In Java, we can use socket programming to implement chat rooms. This is also true for Android, because Android fully supports TCP and UDP network communication APIs of JDK. We can use serversocket and socket to establish network communication based on TCP/IP protocol, or use datagramsocket, datagrampacket, and multicastsocket to establish network communication based on UDP protocol. The following is a
Simple tutorial for Android-24th guns (Baas-based user Table query function !), Androidbaas
Next, we registered several users in the previous article. The user table is as follows:
Next we will use ListView to display the data in the table!
First, let's take a look at main. xml:
Then MainActivity. java:
Package com. example. listviewdemo; import java. util. list; import cn. bmob. v3.Bmob; import cn. bm
Simple tutorial for Android-65th gun (custom control for digital LCD clock Demo)Next we will study how to implement a digital LCD clock, which is essentially a special effect.First, create a layout file:
The XML Attribute of TextView in Android contains several attributes of shadow.
ShadowDX, shadowDy, and shadowRadius indicate the horizontal and vertical offse
Android: webview implements a simple browser
Enables the browser to return to the forward homepage and exit the URL entry function.
The comment is very clear.
First, layout files
MainActivity
Package com. example. webview; import android. OS. bundle; import android. app. activity; import
version of SUPPORT-V7, this article found this jar on V21: sdk\extras\android\m2repository\com\android\support\ recyclerview-v7\21.0.0, in the directory will Recyclerview-v7-21.0.0.aar decompression, take out Classes.jar, You can change the name to: Android-support-v7-recyclerview.jar, at least I did.All right, get into the demo theme.1.demo structure2. Example3
Enter a phone number in the text box and click "call. (The correctness of the number is not verified in the small example)
1. Create an android project named "Phone Dialer. Because the new version of ADT supports Chinese projects, you can use Chinese directly. The basic project directory is as follows:
2. Develop the dialing interface.
Open the res/layout/activity_main.xml file of the project, and a visual interface tool will appear on the right. All
Android Learning Organization _ Service simple application. Music player
1. Because we need to use Service, we need to define it in the AndroidManifest. xml file.
2. Then, put the music to be played in the res/raw folder.3.// Music. java FilePackage com. edgar. playservice;
Import com. edgar. playservice. R;Import com. edgar. playservice. R. raw;
Import android.
The simple text message sender has the following effects:
The java code is as follows:
Package com. mxy. smssend; import java. util. arrayList; import android. app. activity; import android. OS. bundle; import android. telephony. smsManager; import android. text. textUtils
This example tells the Android imitation Baidu Google search automatic prompt box Autocompletetextview simple application. Share to everyone for your reference, specific as follows:
Now we almost all use the internet Baidu or Google search information, when we enter one or two words in the input box, will automatically prompt us the information we want, this effect on the
Android provides simple route navigation.
Google map provides a simple Android navigation function.
The starting interface is still this:
Added the following options:
For example, choose to ride:
Wait a moment to load the data.
The alternative route will be provided:
Select the first alternative route.
Selec
I thought using list in Android should be a simple task, but -- I am wrong! I have been reading books, followed by book examples.ProgramI learned to write a list, but I still have no skills. Today, I suddenly saw a video tutorial, and I felt a little confused. This video tutorial is www.mars-droid.com, beginners can download learning, or very good, painted color! Haha ~
Now, let's get started.
In the
Implementation of a simple phone call program for Android
Step 1: Interface Design
Step 2: overall implementation:
Phone call is the main function of mobile phones. The first program in Android is to implement the call function.
1. First, add the corresponding text information to strings. XML in the values directory.
2. Implement the page layout in layout and i
In this section, we will learn how to create an interface with text input boxes and buttons in XML. The next lesson will learn to make the APP respond to buttons--when the button is pressed, the contents of the text box are sent to another Activity.Android's graphical user interface is built from multiple views (view) and view groups (ViewGroup). View is a common UI form widget, such as button, Text field, and ViewGroup is an invisible container used
Android is a simple method for loading images asynchronously,
First, I have abandoned this method. I used it before and found that the loading speed is not good. I am not very careful about it.
Now I use volley. It is only critical to everyone.
Package com. souya. seller. util. ex; import java. io. file; import java. io. fileInputStream; import java. io. inputStream; import java. lang. ref. softReference;
Today, when I was working on a simple recorder, the recorder was always unable to be instantiated and used normally. Later I searched for problems, tried them one by one, and finally confirmed that the two settings had been reversed, however, it is depressing that we cannot work normally. I found a tutorial and did not mention it in the tutorial. The two cannot be reversed. Just give yourself a warning and hope to see it, people who do not know this p
effects cannot be captured .. That is, rotate a circle .. Nothing nice .. ...
Paste the code of the activity and service in the playlist ~~ These two are critical ~~
Package COM. musicplayer; import android. app. activity; import android. content. intent; import android. OS. bundle; import android. view. menu; imp
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.