android app development tutorial beginner

IOS 9 app development tutorial-custom app icons and real-machine testingIOS 9 app development tutorial-custom app icons and real-machine tes

, data); if (requestcode==10) {Toast.maketext (this, "photo successful", 0). Show (); }if (requestcode==20) {Toast.maketext (this, "camera success", 0). Show (); }} public void video (View v) {Intent Intent = new Intent (); Intent.setaction (mediastore.action_video_capture); Intent.putextra (Mediastore.extra_output, Uri.fromfile (New File (Environment.getexternalstoragedirectory (), " HAHA.3GP "))); Intent.putextra (mediastore.extra_video_quality, 1);//Set the video quality Sta

Reprint this article please indicate the source: http://blog.csdn.net/qq_32059827/article/details/52203347 Click to open the linkBefore customizing the progress bar, learn about the use of shape.First, create a new drawble directory below the Res directory (it will be simple if you customize the state selector)Second, create a new Android.xml file, Find shape, click FinishWe can see that the shape attribute is not many, as follows:Now step through the common use of attributes:1, (1), Radius: Rep

Blocke.printstacktrace ();} catch (IOException e) {//Todo auto-g Enerated catch Blocke.printstacktrace ();} return sb.tostring ();} /** * MD5 encryption of strings passed in * @param str * String to be encrypted * @return * string Md5 encrypted result */public static string MD5 (String str) {Stringbuilde R sb = new StringBuilder ();//String container try {//Get MD5 dongle. public static MessageDigest getinstance (string algorithm) returns the implementation of the specified digest algorithm. Th

Quick-cocos2d-x Beginner's Game tutorial (iv)We have already explained the framework and code structure of quick, and then we will formally enter into the development of the game in the beginning of this chapter. Of course, in the course of development, if we encounter the knowledge points and concepts worth mentioning, we will give you a detailed explanation.Hah

)// Unchecked to the selected state is performed here: {System.out.println ("swim is checked");} else//is executed here by the selected state to the unchecked state: {System.out.println ("Swim is Unchecked");}}); runbox.seToncheckedchangelistener (New Compoundbutton.oncheckedchangelistener () {@Overridepublic void oncheckedchanged ( Compoundbutton Buttonview, Boolean isChecked) {//TODO auto-generated method stubif (isChecked) {System.out.println ("Run is checked ");} Else{system.ou

representing 256 colors Requires 256 numbers: 0-255,0000 0000-1111 1111 Use a binary number of length 8 Consumes 8/8=1 bytes per pixel Total size = Total pixels of the picture * the size of each pixel occupies =320000*1=320000 bytes 24-bit bitmap: Each pixel occupies 24 bits, which is "3 bytes", so it is called a 24-bit bitmap. Total size = Total pixels of the picture * the size of each pixel occupies =320000*3=960000 bytes Another way

Before backing up the text message generated by the generation of XML is manually spelled, there is a problem: when the text message in the presence of Define a layout file for the activity, with the knowledge simply adding a button:See the code in the main activity as follows:Package Com.itydl.xmlserializer;import Java.io.file;import Java.io.fileoutputstream;import java.io.IOException; Import Java.util.arraylist;import Java.util.list;import Org.xmlpull.v1.xmlserializer;import Com.itydl.createxm

Android App for H5 page Nesting development authentication method: 1, after installing the app, enter the handset developer option . 2, the "Show layout boundary" switch open. 3, you will find that your screen has a lot of rules and regulations, these are based on the traditional

not changed to green, left click the icon select Apache Select Service Administration choose to restart the service, the icon will be green after the, if you are not sure if you can open the browser in the Address bar to enter http://localhost/if the successful opening of the page is the successful installation, this time wampsever can be used.Then look at Phpstorm, create a new project, a name for your project area, find a good place to put it, on the right side will appear the project folder

VS 2015 cross-platform mobile app configuration tutorial, vs2015 development tutorial Preface In order to use VS 2015 to develop cross-platform mobile apps, VS 2015 has been installed many times and has encountered many pitfalls before it finally figured out how to configure C # To develop mobile apps normally, we will

}protected void Ondestory () {Super.ondestroy (); Activitycollector.removeactivity ( this); //So where do you want to exit the program just call Activitycollector.finishall ()? }}PsThe code that kills the current process can be added after all activities have been destroyedAndroid.os.Process.killProcess (Android.os.Process.myPid ());　　KillProcess () can kill a process to accept a process ID parameter, and can only be used to kill the current process, cannot kill other processes.Beginner