Android

1. First create a class to inherit the view 2. Override the ondraw (canvas) Method 3. Implement a paint class. This class can be viewed as a paint brush and can be used to set attributes such as color and line. 4. Use canvas to draw images on the

ArticleDirectory 1. Text class: 2. Button class: 3. Image class: 4. Time Control: 5. Progress display: 6. Navigation: 7. Video Media: 8. Dialog dialog box 1. layout class: 2. layout class for the adapter: 3.

The telephonymanager class provides a series of get methods for accessing the status and information related to mobile communication. The information includes the status and information of the mobile phone SIM, the status of the Telecom Network, and

Come and have a look at the android games! 1. Obtain the app information installed on your mobile phone (excluding the app information that comes with the system ): Java code: 1 private String getAllApp() { 2 String result = ""; 3

AndroidKeyboard System The life cycle of the keyboard system in Android starts from the startup of the system to the shutdown of the system, during the entire process, we hope that any button that is pressed will have an event. The investigation

Basic knowledge of push MethodsWhen developing an application that requires interaction with the server, we basically need to obtain the server-side data. For example, in earthquake timely, we need to obtain the latest seismic information on the

The usage of Android intent is summarized comprehensively. Intent is something special in Android. You can specify the action (such as view, edit, and dial) to be executed by the program in intent and the information required when the

Preface The Android platform does not provide specific documentation on how to design and work the Android Application. From the very beginning, Google showed that they had no intention of specifying what Android applications could accept and what

Due to System Restrictions, only the voice of the microphone can be recorded, and the voice of the other speaker cannot be recorded. You may need to change the kernel to implement two-way recording; When the phone is connected and the phone is hung

From: http://www.cnblogs.com/elleniou/archive/2012/05/17/2505630.htmlOpenfileoutput () First, we will introduce how to store data using files. Activity provides the openfileoutput () method that can be used to output data to files, the specific

Refer to Region: Public class pagewidget extends view {private bitmap foreimage; private bitmap bgimage; private pointf touchpt; private int screenwidth; private int screenheight; private gradient; private gradientdrawable gradient; private

Previously, the iPhone generation was able to be cracked and installed and run Android. Two or three weeks later, developers made great progress and the iPhone 3G mobile phone was able to run Android, this includes Browsing webpages, running

Android is based on the Linux kernel. For friends who like to study the underlying layer, it is natural that they will not miss the opportunity to understand something on the Linux level. Of course, the final goal is to figure out how Linux is

Sometimes you want to do something after startup, such as creating directories on sdcard and modifying/Data Access Permissions, which can be put in init. how can I do this in RC? recently, due to the need of my work, I have made some research in

Due to work needs, today we have studied how to create folders and modify their permissions in Android. We need to know that each application package has a private directory for storing data (similar to folders ), only applications of this package

If you only modify the content of a module, but execute make every time, the last wait is a long time.To compile a module, you only need to execute mm in the directory or its subdirectory of your module to compile a separate APK!Procedure:1) Open ~ /

Wifimanager wifimanage = (wifimanager) Context. getsystemservice (context. wifi_service); // obtain wifimanager // check whether WiFi is enabled if (! Wifimanage. iswifienabled () {wifimanage. setwifienabled (true);} wifiinfo = wifimanage.

The previous response explains ibinder. This is a detailed explanation of parcel. The following is an explanation of the android SDK documentation:Parcel is a container mainly used to store serialized data, which can then be passed between processes

(1) connectivitymanager In Android, The connectivitymanager class represents the network connection service, which is used to monitor the network connection status, configure invalid reconnection, and control the network antenna. To obtain a

AndroidThe question of the difference between a real machine and a simulator is an eternal topic. Why can't you finish. The existence of a simulator plays a role in it, but do not trust it in everything. Unless you are an android pure upper-layer