mirror of
https://github.com/TeamNewPipe/NewPipe
synced 2025-10-31 07:13:00 +00:00
Use Optional for simpler code
This commit is contained in:
Stypox
@@ -91,16 +91,16 @@ import java.lang.ref.WeakReference;
|
||||
import java.util.ArrayList;
|
||||
import java.util.Arrays;
|
||||
import java.util.List;
|
||||
import java.util.Optional;
|
||||
import java.util.function.Consumer;
|
||||
|
||||
import icepick.Icepick;
|
||||
import icepick.State;
|
||||
import io.reactivex.rxjava3.android.schedulers.AndroidSchedulers;
|
||||
import io.reactivex.rxjava3.core.Observable;
|
||||
import io.reactivex.rxjava3.core.Single;
|
||||
import io.reactivex.rxjava3.core.SingleTransformer;
|
||||
import io.reactivex.rxjava3.disposables.CompositeDisposable;
|
||||
import io.reactivex.rxjava3.disposables.Disposable;
|
||||
import io.reactivex.rxjava3.functions.Consumer;
|
||||
import io.reactivex.rxjava3.schedulers.Schedulers;
|
||||
|
||||
/**
|
||||
@@ -702,7 +702,7 @@ public class RouterActivity extends AppCompatActivity {
|
||||
}
|
||||
|
||||
public static class PersistentFragment extends Fragment {
|
||||
private WeakReference<AppCompatActivity> context;
|
||||
private WeakReference<AppCompatActivity> weakContext;
|
||||
private final CompositeDisposable disposables = new CompositeDisposable();
|
||||
private int running = 0;
|
||||
|
||||
@@ -711,21 +711,23 @@ public class RouterActivity extends AppCompatActivity {
|
||||
running++;
|
||||
} else {
|
||||
running--;
|
||||
if (running <= 0 && getActivityContext() != null) {
|
||||
getActivityContext().getSupportFragmentManager()
|
||||
.beginTransaction().remove(this).commit();
|
||||
if (running <= 0) {
|
||||
getActivityContext().ifPresent(context -> context.getSupportFragmentManager()
|
||||
.beginTransaction().remove(this).commit());
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
public interface ResultRunnable {
|
||||
void run(AppCompatActivity context);
|
||||
}
|
||||
|
||||
@Override
|
||||
public void onAttach(@NonNull final Context activityContext) {
|
||||
super.onAttach(activityContext);
|
||||
context = new WeakReference<>((AppCompatActivity) activityContext);
|
||||
weakContext = new WeakReference<>((AppCompatActivity) activityContext);
|
||||
}
|
||||
|
||||
@Override
|
||||
public void onDetach() {
|
||||
super.onDetach();
|
||||
weakContext = null;
|
||||
}
|
||||
|
||||
@SuppressWarnings("deprecation")
|
||||
@@ -741,12 +743,13 @@ public class RouterActivity extends AppCompatActivity {
|
||||
disposables.clear();
|
||||
}
|
||||
|
||||
private AppCompatActivity getActivityContext() {
|
||||
return context == null ? null : context.get();
|
||||
}
|
||||
|
||||
private boolean activityGone() {
|
||||
return getActivityContext() == null || getActivityContext().isFinishing();
|
||||
/**
|
||||
* @return the activity context, if there is one and the activity is not finishing
|
||||
*/
|
||||
private Optional<AppCompatActivity> getActivityContext() {
|
||||
return Optional.ofNullable(weakContext)
|
||||
.flatMap(context -> Optional.ofNullable(context.get()))
|
||||
.filter(context -> !context.isFinishing());
|
||||
}
|
||||
|
||||
// guard against IllegalStateException in calling DialogFragment.show() whilst in background
|
||||
@@ -754,14 +757,11 @@ public class RouterActivity extends AppCompatActivity {
|
||||
// the network request to return) when it internally calls FragmentTransaction.commit()
|
||||
// after the FragmentManager has saved its states (isStateSaved() == true)
|
||||
// (ref: https://stackoverflow.com/a/39813506)
|
||||
private void runOnVisible(final ResultRunnable runnable) {
|
||||
if (activityGone()) {
|
||||
inFlight(false);
|
||||
return;
|
||||
}
|
||||
private void runOnVisible(final Consumer<AppCompatActivity> runnable) {
|
||||
getActivityContext().ifPresentOrElse(context -> {
|
||||
if (getLifecycle().getCurrentState().isAtLeast(Lifecycle.State.STARTED)) {
|
||||
getActivityContext().runOnUiThread(() -> {
|
||||
runnable.run(getActivityContext());
|
||||
context.runOnUiThread(() -> {
|
||||
runnable.accept(context);
|
||||
inFlight(false);
|
||||
});
|
||||
} else {
|
||||
@@ -769,45 +769,44 @@ public class RouterActivity extends AppCompatActivity {
|
||||
@Override
|
||||
public void onResume(@NonNull final LifecycleOwner owner) {
|
||||
getLifecycle().removeObserver(this);
|
||||
if (activityGone()) {
|
||||
getActivityContext().ifPresentOrElse(context ->
|
||||
context.runOnUiThread(() -> {
|
||||
runnable.accept(context);
|
||||
inFlight(false);
|
||||
return;
|
||||
}
|
||||
getActivityContext().runOnUiThread(() -> {
|
||||
runnable.run(getActivityContext());
|
||||
inFlight(false);
|
||||
});
|
||||
}),
|
||||
() -> inFlight(false)
|
||||
);
|
||||
}
|
||||
});
|
||||
// this trick doesn't seem to work on Android 10+ (API 29)
|
||||
// which places restrictions on starting activities from the background
|
||||
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.Q
|
||||
&& !getActivityContext().isChangingConfigurations()) {
|
||||
&& !context.isChangingConfigurations()) {
|
||||
// try to bring the activity back to front if minimised
|
||||
final Intent i = new Intent(getActivityContext(), RouterActivity.class);
|
||||
final Intent i = new Intent(context, RouterActivity.class);
|
||||
i.setFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT);
|
||||
startActivity(i);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
<T> SingleTransformer<T, T> pleaseWait() {
|
||||
return single -> single
|
||||
// 'abuse' ambWith() here to cancel the toast for us when the wait is over
|
||||
.ambWith(Single.create(emitter -> {
|
||||
if (!activityGone()) {
|
||||
getActivityContext().runOnUiThread(() -> {
|
||||
// Getting the stream info usually takes a moment
|
||||
// Notifying the user here to ensure that no confusion arises
|
||||
final Toast t = Toast.makeText(
|
||||
getActivityContext().getApplicationContext(),
|
||||
getString(R.string.processing_may_take_a_moment),
|
||||
Toast.LENGTH_LONG);
|
||||
t.show();
|
||||
emitter.setCancellable(t::cancel);
|
||||
}, () -> {
|
||||
// this branch is executed if there is no activity context
|
||||
inFlight(false);
|
||||
});
|
||||
}
|
||||
}));
|
||||
|
||||
<T> Single<T> pleaseWait(final Single<T> single) {
|
||||
// 'abuse' ambWith() here to cancel the toast for us when the wait is over
|
||||
return single.ambWith(Single.create(emitter -> getActivityContext().ifPresent(context ->
|
||||
context.runOnUiThread(() -> {
|
||||
// Getting the stream info usually takes a moment
|
||||
// Notifying the user here to ensure that no confusion arises
|
||||
final Toast toast = Toast.makeText(context,
|
||||
getString(R.string.processing_may_take_a_moment),
|
||||
Toast.LENGTH_LONG);
|
||||
toast.show();
|
||||
emitter.setCancellable(toast::cancel);
|
||||
}))));
|
||||
}
|
||||
|
||||
@SuppressLint("CheckResult")
|
||||
@@ -816,7 +815,7 @@ public class RouterActivity extends AppCompatActivity {
|
||||
disposables.add(ExtractorHelper.getStreamInfo(currentServiceId, currentUrl, true)
|
||||
.subscribeOn(Schedulers.io())
|
||||
.observeOn(AndroidSchedulers.mainThread())
|
||||
.compose(pleaseWait())
|
||||
.compose(this::pleaseWait)
|
||||
.subscribe(result ->
|
||||
runOnVisible(ctx -> {
|
||||
final FragmentManager fm = ctx.getSupportFragmentManager();
|
||||
@@ -833,23 +832,18 @@ public class RouterActivity extends AppCompatActivity {
|
||||
disposables.add(ExtractorHelper.getStreamInfo(currentServiceId, currentUrl, false)
|
||||
.subscribeOn(Schedulers.io())
|
||||
.observeOn(AndroidSchedulers.mainThread())
|
||||
.compose(pleaseWait())
|
||||
.compose(this::pleaseWait)
|
||||
.subscribe(
|
||||
info -> {
|
||||
if (!activityGone()) {
|
||||
PlaylistDialog.createCorrespondingDialog(
|
||||
getActivityContext(),
|
||||
info -> getActivityContext().ifPresent(context ->
|
||||
PlaylistDialog.createCorrespondingDialog(context,
|
||||
List.of(new StreamEntity(info)),
|
||||
playlistDialog ->
|
||||
runOnVisible(ctx -> {
|
||||
playlistDialog -> runOnVisible(ctx -> {
|
||||
// dismiss listener to be handled by FragmentManager
|
||||
final FragmentManager fm =
|
||||
ctx.getSupportFragmentManager();
|
||||
playlistDialog.show(fm, "addToPlaylistDialog");
|
||||
})
|
||||
);
|
||||
}
|
||||
},
|
||||
)),
|
||||
throwable -> runOnVisible(ctx -> handleError(ctx, new ErrorInfo(
|
||||
throwable,
|
||||
UserAction.REQUESTED_STREAM,
|
||||
|
||||
Reference in New Issue
Block a user