Android

Related Links: Menu Bar implementation at the bottom of Android After reading ViewPager recently, I just wanted to make such a Demo. Of course, I also referred to the grid menu in the examples of experts and started to use the custom imgBtn,

Copy codeThe Code is as follows: public class MainActivity extends Activity { @ Override Protected void onCreate (Bundle savedInstanceState ){ Super. onCreate (savedInstanceState ); SetContentView (R. layout. activity_main ); } Public void onClick

As an Android app developer, you have to face an embarrassing situation: applications that have worked hard to develop can be decompiled easily by others. Google also seems to have discovered this problem. From SDK2.3, we can see that there is a

First, we found that most of the android smartphones we use now are hanging up when you call the phone by pressing the power key, which is generally being set. I mainly add this function to the native source code for learning .... First look at a

We all know that Programmers sometimes spoof things, just like in android, programmers hide this item in setting: We can find "about mobile phones" in which there is "android version, When we click "android version", an image (spoof typeThis is the 2

Singleton mode definition: Ensure a class has only one instance, and provide a global point of access to it. Dynamically ensure that a class has only one instance, and instantiate it and provide the instance to the entire system. As shown in (from

1. Create an Android Project In the create dialog box, enter the App attributes. Select the latest SDK version, which is not compatible with the version. Select Holo Dark as the topic. Next, use the default settings Next, use the default settings

Accessing Network images in android projects is very universal. If we need to access the network to obtain images every time we make a request, it will consume a lot of traffic and the image occupies a large amount of memory, if there are too many

The previous project has been completed, and this week is basically okay. So I sorted out the previous projects and wanted to encapsulate some general components, in this way, similar projects do not need to be repeatedly invented, which also saves

Use Gallery and ImageView to achieve the android slide between left and right + index icon effect. First, you can customize Gallery to slide only one page at a time. Copy codeThe Code is as follows: public class MGalleryView extends Gallery

In the project, when you enter a page, EditText automatically obtains the focus by default. So how to cancel this default behavior? I have been searching for it online for a long time. I have listened to a soft keyboard event and called the

The Code is as follows: Copy codeThe Code is as follows: package xiaogang. enif. utils; /*** The Class LogUtils for log printing, which help us* Easy to trace our codes or logics in the project.** @ Author zhao xiaogang* @ Time 2011.4.12*/Public

First, let's take a look at the entire process from the source code to the installation package of Android applications written in Java, including compilation, links, and signatures: (1) Use the aapt tool to generate the R. java File You can create

The HTML5 Offline Application function can make webapps work normally even when the network is disconnected. This is a very useful function. Recently, the HTML5 Offline Application function is also used. Because it is implemented on the Android

Json is a common data exchange format similar to XML, which has higher transmission efficiency than XML. In terms of structure, all data can be divided into three types: The first type is scalar, which is a separate string or number, such as the

Copy codeThe Code is as follows: import java. io. UnsupportedEncodingException; Import java. security. MessageDigest; Import java. security. NoSuchAlgorithmException; Public class MD5 { /* * MD5 Encryption */ Public static String getDigest (String

I have been working for more than a month. I have a new understanding or a real grasp of many android things. In order to make more people like me less detours, therefore, I will insist on integrating some of my most impressive knowledge points at

In the previous article, we analyzed the creation process of the runtime Context Environment in the Android Application Window. It can be seen that each Activity component has an associated ContextImpl object, and it also associates with a Window

Android provides 4 Animation: AlphaAnimation transparency animation effect ScaleAnimation scaling animation effect TranslateAnimation displacement animation effect RotateAnimation rotation animation effect This section describes the RotateAnimation

Android provides 4 Animation: AlphaAnimation transparency animation effect ScaleAnimation scaling animation effect TranslateAnimation displacement animation effect RotateAnimation rotation animation effect This section describes the ScaleAnimation