Android

The usage of the GridView and the usage of the GridViewGridViewDemoxml File Android: numColumns = "auto_fit" // set the number of columns in the GridView. Here, you can set numbers 1, 2, 3,... or auto-adaptive auto_fit. Android: horizontalSpacing =

Difference between getX () and getRawX () in Android MotionEvent, motioneventgetxPublic class Res extends Activity implements View. OnTouchListener {Button btn = null; int x = 0; int y = 0; int rawx = 0; int rawy = 0;@ Overridepublic void onCreate

Reference third-party packages during android development, android third-party About how to use third-party jar packages in android development: Generally, it is a packaged jar package. Copy It To The libs package under the project. If there

Differences between onTouchEvent and OnTouch in Android View: androidtouchevent We can rewrite the onTouchEvent method to process messages such as down move up: [Java]View plaincopyprint? Public class TestButton extends Button { Public

Three types of SEO optimization solutions are the most popular, and three types of seoCurrently, SEO website optimization methods are endless. Good website rankings allow us to achieve perfect marketing purposes. Different types of website

One database every Day ----- day 6 Data grouping and data paging, ----- Day Paging One database every Day ----- Day 6 Data grouping and data Paging ---- Reprinted with the source: coder-pig This section introduces: This section continues to

Share: I used the New Year's greetings developed in one day to send a blessing to the mobile website (online experience of the picture) (leave a mailbox for the Code), send a blessing to the picture Share: I spent one day developing a New Year's

Android -- EventBus usageEventBus is an Android-optimized publish/subscribe message bus that simplifies communication between components in the application and between components and background threads. For example, in the request network, the UI is

Database Log's Couldn't read row 0, col, rowcol Today, I wrote code and the log reported a very strange error. The information in CursorWindow is Couldn't read row 0, col-1 This error is generally because the specified column is not displayed when

Ios development Note TextView, ios development textview 1. cannot scroll self.scrollEnabled = NO; 2. Normal font [UIFont systemFontOfSize:30.0f] 3. bold font [UIFont boldSystemFontOfSize:30.0f] 4. Text Box offset self.textContainerInset =

Cocos2dx enables custom 2D terrain and cocos2dx2d terrain Let's take a look at the effect: Two methods can be used to generate 2D terrain, 1. Use modeling software to build 2D terrain models and import them directly using Sprite3D   Advantage:

Android principle-callback mechanismAndroid callback mechanism Callback functions can separate callers from callers. Callers do not care who are called. callers only need to know the called functions with specific prototypes and restrictions. 1.

Android: AndroidAnnotations: the network interface for uploading files is so simpleNetwork interfaces are so concise Use HttpClient to upload files. Refer to blog: Use HttpClient to upload files.If the project uses AndroidAnnotation, It is very

Json parsing-use JSONObject and JSONArray in Android to parse json data 1. Code Public class MainActivity extends Activity {TextView TV _json;@ OverrideProtected void onCreate (Bundle savedInstanceState ){Super. onCreate (savedInstanceState

Use the signature mechanism for program self-check-Android anti-cracking Self-check program written in so Main Code Import in File Header #if (CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID)#include #include#include #include #endif

Android devices determine network connection status In android development, it is sometimes necessary to determine the current network connection status before making a network request. This article describes how to obtain the current network

Android custom View implements Address Book letter index (like Address Book) I. effect: we can see that many software address books have a letter index function on the right, such as Xiaomi Address Book, QQ, and Meituan selection areas. Here I have

Some unknown details about the Android custom ViewCause: I wrote this mainly because I thought I knew the custom View well, but later I found myself making many low-level errors.Detailed Description: according to the source code comment, the View is

Use of Android BitmapDrawable () View the source code BitmapDrawable. java. BitmapDrawable has several constructor methods. New BitmapDrawable (Bitmap bitmap) is an early constructor. It is outdated in android 4.0 and some code is as follows: This

Use of Android BitmapDrawable (), bitmapdrawable View the source code BitmapDrawable. java. BitmapDrawable has several constructor methods. New BitmapDrawable (Bitmap bitmap) is an early constructor. It is outdated in android 4.0 and some code is as