Mobile Develop

Original address: http://blog.csdn.net/huifeidexin_1/article/details/7883984Encoding conversions in iOS1.utf-8 Conversionnsstring *data = @ " Hello, Beijing!" ";convert into UTF-8nsstring *datautf8 = [datastringbyaddingpercentescapesusingencoding:

The Dumpsys command displays information about all applications in your phone and also gives you the status of your phone.Direct execution adb shell dumpsys KEY  Displays all of the following information.Optional name of key Surfaceflinger,

With more and more apps on the market online, a lot of software on the phone memory requirements is also very large, so we must be in the development of how to optimize the memory, to optimize their own apps as much as possible. Today we'll take a

KVO, like the Observer pattern, detects the change of an object by setting the observer to the specified object, and when the property of the specified object is modified, the object used as the observer receives a notification. Simply put, the KVO

Description of the. gitignore file: Http://www.html-js.com/article/2030Android's module recommends this. gitignore file/build*.imlThe Android project. Gitignore file recommended this write# Built application files *.apk *.ap_ # Files for the Dalvik

In today's world, mobile is basically the world of Android and Apple, basically no Microsoft, as a loyal supporter of Microsoft, but also to change.But Android and iOS development is two completely different worlds, there is no one technology, after

1. In the Xxx-info.plist file, create a new row Required background modes , adding the following two items.app shares data using Corebluetooth and app communicates using Corebluetooth:After adding this entry, you will find that Bluetooth remains

KVO, like the Observer pattern, detects the change of an object by setting the observer to the specified object, and when the property of the specified object is modified, the object used as the observer receives a notification. Simply put, the KVO

Transferred from: http://www.blogjava.net/TiGERTiAN/archive/2010/02/03/311827.htmlA lot of people do not understand the intent and intentfilter in the document, I explained here.Intent literally means goal, purpose. To be popular, some goals need to

This method obtains the current activity's screen through the view, is not the framebuffer way, therefore has the certain limitation. But this method is relatively simple and easy to understand.First get the bitmap format screen by using the

Sometimes when we load a background image for ImageButton, the following exception occurs:1Org.xmlpull.v1.XmlPullParserException:Binary XML file line #3: tag requires a ' drawable 'attribute or child tag defining a drawable2At

These days to do the project, with a 3-layer nesting, in fact, no matter how many layers nested, only need to pay attention to the following points:1, the internal nested class must be static, otherwise the parsing will be wrong;2. The attribute

　The processing of Android touch events mainly involves several methods: Onintercepttouchevent (), Dipatchtouchevent (), Ontouchevent (), OnTouch ().　　Onintercepttouchevent () is used to intercept events and change the direction of event delivery.

I'm upset todayPost Vent VentEnterprise Developer Account application approval is passed;After clicking the Payment button, you cannot jump to the payment page;We is unable to process your requestAn unknown error occurredEnter member Center also

1. Batch write, use the way of things, first cache the data, then bulk write data, greatly improve the speed288, direct inset into time 7 seconds8,640, batch write time 5-7 seconds[Java]View Plaincopy try { this.myDataBase.beginTransaction ();

At present, most apps will have a boot page at launch, today we introduce a more intuitive and fast implementation of the Guide page implementation methodThe final effect is to have a full Screen guide page, at the bottom of the page is

Android Environment installationOne. Download:What you need: Eclipse, SDK, JDK, ADTReference tool: http://www.androiddevtools.cn/Two installation:1.eclipse:Select a work Store: If no special, default2.JDK:The default installation can3.ADT:Select

Let's take a look at what the framework uses when you don't configure any handlermapping.Then use the above configuration to comment out the handlermapping:1 XML version= "1.0" encoding= "UTF-8"?>2 Beansxmlns=

Read a lot of articles on the internet, find or official documents to introduce the most detailed, the important things simple summary Out. See the Official document address (http://www.bangchui.org/read.php?tid=9) for Details.Displaying the picture

Source: BLE Android App control LED light implementationNote: refer to Amomcu source code Modification.Open the app and check if Bluetooth is turned onBluetoothadapter mbluetoothadapter;FinalBluetoothmanager Bluetoothmanager =(bluetoothmanager)