android 1 com mod

Interpreting Android ContentProvider (1) CRUD operations, androidcrud This article is translated from the official android documentation and tested by yourself. Content providers can manage structured datasets, encapsulate data, and provide a data security mechanism. Content providers is a standard interface for cross-process data sharing. Chinese can be called

AIDL of Android IPC (1) IPC is short for Inter-Process Communication, that is, cross-Process Communication. In Android, there are multiple methods of cross-process communication, suchFile Sharing, UseContentProvider,Broadcast, AndSocket. In complex cases, the two methods are commonly used:MessengerAndAIDLThe underlying implementation of Messenger is AIDL. First,

implementation roles */ PrivateSweetword; PublicGIRL (sweetword ){ This. Sweetword = sweetword; } PublicSweetword getsweetword (){ ReturnSweetword; } Public VoidSetsweetword (sweetwordSweetword ){ This. Sweetword = sweetword; } Public Abstract VoidSayhi (); } Create an implementation role: PackageCom. diermeng. designpattern. bridge;/** Implemented roles*/Public InterfaceSweetword {Public VoidPraise ();} RefinedRole action) role:

From: http://wallage.blog.163.com/blog/static/17389624201032141818282/ JNI is a Java NativeJava Local interface. It allows Java code to interact with code written in other languages. In Android, JNI is provided to allow JavaC language programs can be called in sequence. Many Java classes in Android have native interfaces, which are implemented locally and then re

or files to other applications.You want to allow users to copy complex data from your app into other apps.You want to provide custom search suggestions using the search framework. You need to use Content Providers in the following cases:1. You want to provide complex data or files for other applications;2. You want to allow users to copy complex data from your application to other applications.3. You want to use the search framework to provide custom

uses this model: Exec () replaces the user space of the current sub-process with an executable file. Note that after exec () is replaced with userspace, except for id information such as pid, the fd 0, 1, and 2 indicate the standard input, output, and error output. The fd still retains the original meaning, which enables the Android init process to start init. when the rc service is running, redirect 0,

obtains the thread Message Queue through mQueue = mloue. mQueue. Without Handle, handleMessage (Message msg) {} is used. Only logoff information queues are in the loop, so there is no value for information. While we usually use Handle, but do not declare logoff in the UI thread, because the UI thread itself contains the logoff mechanism by default. We often see "logoff" when reporting errors in this program ". The final work principle is summarized as follows:

directory). Run: $ Javah-JNI com. howfun. Android. antguide. hf2d_jni.hf2d Generate hf2d. h In the current directory. Note that the directory should not be run. Just run it in Bin. Test hf2d. h to $ myproject/JNI/(create this JNI directory) and write hf2d. C as follows: #include 3. Write the Android. mk file and place it in $ myproject/JNI/, as shown below: L

= generateLayout (mDecor); // 4. Get the ContentView container, that is, the region where the content is displayed, mTitleView = (TextView) findViewById (com. android. internal. R. id. title); 5. Set if (mTitleView! = Null) {if (getLocalFeatures () (1 We can see that the basic process of setContentView is simply summarized as follows:

Android custom widget (1) I recently attended a sharing meeting in Jinan. I felt deeply touched by the sharing spirit of the great gods. I would like to share some good things with you. I cannot be a code farmer who only moves bricks to become a real programmer. Of course, I am a Yuan programmer. There are three types of programmers: Junior programmers, intermediate programmers, and senior programmers, I ca

Android adapter tutorial (1) Recently, when developing Android, I found that ListView is undoubtedly a frequently used component, but I have to mention the adapter when it comes to ListView. I plan to use several instances, from a simple perspective, I will explain the use of the adapter carefully. Although this is not a profound question, I still hope to bring y

Import Java. Io. file; Import Java. Io. fileoutputstream; Import Java. Io. ioexception; Import Java. Io. inputstream; Import Java. Io. outputstream; Import Android. content. context; Import Android. database. SQLite. sqlitedatabase; Import Android. database. SQLite. sqlitedatabase. cursorfactory; Import Androi