Android-通过广播接收器跨应用程序发送/接收POJO [英] Android - Sending/Receiving POJOs across Applications via Broadcast Receiver
问题描述
我正在做两个Android应用程序.
I am doing two Android Applications.
- 应用程序1发送一个广播,其中有一个额外的"自定义POJO.
- 应用程序2接收广播,并获取附加"(自定义POJO)并显示它.
这是我的自定义POJO,其中实现了Parcelable
Here is my Custom POJO in that implements Parcelable
package com.steven.app1;
public class Customer implements Parcelable {
private int id;
private String firstName;
private String lastName;
public static final Parcelable.Creator<Customer> CREATOR = new Parcelable.Creator<Customer>() {
public Customer createFromParcel(Parcel in) {
return new Customer(in);
}
public Customer[] newArray(int size) {
return new Customer[size];
}
};
public Customer(int id, String firstName, String lastName) {
super();
this.id = id;
this.firstName = firstName;
this.lastName = lastName;
}
public Customer(Parcel source) {
id = source.readInt();
firstName = source.readString();
lastName = source.readString();
}
@Override
public int describeContents() {
return 0;
}
@Override
public void writeToParcel(Parcel dest, int flags) {
dest.writeInt(id);
dest.writeString(firstName);
dest.writeString(lastName);
}
}
应用程序1然后像这样广播
Application 1 then broadcasts like this
Intent i = new Intent("com.steven.app1.RECEIVE_CUSTOMER");
i.putExtra("customer", customer);
sendBroadcast(i);
在Application 2中,我将收到这样的Application 1广播
In Application 2, I would receive the broadcast of Application 1 like this
package com.steven.app2;
public class CustomerBroadcastReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
Bundle data = intent.getExtras();
Customer customer = (Customer) data.getParcelable("customer");
}
}
}
该行出现错误
Customer customer = (Customer) data.getParcelable("customer");
因为应用程序2没有客户类
because Application 2 does not have a Customer class
因此,我复制了应用程序1的Customer类,并将其粘贴到应用程序2的源中以消除错误.但是在运行应用程序2之后,会显示此错误.
So I copied the Customer class of Application 1 and pasted it in Application 2 sources to remove the error. But after running the Application 2, shows up this error.
解组时找不到类:com.steven.app1.Customer"
"Class not found when unmarshalling:com.steven.app1.Customer"
那么我将如何在Application 1中获得Customer类并在Application 2中使用它?
So how would I get the Customer class in Application 1 and use it in Application 2?
任何帮助或建议将不胜感激.非常感谢.
Any help or suggestions would greatly be appreciated. Thank you very much.
推荐答案
采用 Customer 类并将其放置在2个应用程序项目均可引用的库项目中.然后,为简化操作,您可以在 Customer 类中实现 Serializable 接口.像这样:
Take Customer class and place it in a library project that can be referenced by the 2 app projects. Then, to make it easier you can implement the Serializable interface in the Customer class. Something like:
public class Customer implements Serializable{
/**
* Auto generated
*/
private static final long serialVersionUID = -559996182231809327L;
private int id;
private String firstName;
private String lastName;
public Customer(int id, String firstName, String lastName) {
super();
this.id = id;
this.firstName = firstName;
this.lastName = lastName;
}
// Add getters/setters here
}
这将是一个更简单,更干净的解决方案.
Which is gonna be a much more simple and clean solution.
您的 onReceive(..)方法应类似于:
@Override
public void onReceive(Context context, Intent intent) {
Bundle data = intent.getExtras();
Customer customer = (Customer) data.getSerializable("customer");
}
}
要传递数据,请将其作为可序列化的附加项传递,您应该一切顺利.
To pass the data, pass it as a serializable extra and you should be good to go.
希望有帮助.
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