Android

Android provides five storage methods: file, sharedPreference, network, SQLite, and ContentProvider. SQLite is a lightweight database with the advantages of independence, isolation, cross-platform, multi-language interface, and security. It is

In fact, there are not many Messenger actually used in actual use, but the examiner still wants to examine your basic skills during the interview. Now let's take a look at the use cases of Messenger. If you need your Service to communicate with a

A strange problem found when testing an APK we developed (using a libevent-2.1.3-alpha as a network library) that sometimes reported a Non-recoverable name resolution failure error. Occasionally reported an error in the company. Later, the program

First, you need an entry before setting the reminder, for example, in The onclick event. In android, it is actually very simple to use the alarm clock. You only need to tell the system when you want to be reminded, and then need a broadcast receiver

Android provides a small tool named meminfo to help the application analyze its memory usage. In addition, the memtrack HAL module is added in 4.4. The SoC vendor implements the memtrack module, let meminfo Get Some GPU-related memory allocation

I always wanted to write a Camera example from the HAL layer to the application layer, usb camera cannot be used on android4.0, so I decided to write a usb camera and coms on my own. The basic principle is the same. v4l2, but the source code data

This article describes the basic knowledge and related solutions for implementing push methods in Android. The application scenarios of the push function in mobile phone development are getting started. If we don't talk about anything else, the news

As a version control tool, Git is often used in our work, especially in mobile development. Let's take a look at Git: Git is a distributed version control software. It is a distributed version control system written by Linux author Linus in C. If

Wifi Nic status1. WIFI_STATE_DISABLED: WIFI Nic unavailable2. WIFI_STATE_DISABLING: the WIFI Nic is being disabled.1. WIFI_STATE_EWNABLED: WIFI Nic available1. WIFI_STATE_ENABLING: the WIFI Nic is on.1. WIFI_STATE_UNKNOWN: Unknown Nic statusChange

Providers include global system-level setup device preferencesIntent: intent Intent = new Inetnt (Setings );Setings: 1. ACTION_ACCESSIBILITY_SETTINGS: // The auxiliary function interface for redirecting to the SystemIntent intent = new Intent

  Following the previous Android WebView FAQ and solution summary, we summarized some common problems for webview processing. This time we will talk about the touch event in webview: Sometimes in development, we need to add the webview touch event

If you get tired of bringing your own desktop to your mobile phone and think it is monotonous and not easy to use, try DX Home, an Android desktop software launched by Dr. Lee Kai-fu's innovation workshop ). By default, the Android system features a

Mobile phone vibration massagerIt makes massage anytime, anywhere. I don't work very well on Monday, I'm sleepy in the afternoon, I 've been sitting on my computer for too long, and I feel so cool to relax myself? You said that the company does not

Fortunately, some practical guidelines can help us move in the right direction. In this article, we will take a look at the mistakes that startup teams may make in creating product experiences and how to avoid these problems. Why should the startup

Step 1: Create a new project.Open the Unity3D software and it will automatically load the "Bootcamp Demo" project file we opened last time. Don't worry about it. After the software is opened, click -->. In the pop-up dialog box, find and enter the

One of the main reasons why everyone is very interested in the Android mobile operating system is that it is an open-source operating system. You can make simple changes to the system to meet your specific needs. Next we will introduce in detail how

Android is an important part of Google's enterprise strategy. This strategy has greatly improved Google's market in the Chinese mobile industry and greatly promoted the competitiveness of the entire mobile industry, the following describes the

Clear cache data for large applications 1. By clearing the cached files of the program, the released memory space will surprise you 2. Choose Settings> Applications> Manage applications. 3. Press the Menu key and select the "sort by size" option

What is the Action Bar? For a long time, developers have been designing functional title bars for their Android applications. Android 3.0 officially introduced the Action Bar component, which standardizes the application navigation design, some new

  During Android network application development, it is often necessary to determine whether the network connection is available. Therefore, it is often necessary to listen to changes in the network status. For android network status monitoring,