How to refresh the android Interface

Android provides the invalidate method to refresh the interface, but invalidate cannot be called directly in the thread, because it violates the single-thread model: Android UI operations are not thread-safe, these operations must be called in the

Android UI: How to Use the hidden layout drawer in android

Recently I am writing an application and want to put the setting page and the application page together so that users can see the impact of their settings on the UI in real time, in this way, you can easily set your favorite interface. After

WebService Interface access method in Android

Need to introduce ksoap2-android-assembly-2.5.2-jar-with-dependencies.jar Copy codeThe Code is as follows: // WebService namespace Static final String namespace = " "; // Server publishing url Static final String url

How to configure horizontal and vertical screen restrictions for android

In the development of android applications, you sometimes need to restrict horizontal and vertical screen switching. You only need to add the android: screenOrientation attribute restriction to the AndroidManifest. xml file. Ndroid:

How to hide the title bar and status bar in Android

1. Hide the title bar Copy codeThe Code is as follows: // hide the title bar this. requestWindowFeature (Window. FEATURE_NO_TITLE ); Ii. Hide the status barCopy codeThe Code is as follows: // hide the status bar this. getWindow (). setFlags

How to Use Shape of Android control series

If you are not satisfied with the UI control provided by the Android system, you can try the custom control. Let's take the Button as an example, android has previously written the Android Button control beautification method, which mentions the xml

Android dynamic View addition Solution

Background code Copy codeThe Code is as follows: private void ChangeView () { Ly. removeAllViews (); LayoutInflater inflater = (LayoutInflater) getSystemService (LAYOUT_INFLATER_SERVICE ); View layout = inflater. inflate (R. layout. grid, null

Code for adding a Listener instance to Android View

Copy codeThe Code is as follows: findViewById (R. id. myButton). setOnClickListener (new View. OnClickListener (){ Public void onClick (View v ){ // Do stuff } }); The disadvantage of using the above method to add Listener is that if there are too

Android scaling using gestures to process instance code

Internet rumors that HTC's HERO-ROM supports multi-touch arguments mostly stem from browsing web pages and pictures, like the IPhone through gestures to control the size of the page. The following example uses the existing API to scale HERO images

Code and ideas for implementing horizontal screen in android

When the screen changes to a horizontal screen, the system will call the OnCreate method of the current Activity again. You can put the following method in your OnCreate to check the current direction, then, let your SetContentView load different

A small example of how Android gets the status bar and taskbar height

Copy codeThe Code is as follows: package com. aslibra. test; Import android. app. Activity;Import android. graphics. Rect;Import android. OS. Bundle;Import android. util. Log;Import android. view. Window;Import android. widget. ImageView; Public

Simple implementation of image paging in android

Copy codeThe Code is as follows: public class PageWidget extends View { Private Bitmap foreImage; Private Bitmap bgImage; Private PointF touchPt; Private int screenWidth; Private int screenHeight; Private GradientDrawable shadowDrawableRL; Private

Instance code for sending Http requests (including file upload and servlet reception) in Android

Copy codeThe Code is as follows :/** * Submit data to the server over http to implement the form submission function, including uploading files * @ Param actionUrl: Upload path * @ Param params the request parameter key is the parameter name and

Android Sina Weibo pull-down refresh (the latest message is displayed at the top)

The pull-down refresh function similar to Sina Weibo is used to view the latest news! Display the latest message at the top! The Code is as follows: Code of the PullToRefreshListView class Copy codeThe Code is as follows: package com. markupartist.

Android program opening and Input Method operations (opening/closing)

Today, I sorted out the operations on the input method in Android:1. Open the input method window: Copy codeThe Code is as follows: InputMethodManager inputMethodManager = (InputMethodManager) getSystemService (Context. INPUT_METHOD_SERVICE ); //

Android Tween animation-RotateAnimation

This article mainly introduces how to use rotate in Android to achieve non-stop image rotation. The Android platform provides two types of animations: Tween animation, that is, animation effects are generated by constantly performing image

In-depth explanation of Android development FAQ

Android is very popular now. Its So-called openness and free open source have attracted a large number of mobile phone hardware manufacturers to enter the Android camp. Another reason for its popularity is its platform application development. As

Android Note: nesting ListView in ScrollView

A few days ago, due to project requirements, another ListView should be placed in one ListView, that is, another ListView should be placed in each ListItem of one ListView. However, at the beginning, we will find that the placed small ListView is

Android Note: in-depth explanation of defining complex strings from right to left

The language we use, whether in Chinese or English, is read from Left To Right ), therefore, we are very accustomed To reading from Left To Right ). Once you encounter a Right-To-Left reading, you will be very unaccustomed To it, even more

Idea and code of ListView of Android custom Adapter

In development, we often use the ListView control. The Android API also provides many shortcuts for creating ListView adapters. For example, ArrayAdapter, SimpleAdapter, and SimpleCursorAdapter. But do you find that if you use the adapters provided

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