Android 将parcelable添加到自定义对象的接口类
我有一个自定义的对象类,但它是通过一个接口实现的,我怎样才能将parceable合并到其中呢。 我已经跟踪并搜索了Parcelable,但它只针对对象类。 例如: 我想将我的对象列表传递给android中的另一个活动 代码:Android 将parcelable添加到自定义对象的接口类,android,object,android-intent,android-activity,parcelable,Android,Object,Android Intent,Android Activity,Parcelable,我有一个自定义的对象类,但它是通过一个接口实现的,我怎样才能将parceable合并到其中呢。 我已经跟踪并搜索了Parcelable,但它只针对对象类。 例如: 我想将我的对象列表传递给android中的另一个活动 代码: public interface Projection { interface Job { @XBRead("./task") List<Task> getTasks(); @XBRead("./id")
public interface Projection {
interface Job {
@XBRead("./task")
List<Task> getTasks();
@XBRead("./id")
String getid();
@XBRead("./job_title")
String getjob_title();
@XBRead("./job_description")
String getjob_description();
@XBRead("./job_room")
String getjob_room();
@XBRead("./status")
String getstatus();
}
interface Task {
@XBRead("./task_id")
String gettask_id();
@XBRead("./task_title")
String gettask_title();
@XBRead("./task_description")
String gettask_description();
@XBRead("./task_status")
String gettask_status();
}
@XBRead("/root/job")
List<Job> getJobs();
}
公共接口投影{
接口作业{
@XBRead(“/任务”)
List gettask();
@XBRead(“./id”)
字符串getid();
@XBRead(“/职位名称”)
字符串getjob_title();
@XBRead(“/工作描述”)
字符串getjob_description();
@XBRead(“/工作间”)
字符串getjob_room();
@XBRead(“/状态”)
字符串getstatus();
}
接口任务{
@XBRead(“/任务id”)
字符串gettask_id();
@XBRead(“/任务\标题”)
字符串gettask_title();
@XBRead(“/任务描述”)
字符串gettask_description();
@XBRead(“/任务状态”)
字符串gettask_status();
}
@XBRead(“/root/job”)
列出getJobs();
}
您的自定义界面需要扩展Parcelable
实现自定义接口的类还需要实现Parcelable
接口,包括CREATOR
然后,您可以将实现自定义接口的对象添加到意图中,如下所示:
intent.putExtra("thing", thing);
ArrayList<Thing> things;
intent.putParcelableArrayListExtra("things", things);
Thing thing = intent.getParcelableExtra("thing");
或者添加包含以下对象的ArrayList
:
intent.putExtra("thing", thing);
ArrayList<Thing> things;
intent.putParcelableArrayListExtra("things", things);
Thing thing = intent.getParcelableExtra("thing");
或
arraylistthings=intent.getParcelableArrayListExtra(“things”);
完整的代码看起来像
MyInterface
public interface MyInterface extends Parcelable {
}
我的实施1
public class MyImplementation1 implements MyInterface, Parcelable {
public final int var1;
public MyImplementation1() {
this.var1 = 1;
}
protected MyImplementation1(Parcel in) {
var1 = in.readInt();
}
@Override
public void writeToParcel(Parcel dest, int flags) {
dest.writeInt(var1);
}
@Override
public int describeContents() {
return 0;
}
public static final Creator<MyImplementation1> CREATOR = new Creator<MyImplementation1>() {
@Override
public MyImplementation1 createFromParcel(Parcel in) {
return new MyImplementation1(in);
}
@Override
public MyImplementation1[] newArray(int size) {
return new MyImplementation1[size];
}
};
}
public class MainActivity1 extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main_1);
List<MyInterface> list = new ArrayList<>(2);
list.add(new MyImplementation2(21));
list.add(new MyImplementation2(22));
MyClass myClass = new MyClass(new MyImplementation1(), list);
Intent intent = new Intent(this, MainActivity2.class);
Bundle b = new Bundle();
b.putParcelable("key", myClass);
intent.putExtras(b);
startActivity(intent);
}
}
public class MainActivity2 extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main_2);
Bundle b = getIntent().getExtras();
MyClass myClass = b.getParcelable("key");
}
}