parcelable

Objects are transmitted between two androidactivities. To transfer data between android activities, the Intent object method is mainly used. The transfer of basic data types is quite simple, mainly through the following methods: PutExtra method. This is not described here. It mainly transmits object type data. 1. The Object class must first serialize and implement the Serializable interface, and use Bundle. putSerializable (Key, Object) to complete data transmission. 2. The Object class impleme

The aidl service only supports limited data types. If you use the aidl service to transmit complex data, you need to perform further processing. The aidl Service supports the following data types:1. Java Native type2. String and charsequence3. The elements of list, MAP, list, and map objects must be data types supported by aidl. The preceding three types do not need to be imported)4. the API automatically generated by aidl needs to be imported)5. classes that implement the Android. OS.

Original URL: http://blog.csdn.net/lixiang0522/article/details/8642202The objects passed between components in Android generally implement the Parcelable interface, of course, you can also use the Java serializable interface, the former is specifically designed for Android, more efficient, below we will implement a parcelabel. 1. Create a class to implement the Parcelable interface, which is implemented as

. Instead, you should use asinterface (ibinder) for type conversion. Note the following before writing aidl: 1. The interface name is the same as the aidl file. 2. You do not need to add access permission modifiers such as public, private, and protected before interfaces and methods, or use final or static. 3. the default types supported by aidl include the Basic Java types (INT, long, Boolean, etc.) and (string, list, MAP, charsequence). Using these types, the import declaration is n

onRestoreInstanceState to keep some temporary data. [Java]@ OverrideProtected Parcelable onSaveInstanceState (){/** Suppose a client uses this preference type without persisting. We* Must save the instance state so it is able to, for example, keep ve* Orientation changes.*/Final Parcelable superState = super. onSaveInstanceState ();If (isPersistent ()){// No need to save instance state since it's persisten

process name confirms that the same app is under different processes and application is created multiple times. This also illustrates that in multi-process mode, components of different processes do have separate virtual machines, application, and memory space. 3. Serializable and Parcelable interfaceSerializable and Parcelable can complete the serialization of an object, which needs to be serialized

1. Methods(1) serialization is implemented using the serializable interface. Use Bundle.putserializable (Key, object); Here the Objec object needs to implement the serializable interface.(2) Realize parcelable interface serialization. Use Bundle.putparcelable (Key, Object), where object objects need to implement the Parcelable interface.2, the difference between the two:(1) When using memory,

An example of this article is the method of using intent to pass objects in Android programming. Share to everyone for your reference, specific as follows: In the previous article, we introduced the use of intent, such as starting activities, sending broadcasts, inspiring services, and passing some data when using intent. As shown in the following code: Intent Intent = new Intent (this,secondactivity.class); Intent.putextra ("info", "I am Fine"); StartActivity (Intent); When pass

. annotation. suppressLint; import android. OS. parcel; import android. OS. parcelable;/*** @ Description write an object class step: * 1. implement the Pracelable interface * 2. you need to define a Parcelable. creator CREATOR object * 3. at the same time, you need to create an aidl file * @ Author monkey * @ Date 5:22:02 on January 1, September 4, 2014 */@ SuppressLint ("ParcelCreator") public class BookI

Package com. hzhi. my_sax; import java. util. arrayList; import android. OS. parcel; import android. OS. parcelable; public class school implements Parcelable {public static final String tag_name = "School"; public String name; public String code; public ArrayList Package com. hzhi. my_sax; import java. util. arrayList; import android. OS. parcel; import android. OS.