simple keyboards for android

This article undertakes, Android Development V-bomb: simple clock (alarm clock) and Android development six bullets: Simple clock (timer), this part is about the stopwatch.LayoutAlso create a new Class (Stopwatchview) and extend it from linearlayout, and use it as a layout.ID="@+id/tabstopwatch"Android:layout_width ="M

adjustable.AdvantageThe advantage is that instead of changing the logic of the original code, only two replacements are needed: Nodoubleclicklistener instead of Onclicklistener,Onnodoubleclick instead of onclick. The structure of the code does not need to be changed (* * Compare the above code 0 with code **3),No need to worry about handling changes to the state of the button these additional judgment logic, just focus on business logic, simple and e

Let's take a look at the effect chart. is simply to draw the content according to the track that the finger writes down First, realize The following points are mentioned in a previous article about the custom controls given by the Android official: CREATE view Handle layout of view Draw View Interacting with a user Optimize a defined view Just follow this step to complete today's custom control 1. Create Viewthe last part of this article,

Super. onoptionsitemselected (item); the } +}"7" Writing Menu_main.xmlItemAndroid:id= "@+id/id_map_common"Android:title= "@string/map_common"app:showasaction= "Never" /> ItemAndroid:id= "@+id/id_map_site"Android:title= "@string/map_site"app:showasaction= "Never" /> ItemAndroid:id= "@+id/id_map_traffic"Android:title= "@string/map_traffic"app:showasaction= "Never" />"8" writing string.xml stringname= "Map_common">General Mapstring> stringname= "Map_site">Satellite mapstring> s

An introduction to the Android Anti-compilation tool and a simple and practical approachThe purpose of Android anti-compilation is simply to see the APK's XML, Resources and code:How to get the code: Extract the APK file directly--get Classes.dex file--and use Dex2jar classes.dex Classes.jar generate Jar file--[optional extract jar file]-- View source code using

relatively low picture qualityDRAWABLE-MDPI: Picture of normal image qualityDRAWABLE-HDPI: HD picturesDRAWABLE-XHDPI: Ultra HD imageDRAWABLE-XXHDPI: Ultra HD imageThe layout file for the activity in the application is stored under the Layout folder.The Strings.xml in the value folder is the string key value pair used in the applicationAndroidmanifest.xml file: This file is a manifest file for an Android application, such as setting the application's

use, the button is used to take a photo. In fact, you can also use the button to take a photo, as long as you make a simple modification to this class. The call is as follows: Copy codeThe Code is as follows: @ Override Public boolean onKeyDown (int keyCode, KeyEvent event ){ // TODO Auto-generated method stub If (keyCode = KeyEvent. KEYCODE_DPAD_CENTER) Sf. takePicture (); Return super. onKeyDown (keyCode, event ); } To use a camera and an SD card

, you can browse to open the apk you want to decompileWith the anti-compilation, you can learn what the application uses for the 3rd-party library file, how its code is written, and so on.However, if the APK is obfuscated, then the name of the class file you see and the name of the method inside will be a,b,c .... Style naming, so you can find that you want to know the interface code may be very laborious, found the code may seem to be very laborious, but a general idea will be obtained, with th

Simple weather forecast for Android The city is stored in the spinner class, the xml file is read, and the file is filled in the spinner. Xml files are stored in the local res/raw folder. And add listening events to the three slaves. When you select a province, the spinner of the storage city and region changes accordingly. Similarly, when you select a city, the region's spinner changes accordingly. // Wh

Simple use of TextToSpeech in Android, androidtextview attribute Android can also read the input text and use TextToSpeech. However, currently, only five languages are supported: English, French, German, Italian, and Spanish. (Sorry, there is no Chinese). The android system must be

)); LOG.E ("Mainactivity", "decrypted JSON data--1-->" +DECRYSTR); Private key encryption Start=system.currenttimemillis (); Encryptbytes= rsautils.encryptbyprivatekeyforspilt (Jsondata.getbytes (), privatekey.getencoded ()); End=system.currEnttimemillis (); LOG.E ("Mainactivity", "private key encryption time-consuming cost time---->" + (End-start)); Encrystr=base64encoder.encode (encryptbytes); LOG.E ("Mainactivity", "encrypted JSON data--2-->" +ENCRYSTR); LOG.E ("M

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

The project encountered a mail sending function, which found a lot of information on the Internet. I will not introduce them here. I just wrote out the solution I used (the simplest) Intent email = new intent (Android. content. intent. action_send); // mail sending type: no attachment, plain text email. settype ("plain/text"); // mail recipient (array, can be multiple recipients) string [] emailreciver = new string [] {"123@qq.com ", "456@163.com"};

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

The students who believe in Android development. The problem that must be met is that Google often collapses, but the beginning of learning. We also have to use the Android SDK, (a few grams in size), usually after we've loaded ADT (assuming you're using eclipse.) Android Studio doesn't need to be. ), we need to open the SDK Manager to download some tools for the