我改变了我的类接口以使用parcelable,因为我需要通过一些活动传递一个对象来完成我的工作。
所以我已经实现了一个parcelable类(使用插件来实现):
public class Photo implements Parcelable {
private int id;
private Uri image;
private byte[] cropedImage;
private String path;
private Double lat;
private Double lon;
private Double alt;
private String time;
public Photo() {
}
@Override
public int describeContents() {
return 0;
}
public Photo(Uri image, Double lat, Double lon, Double alt, String time) {
this.image = image;
this.lat = lat;
this.lon = lon;
this.alt = alt;
this.time = time;
}
@Override
public void writeToParcel(Parcel dest, int flags) {
dest.writeInt(this.id);
dest.writeParcelable(this.image, flags);
dest.writeByteArray(this.cropedImage);
dest.writeString(this.path);
dest.writeValue(this.lat);
dest.writeValue(this.lon);
dest.writeValue(this.alt);
dest.writeString(this.time);
}
protected Photo(Parcel in) {
this.id = in.readInt();
this.image = in.readParcelable(Uri.class.getClassLoader());
this.cropedImage = in.createByteArray();
this.path = in.readString();
this.lat = (Double) in.readValue(Double.class.getClassLoader());
this.lon = (Double) in.readValue(Double.class.getClassLoader());
this.alt = (Double) in.readValue(Double.class.getClassLoader());
this.time = in.readString();
}
public static final Creator<Photo> CREATOR = new Creator<Photo>() {
@Override
public Photo createFromParcel(Parcel source) {
return new Photo(source);
}
@Override
public Photo[] newArray(int size) {
return new Photo[size];
}
};
}
在我的活动中,我创建并填写照片的构造函数,如下所示:
Photo photo = new Photo(image,location.getLatitude(),location.getLongitude(),location.getAltitude(),data);
Intent i = new Intent(CameraCapture.this, CropImage.class);
i.putExtra("Photo",photo);
我将它传递给CropImage活动,在那个活动上我需要检索parcelable并获取特定数据(在这种情况下只是uri)
这就是我所做的:
photo = getIntent().getExtras().getParcelable("Photo");
uri = photo.getImage();
getImage()不存在,我不知道如何检索特定照片对象的parcelable字段,任何帮助?是否有其他方法可以使用parcelable做到这一点,我没有搞清楚?
非常感谢
答案 0 :(得分:1)
正如我所看到的,您的数据类没有getter和setter,因此请尝试右键单击该类并选择create setter和getter。然后使用这些getter来获取数据
代表。如果你想抽出时间
private String time;
public String getTime(){
return time;
}