Android

Observer Pattern Definition： Define a one-to-many dependency between objects so then one object changes state, all its dependents AER notified and Updated automatically. Defines a one-to-many dependency between objects so that when an object changes

It was also ireader to achieve the effect of the bookshelf, but that was implemented using ListView, which was not easy to use. Most of them are implemented with the GridView, the online data is relatively small, some open source of e-books are

The following example shows a list using a custom list adapter. Copy Code code as follows: View Code Import Android.os.Bundle; Import android.app.ListActivity; Import Android.content.Context; Import Android.view.View; Import

The effect of the map due to the site can not upload, later fill. Ninepointlineview.java Copy Code code as follows: Package Org.demo.custon_view; Import Org.demo.utils.MLog; Import Android.content.Context; Import

How Android solves the back event that dialog cannot capture activity when it pops up In some cases, we need to capture the back key event, and then write to what we need to do in the event we capture, usually with the following three ways to catch

1.Fragment page XML layout: 2. Main code: Private Boolean Isflingscroll; Private View Headview; Private Pulltorefreshlistview Lvhomestore; Initview () {Lvhomestore = (Pulltorefreshlistview) View.findviewbyid

A period of time did not watch the video, last night smoked a little time, and saw the next big God video tutorial, and took time to write a study record. The code is basically the same as the teacher said, and there are many similar blogs on the

Effect Chart: Look at the Internet are two view stitching, the default right side does not show, the level of movement when the right view shows. But see the latest version of the effect of QQ is not like this, but the feeling is very good, so

Main.xml: Copy Code code as follows: android:orientation= "Vertical" Android:layout_width= "Fill_parent" android:layout_height= "Fill_parent" > Android:layout_width= "Fill_parent" android:layout_height= "Wrap_content"

Get a picture resource from an SD card, or take a new picture. Post Code First Get Pictures： Notes: If you take a picture, you can specify the location of the image to save. Copy Code code as follows: charsequence[] Items = {"album"

Popupwindow can achieve a floating layer effect, the main methods are: Can customize view, through the Layoutinflator method, can appear and exit animation, you can specify the display location.In order to Popupwindow multiple functions and strive

This tutorial for you to share the Android release microblogging, add facial features such as the specific code, for your reference, the specific content as follows Post a new microblogging interface:

Full is the pit, because the server lazy let customer service to write unified order, the server only gave the URL of the notification. Micro-letter Payment demo does not unify the order of the Code. Read this article before reading:

Everyone good, today to share is to resolve the problem of the resolution of the picture Oom, we can use bitmapfactory here a variety of decode methods, if the picture is very small, will not appear oom, but when the picture is very large It is

In the project just completed, in a page, user experience Division to put forward the user operation of the stay button to remain in the page, no matter how long the page can be scrolled to stay in the visual area of the page. The final

The example of this article for you to share the Android classification of Sideslip menu production methods for your reference, the specific content as follows Classificmenuactivity.java Code: Package Com.siso.crazyworld; Import

Fiddler is a free grab and debug tool, smaller and simpler than Wireshark, and this section describes how to crawl the Android phone's HTTP and HTTPS packets via WiFi. First, connect the Android phone 1.1, mobile phone-side configuration After

This article describes the ListView to add an event to the button above each item as follows: 1. First look at the effect of the picture:Here for testing only, I write the data dead, as needed can be modified on their own, in addition to achieve

Copy Code code as follows: private void Alertscreendialog () { Displaymetrics dm = new Displaymetrics (); Getwindowmanager (). Getdefaultdisplay (). Getmetrics (DM); String optstr = "Mobile screen resolution:" +dm.widthpixels+ "X"

In applications, you may need to pass the data when you jump to another activity, and you may use the bundle object. In the mainactivity, there is a intent that navigates to bactivity, Intent Copy Code code as follows: {