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Code Issues Packages Projects Releases Wiki Activity

Safely reference parent fragment from adapters

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This commit is contained in:
M66B
2019-07-01 09:30:07 +02:00
parent 0d5b1e2bac
commit 72db63e979
26 changed files with 303 additions and 89 deletions
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26
app/src/main/java/eu/faircode/email/AdapterAccount.java
View File

@@ -40,7 +40,11 @@ import android.widget.TextView;
import androidx.annotation.NonNull;
import androidx.appcompat.widget.PopupMenu;
import androidx.constraintlayout.widget.Group;
import androidx.fragment.app.Fragment;
import androidx.lifecycle.Lifecycle;
import androidx.lifecycle.LifecycleObserver;
import androidx.lifecycle.LifecycleOwner;
import androidx.lifecycle.OnLifecycleEvent;
import androidx.localbroadcastmanager.content.LocalBroadcastManager;
import androidx.recyclerview.widget.DiffUtil;
import androidx.recyclerview.widget.ListUpdateCallback;
@@ -53,9 +57,11 @@ import java.util.ArrayList;
import java.util.List;
public class AdapterAccount extends RecyclerView.Adapter<AdapterAccount.ViewHolder> {
private Fragment parentFragment;
private boolean settings;
private Context context;
private LifecycleOwner owner;
private boolean settings;
private LayoutInflater inflater;
private int colorUnread;
@@ -270,16 +276,28 @@ public class AdapterAccount extends RecyclerView.Adapter<AdapterAccount.ViewHold
}
}
AdapterAccount(Context context, LifecycleOwner owner, boolean settings) {
this.context = context;
this.owner = owner;
AdapterAccount(final Fragment parentFragment, boolean settings) {
this.parentFragment = parentFragment;
this.settings = settings;
this.context = parentFragment.getContext();
this.owner = parentFragment.getViewLifecycleOwner();
this.inflater = LayoutInflater.from(context);
this.colorUnread = Helper.resolveColor(context, R.attr.colorUnread);
this.textColorSecondary = Helper.resolveColor(context, android.R.attr.textColorSecondary);
setHasStableIds(true);
owner.getLifecycle().addObserver(new LifecycleObserver() {
@OnLifecycleEvent(Lifecycle.Event.ON_DESTROY)
public void onDestroyed() {
Log.i(AdapterAccount.this + " parent destroyed");
AdapterAccount.this.parentFragment = null;
AdapterAccount.this.context = null;
AdapterAccount.this.owner = null;
}
});
}
public void set(@NonNull List<TupleAccountEx> accounts) {