little birthday theme material, you should be able to know "birthday party is a birthday party network new words", in this cold winter, can receive a warm Happy Birthday blessing, is not very big lie? Absolutely can melt all the cold!
Figure 6
Iv. optimization of the process of selecting drawings
This version of the "single poster" and "More than one poster" of the selection process has a lot of optimization, after the selection of alb
I. MapView class
Use the android: apiKey attribute directly in the layout to define the map api key;
The following methods are supported:
MapController getController (): gets the MapController associated with this MapView;
GeoPoint getMapCenter (): gets the center displayed by this MapView;
Int getMaxZoomLevel (): obtains the maximum zoom level supported by this MapView;
List
process, set whether to kill the process at stop, the default does not kill Option.setenablesimulategps (false);//optional, Default false to set whether the GPS simulation results need to be filtered by default, Option.setisneedlocationdescribe (TRUE),//optional, default false, set whether the location semantics result is required, Can be obtained in the bdlocation.getlocationdescribe, the result is similar to "near the Beijing Tian ' an gate" option.setisneedlocationpoilist (TRUE);//optional,
Weekend bored, then finishing the next few open-source libraries often used, inadvertently found some open interface, so decided to fuse together, do a simple "sexy beauty" Browse app, name, called "Sexy Beach", effect such as the following. (Believe some cock silk men will not be unfamiliar with the name of the word)The project is still relatively simple, the code is not complicated, here is a brief introduction.1. Image Open Interface:Http://www.tngou.net/doc/gallery/282. Related class librari
First, Introduction
Now in the Android application, the inevitable use of the picture, if every time the picture is loaded from the network to pull back, this not only very time-consuming user traffic, and the picture load will be very slow, user experience is very bad. So an application of the image caching strategy is very important. In general, the caching strategy for images in an
newly loaded pictures into the cache.class bitmapworkertask extends asynctask integer , Void , bitmap > { //loads the picture in the background. @Override protected Bitmap Doinbackground (Integer ... params) {final Bitmap Bitmap = Decodesampledbitmapfrom Resource (Getresources (), Params[0 ], 100 , 100 ); Addbitmaptomemorycache (string.valueof (Params[0 ]), bitmap); return bitmap; }}Master the above two methods, whether it is to load large images in the program, or
Android Network Framework android-async-http
This is the last part of the Android network framework series ~~,This article mainly introduces the use of the third-party library android-async-http. Later, as the end of the
Before using the API, You need to obtain the Baidu map mobile API key, which is related to the program name you reference the API. For details, refer to: Apply for API key
Baidu map API supports Android 1.5 and later systems.
Must appear to download the API Development Kit: Click to download
The extracted files include baidumapapi. jar and libbmapapiengine. So.
actual width height to the target width to the final int heightrate = Math.Round ((fl OAT) height/(float) targetheight); Final int widthrate = Math.Round ((float) width/(float) targetwidth); Insamplesize = Heightrate heightrate:widthrate; } return insamplesize;}The method is easy. is to get the scale by the desired length and width. Here we create a method to get the scaled image. To illustrate, we just create a way to get an image from a resource file:/** * Use Targe
Load large images efficientlyWe often use a lot of pictures when we write the Android program, different pictures will always have different shapes, different sizes, but in most cases, these images will be larger than the size of our program. For example, the pictures in the system pictures are mostly taken from the mobile phone camera, the resolution of these images is much higher than the resolution of our phone screen. As you should know, we write
1, create a new project, get Android Studio SHA1 value (Android Studio terminal input Line shell command: keytool-v-list-keystore debug.keystore)2, to Baidu Map official Application key (SHA1; package name)3, App/libs directory into the Baidumapapi_vx_x_x.jar package and Locsdk.jar (need to right click on the jar file add library)Under the new Jnilibsso/armeabi d
as getting it through the network.
Best_provider = mlocationmanager. network_provider;
It turns out that the problem lies in the location service acquisition method. After using the network method, you can get the current location on the real machine.
Then the program I wrote can finally run on the real machine. paste a picture to see it.
The above text shows that the address is not found because of the
Android's simplest mobile map app--has only three parts.The first partfirst set up a mapactivity in Setcontentview (r.layout. Activity_map ); Create a webview> code as follows. Part IIWrite the following code in Mapactivity:Package Com.example.jreduch7292;import Android.support.v7.app.appcompatactivity;import Android.os.Bundle;import Android.webkit.webchromeclient;import Android.webkit.websettings;import Android.webkit.webview;import Android.webkit.we
void oncreate (Bundle savedinstancestate) {super. oncreate (savedinstancestate); setcontentview (R. layout. main); mapmanager = new bmapmanager (getapplication (); mapmanager. init (Key, null); super. initmapactivity (mapmanager); mapview = (mapview) findviewbyid (R. id. mapsview); mapview. setbuiltinzoomcontrols (true); // set to enable the built-in zoom control mapcontroller = mapview. getcontroller (); // get control of mmapview, which can be used to control and
value of Insamplesize, This will ensure the width and height of the final image NBSP;NBSP;NBSP;NBSP;NBSP;NBSP;NBsp;//must be greater than or equal to the width and height of the target. insamplesize = HeightRatio Using Picture caching technologyMemory caching technology provides quick access to images that consume valuable memory from applications. The most core of these classes is LRUCache (this class is provided in the ANDROID-SUPPORT-V4 package)
Android custom and uses the Volley framework to request the network, and Android volley
Hello everyone, today we will talk about how to use the Volley framework to request the network and why to use the Volley framework. Here we will first talk about the advantages of using the Volley framework to request the
Android Network Request Library: Android-async-http Open source FrameworkA previous article describes the way the client requests server-side-post. Today, we introduce an open source Library-android-async-http library requesting server.1. Concept:The network request library
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