The content of this release is in Article 2 of the original Android tutorial of guoshi studio, enterprise-level Android Development"Android development path"This part mainly includes the android development environment construction and simulator
Relativelayout is one of the most common layout methods in actual layout. Relativelayout can be used to set the positions of a view relative to other views. These positions can include the upper, lower, and left views. Therefore, it is more flexible
In Android, you need to use the graphics class to display 2D images.
Graphics includes canvas, paint, color, bitmap, and other common classes. Graphics supports drawing points, lines, colors, 2D ry, and image processing.
1. Color
There are
GetlocationonscreenCalculate the x and y values of the view in the global coordinate system. (Note that the value is counted from the top of the screen, that is, the height of the notification bar is included) // obtain the absolute coordinates
1. Introduction
Used for data transmission between different activities
2. Important Methods
Clear(): Clear all stored data in this bundle ing.
Clone(): Clone the current bundle
Containskey(String key): returns the value of the specified
The checkbox check button is a special type of button with two statuses, which can be selected or not selected. You can now define the multiple-choice button in the layout file, and then perform event monitoring setoncheckedchangelistener on each
1. Create a bitmap image and specify the size; 2. Create a new canvas on the image, draw it on the canvas, and save it; 3. File directory to be saved. Note that if the written directory is "/sdcard/song/", you must first create (file. mkdirs )..
4.
Introduction
For details, refer to the blog post: Android learning notes. Advanced 15: shader rendering.
PublicBitmapshader(Bitmap bitmap, shader. tilemode tilex, shader. tilemode tiley)
Call this method to generate a Renderer with a
Sax is a parser that consumes less memory and is fast to parse. It uses event initiation and does not need to parse a complete document, instead, check whether a part of the document conforms to the XML syntax in order of content. If yes, the
context is widely used in our actual development, such as startactivity (...) /Getresources ()/getsharedpreferences (...) /Getsystemservice (.) in the book, context is understood as an Application Scenario. An activity instance is an application
Customer requirementsAfter the headset is pulled out during FM playback, FM appAppears"Unplug the headset and FM stops"Prompt box, And thenAutomatic close
Modify fmradioservice. Java 1. Add the following import to display the toast
/// AAAAA
The three attributes are used to adapt to the horizontal or vertical size of the view. A Layout Based on The View content or size is more convenient than specifying the view range accurately.
1) fill_parent
Setting the layout of a component to
The blog for Android-idea posted on the internet is http://blog.csdn.net/cjjky/article/details/6337172.
In practical applicationProgramDuring development, we sometimes need to set the activity to full screen display. Generally, we can set the full
The establishment of the netbeans environment mainly depends on the nbandroid plug-in. Project address:
Http://www.nbandroid.org/p/installation.html
Development machine: Windows 7
IDE: netbeans 7.3
Step 1: Install the plug-in
Start netbeans and
ArticleDirectory
1. Use shared preferences:
2. Use file:
3. Network Space: (omitted)
4. SQLite database:
1. Use shared preferences:
Save Android applications in one sentenceProgramConfiguration information:
Save:
description and copyright notice of this tutorial
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The content of this release is in the original Android tutorial of guoshi studio, "big talk enterprise Android development "."Log output, unit test and debugging"This section describes how to use log output, unit testing, and other methods in
In the previous chapter, Android Local Video Player Development -- ndk compilation of FFMPEG can obtain the compiled FFMPEG library. Next, we call FFMPEG for decoding. Here we first decode the audio and then play the audio, at the same time, in
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