Android

Android sound SoundPool: soundpool 1 not retry   SoundPool is used in development today. When soundpool 1 not retry cannot play the sound, MediaPlay can   After some research, we found that: Unable to play the sound because of the soundpool 1 not

print? User. xml: ?xml version="1.0" encoding="utf-8"?>  ListViewMain. java: Package com. example.

Since a game project recently developed has a ranking list, the ranking list is a list, and the interface is roughly as follows: ranking person name Avatar picture score ranking person name Avatar there are 100 entries in the image score list, the

Regarding the problem of preventing android programs from being restarted after 360kill, we certainly have searched a lot of methods, which are difficult to solve. Right? What are the permissions and process priorities, these things are not

Android provides two types of event processing mechanisms: listener-based event processing and callback-based event processing. For listener-based event processing, the main approach is to bind a specific event listener to the Android interface

/*** Convert the string to a 16-bit MD5 value.** @ Param string* @ Return*/Public static String MD5 (String string ){Byte [] hash;Try {Hash = MessageDigest. getInstance ("MD5"). digest (String. getBytes ("UTF-8 "));} Catch (NoSuchAlgorithmException

Recently, I had a holiday at home and wanted to create a mobile app, so I started to do it myself. One note is that when an alarm is triggered, the alarm is turned over and the sound stops. The first part is the alarm. There are a lot of demon on

Managing Bitmap Memory manages Bitmap Memory In addition to the steps described in Caching Bitmaps, there are specific things you can do to facilitate garbage collection and bitmap reuse. the recommended strategy depends on which version (s) of

Explanation of the Android logcat command (1) display all log information: adb logcat (2) display the log information of a TAG: adb logcat-s TAG name (3) display the log information of a certain level of a TAG: adb logcat TAG Name: level ..... TAG

This article describes five data storage methods in Android. Data storage is most frequently used during development. Here we mainly introduce five Data Storage Methods on the Android platform: 1. Use SharedPreferences to store data 2. File Storage

I have encountered this problem before, but now I have solved it. But I forgot how to solve it. After a long time, I finally found the solution, record it now to prevent further attacks. This error occurs in one of my activities, but I have

Body KeyguardManager km = (KeyguardManager) getSystemService (Context. KEYGUARD_SERVICE); // obtain the KeyguardLock kl = km. newKeyguardLock ("unLock"); // The Tagkl parameter used in LogCat. disableKeyguard (); // unlock PowerManager pm =

Today, I am writing a program for downloading files and searching for a copy on the Internet to download MP3 files. However, it is found that the downloaded MP3 file is larger than the original file, and there will be noises in the MP3 file. After

[Java] new Thread () {public void run (){.....}}. start (); If you create a Dialog at the ellipsis in the above Code, the error "Can't create handle inside thread" will occur, so the following message format is used, the following is a specific

Just like the jitter of the QQ window, create the anim folder under the res of the project, and then create two xml files: cycle. xml and myanim. xml cycle. xml: myanim. xml: then use the Animation effect in the activity: Animation anim =

Android applications are in single-threaded mode. The single-thread mode requires two things to be remembered: 1. Prevent UI thread blocking 2. Ensure that the Android UI toolkit is accessed only in the UI thread. The single-thread model principle

The button of the rounded corner is very aesthetic to implement a flat UI, but it is not too difficult to implement it. Create the xml file shape. xml in drawable-mdpi under the res directory, as shown in: shape. xml main. xml uses shape

Import java. io. *; import java.net. serverSocket; import java.net. socket; import java. util. *; public class MyServer {public static void main (String [] args) throws Exception {ServerSocket server = new ServerSocket (1000); Socket clink = server.

The layout of Android is divided into five categories: FrameLayout (Framework layout), LinearLayout (linear layout), AbsoluteLayout (absolute layout), RelativeLayout (relative layout), and TableLayout (table layout ). Each layout has its own layout

The following steps are required for a complete Android package: compilation, code obfuscation, apk packaging, signature apk, and apk optimization. To accommodate the use of NDK, here we use a project TestJni with native code. Create a local.