notes stored on android

Android learning notes-save Files)Android devices have two types of file storage areas: internal storage and external storage ). This name comes from early Android, when most Android devices provided two storage methods: built-in non-Loss memory (internal storage) and remova

="fill_parent" android:layout_height="fill_parent" /> linearlayout> Add permissions to 17 rows in the Androidmanifest.xml file XML version= "1.0" encoding="Utf-8"?> manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.android.webview.activity" android:versioncode="1" android:versionname="1.0"> uses-sdk android:minsdkversion="ten" /> application android:icon="@drawable/icon" androi

= nowx; Starty = Nowy; Break; CaseMOTIONEVENT.ACTION_UP: Break;default: Break; }The //return value is true, the event is consumed and is not passed down; The //return value is False, the event is not consumed and continues to pass downward; return true;}Fourth Step , add "bold brush" and "Change color function"// 颜色内容int[] colors = { Color.RED, Color.GREEN, Color.BLUE };privateint colorIndex;// 修改颜色publicvoidchangecolor(View v) { 3]);}// 画笔宽度privateint paintWidth;// 加粗画笔publicvoidovers

?Packagename_preferences.xml.Modified with the Preferencemanager.getsharedpreferencesname method.What does the Android SDK support for getting file input and output streams?1:inputstream and OutputStream Way.http://blog.csdn.net/ztp800201/article/details/73221102:context.openfileoutput and Context.openfileinput objects.Http://blog.sina.com.cn/s/blog_6e5195850100zssn.htmlWhat is the SAX engine's process of parsing XML documents?Initialize--start proces

I am a beginner in fragment and have written a few simple examples. Now I propose to help you learn and study. Android fragment Study Notes (1) The focus of this program is to put two fragment in an activity. The page layout is shown in the following code (fragment_hide_show.xml ): Each linearlayout has a fragment. The following is the Java code implementation. There are three main types. java file, in w

Android Study Notes (24): progress bar component and its subclass ProgressBar is used as the progress bar component. It also derives SeekBar (drag bar) and RatingBar (star rating bar ). XML attributes supported by ProgressBar: Attribute Name Related Method Description Style Set ProgressBar to specify the style Android: inde

Sencha Study Notes 2: package your first Sencha Android app apk installation package, senchaapk We have a preliminary impression on sencha through the introduction in the previous translation official Article. At the same time, we also generated the first sample application code framework through this wizard, many people may think that the next step should be based on the detailed information prompted by th

In the previous article, we checked the layout structure in the apk source file of QQ and completed the interface of our first application following QQ's model. For details, see the column "growth notes for Android cainiao. In this article, let's take a look at how this interface is presented and how it works. Let's take a step-by-step look at the mysteries that remain in our hearts. Some may have such ques

Android learning notes: AsyncTask implements file download tasks. androidasynctask (1) This file is mainly used to demonstrate how to download images from Asynchronous tasks. (2) The layout code is as follows: An ImageView is used to store the downloaded image, and a Button is used to start asynchronous task download. (3) Control Package com. example. asynctask_download; import java. io. IOException; im

Ubuntu Linux10.04 above version of the operating system.GNU c is an extension of standard C and is the most commonly used C language compilation environment under Linux.Five Linux device drivers:device-driven communication hardware and software, and distinguish between the hardware, to make a clear responsibility for the engineers and engineers, do not need soft and hard balance. device driver and hardware direct interaction abstraction interface, so that the application software can be driven

Android SDKThe Eclipse installation and setup notes in the development environment are described in this article, mainly for understanding and learning.Android SDKEnvironment setup, detailsAndroid SDKFor more information, see this article. 1. Install Eclipse To eclipse, address: http://www.eclipse.org/downloads/download.php?file=/technology/epp/downloads/release/helios/SR2/eclipse-java-helios-SR2-win32

, Android API, Revision 1 Google AIPs Intel x86 Atom sytem Image API Revision 3 Sources for Android SDK, API, Revision 1 Android support Repository, revision 11 Google Repository, Revision 15 New project, prompted to download Gradle. (Next, although the previous download is good, and set the Gradle_home, does not work!) This step

Android Study Notes (1) AndroidManifest. xml file And Differences and usage 1. It is an officially defined permission. It is the permission that needs to be declared when someone else's things are called. The permission defined by the user is the permission that someone else needs to declare when calling this program. Therefore, you generally do not need to declare a permi

The first part, the building of Android development environment1. Go to http://www.oracle.com/technetwork/java/javase/downloads/index.html to download the latest version of the JDK and install, configure environment variables.2. Go to http://www.eclipse.org/downloads/to download the latest version of Eclipse and install it.3. Download the Android SDK and install it, HTTP://PAN.BAIDU.COM/S/1I3GGWHN4. Downloa

Self-learning Android notes -- data transfer case in Activity (user registration), androidactivity1. Create the program activity_main: In the above Code, a relative layout RelativeLayout is defined. An EditText and a Button are created in the layout for entering the content and clicking the "Submit user information" Button for data transmission.2. Create the Activity interface activity02 for receiving da

Android open-source project SlidingMenu Study Notes (1), androidslidingmenu SlidingMenu is a popular UI Technology in applications, which can achieve a dazzling sliding effect. SlidingMenu is a Project hosted on Git and is open-source and free of charge, slidingMenu is imported to the required project as a Library. SlidingMenu may be implemented in different ways in the future. You can download it at the fo

Intent notes in AndroidIntent is a run-time binding mechanism, which can be used to connect two different components while the program is running. With Intent, your program can express a request or willingness to Android. Android selects appropriate components based on the content you want to complete the request. For example, if an Activity wants to open a webpa

Android technology notes-(install and uninstall an application broadcast) Android technology notes-(install and uninstall an application broadcast) This article summarizes the broadcast usage of installing and uninstalling apps in Android. In the

respondingmain thread mechanism: when main threads execute for more than 5 seconds and do not respond to the next event, ANR may occurthe role of the main thread: UI creation, updates, handling of eventsOnly the original thread, created a view hierarchy can touch its viewsOnly the thread that created the control will be able to update the control handler Messaging mechanism: implementing the UI interface in a newly created thread(1) MessageQueue Message Queuing:The MessageQueue is used for st

= "Http://schemas.android.com/apk/res/android" Package= "Com.android.webview.activity"Android:versioncode= "1"Android:versionname= "1.0"> USES-SDKandroid:minsdkversion= "Ten" /> ApplicationAndroid:icon= "@drawable/icon"Android:label= "@string/app_name"> ActivityAndroid:name=". Mainactivity "Android:label= "@string/app_name"> Intent-filter> ActionAndroid:name= "Android.intent.action.MAIN" /> catego