java – 使包含字节数组的自定义Parcelable

发布时间：2020-12-15 04:57:58 所属栏目：Java 来源：网络整理

导读：我正在尝试创建一个包含字节数组的Parcelable类. 我一直在尝试各种各样的事情,但如果失败似乎仍然失败我想把这个parcelable放在我的意图上. public class Car implements Parcelable{private String numberPlate;private String objectId;private byte[] ph

我正在尝试创建一个包含字节数组的Parcelable类.
我一直在尝试各种各样的事情,但如果失败似乎仍然失败
我想把这个parcelable放在我的意图上.

public class Car implements Parcelable{

private String numberPlate;
private String objectId;
private byte[] photo;
private String type;
private ParseGeoPoint location;
private ParseUser owner;
private String brand;
private double pricePerHour;
private double pricePerKm;
public static final String TYPES[] = {"Cabrio","Van","SUV","Station","Sedan","City","Different"};


public Car(String numberPlate,byte[] bs,String type,ParseGeoPoint location,String brand) {

    this.numberPlate = numberPlate;
    this.photo = bs;
    this.type = type;
    this.brand = brand;
    this.setLocation(location);
    this.owner = ParseUser.getCurrentUser();
}

public Car(Parcel in){
    readFromParcel(in);
}

 public static final Parcelable.Creator CREATOR = new Parcelable.Creator() {
        public Car createFromParcel(Parcel in) {
            return new Car(in);
        }

        public Car[] newArray(int size) {
            return new Car[size];
        }
    };



public int describeContents() {
    // TODO Auto-generated method stub
    return 0;
}

public void writeToParcel(Parcel dest,int flags) {
    dest.writeString(type);
    dest.writeString(numberPlate);
    dest.writeString(brand);
    dest.writeDouble(pricePerHour);
    dest.writeDouble(pricePerKm);
    dest.writeString(objectId);
    dest.writeByteArray(photo);


}

public void readFromParcel(Parcel in){
    this.type = in.readString();
    this.numberPlate = in.readString();
    this.brand = in.readString();
    this.pricePerHour = in.readDouble();
    this.pricePerKm = in.readDouble();
    this.objectId = in.readString();
    byte[] ba = in.createByteArray();
    in.unmarshall(ba,ba.length);
    this.photo = ba;

}

如果我不包括字节数组,它工作正常..

解决方法

为什么你使用createByteArray？我以一种应该工作的方式修改了你的代码……

public void writeToParcel(Parcel dest,int flags) {
    dest.writeString(type);
    dest.writeString(numberPlate);
    dest.writeString(brand);
    dest.writeDouble(pricePerHour);
    dest.writeDouble(pricePerKm);
    dest.writeString(objectId);
    dest.writeInt(photo.length());
    dest.writeByteArray(photo);
}



public void readFromParcel(Parcel in){
    this.type = in.readString();
    this.numberPlate = in.readString();
    this.brand = in.readString();
    this.pricePerHour = in.readDouble();
    this.pricePerKm = in.readDouble();
    this.objectId = in.readString();
    this.photo = new byte[in.readInt()];
    in.readByteArray(this.photo);
}

（编辑：李大同）

【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容!