object can be recreated by reading or deserializing the state of the object from the store.The purpose of serialization for # # #:-Persistence of custom objects in some form of storage;-Transfer objects from one place to another.-Make the program more maintainable.How to serializeTwo ways are described below:
Implement the Serializable interface (which is supported by the javase itself)-This kind of serialization is very simple, only need to implement a serializable interface can be im
Soon after the contact with the table, I will be studying the development of the table for a long time afterwards. Just to realize your own ideas.1. First of all to say parcelable before you have to say, serializable interface. Read a lot of tutorials, said activity value transfer process is to first say serializable interface, then the Parvelable interface. Two interfaces similar, what is the difference?The function, efficiency, difference and choice
1. parcelableInterface
Interface for classes whose instances can be written to and restored from a parcel. Classes implementing the parcelable interface must also have a static field called Creator, which is an object implementing the parcelable. Creator interface.
2.ImplementationParcelableIt is for serialization. Why is serialization required?
1) permanently Save the object and save the object's byte sequ
Parcelable interface usage in Android1. parcelable InterfaceInterface for classes whose instances can is written to and restored from a Parcel. Classes implementing the Parcelable interface must also has a static field called CREATOR, which is an object Implementin G The Parcelable.creator interface.2. the implementation of p
1. Parcelable interfaceInterface for classes whose instances can is written to and restored from a Parcel. Classes implementing the Parcelable interface must also has a static field called CREATOR, which is an object Implementin G The Parcelable.creator interface.2. The implementation of Parcelable is for serialization, so why Serialize?1) Permanently save the ob
Turn from:Parcelable interface usage in Android1. parcelable InterfaceInterface for classes whose instances can is written to and restored from a Parcel. Classes implementing the Parcelable interface must also has a static field called CREATOR, which is an object Implementin G The Parcelable.creator interface.2. the implementation of parcelable is for serializati
specified Java object on a JVM that is not running on the JVM or on other machines.
4. What is the difference between Serializable and Parcelable in Android? The two are used to support serialization and deserialization. The biggest difference between the two is that the storage media is different. Serializable uses IO to read and write data on the hard disk, while Parcelable directly reads and writes da
Title:android.os.Parcelable document self-translation date:2014-12-05 09:16:06TagsMany of the known indirect subclasses of the Android.os.Parcelable interface are not listed here:Class OverviewInterface for classes whose instances can is written to and restored from aParcel. Classes implementing the Parcelable interface must also have a staticField called CREATOR, which is an object implementing the Parcelable.creatorInterface.The interface is used fo
Use of the Parcelable interface in Android, androidparcelable
Serialization is very common during development. For example, you want to save the object to a local disk or transmit it over the network. There are two methods to implement serialization: one is to implement the Serializable interface, and the other is to implement Parcelable.
Differences between Serializable and
Android provides a new type: parcel. This class is used as a container to encapsulate data. The encapsulated data can be transmitted through intent or IPC. Except for the basic type
Only the classes that implement the parcelable interface can be put into parcel.
Parcelable implementation key points: three things need to be implemented
1) writetoparcel method. This method writes the class data to the extern
Introduction of Android serializationWe already know that the object needs to be serialized when Android uses Intent/bindler to transmit data to the IPC.Java has already provided the serializable interface for serialization and is very simple to use, primarily for object persistence and for network transmission of objects. The serializable overhead is large because the serialization and deserialization process requires a lot of I/O operations.Android provides the
For Android, the transfer of complex types, mainly the conversion of their own classes to the underlying byte array, the activity between the data passed through intent implementation. There are two main ways to implement an serializable interface, or to implement an Parcelable interface, for Android serialization objects. Implementing the Serializable interface is JavaThe SE itself is supported, and Parcelable
Bundle. putParcelable can be used to transmit objects, but the class of this object must implement the Parcelable interface.
The following is a simple example of passing objects between activities.
Parcel serializes parameters, and serializes class objects into a binary stream in full bits to improve transmission efficiency.
Parcelable class. The main class, that is, the class of the object to be transmi
Parcelable Interface:Interface for classes whose instances can is written to and restored from a Parcel. Classes implementing the Parcelable interface must also has a static field called CREATOR, which is an object Implementin G The Parcelable.creator interfaceAn instance of a class can be written to and stored in a package interface. the class that implements the Parce
Android master path: Serializable and Parcelable, two methods of Intent passing objects in Android
In Android, two methods are passed: Serializable and Parcelable.
Serializable is supported by J2SE. Parcelable is unique to Android.
Use Cases and differences:
1) when using memory, Parcelable has higher performance than
[Switch] Android Parcelable and Serializable, androidparcelable
This article mainly introduces the functions, efficiency, difference and selection of Parcelable and Serializable. For details about Serializable, see the advanced understanding of Java serialization.
1. Role
Serializable is used to save the attributes of an object to a local file, database, network stream, or rmi for data transmission. Of cou
When Will serialization be used?
1. Permanently Save the object and save the object's byte sequence to a local file.
2. Passing objects in the network by serializing objects
3. Passing objects between processes through serialization
In Android, it can be used to transmit complex types in the activity, mainly to convert its class into a basic byte array. In Android, the activity transmission mainly relies on the intent class, the efficiency of data transmission within the intent class still needs
1) Why implement the Parfcelable interface for passing objects in intent?A, when using memory, parcelable than serializable performance, so it is recommended to use the Parcelable class.B, serializable generates a large number of temporary variables when serializing, resulting in frequent GC.Note: parcelable cannot be used in situations where data is stored on di
This paper mainly introduces the function, efficiency, difference and choice of parcelable and Serializable, and introduces the advanced knowledge of Java serialization in the introduction of serializable.1. functionSerializable's role is to save the object's properties to local files, databases, network streams, RMI for easy data transfer, which can be within a program or between two programs. The Android Parcela
This paper mainly introduces the function, efficiency, difference and choice of parcelable and Serializable, and introduces the advanced knowledge of Java serialization in the introduction of serializable.2. UseSerializable's role is to save the object's properties to local files, databases, network streams, RMI for easy data transfer, which can be within a program or between two programs. The Android Parcelable
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