Use getOnBackPressedDispatcher().addCallback in PostLinkActivity.

Author: Docile-Alligator

app/src/main/java/ml/docilealligator/infinityforreddit/activities/PostLinkActivity.java

@@ -6,7 +6,6 @@
 import android.content.Intent;
 import android.content.SharedPreferences;
 import android.content.res.Resources;
-import android.os.Build;
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.PersistableBundle;
@@ -16,6 +15,7 @@
 import android.webkit.URLUtil;
 import android.widget.Toast;
 
+import androidx.activity.OnBackPressedCallback;
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.core.graphics.Insets;
@@ -39,11 +39,9 @@
 import javax.inject.Named;
 
 import jp.wasabeef.glide.transformations.RoundedCornersTransformation;
-import ml.docilealligator.infinityforreddit.subreddit.Flair;
 import ml.docilealligator.infinityforreddit.Infinity;
 import ml.docilealligator.infinityforreddit.R;
 import ml.docilealligator.infinityforreddit.RedditDataRoomDatabase;
-import ml.docilealligator.infinityforreddit.thing.SelectThingReturnKey;
 import ml.docilealligator.infinityforreddit.account.Account;
 import ml.docilealligator.infinityforreddit.adapters.MarkdownBottomBarRecyclerViewAdapter;
 import ml.docilealligator.infinityforreddit.apis.TitleSuggestion;
@@ -56,6 +54,8 @@
 import ml.docilealligator.infinityforreddit.events.SubmitTextOrLinkPostEvent;
 import ml.docilealligator.infinityforreddit.events.SwitchAccountEvent;
 import ml.docilealligator.infinityforreddit.services.SubmitPostService;
+import ml.docilealligator.infinityforreddit.subreddit.Flair;
+import ml.docilealligator.infinityforreddit.thing.SelectThingReturnKey;
 import ml.docilealligator.infinityforreddit.utils.APIUtils;
 import retrofit2.Call;
 import retrofit2.Callback;
@@ -391,6 +391,24 @@ public void onUploadImage() {
         binding.markdownBottomBarRecyclerViewPostLinkActivity.setLayoutManager(new LinearLayoutManagerBugFixed(this,
                 LinearLayoutManager.HORIZONTAL, true).setStackFromEndAndReturnCurrentObject());
         binding.markdownBottomBarRecyclerViewPostLinkActivity.setAdapter(adapter);
+
+        getOnBackPressedDispatcher().addCallback(this, new OnBackPressedCallback(true) {
+            @Override
+            public void handleOnBackPressed() {
+                if (isPosting) {
+                    promptAlertDialog(R.string.exit_when_submit, R.string.exit_when_submit_post_detail);
+                } else {
+                    if (!binding.postTitleEditTextPostLinkActivity.getText().toString().isEmpty()
+                            || !binding.postContentEditTextPostLinkActivity.getText().toString().isEmpty()
+                            || !binding.postLinkEditTextPostLinkActivity.getText().toString().isEmpty()) {
+                        promptAlertDialog(R.string.discard, R.string.discard_detail);
+                    } else {
+                        setEnabled(false);
+                        triggerBackPress();
+                    }
+                }
+            }
+        });
     }
 
     private void loadCurrentAccount() {
@@ -522,18 +540,7 @@ public boolean onCreateOptionsMenu(Menu menu) {
     public boolean onOptionsItemSelected(@NonNull MenuItem item) {
         int itemId = item.getItemId();
         if (itemId == android.R.id.home) {
-            if (isPosting) {
-                promptAlertDialog(R.string.exit_when_submit, R.string.exit_when_submit_post_detail);
-                return true;
-            } else {
-                if (!binding.postTitleEditTextPostLinkActivity.getText().toString().isEmpty()
-                        || !binding.postContentEditTextPostLinkActivity.getText().toString().isEmpty()
-                        || !binding.postLinkEditTextPostLinkActivity.getText().toString().isEmpty()) {
-                    promptAlertDialog(R.string.discard, R.string.discard_detail);
-                    return true;
-                }
-            }
-            finish();
+            triggerBackPress();
             return true;
         } else if (itemId == R.id.action_send_post_link_activity) {
             if (!subredditSelected) {
@@ -614,21 +621,6 @@ public boolean onOptionsItemSelected(@NonNull MenuItem item) {
         return false;
     }
 
-    @Override
-    public void onBackPressed() {
-        if (isPosting) {
-            promptAlertDialog(R.string.exit_when_submit, R.string.exit_when_submit_post_detail);
-        } else {
-            if (!binding.postTitleEditTextPostLinkActivity.getText().toString().isEmpty()
-                    || !binding.postContentEditTextPostLinkActivity.getText().toString().isEmpty()
-                    || !binding.postLinkEditTextPostLinkActivity.getText().toString().isEmpty()) {
-                promptAlertDialog(R.string.discard, R.string.discard_detail);
-            } else {
-                finish();
-            }
-        }
-    }
-
     @Override
     protected void onSaveInstanceState(@NonNull Bundle outState) {
         super.onSaveInstanceState(outState);