sync notes android

Android learning notes (1) Development Environment establishment, android learning notes Build an Android Development Environment Install JDK1. If you do not have JDK, you can go to the http://www.oracle.com/technetwork/java/index.html here, the next job is to install tips

Android cainiao Study Notes 4 ---- android project structure, cainiao notes Src: Application source code storage directory Gen: Automatically Generated Directory, which stores all files automatically generated by Android development tools. The most important part in the dire

Study android Development notes and android Development notes Recently, I have focused on the source code of several android projects and have some questions. 1: Why do android client games need to enable n threads, and generall

Android pushes learning notes for advanced courses and android learning notes Today, I learned how to process receipt messages on the server side of Android Advanced Course push on MOOC. This course mainly introduces that when the server pushes messages to the client, the c

Android notes, android learning notes 1. Do not pass the int value to the setText function of the textview control, because when you pass the int type, it will assume that it is a resource id. The following error is reported: java. lang. runtimeException: Unable to start activity ComponentInfo {com. example. ndktest/

Android Studio debugging method learning notes, android learning notes(Note: The Keymap of my Android Studio has been set to Eclipse copy.) 1. You can only set the breakpoint to locate the debugging location. Otherwise, the debugging location cannot be found. (Breakpoint can

Android notes: file storage, compression, and deletion, android notes In the past two days, we have improved the image upload code in the optimization project, considering that there may be large 7 or 8 m images, because we need to compress them first. Therefore, the File compression, storage, and deletion operations a

Reading address book learning notes and android learning notes in android 1. When reading the address book at a time, try to read as few attributes as possible, especially when the list is displayed, it will make the loading speed of your list unbearable. We recommend that you load a few attributes first, then, all att

Android basic notes (16)-Service: startService (), stopService (), bindService (), unbindService () Supplement, android learning notes Open door First Second Third Summary Open door You can enable the Service in three cases: if you use the service directly, there is no need to bind it, but if you want to use

Android learning notes ①-Basic installation of android tools, Android Android has been out for a long time, and there are a lot of online tutorials. If you are afraid of forgetting it later, you can learn the knowledge shared by the online experts and record it. If you can h

Android notes-Android architecture and android ArchitectureI. Android system architecture The Android system architecture consists of four layers: Linux kernel layer, system library layer, application framework layer, and applicat

Android cainiao study notes 16 ---- Android project package installation process (Run as Android Application), androidapplication Right-click the project name and Run as Android Appication,Android project package and Installation

Android cainiao Study Notes 30 ---- use Baidu map API for Android (I) preparations and display maps in applications, and android Baidu map api 1. Preparations: Baidu map API is open for free, but you need to apply for API Key: 1) register a Baidu developer account first 2) Enter Baidu open service platform http://devel

Android learning [Android kernel compilation process and error notes], android Kernel Blog: http://blog.csdn.net/muyang_renUbuntu14.04 LTS (requires a 64-bit long-term support version of LTS)Jdk1.8Kernel: android4.0 I. jdk 1. Decompress jdk to obtain the path 2,sudo vim /etc/environment To: PATH="/usr/local/sbin:/usr/

This series is the Reading Notes for reading "Pro android4". It also includes the preparation of online reading materials and my personal experiences. Because smartphones introduce AP (application processor), Android is a personal computer in a sense. It has a complete architecture of desktop computers and uses Linux-based OS stack to manage devices, memory, and processes.

Android NDK notes and androidndk notes **************************************** **************************** **********************************NDK development steps1. Create a project2. Create a JNI directory3. Compile the nativejava Layer Method4. Generate the JNI header file(1) Compile javaNative code(2) Introduce a command javah(3) Add the

the component Management Service constructs a Component object, it verifies that the permission claims of the requesting component match the permissions configuration of the component (if the request component and the implementing component are in the same application, without checking), and throws an exception to prevent this call if the match fails. Android's permission system is not transitive.Permissions can also be called checkpermission function dynamic checksum at run time, without prior

(), secure.android_id); try {if (!) 9774d56d682e549c ". Equals (Androidid)) {uuid = Uuid.nameuuidfrombytes (androidid.getbytes (" UTF8 "));} else {final String DeviceId = ((Telephonymanager) Context.getsystemservice (Context.telephony_service)). Getdeviceid (); uuid = deviceId! = Null? Uuid.nameuuidfrombytes (Deviceid.getbytes ("UTF8")): Uuid.randomuuid ();}} catch (Unsupportedencodingexception e) {throw new RuntimeException (e);} Prefs.edit (). putstring (Prefs_device_id, Uuid.tostring ()). co

functionality of the kernel, and then uses the Dalvik virtual machine on the application tier to support the instruction execution of the Dex file. The key is here, for Windows, the application layer is the application layer, is directly exposed to users and developers of things. But Android is not the same, Android has a virtual machine. For Linux, those things Androi