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
Data encapsulation object, If NULL is passed, direct return string
* @param callback Interface callback listener
/public static
Demo Demo
Implementation code
1. Data format of the server
1.url:http://www.itlanbao.com/api/app/users/user_login_handler.ashx
2. Parameter Description:Email must have a mailboxPassword must have a password.Accesstoken must have MD5 (email+password+ "both platforms agreed public key")
3. Request method: POST
4
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
, it indicates that you have the corresponding permissions.
2) If not, go to PackageManagerService. mSystemPermissions. This information is read from/system/etc/permissions/platform. xml at startup. Permission corresponding to uid of some system-level applications is recorded here.
3) return results.
4.2. CheckUriPermission1. if the uid is 0, it indicates that it is a root user, and the permission is not co
. android obtains the component size.
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 called, the interface is invisible and the memory-loaded component has not been drawn. You cannot obtain its size.
So how can
Android Development Review notes-TabHost component (2) (bottom menu navigation), Android tabhost
In the previous article "android Development Review notes -- TabHost component (1) (implementing the bottom menu navigation)", we mentioned using custom View (ImageView + TextView) to set the style of a bottom menu.
Here we
Android-only 2 rounded imageviews and android-ImageView
This example is an example of converting two right angles of an image into a rounded corner:
1. Customize the width and height of the three attributes and the rounded corner value:
2. Use it in the referenced Layout
3. Set two layers in Java code. Here th
Implementation of Countdown e-clock for Android (Part 2) and later for android
This article continues with the unfinished part, which will achieve dynamic results
In the program, first specify an End Time:
00:00:00
Calculate the time difference between the current time and the end time.
private long getCurrentShowTimeSeconds() {Date curTime = new Date(); lon
Android happy Snake Game Development tutorial-03 virtual direction key (2) Draw a triangle, android-03
Overview and directory of this series of tutorials: http://www.cnblogs.com/chengyujia/p/5787111.htmlI. Draw triangles
In the previous article, we have created a custom ctionkeys class for the virtual arrow key. Next we will continue.
In this project, the backgro
Animation can also be stored in an XML file, which improves the maintainability of the program. To write an animation in XML, follow these steps:
1. Create a folder named anim under the res folder
2. Create an xml file and add the set tag first. Modify the tag as follows:
Android: interpolator = "@ android: anim/accelerate_interpolator">
3. Add the rotate, alpha,
Android-slide back through SlidingMenu 6.2 latest version of gesture (2), android Sina Weibo
Reprinted please indicate the source:Http://blog.csdn.net/hanhailong726188/article/details/46453627This article is from: [Hailong's blog]
I. Overview
In the previous blog post, Android-uses SlidingPaneLayout high imitation
PrefaceIn [Android Series-] 1. Android development Environment Building and Hello World This article describes how to quickly build an Android development environment and successfully build an Android application without any code changes.Next, you have to see1. What directories and files are available for apps created
Android learning notes-Menu (2), android learning notes
Knowledge point:
This time, we will continue the learning of menus not finished in the previous article, Context Menu and pop-up menu ).
Context Menu
The Context Menu provides operations on specific items or context frameworks on the UI interface, just like the context menu in Windows.
In
Android custom control series 2: Custom switch button (1), android Control
This time, we will implement a complete and pure custom control, instead of using the system control like the previous Composite Control. The plan is divided into three parts:Basic Part of the custom control,Processing of touch events of Custom ControlsAndCustom properties of a custom cont
Use of Animations in android Development (2)
Use of Animations in android Development (2)
This blog post focuses on the use of animation effects in android development. Unlike the previous blog post, the four animation effects are mainly implemented using xml files, this imp
intersecting with the matrix ); // whether it does not intersect with this matrix/** several translation transformation methods */Public void translate (INT dx, int Dy) Public native void translate (INT dx, int dy, region DST); Public void Scale (float scale) // hidepublic native void Scale (float scale, Region DST ); // hide/** a series of combination methods */public final Boolean Union (rect R) Public Boolean OP (rect R, OP) {public Boolean OP (INT left, int top, int right, int bottom, OP) P
Interpreting Android ContentProvider (2) creating your own Provider and android creating provider
This article is translated from the official android documentation and tested by yourself.
Content provider manages data access. We can implement one or more custom providers in our own applications (by inheriting the abs
J brother --------- interview Summary of Beijing Android recruitment companies 2, --------- android
I followed the previous article to write down the http://blog.csdn.net/u011733020/article/details/45998861, thank you very much in the previous article to me pointed out the problem of the brothers.
Interview company: wudaokou interview time: May 27 AM. interview
UID. Once found, the corresponding permission is indicated.2) If not found, then go to Packagemanagerservice.msystempermissions to find. This information is read from the/system/etc/permissions/platform.xml when it is started. This records some of the system-level application UID corresponding to the permission.3) returns the result.4.2, CheckUriPermission1. If the UID is 0, the description is the root use
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