Android

The Android x86 simulator can solve the problem of slow speed of the ARM Simulator !! The download speed of Android x86. is much faster than that of the android sdk simulator. follow these steps: Install VirtualBox.Download the required ANDROID X86

Create FragmentTo create a fragment, you must derive a class from the derived class of Fragment or Fragment. Fragment code is written like activity. It has the same callback method as activity, such as onCreate (), onStart (), onPause () and onStop (

To manage fragment, you need to use FragmentManager. To obtain it, you need to call the getFragmentManager () method in the activity (). You can use FragmentManager to do the above:   1. Use findFragmentById () or findFragmentByTag () to obtain

A Fragment represents some behaviors in the Activity or some user interfaces. You can combine multiple Fragment in an Activity to create multiple UI panels. You can also reuse one Fragment in multiple activities. You can understand Fragment as a

Custom ComponentsThe Android system provides a powerful component model for users to create their own UIS. This model is based on basic layout classes such as View and ViewGroup. The Android system contains the pre-created child classes of View and

AsyncTask is now translated as an asynchronous task Overview:AsyncTask makes the use of UI threads appropriate and simple. This class allows operations to be performed in the background and the processing results are displayed in the UI thread,

(Ffmpeg v0.9) FrameworkIn the latest ffmpeg version, a new thing was found: avconv, and ffmpeg. c and avconv. c looked like one. Only after a research found that ffmpeg was renamed avconv under libav. What is the relationship between libav and

The enumeration type is often used when it is known that values may be input. In java, how do I customize values of the enumeration type? See the following code: [Java] public enum Point {Satisfaction (1), Dissatisfied (-1 );Private final int

When developing the andorid program, it will inevitably involve exiting the entire application. How can we completely exit? Refer to the following key code: [Java] import java. util. Collections list;Import java. util. List;Import android. app.

When reading image files in sdcard, see the following functions to read image files in a stream: [Java] public static void ShowImg (String uri, ImageView iv) throws IOException {FileInputStream fs = new FileInputStream (uri );BufferedInputStream bs =

When using Camera and SurfaceView for cameras, you will inevitably encounter the problem of setting the Camera flash. Before setting the Camera, you must first obtain the flash mode supported by the Camera and then set it. As I am developing in a

At least the size of memory allocated by the Android app on T-Mobile G1 on the stack is limited to 16 Mb. For mobile phones, this is not a small memory, but it is still far from meeting the needs of some developers. However, even if you do not plan

The broadcast receiver (BroadcastReceiver) is used to asynchronously receive the broadcast Intent. The broadcast Intent is sent by calling Context. sendBroadcast (), Context. sendOrderedBroadcast (), or Context. sendStickyBroadcast. Generally, a

Public class UnitTransformUtil {/*** Convert the unit of dp from pixel to Pixel based on the resolution of the mobile phone )*/Public static int dip2px (Context context, float dpValue ){Final float scale = context. getResources (). getDisplayMetrics

TableLayout is a complex layout. The simplest method is to drag the control to make an interface. However, TableLayout is often used in the Code, for example, to make a table. This topic describes how to use TableLayout. Android: layout_width =

Sharing global data in android DevelopmentDuring normal development, we may sometimes need some global data to make all the activities and views in the application accessible. In this case, you may first want to define a class and then create many

IntroductionA calendar Layout View with year, month, and day selected class inheritanceJava. lang. ObjectAndroid. view. ViewAndroid. view. ViewGroupAndroid. widget. FrameLayoutAndroid. widget. DatePicker MethodPublic int getDayOfMonth ()Obtain the

Method 1:  Private void startLoadBitmapThread (){(New ReadBitmapRunnable (this, this. getContentResolver (). run ();}Method 2:  Private void startLoadBitmapThread (){Thread thread = new Thread (new ReadBitmapRunnable (this, this. getContentResolver (

As the next-generation Web page language, HTML5 has many new features that have long been expected. One of the advantages of HTML5 is its ability to achieve cross-platform game code porting. Many companies now use HTML5 Technology on mobile devices.

Thread SecurityIn some cases, the methods you implement may be called in different threads, so they must be implemented as "thread-safe ".  This is first reflected in methods that can be called remotely-for example, methods in boundservice. When a