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Android system development (4) -- AutotoolsComposition of Autotools 1. autoscan Autoscan is used to scan the source code directory to generate the configure. san file. configure. san contains the basic options for system configuration, which are macro definitions. We need to change its name to configure. in. 2. aclocal Aclocal is a perl script program. Aclocal au

1. click the button, specify the action and uri, and set the result code (ResultCode) to reach the Gallery of the default album on the mobile phone. The Code is as follows:1. public void onClick (View v ){2. // TODO Auto-generated method stub3. Intent intent = new Intent (Intent. ACTION_PICK,4. android. provider. MediaStore. Images. Media. EXTERNAL_CONTENT_URI);

Android Data Binding code practice (farewell to findViewById) (4), androiddatabinding Data Binding practice (1)Data Binding Syntax Parsing (2)Advanced Data Binding usage (III)Well, after learning Data Binding in the first three articles, we can find that its power is as follows: 1. Use the MVVM mode to clear the entire project structure2. Connecting views and

Basic tutorial for Android -- 8.3.7 Paint API -- Xfermode and PorterDuff (4)This section introduces: In the previous section, we wrote the first example about the use of Xfermode and PorterDuff: Implementation of ImageView for rounded corners and circular images,We have realized the benefits brought by PorterDuff. Mode. DST_IN. In this section, we will continue to write examples for practical practitioner

In Android, there are 4 activation modes for the activity, namely:"Standard" (default)"Singletop""Singletask""SingleInstance"They are mainly different from the following:1. How to decide which task to belong toThe target TASK for the ACTIVITY of "standard" and "Singletop", and the sender of the received intent within the same task, unless intent includes the parameter flag_activity_new_task.If the Flag_acti

Android Network Programming (4) parsing Volley from source code 1. Volley Structure As you can see, Volley is divided into three threads: the main thread, the cache scheduling thread, and the network scheduling thread. The request is first added to the cache queue, if the corresponding cache results are found, the cache is directly read and parsed, and then the request is called back to the main thread. If

Invoke Action (as if it should be invoked, sorry). Add a description of Intent-fliter in Androidmanifest.xml, see: Pro Android Learning Note (11): Learn about Intent (medium).action Android:name= "Android.intent.action.VIEW" />category Android:name= "Android.intent.category.ALTERNATIVE"/>Alternative Menu CodeLet's see how to add the alternate menu to the Optionmenu. Alternative menu can also be loaded in Submenu,context menu.@Overridepublic boolean O

Piglet's Android starter Road Day 4-part 3--handler message passing mechanism of Android event processing mechanism------------ Reprint Please specify the source--coder-pigIntroduction to this section:In the previous two sections, we have learned more about two kinds of event handling mechanisms: Listening and callback.Seemingly completed the

Android video recording tutorials from getting started to getting started (4) ---- Camera Parameter, androidparameter Camera provides a method called setParameters to help developers set Camera parameters. The getParameters method of Camera can be used to obtain the parameters currently set for the Camera. The following describes the usage of several parameters used for video recording. 1. Set the PreviewSi

Java 4 Android: all objects (1) We always like to use C ++ and Java for comparison. Although I have used both of them, I forget them. My first job gave me the oldest language (relative to the two) C. Of course, the conversion from the downloaded library to Android forces the user to return to the object-oriented world... 1. Use a reference operation object. In C/

(meaning please refer to my first article "Android Audio Development (1): basic knowledge")The third part, belongs to "data" information block, the "subchunk2size" this field to record the length of the binary raw audio data stored later.Analysis here, I think we should understand, in fact, do a multimedia format parsing, is not a particularly complex thing, plainly, the format is a specification, tell you, my binary data is how to store, you should

, and the Android:stretchcolumns property solves the problem If the number of columns in a row is not the same as the other rows, merge the cells with the Android:layout_span property Example code for TablelayoutTablelayoutxmlns:android= "Http://schema.android.com/apk/res/android"Android:layout_width= "Match_parent"Android:layout_height= "Match_parent"Android:stretchcolumns= "1" > TableRow> TextViewAndroid:layout_height=

even-numbered and5 6 intnum = 2;//represents an even number between 1-507 8 Do {9 //Implementing Cumulative SummationTen One Anum = num + 2;//the value is added 2 for each execution once to determine the next cyclic condition - -} while( );//repeat loop when value is met betwe

Four states of activity in Android:1)active/runing: After a new Activity is launched into the stack, it is at the top of the screen, at the topmost end of the stack, where it is visible and can interact with the user's activation state.2)Paused: State when activity is overwritten by another transparent or Dialog-style activity. At this point it remains connected to the window manager and the system continue

1. Get contact information from SMSJava code Contactitem getcontactbyaddr (context, final smsitem SMS ){ Uri personuri = URI. withappendedpath ( Contactscontract. phonelookup. content_filter_uri, SMS. maddress ); Cursor cur = context. getcontentresolver (). Query (personuri, New String [] {phonelookup. display_name }, Null, null, null ); If (cur. movetofirst ()){ Int nameidx = cur. getcolumnindex (phonelookup. display_name ); Contactitem item = new contactitem (); Item. mname = cur. g

]; ; //cumulative } } System.out.println (sum); Copy Code 05.20_java Language Basics (Study questions in Java and parametric transfer problems and illustrations) (master) A: Case Demo Read the program to write the results, and draw the memory diagram to explain public static void Main (string[] args) { int a = 10; int B = 20; System.out.println ("A:" +a+ ", B:" +b); Change (A, b); System.out.println

In the previous "Android custom components series [6] -- advanced practice (3)", we added the process knowledge about event distribution in Android, in this article, we will analyze the implementation of the drop-down PinnedHeaderExpandableListView. I. What is the role of the OnGiveUpTouchEventListener interface in StickyLayout? public interface OnGiveUpTouchEventListener { public boolean giveUp

I have been in touch with Linux for several years. I feel that Linux has been separated by minutes and is full of regrets. One of the biggest regrets is that I have never been proficient in Vim, it cannot fully adapt to Code development under vim. I think it is necessary to summarize the use of VIM in my recent work. however, I cannot describe how to use all Vim commands. Instead, I think it is more effective to describe the operation commands commonly used for editing

fragment Development Guide. First, your layout must contain a viewgroup object that is used to place option labels associated with each fragment object. Make sure that the viewgroup object has a resource ID so that you can reference it in the switch code of the Option label. In addition, if the content of the Option label is filled in the activity layout (excluding the operation bar), the activity does not need any layout (you do not even need to call the setcontentview () method ). Instead, yo

Fourth chapter, Android application debugging method code listing 4-1 comment out a line of key code (QUIZACTIVITY.JAVA)Code Listing 4-2 commenting out a line of key code (QUIZACTIVITY.JAVA)Code Listing 4-3 Convenient and practical debug mode (Quizactivity.java)Code Listing