Android

Get control height and width in Android OnCreate () Try to get control height and width in oncreate () Children's shoes are aware that the getwidth () and GetHeight () method return is 0, specific reasons to see the activity life cycle will

Notification is a message that is displayed outside of your application's regular interface. When the app lets the system send a message, the message is first displayed as a chart in the notification bar. To see the details of the message you need

Audiomanager has this method: Iswiredheadseton (); Returns true if the headset is inserted, otherwise false; Of course, to add a permission, or always return false. I started chasing after a long time source code. The process of detecting headphone

Copy Code code as follows: Declaring Locationmanager objects Locationmanager Loctionmanager; Access to Locationmanager objects through system services Loctionmanager = (Locationmanager) getsystemservice (Context.location_service);

In fact, when it comes to immersion status bar this name I also feel very helpless, I really do not know who this term is first launched. Because the Android authorities never gave a name like the immersive status bar, only the immersive mode. And

Due to the recent project busy, blog has no time to update, today a little time on the continuous update two bar, too enjoyable. This picture drag and drop scaling is also I used in the project, today to tidy up, will be the source of dedication to

Phenomenon : Java:1801:method does not override-a method of the from-its superclass @Override ... reason : Eclipse is defaulting to Java 1.5 and your have classes implementing interface methods (which in Java 1.6 can be annotated With @Override,

Android Studio native supports the use of Gradle to build projects, defining the process of project construction with the dynamic language groovy, and avoiding the tedious definition of build.xml files. However, when used, there is a huge flaw. As

In the project, we often use a circular picture, but Android itself is not provided, then I can only do it ourselves. The first way , custom Circleimageview: public class Circleimageview extends ImageView {private static final scaletype

A few months ago wrote a blog "xUtils3.0 Framework Learning Notes", there are records through the xutils implementation of File upload method, the code is as follows: private void Uploadonclick (View v) { String upurl =

In your mobile phone more settings or advanced settings, we will find that there is a barrier-free function, many people do not know what the specific function is, in fact, this function is to enhance the user interface to help people with

Today we'll explain how to create and invoke your own contentprovider. In the previous two articles, we talked about how to read and write contacts and short messages, I believe that we have a certain degree of understanding of the operation of

This article contains the following content: DOM parsing of XML dataSax parsing of XML dataPull parsing of XML dataThree kinds of resolution used in activityThe difference between Sax parsing and pull parsing Three ways to resolve the process: 1.

Android solves the problem of sending keyevent to different processes Recently, the function of the remote Controller, the function of the phone as a TV remote control to deal with. On the handset's client sends the message to the TV's Android

Chronometer is a simple timer, you can give it a start time and take this timed, or if you don't give it a start time, it will start with your time call. By default it appears in the form of the current timer's value in "Minutes: Seconds" or

Trackball Track Ball This is similar to the PC above the mouse, can be used for navigation, so there is focus, but the actual operation is not very meaningful, because the whole screen is touch, and navigation to do, first focus with Trackball moved

Objective Some time ago need to use to Recyclerview, just want to find a package of good drop-down refresh, pull the load of the library, the results Leng did not find, they wrote a. Note: I'm talking about "pull up", not sliding to the bottom of

The Android service is divided into two types:Local Service: The same apk is calledRemote service: Called by another apkThe remote service needs to be done with the help of Aidl. What's aidl?Aidl (Android Interface Definition Language) is an IDL

Functional Requirements: (1) For example, each page display 2x2, a total of 2XN, each item display picture + text (click on the link). If a single line scrolls horizontally, it can be implemented with Horizontalscrollview. If multiple lines are

The examples in this article describe how Android simply modifies the original application and adds the application. Share to everyone for your reference, specific as follows: The first part: How to modify the original Android application 1. Start