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(...) _ android_log_print (ANDROID_LOG_WARN, LOG_TAG, __va_args __)# Define LOGE (...) _ android_log_print (ANDROID_LOG_ERROR, LOG_TAG ,__ VA_ARGS __)# Define LOGF (...) _ android_log_print (ANDROID_LOG_FATAL, LOG_TAG, __va_args __)# Ifdef _ cplusplus}# Endif# Endif/* _ JNILOGGER_H _*/You can download the above header file to unify the usage differences in two different environments. In addition, do not forget to add the application to the class library in your

This article describes the Android programming implementation of simple UDP Client. Share to everyone for your reference, specific as follows: The code is debugged inside the 4.2.2 through 1. Remember to add permission Note: After Android 4.0, you can't communicate with the main thread, or you will throw an exception. 2. Code Mainactivity.java:

This article describes the implementation of the Android programming TCP, UDP client communications. Share to everyone for your reference, specific as follows: In the process of Android development, inevitably, to develop TCP/UDP communication program, the following two pieces of code, respectively, introduced the TCP/UCP through an example: Code One TCP commun

The example of this article describes the Setup method of the Android programming alarm clock. Share to everyone for your reference, specific as follows: Alarm clock is the most common in life, in Android can be alarmmanager to implement the alarm clock, Alarmmanager class is designed to set at a specified time to complete the specified time. Alarmmanager will e

This example describes the Android programming input event process. Share to everyone for your reference, specific as follows: The input device is encapsulated by the Eventhub. The input device driver provides some device files for the user space application, which is placed inside the/dev/input. Eventhub scans all device files under/dev/input and opens them. BOOL Eventhub::openplatforminput (void

If you do not know the role and Setup of Android NDK, you can refer to the role and Setup of Android NDK. Today, this article is based on the Android NDK development environment that has been set up, let's take a look at the implementation of NDK programming "Hello Jni. What are the basic knowledge required for

This example describes four startup modes for activity in Android programming. Share to everyone for your reference, specific as follows: Activity Initiation method has four kinds, namely: StandardSingletopSingletaskSingleInstance You can set up a corresponding startup mode for the activity based on actual requirements, thereby avoiding problems such as creating a large number of duplicate activity. Set

Experiment three Android Programming Course: Java Programming Class: 1652 Name: Kong No.: 20165208 Instructor: Lou Jia Peng Experimental Date: 2018.5.14 Experiment Name: Android Programming Test requirements: Students who do not have a Linux base are advised to star

Android network programming to get JSON on the networkPlease respect other people's labor results, reproduced please specify the source: Android network programming to get JSON on the networkServer-side support is required to get the JSON on the network.First, create server-side:Server-side project structure:Server-sid

When we learn and use the Android network programming, we touch only the upper layer protocols and interfaces such as Apache HttpClient or Android's own httpurlconnection and so on. We also need to learn more about the underlying implementations of these interfaces, which requires that we understand the network communication layer and that the network communication layer has to speak of the Iso-osi seven-la

In the "Android Network Programming" series, the previous Java communication is described in the bottom of the general description, before we understand the TCP/IP communication family Architecture and its principles, then we begin to understand the TCP/IP protocol layer based on the socket abstraction layer. This article will give us a clear understanding of and learn to use sockets. What is a socket? And

6th. Android Driver ProgrammingBy introducing this chapter device driver, character device driver programming,GPIODriver Instances and4*4scanning keyboard drivers and other content, master theAndroidDrive programming. AndroidKernel kernel module programming includes device drivers and kernel modules, module-related com

ImageView: Image loading, rendering, and processing Lazyload: Picture Lazy loading Crop: Picture cutting and beautification Carousel: Show blocks/pictures with slider/carousel Waterfall: Display blocks/pictures in Waterfall flow mode WebView Native Interaction: Local interaction Js-patch (IOS) Dvisual: Drawing and visualization of data Graphics: Major drawing-related Chart: Graph-related

This example describes the global variables in Android programming. Share to everyone for your reference, specific as follows: Now every day is busy, and a busy, put the notes on the back, recently in the writing program, suddenly to use the global variable, in the previous way, wrote a class, and then the variables are declared as static variables, and then as a global variable to use, but when the activi

This example describes the SDcard code for Android programming. Share to everyone for your reference, specific as follows: 1. Detect SDcard is available: public static Boolean sdcardisavailable () { String status = Environment.getexternalstoragestate (); if (!status.equals (environment.media_mounted)) {return false; } return true; } 2. Obtain the program on the SD card CAHC

This example describes the implementation of blacklist in Android programming. Share to everyone for your reference, specific as follows: Description: Because the phone hangs up the Android API is not open to the outside, you need to use the method of reflection to get the call service. 1. Copy "Aidl" files from the Android