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Code Issues Packages Projects Releases Wiki Activity

Safely reference parent fragment from adapters

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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/AdapterContact.java
View File

@@ -33,7 +33,11 @@ import android.widget.ImageView;
import android.widget.TextView;
import androidx.annotation.NonNull;
import androidx.fragment.app.Fragment;
import androidx.lifecycle.Lifecycle;
import androidx.lifecycle.LifecycleObserver;
import androidx.lifecycle.LifecycleOwner;
import androidx.lifecycle.OnLifecycleEvent;
import androidx.recyclerview.widget.DiffUtil;
import androidx.recyclerview.widget.ListUpdateCallback;
import androidx.recyclerview.widget.RecyclerView;
@@ -43,6 +47,8 @@ import java.util.ArrayList;
import java.util.List;
public class AdapterContact extends RecyclerView.Adapter<AdapterContact.ViewHolder> {
private Fragment parentFragment;
private Context context;
private LifecycleOwner owner;
private LayoutInflater inflater;
@@ -225,14 +231,28 @@ public class AdapterContact extends RecyclerView.Adapter<AdapterContact.ViewHold
}
}
AdapterContact(Context context, LifecycleOwner owner) {
this.context = context;
this.owner = owner;
AdapterContact(Fragment parentFragment) {
this.parentFragment = parentFragment;
this.context = parentFragment.getContext();
this.owner = parentFragment.getViewLifecycleOwner();
this.inflater = LayoutInflater.from(context);
this.contacts = Helper.hasPermission(context, Manifest.permission.READ_CONTACTS);
this.colorAccent = Helper.resolveColor(context, R.attr.colorAccent);
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(AdapterContact.this + " parent destroyed");
AdapterContact.this.parentFragment = null;
AdapterContact.this.context = null;
AdapterContact.this.owner = null;
}
});
}
public void set(@NonNull List<TupleContactEx> contacts) {