Android Opengles Learning 1

Recently, libgdx was used in the project, so I took the time to read opengles, and there was not much information about Android. However, the code pages of opengles platforms are similar, and IOS information is rich, one triangle rotation is found

Use DatePickerDialog and TimePickerDialog in Android

We want to achieve this effect, such:    Click set date and time:   Click settings to bring up the following content:        The last point is to display the date and time in the preceding text box.       Implementation Code: Package org. crazyit.

Android obtains contact information from data

// Jump to the contact pagePrivate void pickContact (){// Create an intent to "pick" a contact, as defined by the content provider URIIntent intent = new Intent (Intent. ACTION_PICK, Contacts. CONTENT_URI );StartActivityForResult (intent,

Planning for Multiple Touchscreen Sizes Planning Multiple touch screen Sizes

The exhaustive screen map from the previous lesson isn't tied to a participant device form factor, although it can generally look and work okay on a handset or similar-size device. but Android applications need to adapt to a number of different

Android font size is automatically adjusted based on resolution

There are too many mobile phone devices and the resolution is different. Most methods to adapt to the font on the Internet are to define the values320 × 480 or value-hdpi method for processing.The first type is miserable. The resolutions of many

In android, how do I add a desktop icon and delete an icon after uninstalling a program?

1: The create icon is as follows: Intent intent = new Intent ();Intent. setClass (this, SplashActivity. class );Intent addShortcut = new Intent (ACTION_ADD_SHORTCUT );Parcelable icon = Intent. Reset cuticonresource. fromContext (this,R. drawable.

Android study Note 12: Image Rendering (Shader)

In Android, the Shader class is provided for rendering images and some geometric figures. The Shader class includes five direct subclasses: BitmapShader, ComposeShader, LinearGradient, RadialGradient, and SweepGradient. Here, BitmapShader is used

Android Handler advanced

Now we have a problem first. We use myThreadHandler. sendEmptyMessage (0); To send a message object, how does Handler receive and process the message object? First, I will draw a data structure diagram:     From this figure, we can clearly see that

Connect and disconnect the android app

Package com. ebupt. phonerecorddemo. server; import java. lang. reflect. method; import android. content. context; import android. content. intent; import android. telephony. telephonyManager; import android. util. log; import android. view.

Android learning-various dialogs

In android programming, the dialog box is very useful. However, sometimes the requirements for the dialog box are different. Now, we will summarize the types of the dialog box and the handling situation of the event. 1. Simple dialog

G-Sensor process in Android

1. What needs to be done to make G-sensor work normally: The G-sensor driver file includes: Driver/i2c/chips/lis331dl. cDriver/i2c/chips/sensorioctl. hInclude/linux/lis331dl. h And in the/kernel/arch/arm/mach-s3c6410/mach-ur6410.c file i2c chanel1

The Android client reads the image and other information of the PHP server and uses the ListView column to implement the cache function.

First, I implement this function in a way that is easy to understand. On the server side, create an index. php file to read MySQL database information: Index. php: $ Link = mysql_connect ("localhost", "root", "123456 ");Mysql_query ("set names utf8 "

Add configuration item Page in Android ToDoList

  The task of this article is to add a configuration item Page (Reference) on the simple ToDoList program ). This Reference page is also very simple:   This ToDoList now has two pages, the home page can fill in To-Do items, then the manu key

Disable Android StatusBar drop-down

There are many hidden services in Android, and StatusBarManager is one of them, which can be seen in Context. java: [Java]/*** Use with {@ link # getSystemService} to retrieve a {@ link* Android. app. StatusBarManager} for interacting with the

Android Application Development Study Notes Intent

What is Intent? Let's take a look at the definition on the Android Official Website: An intent is an abstractdescription of an operation to be performed med. it can be used with startActivity tolaunch an Activity, broadcastIntent tosend it to any

Highlights of data storage technology for Android

For the source code running, see the end of the article. This article mainly introduces 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

Common Operations for android music players

1. [Code] variable declaration 01/* variable Declaration */02 private ImageButton playBtn = null; // play and pause 03 private ImageButton latestBtn = null; // last 04 private ImageButton nextButton = null; // next 05 private ImageButton forwardBtn =

Port oprofil performance monitoring tool to Android

For oprofile porting, cross-compilation is performed on the Ubuntu Server 10.04 platform and transplanted to Android. After practice, the following steps are correct for cross-compilation, which cannot be properly run in other environments, the

Android: how to set the app to be disabled by system k

There is one way to set the app to never be killed, AndroidManifest. add: android: persistent = "true" to the xml file. After the app is set in/system/app, the app is upgraded to the system core level without being killed, the stop operation is also

Use Ant 1 in Android development: Environment setup and getting started

Configure the Ant Environment Download Ant: http://ant.apache.org/bindownload.cgi On windows, you should select a zip package to decompress the zip package to a directory. Open the system environment variable, and click New in the system variables

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