使包含字節數組的自定義Parcelable

Question

我想使包含字節數組的Parcelable類。 我一直在嘗試各種各樣的東西，但它似乎仍然失敗，如果 我想把我的意圖放到可以parcelable。

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, 0, ba.length); 
    this.photo = ba; 

} 

，如果我不包括字節數組它工作正常..

Answer 1

爲什麼你使用createByteArray？我修改你的代碼在某種程度上，它應該工作...

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); 
}