different android launchers

[Android small project] is different. It is adapted from an open-source small application "looking for family names ., Android Family Name Recently, in the circle of friends, games such as "Searching for family names" and "Wanli searching for knives" are quite popular. I tried to write an android version which contain

Original address: http://www.cnblogs.com/wangmars/p/3914090.htmlSQLite, is a lightweight database, is widely used in a lot of embedded products, because the use of very little resources, two of the operation of the way almost and we contact the database is not much, even only hundreds of k he will naturally be favored by the demand, Let's talk about how to read and write to him in such a lightweight database.Before making a selection of contacts appear if a phone more than 2000 contacts, inserti

); Setcontentview (R.layout.main); } @Override protected void OnStart () {Super.onstart (); Bind service Bindservice (this, messengerservice.class), mconnection, context.bind_auto_create); } @Override protected void OnStop () {super.onstop (); Unbound if (mbound) {unbindservice (mconnection); Mbound = false; } } } Note: The above code can only be implemented from the activity to the service to send messages, if you want to send messages from the service to th

Recent projects have used the V7 package, which contains V4. When I import the other library inside also bring the V4 package to cause the conflict.There are several ways to find solutions on the Internet:1. Delete one of the V4 packages. No, there will be an error. 2. Copy one of the packages to the same location as the other package and overwrite them. No, it will be an error. Finally, finally find a problem, need to the library order and export jar package uncheck.Specific steps right-Library

How to transmit data between different android applications ?, Android Transfer If you develop the android framework, the cooperation between different applications is often involved. You need to read or modify a shared data. At this time, you can use the following two class

Recently do LAN socket connection problem, to be in a common socket connection between the activity, on the Internet search under the information, feeling or application method easy to use, post out to share! In Android, you pass variables in different activity, usually using the bundle method of adding variables in intent. When saving parameters: Copy Code code as follows: Intent Intent = n

Native sharing with different Android systems, android sharing Android shares the sharing feature with Baidu in two ways. One is to use the system's native Activity to bring up a dialog box. The following is a good option, as shown in the right figure, the applications provided above are also relatively complicated. I

[Java] // The first method returns pixels.Display display = getWindowManager (). getDefaultDisplay ();Log. I ("MainActivity", "height:" + display. getHeight ());Log. I ("MainActivity", "width:" + display. getWidth ());// The second method returns pixels.DisplayMetrics displayMetrics = getResources (). getDisplayMetrics ();Log. I ("MainActivity", "height" + displayMetrics. heightPixels );Log. I ("MainActivity", "width" + displayMetrics. widthPixels ); // The first method returns pixels.Display di

This article will show you how to get your application to support a variety of different screen sizes, mainly through the following methods: Allow your layout to be fully adaptive to the screen Load the appropriate UI layout according to the configuration of the screen Make sure the correct layout is applied to the correct device screen Provides pictures that can be scaled automatically based on screen size Use "Wrap_content" and "Match_parent"

In android, based on the conversion of dp and px at different resolutions, the android resolution dppx Public class PxAndDp {/*** convert the unit from dp to px (pixel) */public static int dip2px (Context context, float dpValue) based on the resolution of the mobile phone) {final float scale = context. getResources (). getDisplayMetrics (). density; return (int)

Different Android selectors are easy to use and address date and time are easy to use !, Android Selector Preface Picker is used in many cases in Android development, such as selecting the address, date, and time. Native Picker and iOS-like Picker both move up and down or left to a fixed area to choose options: The nu

classMyConnImplementsserviceconnection { - Wuyi @Override the Public voidonserviceconnected (componentname name, IBinder service) { - //Connection Successful WuServermessenger =NewMessenger (service); -LOG.I ("Main", "Service Connection succeeded"); AboutMbond =true; $ } - - @Override - Public voidonservicedisconnected (componentname name) { AServermessenger =NULL; +Mbond =false; the } - } $ PrivateMessenger Mmessenger =NewMessenger (NewHan

SQLite, is a lightweight database, is widely used in a lot of embedded products, because the use of very little resources, two of the operation of the way almost and we contact the database is not much, even only hundreds of k he will naturally be favored by the demand, Let's talk about how to read and write to him in such a lightweight database.Before making a selection of contacts appear if a phone more than 2000 contacts, inserting into the database will be very time-consuming,

Backwards compatibility is poor in Android, but an app app can be processed or run between versions. Backward compatibility is not good, different versions of the system its API version is different, naturally some interfaces are different, the new platform can not use the old API, the old platform can not use the new

1. There are three methods to process key events in Android gridview: Public Boolean onkeydown (INT keycode, keyevent event) Public Boolean onkeyup (INT keycode, keyevent event) Public Boolean onkeylongpress (INT keycode, keyevent event) Obviously, long-press events are handled in the onkeylongpress function. If the time of the gridview is long, the corresponding short press event (gridview. setonitemclicklistener (), and the processing of Long-key ev

Android official Getting Started document [11] support for different platform versionsSupporting Different Platform VersionsSupport for different platform versionsThis lesson teaches1.Specify Minimum and Target API levels2.Check System Version at Runtime3.Use Platform Styles and ThemesYou should also read?

Qt on Android: how to adapt to different screen sizes, qtandroid How can I use Android apps developed by Qt to adapt to various screen sizes of Android smartphones? Speaking of the screen size, there are mobile phone screens from 2.8 to 8.9, which is more painful for programmers. The

is the Android emulator main program, but from Android 1.5, you need to enter the appropriate parameters to start the simulator, TraceView as an important debugging tool on the Android platform. 8. Usb_driver, as its name implies, is the driver of Google's official Android platform, such as Nexus One, Nexus S, and so

Qt on Android: how to adapt to different screen sizes How can I use Android apps developed by Qt to adapt to various screen sizes of Android smartphones? Speaking of the screen size, there are mobile phone screens from 2.8 to 8.9, which is more painful for programmers. The Android