我有一个要发送给活动的对象,例如包裹,我使用包裹,成功发送了所有属性,除了一个-作为NAN到达的“经度”,我不知道为什么
这是我的课程:
const store = createStore(
reducer,
compose(
applyMiddleware(
thunk.withExtraArgument({ getFirebase, getFirestore }),
logger
),
reduxFirestore(firebase),
reactReduxFirebase(firebase, {
useFirestoreForProfile: true,
userProfile: "users"
attachAuthIsReady: true,
firebaseStateName: "firebaseReducer"
})
)
这是我对writeToParcel的调用:
private String city;
private double longitude;
private double latitude;
public Place(String city, double longitude, double latitude) {
this.city = city;
this.longitude = longitude;
this.latitude = latitude;
}
public Place() {
}
protected Place(Parcel in) {
city = in.readString();
longitude = in.readDouble();
latitude=in.readDouble();
}
public static final Creator<Place> CREATOR = new Creator<Place>() {
@Override
public Place createFromParcel(Parcel in) {
return new Place(in);
}
@Override
public Place[] newArray(int size) {
return new Place[size];
}
};
@Override
public int describeContents() {
return 0;
}
public void writeToParcel(Parcel parcel, int i) {
parcel.writeString(city);
parcel.writeDouble(latitude);
parcel.writeDouble(longitude);
}
这是对getParcelableExtra的调用:
intent.putExtra("myPlace", myPlace);
答案 0 :(得分:1)
似乎您在取消对Place对象的包裹时忘记了回读纬度值;构造函数应该像
protected Place(Parcel in) {
city = in.readString();
latitude = in.readDouble();
longitude = in.readDouble();
}
现代IDE(如Android Studio)具有生成宗地方法实现的选项,这倾向于避免在对对象进行拆分/取消拆分时忘记字段。