Postprocessing for downloads and implement missing features

app/build.gradle

@@ -54,7 +54,7 @@ dependencies {
         exclude module: 'support-annotations'
     })
 
-    implementation 'com.github.TeamNewPipe:NewPipeExtractor:32d316330c26'
+    implementation 'com.github.TeamNewPipe:NewPipeExtractor:91b1efc97e'
 
     testImplementation 'junit:junit:4.12'
     testImplementation 'org.mockito:mockito-core:2.23.0'

app/src/main/java/org/schabi/newpipe/Downloader.java

@@ -89,7 +89,8 @@ public long getContentLength(String url) throws IOException {
                     .build();
             response = client.newCall(request).execute();
 
-            return Long.parseLong(response.header("Content-Length"));
+            String contentLength = response.header("Content-Length");
+            return contentLength == null ? -1 : Long.parseLong(contentLength);
         } catch (NumberFormatException e) {
             throw new IOException("Invalid content length", e);
         } finally {

app/src/main/java/org/schabi/newpipe/download/DownloadActivity.java

@@ -15,16 +15,12 @@
 import org.schabi.newpipe.settings.SettingsActivity;
 import org.schabi.newpipe.util.ThemeHelper;
 
-import io.reactivex.Completable;
-import io.reactivex.schedulers.Schedulers;
 import us.shandian.giga.service.DownloadManagerService;
-import us.shandian.giga.ui.fragment.AllMissionsFragment;
 import us.shandian.giga.ui.fragment.MissionsFragment;
 
 public class DownloadActivity extends AppCompatActivity {
 
     private static final String MISSIONS_FRAGMENT_TAG = "fragment_tag";
-    private DeleteDownloadManager mDeleteDownloadManager;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
@@ -47,32 +43,17 @@ protected void onCreate(Bundle savedInstanceState) {
             actionBar.setDisplayShowTitleEnabled(true);
         }
 
-        mDeleteDownloadManager = new DeleteDownloadManager(this);
-        mDeleteDownloadManager.restoreState(savedInstanceState);
-
-        MissionsFragment fragment = (MissionsFragment) getFragmentManager().findFragmentByTag(MISSIONS_FRAGMENT_TAG);
-        if (fragment != null) {
-            fragment.setDeleteManager(mDeleteDownloadManager);
-        } else {
-            getWindow().getDecorView().getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
-                @Override
-                public void onGlobalLayout() {
-                    updateFragments();
-                    getWindow().getDecorView().getViewTreeObserver().removeGlobalOnLayoutListener(this);
-                }
-            });
-        }
-    }
-
-    @Override
-    protected void onSaveInstanceState(Bundle outState) {
-        mDeleteDownloadManager.saveState(outState);
-        super.onSaveInstanceState(outState);
+        getWindow().getDecorView().getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
+            @Override
+            public void onGlobalLayout() {
+                updateFragments();
+                getWindow().getDecorView().getViewTreeObserver().removeGlobalOnLayoutListener(this);
+            }
+        });
     }
 
     private void updateFragments() {
-        MissionsFragment fragment = new AllMissionsFragment();
-        fragment.setDeleteManager(mDeleteDownloadManager);
+        MissionsFragment fragment = new MissionsFragment();
 
         getFragmentManager().beginTransaction()
                 .replace(R.id.frame, fragment, MISSIONS_FRAGMENT_TAG)
@@ -99,7 +80,6 @@ public boolean onOptionsItemSelected(MenuItem item) {
             case R.id.action_settings: {
                 Intent intent = new Intent(this, SettingsActivity.class);
                 startActivity(intent);
-                deletePending();
                 return true;
             }
             default:
@@ -108,14 +88,7 @@ public boolean onOptionsItemSelected(MenuItem item) {
     }
 
     @Override
-    public void onBackPressed() {
-        super.onBackPressed();
-        deletePending();
-    }
-
-    private void deletePending() {
-        Completable.fromAction(mDeleteDownloadManager::deletePending)
-                .subscribeOn(Schedulers.io())
-                .subscribe();
+    public void onRestoreInstanceState(Bundle inState){
+        super.onRestoreInstanceState(inState);
     }
 }