Mobile Develop

Today's file Manager recursive recursion is the way the method calls itself a few lines of code function is very powerful.Determine if it is a folderBOOL isdir = NO;Nsfilemanager *FM = [Nsfilemanager Defaultmanager];if ([FM Fileexistsatpath:filepath

Using ADT to develop a new Android app, select the supported SDK version if less than one (Android3.0) will report the following error.Error:error Retrieving parent for item:no Resource found that matches the given name ' Theme.AppCompat.Light '.The

Project Catalogue1.AppDelagate Storage Appdelagate Class (Application Class)2.Controllers holds the view controller under the MVC design idea.3.View storing a custom view under MVC thought4.Models storage Models class under MVC design idea5.Helpers

1. JNI development requires an external library, which is placed in the Libs/armeabi directory at the end of the package, but Ndk-build updates the Libs/armeabi directory at each compile time, allowing the external library to be deleted. It is

#import"ViewController.h"#import"SecondViewController.h"@interface Viewcontroller () @property (retain, nonatomic) Iboutlet Uitextfield*TextField, @end @implementation viewcontroller- (void) viewdidload {[Super viewdidload]; //additional setup after

1. First describe a knowledge point, usually we show that the layout file XML is as follows:Setcontentview (R.layout.activity_main);In fact every XML layout file is like a balloon, we can use View.inflate (context context, int resource , viewgroup

#import "ViewController.h"@interfaceViewcontroller () {Nsurl*_url; Nsurlconnection*_connection; //file read/writeNsfilehandle *_filehandle; //download File save pathNSString *_filepath; //file True Size Long Long_expectsize; //the size that has

1. Surfaceview:complete the quick switching of the interface within the unit time (the game interface is fluent).We know the general view before, only in the main thread inside the display, the main thread to update the UI. However , Surfaceview can

download method See my other blog: http://blog.csdn.net/maosidiaoxian/article/details/416807692014-12-24 Update: 5.0.1 source has been uploaded.This download is the source of the 5.0.0_r7, download to 99% when the following issues encountered:[Plain]

1. Solve the problem that Headerview does not scroll with the cellSolution: Myheaderview The view you created for yourself on Tableheadview, self.tableview.tableheadview=myheaderview;2. Remove TableView Redundant form-line solution:

When an Android application contains multiple activity, to completely exit the Android application, you want to destroy all the activity, the following is an online spread of the more classic perfect way:First, you define a class that inherits

iOS Development UI Chapter-MVC from the gradual optimization of codeFirst, the requirementsRequest to complete the following small application.Two or one steps to optimize your codeNote: During the development process, the optimization process is

iOS Development multithreaded article-Multithreading simple introductionI. Processes and Threads1. What is a processA process is an application that is running in the systemEach process is independent, and each process runs within its dedicated and

At the beginning of the two sessions, the first time I heard about the "Internet +" plan, I was very excited about it. My personal understanding is: The essence of "Internet +" is to the traditional industry and demand for both sides of the

Mobile End HTML5 Audio AutoPlay failure problemSince the automatic play of the audio or video in the Web page will cause users some disturbing or unnecessary traffic consumption, so the Apple system and Android system will usually prohibit the

Marquee Effect Layout codestart-ellipses appear at the beginning end-ellipses appear at the end middle-ellipses appear in the middleThe marquee-is displayed in the form of a marquee--android:marqueerepeatlimit=

Some special properties of the GridView:1.android:numcolumns= "Auto_fit" //gridview The number of columns is set to Automatic2.android:columnwidth= "90DP" //width of each column, which is the width of item3.android:stretchmode= "ColumnWidth"//Zoom

Apple's developer account limit developer certificate can only have 5, we develop the process encountered more than 5 people need to debug the real machine situation, how to solve this problem?There are two ways to solve the problem:1. Revoke the

iOS Development UI Chapter-button BasicsA simple explanationIn general, when you click on a control, the corresponding response is the buttonThe function of the button is more, can display the text, but also can display the picture, can adjust the

Data storage in AndroidData persistence means that the instantaneous data in memory is saved to the storage device. There are three main ways in which Android systems are designed to simply implementData persistence, which is file storage,