Android

The java code is as follows (I will explain the simple knowledge points in the form of annotations ): Package com. gc. gridviewdemo;/*** @ author Android General * // *** knowledge point explanation: * 1. The GridView is used to display multiple

Android Emulator provides the GPU on option, which means that the GPU of Host (the PC running Emulator) is used. Of course, the OpenGL driver must be installed on the PC. In implementation, libGLESv1_CM.so libGLESv2.so is replaced. When the system

If you only need to load an image, you can directly load it. however, if you want to load a large number of images in controls like ListView, GridView, or ViewPager, the problem becomes complicated. when using such controls, the number of images

Intent contains Intent and implicit Intent. Intent is usually used in the program and the Activity name is specified. intent = new Intent (context, Activity name. class); implicit Intent is generally used for interaction between different

Background We use a common CheckBox to show whether to save the account and password when logging on. The last step is to save the txt file and use Java I/O operations. This is just a rough one. Save files Public static void savefile2card (Context

My recent internship was about flat development, and my assignment was to load the driver into the kernel. Preparations: There are two ways to load: Dynamic Loading and uninstallation, that is, module loading, and direct compilation into the kernel;

Because the api for text message read/write operations is hidden, we need to use 《Java reflection mechanism LearningThe reflection method mentioned in the article gets the hidden API. This has a use case everyone can download

Parcelable is used to pass a custom complex object between processes. After learning about Parcelable, write your own ideas. Parcelable is used to pass an object, such as a custom class named Cartoon, to another activity. First, construct a bean.

Unity3D game development of continuous rolling background original http://blog.csdn.net/qinyuanpei/article/details/22983421 In 2D games such as daily parkour, because the game needs to show the feeling of motion, it usually keeps the game background

1 mcrypt = 2 3 String encrypted = MCrypt.bytesToHex( mcrypt.encrypt("Text to Encrypt"4 5 String decrypted = 1 $mcrypt = 23 $encrypted = $mcrypt->encrypt("Text to encrypt"45 $decrypted = $mcrypt->001 002 003 004

  Method 1 layout: Public void init () {ImageView popimg = (ImageView) findViewById (R. id. pop_img); popimg. setOnClickListener (new OnClickListener () {@ Overridepublic void onClick (View v) {// TODO Auto-generated method stubLinearLayout layout =

(1) Procedures The two buttons in the code process the event and read and write the text respectively. 1) file write operations First, call the openFileOutPut () method of Activity to obtain the output stream of the text file. The first parameter is

When fragment is used, there is always a problem, that is, communication between fragment and activity. Next we will record the methods for communication between activity and fragment through implementation interfaces. 1. The activity sends a

Is to implement such a search box on the top. 1. The search box is an item on the menu on the actionbar. It is called SearchView. We can define it in the menu option first: Bmap_menu.xml: Here, the collapseActionView of showAsAction

When we write three listview items directly in the layout file, three scroll bars will appear, and each listview will display only one item, and more will be displayed after modification. How can this problem be solved? The solution is: Use a

Hello everyone, I'm Qin Yuanpei. Welcome to continue to follow my blog. My blog address is blog.csdn.net/qinyuanpei. First of all, I would like to thank you for your attention to my blog. Today I want to share with you a project of the aircraft war.

Cocos2d-x 101 encounter/directory1. Installation and environment setup-xcode2 Scenes, Director, Layers, Sprites3. Create an image menu4. Create a new scenario on HelloWorld5. Add a sprite.5.1 scale down sprite and display it completely6 action,

Cocos2d-x 101 encounter/directory1. Installation and environment setup-xcode2 Scenes, Director, Layers, Sprites3. Create an image menu4. Create a new scenario on HelloWorld5. Add a sprite.5.1 scale down sprite and display it completely6 action,

If you want to become an outstanding Android Development Engineer and do not know how to use Android design rules, Google standardized A series of design principles for Android programmers after Android4.0 came out, do not blindly imitate the IOS

This problem has plagued me for a long time. If I haven't solved it before, let me put it on. Later, I took another afternoon to find a solution and finally got it done! My solution is to modify android.batand directly specify the location of