Mobile Develop

View Click to modify the background.Change background when pressing, resume background when lifting, rely on state_pressed.After successful landing, you are forbidden to click and change backgrounds, depending on state_enabled.selector xmlns:android=

1. What is JNI?Java Native Interface (Java Native Interface)For example, method declaration:Public final native class getclass (from source Object.java)The method above does not have a method body, but it is not an abstract method, it is a concrete

We do this when often logged in authentication using Toast Prompt user input error, etc... A lot of people are directly usingToast.maketext (loginactivity.this, "Please contact the Estate property Management", Toast.length_short). Show ();However.

I as an Android small white, first to deal with Android is its IDE (Integrated development environment, integrated development environment).I remember the first time from the library borrowed this Android books, and then is a variety of download

Shortcut keysFor many of the students who turn to eclipse, the most important thing is the shortcut key section, studio default shortcuts and eclipse is very different, but studio is a powerful place to set up you can always use the Eclipse style

In the previous article, "The Path of Android Project refactoring: Architecture", the project's architecture has been briefly explained, and the project is divided into four levels: Model layer, Interface layer, core layer, interface layer. Among

Basic use methods of DatePicker and Datepickerdialog1. What is DatePicker? Select the date of the control. DatePicker DialogCreating a datepickerdialog--is different from other controls and does not need to be dragged out of the XML file1. Declare a

Recently deployed on the Linux server with the play project through the Activator Dist development model, the localhost:9000 appears Your new application is ready .To this I thought together normal. However, when you access a page that has write

Detailed Error Description:java.lang.reflect.InvocationTargetExceptionAt sun.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)At Sun.reflect.NativeMethodAccessorImpl.invoke (nativemethodaccessorimpl.java:62)At

Uiimageview Official document (https://developer.apple.com/library/ios/documentation/UIKit/Reference/UIImageView_Class/ index.html#//apple_ref/doc/uid/tp40006889) There are instructions insideThe relevant properties are as

The ADB has a limitation, which can also be said to be a bug. When the number of simultaneous processes running on the phone is greater than 64 o'clock, the ADB is thrown. The deeper reason is that the maximum number of handles supported by the

At work, Android pits a lot, part of the Android source itself logic traps,But many are the pits that are buried by themselves and their colleagues for various reasons.Improved object-oriented capability and proper implementation in code can greatly

Android phone has its own camera and library, we do the project sometimes used to upload images to the server, today did a project to use this feature, so put my code down and share with you, the first blog hope that the great God many

Summary of common errors and warnings in development (36)Xcode 7 SecurityIf you're using Xcode 7, you should get a Snow white screen, and we're hit by a bug. This is because access to non-HTTPS addresses is no longer supported by default in the IOS 9

The netstat command is used to display statistics related to IP, TCP, UDP, and ICMP protocols, and is typically used to verify the network connectivity of each port on the machine. Netstat is a program that accesses the network and related

First, the definition Generator pattern: Separates the construction of a complex object from its performance, allowing the same process to create different manifestations. The builder pattern includes two important roles: Mentor

Project Summary of the nine Gongge layout bilingual implementationNine Gongge layout Create child controls Implementation of version Objective-c 1 2 //Button3 //Data4Nsarray *images =

One of our small applications, using the Baidu Map API to obtain the user's coordinates after using Localstorage to do the next cache, test on-line after the operation of the student Feedback page data pull,The test did not find the problem, and 2

[reprint] "resources" latest Android SDK_API_ Development Kit _ Offline Package _ Download Android SDK Development is not the same, due to Google server, the download of Android SDK in China is very slow, if you want to download all of the Android

Network communication1, ASIHTTPRequest This is a classic old library, fully functional and powerful, but has stopped updating for a long time (iOS5.0 stopped updating, but I recently see this project on GitHub new changes). There are a few minor