Android

Android cannot use Json-lib-2.4-jdk15.jar, to use its own Org.json pack Use the following methods: public static int getplatforminfolist (String json){int count=0;try {Jsonarray jarr=new Jsonarray (JSON);int length = Jarr.length ();for (int i =

Hide requirements for application functionality Applications on Android devices are divided into system applications and user-installed applications. The system application can not be deleted, but some users do not use the system and can not be

Android SDK: SDK (software Development Kit) software Development Kit. A collection of development tools that are used by software development engineers to build applications for specific software packages, software frameworks, hardware platforms,

Notification is the meaning of the notice, Andong refers to the notice bar, generally used in the telephone, sms, mail, Alarm bell, in the mobile phone status bar will appear a small icon, prompting users to deal with this newsletter, when the hand

A lot of factory classes are used in Android, such as threadfactory to create abstract runnable. The following is a simple example to learn about factory patterns. First, the role Factory mode (Factory method): Defines an interface for creating

Computer too card, finally endure not to reload the system, so it is necessary to configure environment variables. Write it this time. Install the JDK first or use a compressed package. Too lazy to reload. It's just a bag from the last

Question one: Why the device tree is needed. In the current widely used Linux kernel 2.6.x version, for different platforms, different hardware, there is often a large number of different, poor portability of the board level Description code to

how Android listens for pasteboard content Recent project to do the monitoring of the Paste Plate window function small remember. In fact, the idea is very simple, write a service running in the background, through the Clipboardmanager service to

Platform Information: Kernel: Linux 2.6.35 android:2.3.1 CPU: Samsung S5PV210 Speaking from the EARLYSUSPEND.C, suspend is invoked after all the driver early wake_unlock are executed in early suspend, and in the Wake_unlock function, if the system

There are two functional points here.1, download2, download After the pause can be downloaded in the location. So the tentative technology involved is that HTTP network requests, multithreading, SQLite database cache Download Locations. Process flow

Recently made a Apollo to achieve MQTT and mobile phone side of the push, summed up the experience, Apollo is an open source Mqtt proxy Server in Apache with the following address http://activemq.apache.org/apollo/ 1. Configure the environment,

Solve the Problem of cropping com. android. camera. action. CROP and intent. putExtra ("return-data", true );, Recently, I was uploading an image. before uploading the image, I needed to crop the image. When I encountered a pitfall, I ran normally

Android Remote Desktop Assistant (B1185) for Android P Developer Preview, androidb1185 Android P's Developer Preview version has been released. The App compatibility changes section emphasizes "the platform restricts The use of some non-SDK methods

Android Studio: version number of the Support Library dependent package, androidlibrary When we useRecyclerViewIf you want to use a specific version, how can you know the version number? If you have used this library in your notebook, it will be

Use of the ADB Tool, ADB is the debugging Bridge of Android Debug Bridge. It can be used to Debug and manage the statuses of Android devices and device simulators. For example, run Shell on Android devices and transfer files between computers and

Activity component security (I), activity component For Activity component security, as an android developer, pay attention to the following points during daily development:-Activity Access Control-Activity hijacked This article will share with you

OkHttp automatically refreshes global expired tokens and okhttptoken# Problems: The currently developed App encounters a problem: When you request an interface, the interface reports an error because the token has expired.However, the product

Detailed description of MVP Framework Design and mvp framework Model is the Model layer of MVP. In MVP, I usually define features. In MVC, the main part of the Model lies in the definition of Domain. Although mvc is often clear during

Android Studio Activity Intent crash Toolbar, androidintent Today, I wrote the login registration page. After clicking the "register" button on the login page, the software suddenly crashed and crashed. As a newbie, I can only search for the

Android studio installation and configuration, and androidstudio ConfigurationAndroid studio installation and configuration 1. First download the Android studio installation package, which can be MB in bytes. The installation package does not