fips parcel

1.Importjava.util.List;ImportAndroid.os.Parcel;Importandroid.os.Parcelable;/*** 1) Writetoparcel method. This method writes the data of the class to an externally supplied parcel. * 2) Describecontents method. return directly to 0. * 3) Static parcelable.creator@authorJL*/ Public classViewPointImplementsparcelable {PrivateString V_name; PrivateListv_picture; PrivateListv_description; /*** The sequence of read in this step should be consistent with the

, where the incoming IBinder object is saved in Mremote } Public IBinder GetService (String name) throws RemoteException { Parcel data = Parcel.obtain (); Parcel reply = Parcel.obtain (); Data.writeinterfacetoken (iservicemanager.descriptor); Data.writestring (name); Mremote.transact (get_service_transaction, data, reply, 0);//finally use IBinder's transact to transm

The previous response briefly describes the principle of inter-process transfer of class objects. before talking about parcel, we should first talk about something: ibinder.What is ibinder? First, you must understand that android remote calls (cross-process calls) are implemented through ibinder. The following is a translation of Android development documentation.Ibinder is the basic interface of remote objects and is the core part of the lightweight

value to the parameter. If this parameter is not passed, the default value is used. DefF (a, B, c = 10):PrintA, B, CF (3, 2)F (3, 2, 1) When function f is called for the first time, we do not have enough values. C is not assigned a value, and C uses the default value 10. When the second function is called, C is assigned a value of 1 and the default value is no longer used. 3. Packing location transfer and packing keyword transfer: When defining a function, we sometimes do not know

is no different from the normal service class, but the returned ibinder object is special. It is a binder that implements the aidl interface. Next we will discuss the passed data bean-person class, which is a serialized class. Here we use the parcelable interface for serialization, which is a serialization class provided by android that is more efficient than serializable. Parcelable needs to implement three functions: 1) Void writetoparcel (parcel D

() {return userage; } public void Setuserage (int userage) {this.userage = Userage; } public String Getuserhome () {return userhome; } public void Setuserhome (String userhome) {this.userhome = Userhome; } Private String Userhome; @Override public int describecontents () {return 0; } @Override public void Writetoparcel (Parcel dest, int flags) {dest.writestring (This.userid); Dest.writestring (This.username); Dest.wri

Runnable Focus on The Implementation of The RILReceiver thread [IN RILReceiver: run ()] [Java] public void run (){Int retryCount = 0;Try {(;;){LocalSockets = null;LocalSocketAddress l;Try {S = newLocalSocket ();L = newLocalSocketAddress (SOCKET_NAME_RIL,LocalSocketAddress. Namespace. RESERVED );S. connect (l );} Catch (IOException ex ){//...}RetryCount = 0;MSocket = s;Int length = 0;Try {InputStreamis = mSocket. getInputStream ();For (;;){Parcel p;Le

. stub. proxy (obj) ;}@ Override public android. OS. IBinder asBinder () {return this ;}@ Override public boolean onTransact (int code, android. OS. parcel data, android. OS. parcel reply, int flags) throws android. OS. remoteException {switch (code) {case INTERFACE_TRANSACTION: {reply. writeString (DESCRIPTOR); return true;} case TRANSACTION_login: {// 1. the login request is executed this. login (); data.

By default, Aidl supports java basic types (int, long, boolean, etc.) and (String, List, Map, CharSequence ), how can I implement a custom type? To pass a custom type, first make the custom type support the parcelable protocol. The implementation steps are as follows: 1> the Parcelable interface must be implemented for the custom type, and implements the public void writeToParcel (Parceldest, intflags) method of the Parcelable interface. 2> the custom type must contain a static member named CREA

Android offers a new type: Parcel. This class is used as a container for encapsulating data, and the encapsulated data can be passed through intent or IPC. Except for the base type, only classes that implement the Parcelable interface can be placed in parcel. The Android platform contracts data definitions that can be passed through the process communication (IPC) mechanism, which must implement the Parcela

Original: I am a thread (revision)First newborn calfI was a thread, and I was born with a number: 0x3704, then led to a dim room where I found a lot of companions who were exactly like me.My companion 0x6900 for a long time, he said to me with the vicissitudes of life: "Our thread of destiny is to deal with the package." After finishing the package, you have to come back here soon, or you may never come back. ”My face ignorant, "parcel, what

I was a thread, and I was born with a number: 0x3704, then led to a dim room where I found a lot of companions who were exactly like me.My companion 0x6900 for a long time, he said to me with the vicissitudes of life: "Our thread of destiny is to deal with the package." After finishing the package, you have to come back here soon, or you may never come back. ”My face ignorant, "parcel, what parcel?" ”"Don't

can be used to read content from the raw and assets directories of the Android resource directory, such as: gefilefromassets (context context, String fileName) get asset s directory under a file content Gefilefromraw (context context, int resId) to get the raw directory of a file content source code visible Resourceutils.java, more methods and more detailed parameter introduction visible r Esourceutils Api Guide.10, StringUtils The String tool class, which can be used for common string operati

First, Parcelable class (Android Exclusive)Summary : parcelable is an interface.role : Is the serialization interface provided by Android, which implements serialization and deserialization operations.Second, cross-process useStep One: Create the Book Class inheritance Parcelable interface Public classBook implements parcelable {PrivateString Mbookname; Private intMbookid;/** * Prepare: Create book class and inherit Parcelable interface*/ PublicBook (intbookId, String bookname) {Mbookid=book

the original rational knowledge.Binder IPC Communication, Binder is the medium of communication, parcel is the content of communication. method during a remote invocation, its parameters are packaged in parcel form to be passed. IBinder object is no exception, we look at the Parcel Class Writestrongbinder () (Because the Java layer and native layer method is the

can be seen.10, ParcelutilsThe Android Parcel tool class, which can be used to read or write special types of data from parcel such as:Readboolean (Parcel in) Read Boolean type data from PacelReadhashmap (Parcel in, ClassLoader loader) read map type data from PacelWriteboolean (Boolean B,

Location PassWe've made arguments to the function when we define the function, but it's just a superficial transfer of position .Exampledef sum (a,b,c): d = a+b+c return dprint(sum ()When the function sum is called, the A,b,c is passed to theKeyword deliveryKeyword passing is a parameter passed according to the name of each parameterPrint (SUM (c=3,b=2,a=1))Keywords can be used in combination with location passing, but the positional parameters are before the keyword argumentPrint (SUM (1,

parameter using the form a=19. If the parameter is not eventually passed the value, the default value is used: Take a look at the following example:Note: It is not output 2 4 10, because if a parameter has a default value, subsequent arguments must also have a default value, otherwise there will be an error. Parcel PassWhen defining a function, we sometimes do not know how many arguments are passed when invoked. At this point, the