The example in this article describes how Android is programmed to get a mobile phone back-office service. Share to everyone for your reference, specific as follows:
public static String Getrunningservicesinfo {StringBuffer serviceinfo = new StringBuffer ();
Final Activitymanager Activitymanager = (activitymanager) context. Getsystemservice (Context.activ
Original: Android 0 basic Introductory section 32nd: New GridLayout Grid layoutThe main study in this issue is the grid layout is the new Android 4.0 layout, and the previous Tablelayout table layout is a bit similar, but he has a lot of former things, but also more useful.I. Understanding GridLayoutThe grid layout rea
Android to get the length and width of the screen, referring to the internet there are a lot of code, but the results are not practical, such as my phone is i9000, screen size is 480*800px, the result is 320*533
The result is very unreliable, so I wrote a few lines of code, a close test
Test parameters:
Test environment: i9000 (Samsung)
Physical screen: 480*800px
density:1.5
Test code:
//
the ways to get screenshots and thumbnails of video files, and you may also need to save bitmap as a file:
/**
* Bitmap Save As File
* *
* @param bitmap input bitmap
* @param name output file ' s name
* @return String o Utput file ' s path
/public static String Bitmap2file (Bitmap Bitmap, String name) {
file F = new file (environm Ent.getexternalstoragedirectory () + name + ". jpg");
if (f.exists (
transplantation. If you have a large amount of C-language code in your existing applications, using ndk not only accelerates the development process of your project, but also keeps modifications synchronized between your android and non-android projects. This is especially true for OpenGL ES applications written for other platforms.
Don't think that as long as native code is used, application efficiency ca
Recently Tinker Android, encountered a problem, because there is no root permissions, need to invoke intent installation apk, but need to get the user is installed (such as, the user clicked back or cancel), check a lot of articles, and finally can be resolved, but there are flaws, the solution is as follows:
public static void InstallPackage (context, file, int requestcode) {//before installation records
The project needs to be integrated with the Alipay interface at the client. On the study: Because the use of Alipay interface, you need to pay Treasure Official website: Registered account, and apply. Here is the operation after the application is good. After the successful login, store my business services-under the page to find--> contract management-> find a dozen mobile payment-–> Click to download the integrated document-> jump to the new page, i
Unique identification code This is useful in Web applications, such as checking for duplicate registrations.Import Android.provider.Settings.Secure;Private String android_id = secure.getstring (GetContext (). Getcontentresolver (), secure.android_id);We will use the unique identification code of the device more or less in the course of the project, we hope to get a stable and reliable device unique identification code. Today we will cover several ways
, touch effects, navigation panels, and all the elements needed in Android apps.Like a normal app, Sky apps can get all of Android's permissions and APIs, but combined with automatic upgrade from a Web server, this creates an information security issue. But for now, Sky is just a pilot project. The Sky team needs to address these issues before Sky becomes a mainstream A
Open a Web page with WebView on the Android tablet, call the JavaScript method inside, and pass the argument to each other.Online examples are very little ah, basically can not get the return value, paste a final debugging of their own code as follows:Java:
Copy Code code as follows:
protected void OnCreate (Bundle savedinstancestate)
{
........
x = (WebView) This.findviewbyid (r.id.web
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
1, Full screen support, Android P added support for Haiping Liu, Google called the Notch screen (display with a cutout). With the latest available Displaycutout class, developers can find the location and shape of non-functional areas, not functional areas should not be displayed function, use Getdisplaycutout () to get the details of this area, the future haiping Liu mobile phone is likely to become the ma
Android location service Introduction and how to get location information through the LocationManager objectZookeeper
1. location-Based Services (LBS), also known as Location-Based Services, integrates multiple technologies such as GPS positioning, mobile communication, and navigation, it provides comprehensive application services related to spatial locations. Location-Based Services are developing rapidly
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);
IntroductionThe Android Design Support library launched by Google I/O 2015 is exciting. The launch of Material design is really inspiring a lot of Android developers as well as the user's heart. The way Google used to feel about me was that he didn't care much about their UI (or the difference in aesthetics, Gmail couldn't bear to spit), but when material Design accompanying Android5.0 release, everything s
Use of FloatingActionButton, TextInputLayout, Snackbar, and TabLayout for new Android M controls
Recently, at Google's 2015 I/O conference, the new Android version M was released. It seems that Android has not been named as a digital version since this version.
At this I/O
the program still uses the old code. In this case, you just need to connect your phone to your computer and then run the program again in Android studio to fix it. In addition, this hint can only be seen in debug mode, which is not possible in release mode, so don't worry about the user's frustration.
Pay attention to my public number, the first time to get a blog update reminders, you can also co
Android Network Programming: HttpClient for Get-based communication, androidhttpclientIn Android development, the Android SDK comes with Apache HttpClient, which is a complete client. It provides comprehensive support for the HTTP protocol. You can use HttpClient objects to execute http
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