextCompat.getColor(getContext(), R.color.panic_destructive_dark));
         }
     }
 }

app/src/full/java/org/fdroid/fdroid/panic/SelectInstalledAppsActivity.java

@@ -20,23 +20,25 @@
 package org.fdroid.fdroid.panic;
 
 import android.annotation.SuppressLint;
-import android.content.res.Resources;
 import android.database.Cursor;
 import android.graphics.LightingColorFilter;
 import android.graphics.drawable.Drawable;
 import android.os.Bundle;
-import androidx.annotation.NonNull;
-import androidx.loader.app.LoaderManager;
-import androidx.loader.content.CursorLoader;
-import androidx.loader.content.Loader;
-import androidx.appcompat.app.AppCompatActivity;
-import androidx.recyclerview.widget.LinearLayoutManager;
-import androidx.recyclerview.widget.RecyclerView;
-import androidx.appcompat.widget.Toolbar;
 import android.view.Menu;
 import android.view.MenuItem;
 import android.view.View;
 import android.widget.TextView;
+
+import androidx.annotation.NonNull;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.appcompat.widget.Toolbar;
+import androidx.core.content.ContextCompat;
+import androidx.loader.app.LoaderManager;
+import androidx.loader.content.CursorLoader;
+import androidx.loader.content.Loader;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
 import org.fdroid.fdroid.FDroidApp;
 import org.fdroid.fdroid.Preferences;
 import org.fdroid.fdroid.R;
@@ -116,9 +118,9 @@ public class SelectInstalledAppsActivity extends AppCompatActivity implements Lo
         menuItem.setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS);
         checkId = menuItem.getItemId();
         if (FDroidApp.isAppThemeLight()) {
-            Resources resources = getResources();
+            Drawable icon = ContextCompat.getDrawable(this, R.drawable.check);
-            Drawable icon = resources.getDrawable(R.drawable.check);
+            icon.setColorFilter(new LightingColorFilter(0xffffffff, ContextCompat.getColor(this,
-            icon.setColorFilter(new LightingColorFilter(0xffffffff, resources.getColor(android.R.color.white)));
+                    android.R.color.white)));
             menuItem.setIcon(icon);
         } else {
             menuItem.setIcon(R.drawable.check);

app/src/main/java/org/fdroid/fdroid/views/ManageReposActivity.java

@@ -35,15 +35,6 @@ import android.net.wifi.WifiManager;
 import android.os.AsyncTask;
 import android.os.Build;
 import android.os.Bundle;
-import androidx.annotation.NonNull;
-import androidx.loader.app.LoaderManager;
-import androidx.core.app.NavUtils;
-import androidx.core.app.TaskStackBuilder;
-import androidx.loader.content.CursorLoader;
-import androidx.loader.content.Loader;
-import androidx.appcompat.app.AlertDialog;
-import androidx.appcompat.app.AppCompatActivity;
-import androidx.appcompat.widget.Toolbar;
 import android.text.Editable;
 import android.text.TextUtils;
 import android.text.TextWatcher;
@@ -57,6 +48,18 @@ import android.widget.EditText;
 import android.widget.ListView;
 import android.widget.TextView;
 import android.widget.Toast;
+
+import androidx.annotation.NonNull;
+import androidx.appcompat.app.AlertDialog;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.appcompat.widget.Toolbar;
+import androidx.core.app.NavUtils;
+import androidx.core.app.TaskStackBuilder;
+import androidx.core.content.ContextCompat;
+import androidx.loader.app.LoaderManager;
+import androidx.loader.content.CursorLoader;
+import androidx.loader.content.Loader;
+
 import org.fdroid.fdroid.AddRepoIntentService;
 import org.fdroid.fdroid.FDroidApp;
 import org.fdroid.fdroid.IndexUpdater;
@@ -538,7 +541,8 @@ public class ManageReposActivity extends AppCompatActivity
                     overwriteMessage.setText(getString(messageRes, name));
                     overwriteMessage.setVisibility(View.VISIBLE);
                     if (redMessage) {
-                        overwriteMessage.setTextColor(getResources().getColor(R.color.red));
+                        overwriteMessage.setTextColor(ContextCompat.getColor(ManageReposActivity.this,
+                                R.color.red));
                     } else {
                         overwriteMessage.setTextColor(defaultTextColour);
                     }

app/src/main/java/org/fdroid/fdroid/views/RepoDetailsActivity.java

@@ -13,14 +13,6 @@ import android.nfc.NfcAdapter;
 import android.os.Build;
 import android.os.Bundle;
 import android.os.Parcelable;
-import androidx.annotation.NonNull;
-import androidx.core.app.NavUtils;
-import androidx.localbroadcastmanager.content.LocalBroadcastManager;
-import androidx.appcompat.app.AlertDialog;
-import androidx.appcompat.app.AppCompatActivity;
-import androidx.recyclerview.widget.LinearLayoutManager;
-import androidx.recyclerview.widget.RecyclerView;
-import androidx.appcompat.widget.Toolbar;
 import android.text.TextUtils;
 import android.text.format.DateUtils;
 import android.view.LayoutInflater;
@@ -33,6 +25,17 @@ import android.widget.CompoundButton;
 import android.widget.EditText;
 import android.widget.TextView;
 import android.widget.Toast;
+
+import androidx.annotation.NonNull;
+import androidx.appcompat.app.AlertDialog;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.appcompat.widget.Toolbar;
+import androidx.core.app.NavUtils;
+import androidx.core.content.ContextCompat;
+import androidx.localbroadcastmanager.content.LocalBroadcastManager;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
 import org.fdroid.fdroid.FDroidApp;
 import org.fdroid.fdroid.NfcHelper;
 import org.fdroid.fdroid.NfcNotEnabledActivity;
@@ -305,7 +308,7 @@ public class RepoDetailsActivity extends AppCompatActivity {
         // TODO show the current state of the signature check, not just whether there is a key or not
         if (TextUtils.isEmpty(repo.fingerprint) && TextUtils.isEmpty(repo.signingCertificate)) {
             repoFingerprint = getResources().getString(R.string.unsigned);
-            repoFingerprintView.setTextColor(getResources().getColor(R.color.unsigned));
+            repoFingerprintView.setTextColor(ContextCompat.getColor(this, R.color.unsigned));
             repoFingerprintDescView.setVisibility(View.VISIBLE);
             repoFingerprintDescView.setText(getResources().getString(R.string.unsigned_description));
         } else {