Mobile Develop

Exceptions are divided into two types:1. Compile-time exceptionsWhen a compile-time exception is thrown, it needs to be processed for declaration, otherwise the compilation does not pass2. Run-time exceptionsCompile-time not detected, the runtime if

First, prefaceUnconsciously I have been doing a few years of development, by remembering just came out of work when I feel I can be a good, now think back up feeling well ignorant. The more you know, the less you will find.If your knowledge is a

First stage: Java Object-oriented programming1.Java basic data types and expressions, branching loops.Use of 2.String and stringbuffer, regular expressions.3. Object-oriented abstraction, encapsulation, inheritance, polymorphism, classes and objects,

1. Layout filesScrollViewxmlns:android= "Http://schemas.android.com/apk/res/android"Android:layout_width= "Match_parent"Android:layout_height= "Match_parent"> LinearLayoutAndroid:layout_width= "Match_parent"Android:layout_height=

Recently in the call Android system camera function, will take photos in the display on the ImageView, in the simulator is normal, can go to the real machine, dead and alive display, and later through the verification of the multi-party finally

Forward to: http://www.cnblogs.com/wendingding/p/3770052.htmliOS Development UI Chapter-uiwindow Brief IntroductionFirst, Brief introductionUIWindow is a special kind of uiview that usually has only one uiwindow in an app.After the iOS program

hexadecimal colors in iOS are converted to Uicolor#pragma mark-color convert hex color in iOS to uicolor+ (Uicolor *) colorwithhexstring: (NSString *) color{nsstring *cstring = [[col or Stringbytrimmingcharactersinset:[nscharacterset

Unify the "Back" button style for all pages of the appIf you want to uniformly set the return button style for all the app's pages, first customize the Wznavigationcontroller class to inherit the Uinavigationcontroller class, and then override

Before Xcode6, create a new project Xcode automatically creates a "project name-prefix.pch" file under the supporting Files folder, which is also a header file, and the contents of the PCH header file can be shared and accessed by all other source

Because of the project needs, the HTTPS forced handshake has been studied, the sharing processing method is as follows:I. Problems and needsproblem: The Access Party may have HTTPS certificate authentication for the same domain name, and under the

Topic:When the network is bad, how to optimize the load picture of the network when stalling?Ideas:Consider both the loading of the picture itself and the storage of the phoneWorkaround: 1. Find a replacement for an existing picture formatIn a

Recently started Android development, because never used Java before, even the basic grammar to start from scratch, so not very smooth. There was an issue with how to reference jar and so files when trying to use the Baidu speech recognition engine.

An analysis of the feasibility of the US-group takeaway app1 Introduction1.1 Purpose of writingYoung people in pursuit of fashion, fast, so the takeaway industry has a broad consumer groups, the rise of group purchase, but also promote the people's

OverviewAndroid event delivery mechanism is also an important piece of the Android system, there are many types of events, here mainly discusses the TouchEvent event in the framework layer of the transfer processing mechanism. Because for app

OverviewFrom the operating system point of view, memory is a piece of data storage area, belonging to the operating system can be scheduled resources. In modern multitasking (process) operating systems, memory management is particularly important,

1, Nagios features: Monitor the status of the server, powerful alarm function, the drawing function is weak need to use other plug-ins to implement or integrate other monitoring software.2. Five states of Nagios: OK warnning CRITICAL UNKNOWN

With regard to custom attributes, we use a lot more time to customize the view, in fact, the custom attribute has some other magical uses.Here is an example of using a custom attribute to replace the background of the application globally. 1.Android

Linux hostsAndroid SDK installation ignores JDK installation ignore Hudson install ignoreGradle Installation1: Download the corresponding gradle (here is Gradle-2.10-all.zip) 2: Unzip gradle-2.10-all.zip to the corresponding directory 3: Set the

In Android common programming, handler is often used when asynchronous operations are performed and the returned results are processed. In fact, this can lead to memory leaks, where in the code can lead to memory leaks, and how to cause memory leaks?

HTTP principle What is a URL Several common protocols in URLs What is the HTTP protocol What does HTTP do? Why to use the HTTP protocol Introduction to the communication process of HTPP protocol HTTP request