:?? What does the order and export under build path in Eclipse do??? When building the order and exporting which resources to export, order is to use the Order of class (because it is possible to have a class with the same name), export is to use some of the Lib and project published simultaneously.?? In the order and export entry, the jar package cannot be repeatedly penetrated into the APK, now Android will export the jar is divided into
Get control height and width in Android OnCreate ()
Try to get control height and width in oncreate () Children's shoes are aware that the getwidth () and GetHeight () method return is 0, specific reasons to see the activity life cycle will understand.
Code on:
Method One:
int w = View.MeasureSpec.makeMeasureSpec (0,view.measurespec.unspecified);
Android in the custom control, often need to get the width of the screen, each time to write, you can directly encapsulate him into a tool class, directly to use, nonsense do not say, directly on the code
/**
* * * * * *
package com.example.customview;
Import Android.content.Context;
Import Android.util.DisplayMetrics;
Import Android.view.WindowManager;
/**
* G
Xutils ToolsMethod:1 /**2 * Get data from the server3 */4 Private voidGetdatafromserver () {5Httputils Utils =Newhttputils ();6 7 //sending requests using Xutils8Utils.send (Httpmethod.get, Globalcontants.categories_url,NewRequestcallback() {9 Ten //Successful Access One @Override A Public voidOnsuccess (responseinforesponseinfo) { -String result =(String) Responseinfo.result; - System.out.
1: Get Packagemanager Get all statically installed apps:?
1
PackageManager pm = getPackageManager(); 0);
2: Get Activitymanager Get dynamic all running processes?
12
ActivityManager am = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);List" ; "+ info.uid
One. Get the screen height:(1).WindowManager wm = (WindowManager) getsystemservice (context.window_service); int width = Wm.getdefaultdisplay (). GetWidth (); int height = Wm.getdefaultdisplay (). GetHeight ();(2).WindowManager wm = This.getwindowmanager (); int width = Wm.getdefaultdisplay (). getwidth (); int height = Wm.getdefaultdisplay (). GetHeight ();Two. Get the coordinates of the control:int[] loca
Android practice-Location-Based Services (get the longitude and latitude of your location + Baidu map) and android longitude and latitude
The LocationManager class must be used for implementation. The following code is used:
The. java code is as follows:
Package org. lxh. demo; import java. util. list; import android.
Google launches the stable version of Android Studio. The installation process is illustrated to help you get started. The stable version of android
Android Studio is an IDE developed by Google for a wide range of Android Developers. It supports Windows, Mac, Linux, and othe
Simple encapsulation of the 60-second countdown Button for Android to get the verification code, Android button
Since it is troublesome to use a countdown button when registering to obtain the verification code, I wrote a TimeButton.
Mouse and mouse features,
TimeButton does not conflict with common buttons,
TimeButton returns the result in the countdown. If the
In the course of learning Android, it is very important for us to delve into its source code, which will show you how to get our Android source code by using Git in a Windows environment.1. First make sure that you have Git installed on your computer, which is installed by https://github.com/download.2. We then enter the following command on the git command line:
easier to use.1. Git installationInstall Git on Ubuntu 8.04 as long as you set the correct source for the update, and then use the apt-get on it, there is any dependency problem, let it solve it itself. Where curl is a file transfer tool that works under the command line using URL syntax, which is used when installing repo later.Java codesudo apt-get install Git-core curl
sudo apt-
We all know that the height of the control obtained in onCreate () is 0. Why? Let's take a look at the example:First, we can write a control, which is very simple:[Java]Public class MyImageView extends ImageView {Public MyImageView (Context context, AttributeSet attrs ){Super (context, attrs );}Public MyImageView (Context context ){Super (context );}@ OverrideProtected void onMeasure (int widthMeasureSpec, int heightMeasureSpec ){Super. onMeasure (widthMeasureSpec, heightMeasureSpec );System. ou
Android Http Client Programming getSpeaking of HTTP programming, do not remember the GET and post two request methods, this article with simple and clear steps and instructions, the use of Android in the common HTTP programming methods, to the first on the Android road to start the reference and guidance of the struggl
above describes the wood has found assets and res These two folders, the two folders are storage resources, then they have what difference ?First: Assets stored resources will not generate IDs in R.java, and any resources under the Res folder will generate IDs in R.java;Second: The resources stored by assets need to be accessed through the Open/openfile method (which is better for storing large files), whereas the resources in RES are generally accessed through r.id.** or r.layout.***.
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