how to program android

A simple, beautiful, powerful Android log program. The log program provides: Thread information Threads information Class Information Classes information method information methods information beautifully printed JSON content Pretty-print for JSON contents Clean output Jump to Source feature Gradle Compile ' com.orhanobut:logger:1.3 'Back to Top the current log

In previous articles, the listener that receives text messages will always be in the background. Even if the program is disabled, the listener will always exist and activate the main program when receiving the message. In general design, this is not the case because it is a waste of resources and does not provide a good user experience. Therefore, you need to cancel the listener after the

Cocos2d-x program in the Android startup process, cocos2d-xandroidNote: The original text is also posted on the internal forum of the company.This article analyzes the example program HelloLua provided by the cocos2d-x (the analytics version is the cocos2d-x-2.2.1) itself (under the $ (sourcedir) \ samples \ Lua \ HelloLua \ directory) to analyze the specific Sta

{ArrayList Lt x509certificate> certlist = new arraylist re-sign APK with the command line APK, there is also the simplest way to download a signed tool Re-sign.jar, the apk dragged into the tool's window generates a re-signed apk. Let me talk about the complex way to re-sign: using command-line methods. First, configure the environment, you need to install JDK,SDK Two, in the directory of the successful installation of JDK found Jarsigner.exe files, the directory of this machine is

One, engineering drawings. Second, the effect of the picture. Three, code. RootViewController.h #import Rootviewcontroller.m #import "RootViewController.h" @interface Rootviewcontroller () @end @implementation Rootviewcontroller-(ID) Initwithnibname: (NSString *) Nibnameornil Bundle: (NSBundle *) Nibbundleornil {self = [super Initwithnibname: Nibnameornil Bundle:nibbundleornil]; if (self) {//Custom initialization} return self; }-(void) viewdidload {[Super viewdidload];

Isshowingicon () {return mshowingicon; } @Override public void Writetoparcel (Parcel destination, int flags) { super.writetoparcel (destination, flags ); Destination.writebyte ((Byte) (Mshowingicon. 1:0)); public static final parcelable.creator Animation effects Now you can copy the class to the application, replace the picture resources, replace the display password box, give the user a better mobile end experience. Always pursue the ultimate, the pursuit of extraordinary. About the

It's a simple question, but it's always a bit of a problem to use after a certain amount of time. Here is a note of the Logcat steps: 1, in the activity to affirm the tag variable (name is actually casual, as follows: private static final String tag= "Yan";2, when you need to use Logcat output information: LOG.I (Tag, "screen width:" +display.getwidth () + "screen height:" +display.getheight ());3, double click Logcat, click "+" add a new logcat filter, a total of three places need to writ

In addition to the ability to return data results from an Activity, it is also very common to transmit data to an Activity.1. Create a project named PassData.2. Code in main. xml.[Java] view plaincopy Android: layout_width = "fill_parent"Android: layout_height = "fill_parent"Android: orientation = "vertical">Android: i

In the previous article, we described how to write Linux kernel drivers for the Android system on Ubuntu. In this Linux kernel driver named Hello, three different file nodes are created for user space access, traditional device file/dev/hello, proc system file/proc/hello and DEVFS System Properties file/sys/class/ Hello/hello/val. Further, the/proc/hello and/sys/class/hello/hello/val files are accessed directly through the Cat command to verify the co

VS2015 Update2 build Android program problem summary, vs2015android Since VS2015, Visual Studio has gradually been built into support for cross-platform development, and the Visual Studio team has also released an additional compilation tool set Clang with Microsoft CodeGen to facilitate developers to develop cross-platform code, the Clang version used in the tool set VS 2015 Update 2 is 3.7. at the same ti

system.Security.Classes. dex is a Java bytecode file generated after Java source code compilation. however, because the Dalvik Virtual Machine Used by Android is incompatible with the standard Java virtual machine, the DEX file and the class file are different in both the file structure and opcode.Decompilation of XML filesThe XML file in the APK is compressed. You can use the axmlprinter2 tool to unbind it. The specific command is:Java-jar axmlprint

In the previous article, we introduced how to write the Linux kernel driver for the Android system on Ubuntu. In the Linux kernel driver named hello, create three different file nodes for user space access, these are the traditional device files/dev/Hello, Proc system files/proc/Hello, And devfs system property files/sys/class/Hello/Val. In addition, the cat command is used to directly access the/proc/hello and/sys/class/Hello/Val files to verify the

Sometimes, the application needs to run automatically when it is started, for example, a background service that automatically updates content from the Internet. How can I enable applications that run automatically upon startup? At the time of writing this article, I think that Mr. Gao hentang uses "don't call me, I'll call you back !" To sum up the android framework, let's talk about the idea. Understanding the meaning of this sentence can solve many

Currently the most popular smartphone operating system for smartphones is Android's mobile operating system, which has received a 70%.1 concern, with iOS and Aliyun's "Cottage Android" being 15.9% and 2.9%, respectively. For this is just launched by the vast number of developers love products. In general, an Android application after the development of a certain stage, the functional modules will be more an

Learn to program, learn Java or Big data, Android? There are many students in the tangle, recently there are a lot of beginners to ask, learning big data, learning Spark, the company mainly use those languages to write, every hear this question, at least it is very good, prove that you have started to learn big data, and understand that big data spark can be used in many languages to achieve development, Th

As the number of functional modules of Android programs increases, interactions between modules become more common. A system with a well-designed structure will not be copied and pasted in large quantities due to the above reasons, if a large number of copies and pastes occur, the structure design of the system fails. In the past, when writing an online e-commerce application, each Activity had an AsyncTask asynchronous thread to execute online downlo

From: http://ysl-paradise.blogspot.com/2009/07/android-analogclock-1.html Android source code internals-alarm clock, analogclock (1) The original program of zookeeper is stored here. One line of this program, the first sight on the page, is a big time. So today, we will start from this moment. Let's look at how it act

20172328 "Program design and data Structure" experiment four Android programming reportProgram: Program design and data structureClass: 1723Name: Li XinyuStudy No.: 20172328Lab Teacher: Wang Zhiqiang teacherDate of experiment: June 1, 2018Compulsory Elective: compulsoryFirst, the contents of the experiment Experimental 1:

Delphi's Android program is the native program, which is nativeactivity. Then you need to look at the principle of nativeactivity, in the Androidmanifest.xml file to specify the entry activity for nativeactivity, so that the application starts, the Java virtual machine this side open a main thread, The main thread creates an activity, which is nativeactivity, whi

Article reprinted to CSDN community Luo Shenyang's Android tour, original address: http://blog.csdn.net/luoshengyang/article/details/6571210In the previous article, we described how to write a Linux kernel driver for an Android system on Ubuntu. In this Linux kernel driver called Hello, create three different file nodes for user space access, namely traditional device file/dev/hello, proc system file/proc/h