Mobile Develop

Android Direction sensor Sensor.type_orientation has been in the wirelessly is not recommended to use, with getorientation to replace, with this but not as before, you can get the data, need to use both geomagnetic sensors and accelerometer to

From a weak reference to the crash talk weak assign strong application scenario Method One of the definitions in. h:@property(nonatomic,assign)NSArray*dataSource;Define method Two@property(nonatomic,strong)NSArray*dataSource;How to implement in. m-

The effect is as follows:The layout file Activity_main.xml as follows:Relativelayout xmlns:android="Http://schemas.android.com/apk/res/android" Xmlns:tools="Http://schemas.android.com/tools" Android:layout_width="Match_parent"

How to set a section of the same height including the first column (small tricks, although easy but easy to ignore)* First step, set tail to 0,table.sectionfooterheight = 0 in Viewdidload, (proxy method)-(CGFloat) TableView: (UITableView *)

In a few Android developer groups, there are always new questions: "I want to learn Android, but I don't know how to start, I don't know what to learn." "In fact, I was at the beginning of the study of Android development also encountered this

Simple implementation of the iOS-based music player, and with lyrics, with the play automatically scrolling, the effect is as follows:First, it is necessary to establish a class ZMPLRC to parse the lyrics, which is mainly to separate the time and

In need of fuzzy UIView, add a Uivisualeffectview object, if directly in storyboad directly add Uivisualeffectview, your project must be iOS8 above to use-(void) Viewdidload {[superviewdidload];Uiimageview *imageview = [[Uiimageview alloc]

This paper mainly introduces Broadcastreceiver concept, use, life cycle, security, classification, special broadcastreceiver (local, sticky, orderly, sticky and orderly broadcasting). example code see BROADCASTRECEIVERDEMO, example apk

Main reason: "$ (function () {XXX}") when registering a click event with the element on the page; ", JS dynamically generated elements have not yet been generated, so the click event does not take effectWorkaround:Scenario One:JS dynamically

Many Android and iOS projects, because of various reasons, have to call C + + code. This article focuses on using objective-c++, NDK technology, to invoke C + + code on iOS and Android devices. Main working principle The main working principle, as

This effect is required in the previous time project, customizing the Radiogroup layout, but only if the RadioButton is to be found. I collect all kinds of information and try various tests. Finally, there is a custom radiogroup layout. The self-

In this thank csdn at the end of 14, the launch of the star of the blog, and then the small part of the thick skin to participate in, thank you for your small partners hard vote, your support is the biggest encouragement to small, small series will

Today, I tried to test the JSON with the book.Two methods are used to parse the JSON data.1. Use Jsonobject to parse 2. Use Google's Open Source Library Gson to parseFirst, the use of Jsonobject to analyzeCreate a JSON file under the server Get_data.

After the app was released, there was always feedback that crash had occurred, but I couldn't locate the problem because I couldn't get the log. Later found that we should collect crash logs and upload them to the server.There are a lot of

Recently want to talk about the network that block, suddenly found that Android comes with httplicent, but we usually develop also commonly used third-party httpclient (Apache official). As a result of the previous look at some of the predecessors

The shaking is how to realize it ~ found that the original iOS supportThere's a way to do this in Uiresponder.-(void) Motionbegan: (uieventsubtype) Motion withevent: (uievent *) event __osx_available_starting (__mac_na,__iphone_3 _0);-(void)

In Android, there are three ways to increase the number of listeners for a button1. Anonymous inner class@Overrideprotected voidonCreate (Bundle savedinstancestate) {Super. OnCreate (savedinstancestate); //Loading layout FilesSetcontentview

TopicYou is given a string, s, and a list of words, words, that is all of the same length. Find all starting indices of substring (s) in s that's a concatenation of each word in wordsexactly once And without any intervening characters.for example,

Steps to create a submenu in Android:1. Overwrite the Oncreateoptionmenu () method in activity and call the menu's Addsubmenu () method to add a submenu.2. Call the Add method of submenu, adding a submenu.3. Overwrite the oncontextitemselected ()

Objective:I wanted to do it a long time ago, but for a variety of reasons, I didn't get it.Today there is a predecessor who puts forward demand. Say you want to move Eclipse's Android project to Android studio, but worry that Android studio won't