Android

1. Obtain the image file based on the Contact Image Uri and display it on ImageView. The Code is as follows: Uri uri = Uri.parse("content://com.android.contacts/display_photo/1" afd = getContentResolver().openAssetFileDescriptor(uri, "

Reprinted from: http://blog.csdn.net/pkbilly/article/details/3068912 Struct is a new class of SDK1.5, but an object is created using this class.Internal reader = new external (System. in );Then, the reader object calls the following methods

09:42:21 Reprinted from: http://blog.csdn.net/liuhe688/article/details/6754323 # This is the clearest article about launchMode. Write your own things: 1. An application exits by pressing back and opens it again. At this time, the value of

Multithreading technology in Android The Handler message processing mechanism is used here.   handler = 1 Integer i =

17:25:01 I saw an article about the slidable ToogleButton on the Internet. I thought it was good with code, but it didn't meet my requirements. So I changed it based on his code. (I can't find the original text, so I have to paste the code .) Source

Video Player Development:  1. SurfaceView: 1. Display in unit time. 2. Internal dual-buffer mechanism: 3. directly operate the video memory of the video card, which is faster.    2. Specific steps for video playback development: 1. layout interface:

Let me talk about some other things. I hope you will be able to become a candidate for the 2013 blog star. I look forward to your vote. Thank you.     Next to the question, we will refer to how to use HierarchyViewer and HierarchyViewer.  Why do I

Preface I remember a long time ago I wrote a banner article. Many of my friends asked me for Code and asked me to open ImageManager, the image management factory used in the banner. For a good understanding of the following story, please refer to

Connectivitymanager manages network connection-related operations // Obtain the system Connection Service ConnectivityManager cm = (ConnectivityManager) context. getSystemService (Context. CONNECTIVITY_SERVICE ); ConnectivityManager.

Android has an interesting command calledDumpsysTo dump some system information. Even described on adb manual I think that some points shocould be reinforced. In order to get the complete status just run (will produce a large output ):Adb shell

Preface to better understand the following story, please refer to the two blog posts I wrote six months ago: three-level cache policies for images in android (memory, file, and network) i. Implementation of Slide screens on the left and right of

This was written when I was working in a Belgian company for four months. At that time, I was busy with account transfer and left after only two projects. I am still very grateful to this company. In addition to my intermediate title, I also

Use view in oncreate. getWidth () or view. getHeiht () is used to obtain the width and height of the view. It seems that there is no problem. In fact, the value they get is 0, which is not the result you want? Why? When the oncreate () method is

// 1. use GCD for thread processing ---- use dispatch_async to prevent time-consuming operations on the interface from getting stuck. Perform thread operations first, and then notify the main thread to update the interface dispatch_async

Menus are one of the most common elements in the user interface and are frequently used. In Android, menus are divided into three types: OptionsMenu and ContextMenu) and SubMenu (SubMenu). Today we will talk about ContextMenu.   1. Select

Android. OS. AsyncTask AsyncTask allows simple and appropriate use of the UI thread. This class allows the execution of background operations, and then releases the results to the UI thread, while eliminating manual operation threads or handler.

I. general implementation ideas Add HeadView and FootView to ListView. When ListView slides to the first item in the list, the HeadView slides. When ListView slides to the last item in the list, the FootView slides. The height of HeadView and

The Android app store recently launched by Amazon, an online retailer, has become a hot topic in the industry. Details about the app store have also begun to emerge. According to the reporter's understanding, similar to the Apple App Store, only

Are there any tricks to develop popular mobile games? To address these problems, some mobile game developers and industry experts have provided some reference suggestions for your reference. The following describes the compilation content: What do

Google Android Market recently launched its own app built-in billing system to support developers to provide app built-in payment functions. Although this is a huge improvement for all Android apps and game developers, in fact, before entering this