Android

Android uses the app to set the system date and time For android 2.3 For android 4.0 The test is feasible, but the ROOT permission is required.   import java.io.DataOutputStream;import java.io.File;import java.io.IOException;import

Reprinted please indicate the source:Http://blog.csdn.net/oyangyufu/article/details/25841727 The drawing is as follows:   Program code: Need to redefine the parent class virtual function draw () 1. Add the following header files to the

Practical shortcut: Ctrl +/or Ctrl + Shift +/comment (// or /*...*/)Ctrl + D copy rowsCtrl + X Delete rowsQuick Fix alt + enter (modify/cast)Code prompts alt +/Ctr + G locate a rowShift + F6 reconstruction-RenameCtrl + R replace textCtrl + F search

Implementing Listview in Android is hard for new users to understand. After reading a number of articles, I feel that the following ideas can be used to make new users better understand (and keep records so that they do not forget it later ). Can

  I want to take a taxi application source code. Recently I found a taxi project source code based on Android. This project is a medium-sized project of a company, which only includes the source code of the client project, without the

Android Content Provider Guides   Content Providers Manages access to structured datasets. They encapsulate data and provide a mechanism to define data security. Content providers is the standard interface for data connection between different

Why is there a thread synchronization concept? Why synchronization? What is thread synchronization? First look at a piece of code: package com.maso.test;public class ThreadTest2 implements Runnable{private TestObj testObj = new TestObj();public

When TabHost implemented by ActivityGroup is switched from tab1 to tab2, the activity in tab1 is reloaded. Public class MainUIActivity extends ActivityGroup {private Context context = this; private TabHost mTabhost; private String TAB1 = "Homepage"

Features Make asynchronous HTTP requests, handle responses in anonymous callbacks HTTP requests happen outside the UI thread Requests use a threadpool to cap concurrent resource usage GET/POST params builder (RequestParams) Multipart file

Before your game is ready to be released, you need to compile it into a release version, and add-m release to the command. The compilation command is as follows: Cocos compile-p android-m release After compilation, generate xxx_release_unsigned.apk.

· This article mainly describes how to return the object converted to Json, update the download progress, and cancel the Request at any time. 1. Json designated conversion to object return In the previous article, the basic framework has been set

Previous articles introduced the Android Touch event (MotionEvent) transfer mechanism from the Framework layer. This article describes in detail some of the MotionEvent members and methods. MotionEvent is helpful for developing special effects such

This article is based on apkplug V1.6.8.   The IMThemeDemo provides a simple chat bubble switching function, and the topic package (plug-in) is hosted on the apkplug ECS. To read the complete code of the project, read the plug-in hosting service

1. The mp4 COPY method under rk1_8_v4.2 \ frameworks \ base \ data \ videos! A. In fact, in our original situation, the contents in this directory were not copied to the xxx/system/media/video directory, but the sounds directory was copied. Why

This article is followed by the example of the include tag above, address http://blog.csdn.net/jason0539/article/details/26131831 The viewstub control is used in the layout of the previous article. Now let's talk about its functions and

Do not use setImageBitmap, setImageResource, or BitmapFactory. decodeResource to set a large image,Because after decode is completed, these functions are ultimately completed through the createBitmap on the java layer, and more memory is

Each time an application runs, the application class of the application remains instantiated. You can complete the following three tasks by extending the applicaiton class: 1. Respond to application-level events broadcast during android runtime,

1. Create an android Application normally 2. Set the main application project of the OSGI framework as the reference project of the bundle. In eclipse, go to build path-> configure build path-> projects to set. 3. create and generate manifest. mf.

Concepts 1. Some Basic Concepts 1. Length (actual length): inch, inch 2. Resolution: density dpi (density) of pixels per inch) 3. pixel: px 4. dip formula: px/dip = dpi/160, So dip is similar to inches, length (dp = dip, sp is similar to dip) dip = 1

1. Create a jni/libs folder under the project. jni is the same as the original libs, and put all. so files under the new libs file. 2. Add the following content to the build. gradle file to android {}. Task copyNativeLibs (type: Copy ){From (new