Mobile Develop

Application background: There are two list boxes in the page, you need to move the elements of one of the list boxes to another list box.The basic idea of realization:(1) Write the Init method to initialize two list boxes;(2) Call the Init method

AndroidWhen SQLite inserts the data by default a statement is a transaction, so if there are tens of thousands of data inserted, then you need to do tens of thousands of insertions, operation speed imaginable.　　So when inserting data into Android,

Sqlite3 supported data types: NULL, INTEGER, REAL, TEXT, BLOBBut in fact, Sqlite3 also accepts the following data types:smallint a 16-bit integer.Interger a 32-bit integer.Decimal (P,S) p exact value and S-Size decimal integer, the exact value p is

Since IOS6, Apple has introduced the Storyborad technology to replace the nib, so that the amount of code does not write a lot, but also relatively concise. However, from the perspective of learning, Antioch that the use of nib, although more code,

PrincipleThe correspondence between IOS and SQLModel class structure = SQL table structureModel instance = one row in the SQL tableProperties of the model instance-a column in the SQL tableCorrespondence of model and table@interface

Introduction to iOS Web data download and JSON parsingIn this paper, the author mainly introduces how iOS uses nsurlconnection to download data from the network, how to parse the downloaded JSON data format, and how to display the data and images of

Introduction to iOS Web data download and JSON parsingIn this article, I will give you an introduction to how iOS uses nsurlconnection to download data from the Web, how to parse the JSON data format downloaded from the network, and how to display

Before moving:After moving:Code:1 // two images to overlay 2 ImageView mIv; 3 ImageView mIv2; 4 // show the image after drawing 5 ImageView Mimageview; 6 canvas canvas; 7 8 int lastx, lasty;1 @Override2

//Rootviewcontroller.mHead Scrolling Display viewHead scrolling AD View#define Screen_size [UIScreen mainscreen].bounds.size#define KIMAGECNT 5#define KIMAGE_H 250#import "RootViewController.h"@interface Rootviewcontroller () @property (nonatomic,

This article is mainly about iOS category and extension (Extension, anonymous category), please visit the website of Crazy software education. Category is used very frequently in iOS development. Especially in the expansion of the system class, we

Static formatSet a static style in Res/values, you can use the HTML format to set a static style in a resource .Static style in a textviewstrikeWe experiment in XML, and we also look at the settings for other effects.android:layout_height=

Forward Http://stormzhang.com/android/2015/03/29/android-support-library/?utm_source=tuicool backgroundA question from the answer to the invitation answered Android AppCompat and holo a question? , it seems that many people still do not understand

Activity in the Onattachedwindow life cycle after onresume, so the long-width gain is recommended in Onattachedwindow. Ondetachedwindow is called after OnDestroy, press the back key to execute, but pressing the home key will not execute. The

In the arc mode of OBJECTIVE-C, ID obj1 = [[NSObject alloc] init];Although there are no declarations shown as __strong, an object declared by default by Objective-c is __strong, which is:ID obj1 = [[NSObject alloc] init];AndID __strong obj1 =

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Objective:Dear friends, please forgive me for so long to start writing this series of the second blog, no way to busy new product release, good nonsense not to say, first review: In my previous blog http://www.cnblogs.com/2010wuhao/p/4363041. html

An explanation of the viewer design pattern An explanation of the viewer design pattern Basic concepts Use of Nsnotificationcenter Add Listener Receiving messages Delete Monitoring

typically an application includes multiple activity We're using the program is, a activity to another activity activity and then we press the back button and we can return it in the open order. android task and back Stack Task A

#############################################This article is extremely ice original, reproduced please indicate the source#############################################The previous article spent a lot of time explaining how the init process can parse

Due to the public to do well-known reasons in the domestic use of Google Maps is not very convenient, in the development if the direct use will have some problems. But the domestic such as Baidu Map, gold map, etc. can not provide detailed map data