fix mentions outside of content warnings not being clickable (#1405)

app/src/main/java/com/keylesspalace/tusky/util/LinkHelper.java

@@ -20,6 +20,8 @@ import android.content.Context;
 import android.content.Intent;
 import android.net.Uri;
 import android.preference.PreferenceManager;
+
+import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.browser.customtabs.CustomTabsIntent;
 import android.text.SpannableStringBuilder;
@@ -81,7 +83,7 @@ public class LinkHelper {
                 final String tag = text.subSequence(1, text.length()).toString();
                 customSpan = new ClickableSpanNoUnderline() {
                     @Override
-                    public void onClick(View widget) { listener.onViewTag(tag); }
+                    public void onClick(@NonNull View widget) { listener.onViewTag(tag); }
                 };
             } else if (text.charAt(0) == '@' && mentions != null && mentions.length > 0) {
                 String accountUsername = text.subSequence(1, text.length()).toString();
@@ -101,7 +103,7 @@ public class LinkHelper {
                     final String accountId = id;
                     customSpan = new ClickableSpanNoUnderline() {
                         @Override
-                        public void onClick(View widget) { listener.onViewAccount(accountId); }
+                        public void onClick(@NonNull View widget) { listener.onViewAccount(accountId); }
                     };
                 }
             }
@@ -155,7 +157,7 @@ public class LinkHelper {
             final String accountId = mention.getId();
             ClickableSpan customSpan = new ClickableSpanNoUnderline() {
                 @Override
-                public void onClick(View widget) { listener.onViewAccount(accountId); }
+                public void onClick(@NonNull View widget) { listener.onViewAccount(accountId); }
             };
 
             end += 1 + accountUsername.length(); // length of @ + username
@@ -175,6 +177,8 @@ public class LinkHelper {
             start = end;
         }
         view.setText(builder);
+        view.setLinksClickable(true);
+        view.setMovementMethod(LinkMovementMethod.getInstance());
     }
 
     /**