非同期呼び出しを行い、オブジェクト変数に割り当て(理解するのに時間がかかりました)、ボタンをクリックすると、cardviewsアダプターを介して画面に読み込まれるフラグメントがあります。
私が使用しているコードは次のとおりです。
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, final Bundle savedInstanceState) {
super.onCreateView(inflater, container, savedInstanceState);
View view = inflater.inflate(R.layout.fragments_stops_list, container, false);
ButterKnife.bind(this, view); // since this is a fragment the butterknife bind method should goafter the view declaration
// saved state would indicate that we are now not capable of making multiple requests. This point has been
// properly taken care of and now I can purposely move on to other things of more importance
loadButton = (Button) view.findViewById(R.id.LOAD);
if(savedInstanceState == null) {
loadButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Log.d(">==========<", extractCreate.getCreateR().getPhone());
Parcelable[] parcelable = extractCreate.getStopsR();
commodities = Arrays.copyOf(parcelable, parcelable.length, Stops[].class);
//Log.d("Commodities size check", String.valueOf(commodities.length));
StopsAdapter adapter = new StopsAdapter(commodities);
mRecyclerView.setAdapter(adapter);
RecyclerView.LayoutManager layoutManager = new LinearLayoutManager(getActivity()); // sketchy on this part
mRecyclerView.setLayoutManager(layoutManager);
mRecyclerView.setHasFixedSize(true);
Log.d(TAG, "This is being called from the onCreate method");
}
});
}
return view;
}
問題は、画面を回転させようとするとコンテンツが消えて再び表示されるようにするには、(のid.LOAD) ボタンをクリックする必要があることです。saveInstance の状態が null であるかどうかを確認するステートメントを追加しました。画面を回すcardviewsと、アダプターを介してロードしたものが消え、再度ロードする可能性はありません。
どうすれば状態を維持できますか? メソッドのオーバーライドについて読みましたonViewStateRestoredが、クリックリスナー内でコンテンツを処理する必要があるため、そのアイデアは有望ではないようです。
どんな提案でも大歓迎です。
要求どおり、これは のコードです。
public class Stops implements Parcelable{
private String stop_id;
private String type;
private String location;
private String address;
private String city;
private String state;
private String zip;
private String from;
private String to;
private String getitem;
private Commodities[] commodities;
public Stops() {}
public String getStop_id() {
return stop_id;
}
public void setStop_id(String stop_id) {
this.stop_id = stop_id;
}
public String getType() {
return type;
}
public void setType(String type) {
this.type = type;
}
public String getLocation() {
return location;
}
public void setLocation(String location) {
this.location = location;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
public String getCity() {
return city;
}
public void setCity(String city) {
this.city = city;
}
public String getState() {
return state;
}
public void setState(String state) {
this.state = state;
}
public String getZip() {
return zip;
}
public void setZip(String zip) {
this.zip = zip;
}
public String getFrom() {
return from;
}
public void setFrom(String from) {
this.from = from;
}
public String getTo() {
return to;
}
public void setTo(String to) {
this.to = to;
}
public Commodities[] getCommodities() {
return commodities;
}
public void setCommodities(Commodities[] commodities) {
this.commodities = commodities;
}
/**
* The content for the actual parcelables start in here
*
* */
@Override
public int describeContents() {
return 0;
}
@Override
public void writeToParcel(Parcel dest, int flags) {
dest.writeString(this.stop_id);
dest.writeString(this.type);
dest.writeString(this.location);
dest.writeString(this.address);
dest.writeString(this.city);
dest.writeString(this.state);
dest.writeString(this.zip);
dest.writeString(this.from);
dest.writeString(this.to);
dest.writeString(this.getitem);
dest.writeTypedArray(this.commodities, flags);
}
protected Stops(Parcel in) {
this.stop_id = in.readString();
this.type = in.readString();
this.location = in.readString();
this.address = in.readString();
this.city = in.readString();
this.state = in.readString();
this.zip = in.readString();
this.from = in.readString();
this.to = in.readString();
this.getitem = in.readString();
this.commodities = in.createTypedArray(Commodities.CREATOR);
}
public static final Parcelable.Creator<Stops> CREATOR = new Parcelable.Creator<Stops>() {
@Override
public Stops createFromParcel(Parcel source) {
return new Stops(source);
}
@Override
public Stops[] newArray(int size) {
return new Stops[size];
}
};
}