google play services for android 4 4 2

Notation 1: Inner classDefine an inner class to implement the Onclicklistener interface, and then register an instance of the inner class with the button.Notation 2: Anonymous inner classnotation 3: Let the activity implement Onclicklistener interface, through this to register button click event, the replication OnClick method, by judging the view, centralized processing each button click event. This method is the most commonly used method for having

Android Baidu map SDK v3_3_0 (4), androidv3_3_0 Reprinted please indicate the source: http://blog.csdn.net/tanzuai/article/details/43833125 Functions to be implemented in this blog First: The above is what we will achieve. 1. First, we will introduce the functions to be implemented: A. Change the coordinates B. Change the coordinate icon C. Delete the icon D. The coordinates change at intervals. Clear. cle

1. Activity2. Broadcastreceiver3.services4.contentProviderA. The broadcast recipient ,---------------trigger the Onreceiver method when the specified broadcast is received. This class needs to inherit Broadcastreceiverpublic void OnReceive (context context, Intent Intent) {Broadcast triggers need to be included in the configuration listCan also be configured by codeRegistration of broadcasting, cancellation of registration Unregisterreceiver (receiver);New mybroadrecastreceiver (); // Create Int

is not very good, does not recommend Method 2:onuserleavehint Method Copy Code code as follows: @Override protected void Onuserleavehint () { LOG.D ("Aeon", "Onuserleavehint"); Super.onuserleavehint (); } This method will be executed before onsaveinstancestate, and this method is more appropriate according to the API explanation. Method 3:action_close_system_dialogs Action_close_system_dialogs can be used in radio m

Chapter 4-android MediaCodec: Determine whether hard decoding code is supported.-androidmediacodec Public boolean issuppmedimediacodecharddecoder () {boolean isHardcode = false; // read the system configuration File/system/etc/media_codecc.xml file File = new File ("/system/etc/media_codecs.xml "); inputStream inFile = null; try {in = new FileInputStream (file);} catch (Exception e) {// TODO: handle excepti

Hello everyone, today I want to share with you the development of the launcher desktop shortcut icon. We all know that the shortcut icon consists of two parts: the application icon and the Application name. In fact, the shortcut icon in launcher only inherits the textview control and re-draws it to make the background light gray (I don't know what the color is) the elliptical background, the displayed text color is white. Textview has the Android: dra

Udacity Android Learning Note: Lesson 4 Part A/titer1/archimedes of dry Goods shop choresSource: Https://code.csdn.net/titer1Contact: 13,073,161,968Disclaimer: This document is licensed under the following protocols: Free reprint-Non-commercial-non-derivative-retention Attribution | Creative Commons by-nc-nd 3.0, reproduced please specify the author and source.Tips:https://code.csdn.net/titer1/pat_aha/blob/

implement landing page and jump and simple registration pageFirst, let's look at the XML code for the layout login.xml　　Let's look at the first line, which is mainly about XML version information and encoding format. The next is the point, the code is written, we can see how the layout of the code is also easy to debug, then this time need to click on the graphical layout below, this is a visual editing window, we write the XML code is what it looks like, You can see it here, so this is very con

Java 4 Android class and object initialization1. Member Initialization Java tries its best to ensure that all variables can be properly initialized before use. 1) local variables of the method. Java implements this guarantee by compiling errors. Eg: void f(){ int i; i++; //Error , i not initialized}2) data member of the class. If it is a basic type, they a

Android Camera Real-Time Filter (4), androidcameraImplementation of custom algorithms based on PS special effects on Android platform Created with Rapha rjl 2.1.2 Start Image Bitmap Get pixel getPixels

is no return value, this one. But to write a //onactivityresult method is as followsprotected void Onactivityresult (int requestcode,int resultcode,intent data)//Learn to construct it with a method constructor! {if (Requestcode==request_code)//Prevent many-to-one {if (Resultcode==secondactivity.result_code)//prevent a-to-many {Bundle bundle= Data.getextras (); String str=bundle.getstring ("Back"); Toast.maketext (Mainactivity.this,str,toast.length_long). Show ();}}}Defined in Secondactivi

sherlockactivity.6. Use Getsupportactionbar () to get the Actionbar object.The above method can realize the problem of low version using Actionbar, but Goole introduced its own Compatibility pack last year, which is more convenient to use. Let's take a look at how to use SUPPORT_V7.1. Download and import the appcompat_7.x Compatibility Pack as above (provided if it is the official latest SDK development tool)2. References in the project:3. Modify the

Android source code parsing (4) --) IntentService What is IntentService? In short, IntentService is a Service that contains its own message loops. First, it is a service. Therefore, services have its own characteristics and some of its own attributes, it encapsulates a message queue and a HandlerThread. In its specific abstract method, the onHandleIntent method r

Android Meterial Design-Defining Shadows and Clipping Views (defines shadow and cropping Views)-(4), deepawmeterial Reprinted please indicate the source: http://blog.csdn.net/bbld_/article/details/40539131 Material Design introduces deep UI elements. It helps users understand the relative importance of each element and focus on what they are doing. A view (control), represented by the elevation of the Z at

Android Meterial Design-Defining Shadows and Clipping Views (define shadow and cropping Views)-(4) Material Design introduces deep UI elements. It helps users understand the relative importance of each element and focus on what they are doing. A view (control), represented by the elevation of the Z attribute, determines the size of its shadow. A view with a higher Z value has a larger shadow. Views only ca

Android Internship notes (4)---Fragment (fragmentation) Basic concept analysisReprint Please specify source: Coder-pigFragment believe that everyone will be unfamiliar, slide, drawer effect, dialogfragment ah, and so on, a lot of places willUsed to fragment, for the basic concept of fragment in the previous article has actually given, here review again,Warm so know new well, combined with Google's official

combine with RadioButton to show the effect of multiple choices? Let's look at the XML and we'll know:1 XML version= "1.0" encoding= "Utf-8"?>2 LinearLayoutxmlns:android= "Http://schemas.android.com/apk/res/android"3 android:orientation= "vertical"4 Android:layout_width= "Fill_parent"5 Android:layout_height= "Fill_parent"6 >7 Radiogroup8 Android:

1. Picture in SDcardBitmap imagebitmap = bitmapfactory.decodefile (path) (paths are images, and directories are/sdcard)2. Picture below the Res folder of the projectGet Application ObjectApplicationInfo appInfo = Getapplicationinfo ();Get the image ID (name is the name of the picture, "Drawable" is the directory where the picture is stored, Appinfo.packagename is the app's package)int resID = Getresources (). Getidentifier (Name, "drawable", appinfo.p

Original address: http://www.developerphil.com/android-studio-tips-of-the-day-roundup-4/33. Analyze data flow to current locationApple/windows: No corresponding shortcut key, you can choose Analyze->analyze Data Flow to here in the menuBy analyzing the currently selected variable, parameter, or domain variable, this function gives a path map that flows through the current position. This is useful when you a

Introduction of Criminalintent Project development 1.fragment Using fragment instead of activity to manage the app UI, you can circumvent the limitations of the Android system activity usage rules. Fragment is a controller object that the activity can delegate to accomplish some tasks. These tasks are typically administrative user interfaces. The managed user interface can be part of a full screen or a full screen. Fragment