android 2 2 launcher

This section will be divided into five steps to complete the deployment of an Android development environment.First step: Install the JDK. Step Two: Configure the variable environment for the JDK on Windows. Step three: Download and install Eclipse. Fourth step: Download and install the Android SDK. Fifth step: Install the ADT plugin for Eclipse.(1) Installing the JDK: JDK (Java SE Development Kit Java Sta

Android. Intent. Category. LauncherWhat is the specific function? I will make a small example to help you understand An application can have multiple activities, each of which is at the same level. Which activity is the first to start when a program is started? Some programs may need to be displayed in the program list, while others do not. How to define it? Android. Intent. Action. Main determines the act

The following uses an example in the android SDK to describe how intent is defined and parsed. This application allows users to browse the notepaper list and View Details of each notepaper. (1) The first activity in the example is com. google. android. notepad. noteslist, which is the main entry of the application, provides three functions, which are described by three intent-filters:1. The first entry is

bitmap Gravity: If the bitmap is smaller than the container, you can set the relative position of the bitmap in the container Tilemode: Specifies that the picture tile fills the container's mode, setting this, the Gravity property is ignored and has the following optional values:Disabled (Whole pattern damper),clamp(original size),Repeat (tiled),mirror(mirrored tile) Corresponds to: ①xml definition bitmapdrawable: bitmap xmlns:android="http://schemas.android.com/ap

Summary of problems encountered during android development [2]. android Summary 36. Code specificationsHttp://liuzhichao.com/p/1781.html#more-1781 38. In pure layout, set weight to 1 for all Views except the bottom. 39. Add drawable to the left of editviewIf you only add images on the left or right, you can use an attribute of EditeView.

Blog migration-I have migrated my blog to www.ijavaboy.com to better manage it. We are sorry for the inconvenience caused by no updates! New address of this article: Click me Originally, this article should still write the implementation principle of the item drag in launcher. However, since studying launcher, it has not been implemented before, and now it is all inspired. This is not the case. A month ago

Android study note 24. Service entry (2) bind and communicate with the local Service, android. serviceBind and communicate with the local ServiceThrough the first three steps in the previous blog, we have completed a Service and the application that uses the Service (the Service is an integral part of the application ). However, when a program starts or closes a

Elastic cut (1) for Android-Launcher development) The following source code is from Launcher2.3. 1. By default, the main Activity of each application comes Indicates that when the application is installed to Launcher, click to open the Activity 2. the time sequence diagram of Launcher2 source code is as follows

process, the object you drag is a bitmap object * // you can specify Boolean willnotcache = v. willnotcachedrawing (); V. setwillnotcachedrawing (false); V. builddrawingcache (); Bitmap bitmap = v. getdrawingcache (); int width = bitmap. getwidth (); int Height = bitmap. getheight ();/*** we know that in launcher, when we hold down an item, an animation first pops up and scales it up. * here, is to calculate the magnification, and draw bitmap */matri

= Mcontext.getresources (). GETXML (Workspaceresourceid);AttributeSet attrs = xml.asattributeset (parser);Begindocument (parser, tag_favorites);Final int depth = parser.getdepth ();Final HashmapLaunchermodel model = Launcherappstate.getinstance (). Getmodel ();。。。。return i;}is actually a process of parsing XML and writing to a database, Launcherprovider.java is the data source for the entire launcher,Knowing how these icons are loaded is good for mak

interface, But it can be a string to tell the application framework layer, the name of the activity it is to start, other things to the application framework layer to do, the program framework can be based on the name to find the corresponding activity, it is necessary to match the application itself, This is done through the application's configuration file, Androidmanifest.xml.In this file, Mainactivity is configured as the default activity for the application, which means that when the user

Android Interview Questions and answers (2), android Questions and answers1. Activity-related. Launchmode, OnSaveInstnceState, and lifecycle. Four default launchmodes and OnNewIntent callbacks. OnNewIntent-> OnRestart-> OnStart-> onResume OnActivity-> OnResume. OnNewIntent, OnActivityResult? OnNewIntent launchmode with singletask or singleInstance. But if set the

Android security mechanism (2) Android Permission control mechanism, androidpermission1. Overview Android is a permission separation system. This is to use the existing permission management mechanism in Linux to assign different uid and gid to each Application, this allows private data and access between different app

Failed to apply plugin [id 'com. android. application'] And cocould not find com. android. tools. build: gradle: 2. XX. applyplugin Android studio is really cute. You can build and run it in the last second, and an error will occur in the next second... Good, you are willful, you are awesome .. Let's talk about the two

true; We can see that there is cellinfo = (cellinfo) V in onlongclick. gettag (); in this way, we know that in the onintercepttouchevent method above, we put cellinfo into the tag to return cellinfo information in the gettag method of celllayout. With the cellinfo information, we can call the celllayout. addview method to add the selected control to the desktop. In the workspace class, call the addinscreen method to set its cell information, and then directly call the celllayout. addview method

Android fragmentation knowledge concentration (2): Android knowledge concentration 1. Obtain the height of the title bar. Rect frame = new Rect();getWindow().getDecorView().getWindowVisibleDisplayFrame(frame);int statusBarHeight = frame.top;int contentTop = getWindow().findViewById(Window.ID_ANDROID_CONTENT).getTop();int titleBarHeight = contentTop - statusBarHe

Setting up the android environment -- to do things well, you must first sharpen the tool 2. android must first sharpen the tool Two days ago drums android, set up the environment, do not want to trouble on the use of the adt-bundle-windows-x86-20140702. rar, a simulator wow, too good. If you go out and turn around, th

2. Change Activity to a window: Activity attribute settingIt's easy to talk about it. Some people may want to make the app something floating on the main interface of the mobile phone.You only need to set the Activity topic to define the Activity in AndroidManifest. xml.Local sentence: Xml Code Android: theme = "@ android: style/Theme. Dialog"

When we click on an application icon in the Launcher interface, we start a program, so what happens to this process? Let us follow launcher source code to analyze it.First on the flowchart:650) this.width=650; "Src=" http://img.blog.csdn.net/20140509134103500?watermark/2/text/ ahr0cdovl2jsb2cuy3nkbi5uzxqva2luym9z/font/5a6l5l2t/fontsize/400/fill/i0jbqkfcma==/disso