Mobile Develop

Modify Defaultcallloginsertionhelper.java (alps\packages\providers\contactsprovider\src\com\android\ providers\contacts)@Overridepublic void Addcomputedvalues (Contentvalues values) {Insert The current country code, so we know the country the number

Fmdb (https://github.com/ccgus/fmdb) Words do not say the first to add this library, in will add in, OK ready to work on the code. #import "DDViewController.h"#import "FMDB.h"@interface ddviewcontroller (){ fmdatabase *db;}@end@implementation

Used to verify the mailbox, the phone number is usually used with third-party regular expressions or nspredicate (click here to view the previous article), in the late, Apple launched its own regular expression to provide developers call, very

(1) If the button triggers an event method, we only need to pass in the control object by sender (ID), this method can handle the control property value, and if the method needs to handle other objects, then one method is to set the object as a

The most frequently encountered problem in HTTP client programming is that the content of many websites is only visible to registered users, in which case you must require the correct username and password to log in successfully before you can

Today there is a very strange problem, because the Viewdidload method is called, and the Viewdidappear method is not called, resulting in the code in the Viewdidappear method is not executed.Here's a demo that completely simulates this scenario.The

The so-called thread is a sequential sequence of actions to achieve a purpose.Inside the computer, there are a series of continuous movements at the same time. That is, multiple threads are executed in parallel (concurrently).In the computer, if the

There are many ways to deploy a "null library" that does not contain data from an existing library, extracting its table structure, objects, permissions, and so forth. such as the self-generate scripts feature, custom script extraction creation

ReasonTypically, data is transmitted to VMware, except that the network is the mobile device that is mounted.Network set up really disgusting, but, I was in the game, is to use the network, then remember that Xen made a few virtual machines, and

Android now has high security requirements, I want to do today to confuse the APK, with all third-party tools can not decompile, the author's intellectual property is protected, is not a bunker.   I, first of all, this is on the basis of 4.0.  

There are two ways to resolve fragment duplicate creation currently:1, fragment with Viewpager use:Vp.setoffscreenpagelimit (3);//Set the number of cached pages2, Fragment alone use:In the Oncreateview () method, add:if (null = = view) {view =

When will a log file be generated? 1. Program Abnormal exit uncaused Exception. 2. The program forces Force Closed (FC) to close. 3. The program is unresponsive application no Response (ANR). When will the ANR be generated?

First, the basic knowledge of the service:One of the four components of a serviceandroid system (Activity, Service, Broadcastreceiver, ContentProvider) is also an application component that is similar to the level of activity, But you can't run it

In Android, frequently used timers are mainly implemented in the following ways:The sleep (long) method using handler and threadSecond, using handler postdelayed (Runnable, Long) methodThird, the use of handler and timer and TimerTask combination

this article reprinted to http://blog.csdn.net/yesjava/article/details/80861851. Mutating method sent to immutable object 'It is literally understood that mutable messages are sent to immutable objects. For example, an object of type Nsdictionary

This process, I think it's necessary to recordThe cause of the matter is this, the program written in the virtual machine can not connect to the server, the first thought is that the virtual machine can not access the network, open a search site,

String board = build.board;//Motherboard String Band = build.brand;//Android system customizer string abi = build.cpu_abi;//CPU instruction Set String AAA = build.device;//device parameter string dis = build.display;//display parameter string f =

Today, when writing a demo, it is found that if you take the image obtained through the camera, direct operation, such as cropping, scaling, the original image will be rotated 90 degrees.At first I felt baffled and overwhelmed. Later Baidu a bit,

Spinner generally binds an array of strings, such as the previous practice arrayadapter adapter = Arrayadapter.createfromresource (This, R.array.fruit, Android. R.layout.simple_spinner_item); sometimes we need to bind an object, such as display, to

android*-Alternate method:installing the intel®atom™x86 System Image for android* Emulator manually | Intel®developer Zonehttps://software.intel.com/en-us/android/articles/