Fixes intermittent crashes when clicking the reply button and opening a thread. Closes #26

app/src/main/java/com/keylesspalace/tusky/LoginActivity.java

@@ -22,6 +22,7 @@ import android.content.Intent;
 import android.content.SharedPreferences;
 import android.net.Uri;
 import android.os.Bundle;
+import android.support.v7.app.AppCompatActivity;
 import android.view.View;
 import android.widget.Button;
 import android.widget.EditText;
@@ -41,7 +42,7 @@ import retrofit2.Response;
 import retrofit2.Retrofit;
 import retrofit2.converter.gson.GsonConverterFactory;
 
-public class LoginActivity extends BaseActivity {
+public class LoginActivity extends AppCompatActivity {
     private static final String TAG = "LoginActivity"; // logging tag
     private static String OAUTH_SCOPES = "read write follow";
 

app/src/main/java/com/keylesspalace/tusky/SFragment.java

@@ -19,7 +19,6 @@ import android.content.Context;
 import android.content.Intent;
 import android.content.SharedPreferences;
 import android.os.Bundle;
-import android.provider.ContactsContract;
 import android.support.annotation.Nullable;
 import android.support.v4.app.DialogFragment;
 import android.support.v4.app.FragmentTransaction;
@@ -74,7 +73,7 @@ public class SFragment extends BaseFragment {
         mentionedUsernames.remove(loggedInUsername);
         Intent intent = new Intent(getContext(), ComposeActivity.class);
         intent.putExtra("in_reply_to_id", inReplyToId);
-        intent.putExtra("reply_visibility", status.visibility.toString().toLowerCase());
+        intent.putExtra("reply_visibility", status.getVisibility().toString().toLowerCase());
         intent.putExtra("mentioned_usernames", mentionedUsernames.toArray(new String[0]));
         startActivity(intent);
     }

app/src/main/java/com/keylesspalace/tusky/ViewThreadFragment.java

@@ -125,15 +125,18 @@ public class ViewThreadFragment extends SFragment implements StatusActionListene
     }
 
     private void onThreadRequestFailure(final String id) {
-        Snackbar.make(recyclerView, R.string.error_view_thread, Snackbar.LENGTH_LONG)
-                .setAction(R.string.action_retry, new View.OnClickListener() {
-                    @Override
-                    public void onClick(View v) {
-                        sendThreadRequest(id);
-                        sendStatusRequest(id);
-                    }
-                })
-                .show();
+        View view = getView();
+        if (view != null) {
+            Snackbar.make(view, R.string.error_view_thread, Snackbar.LENGTH_LONG)
+                    .setAction(R.string.action_retry, new View.OnClickListener() {
+                        @Override
+                        public void onClick(View v) {
+                            sendThreadRequest(id);
+                            sendStatusRequest(id);
+                        }
+                    })
+                    .show();
+        }
     }
 
     public void onReply(int position) {

app/src/main/java/com/keylesspalace/tusky/entity/Status.java

@@ -77,6 +77,10 @@ public class Status {
 
     public Visibility visibility;
 
+    public Visibility getVisibility() {
+        return visibility == null ? Visibility.UNLISTED : visibility;
+    }
+
     @SerializedName("media_attachments")
     public MediaAttachment[] attachments;