Android uses ImageView to display network pictures

This case uses imageview simple implementation of the network image of the call. Attention to the issue. As a result of the use of the network, the use of the HttpClient method to access the network connection, about how, can participate in the article? Using HttpClient in Android to achieve HTTP communication effects? You need to be aware of configuring network permissions. and need to use new thread and handler to update activity, or will directly error not Main thread See example: Mainactivity.java

Package Com.example.imageview;import Android.os.bundle;import Android.os.handler;import android.app.Activity; Import Android.graphics.bitmap;import Android.view.menu;import Android.widget.imageview;public class MainActivity Extends Activity {private Bitmap BM = null, @Overrideprotected void OnCreate (Bundle savedinstancestate) {super.oncreate ( Savedinstancestate); Setcontentview (R.layout.activity_main); final Handler Handler = new Handler (); new Thread () {public void Run () {BM = new apachehttpclient (). Gethttpbmp ("http://www.qilujiaju.com/data/attachment/block/c9/ C960ba426890a8ddbfc35d2b4b0d97c9.jpg ") Handler.post (new Runnable () {@Overridepublic void Run () {//TODO Auto-generated method Stubimageview ImageView = (imageView) Findviewbyid (r.id.imageview1); Imageview.setimagebitmap ( BM);}});}. Start ();} @Overridepublic boolean Oncreateoptionsmenu (Menu menu) {//Inflate the menu; This adds items to the action bar if it is PR Esent.getmenuinflater (). Inflate (R.menu.activity_main, menu); return true;}}

Apachehttpclient.java

Package Com.example.imageview;import Java.io.ioexception;import Java.io.inputstream;import Org.apache.http.httpresponse;import Org.apache.http.httpstatus;import Org.apache.http.client.clientprotocolexception;import Org.apache.http.client.httpclient;import Org.apache.http.client.methods.httpget;import Org.apache.http.impl.client.defaulthttpclient;import Android.graphics.bitmap;import Android.graphics.bitmapfactory;import Android.util.log;public Class apachehttpclient {private static final String TAG = "Error";p ublic inputstream httpget (string url) {InputStream result = N Ull HttpClient HttpClient = new Defaulthttpclient (); HttpGet httpget = new HttpGet (URL); HttpResponse HttpResponse = null;try {HttpResponse = Httpclient.execute (httpget); int httpstatus = Httpresponse.getstatusline (). Getstatuscode (); if (httpstatus = = HTTPSTATUS.SC_OK) {InputStream in = Httpresponse.getentity (). getcontent (); try {result = in;} catch (Exception e) {log.i (TAG, "Exception");//TODO Auto-generated Catch BLOCKE.PRIntstacktrace ();}} else {result = null;}} catch (Clientprotocolexception e) {//TODO auto-generated catch Blocke.printstacktrace (); LOG.I (TAG, "clientprotocolexception");} catch (IOException e) {//TODO auto-generated catch Blocke.printstacktrace (); LOG.I (TAG, "clientprotocolexception");} return result;} Public Bitmap gethttpbmp (String URL) {Bitmap BM = Null;inputstream are = httpget (URL); bm = Bitmapfactory.decodestream (is); r Eturn BM;}}

Androidmainfest.xml

<?
XML version= "1.0" encoding= "Utf-8"? ><manifest xmlns:android= "Http://schemas.android.com/apk/res/android" Package= "Com.example.imageview" android:versioncode= "1" android:versionname= "1.0" ><uses-sdkandroid: minsdkversion= "8" android:targetsdkversion= "/><uses-permission android:name=" Android.permission.INTERNET "/><applicationandroid:allowbackup=" true "android:icon=" @drawable/ic_launcher " Android:label= "@string/app_name" android:theme= "@style/apptheme" ><activityandroid:name= " Com.example.imageview.MainActivity "android:label=" @string/app_name "><intent-filter><action android: Name= "Android.intent.action.MAIN"/><category android:name= "Android.intent.category.LAUNCHER"/></ Intent-filter></activity></application></manifest>

Activity_main.xml

<relativelayout xmlns:android= "http://schemas.android.com/apk/res/android" xmlns:tools= "http// Schemas.android.com/tools "android:layout_width=" match_parent "android:layout_height=" Match_parent "Tools:context =". Mainactivity "><imageviewandroid:id=" @+id/imageview1 "android:layout_width=" Wrap_content "Android:layout_ height= "Wrap_content" android:layout_alignparentleft= "true" android:layout_alignparenttop= "true" android:src= "@ Drawable/app "/></relativelayout>

This is a complete example that can be executed directly on the emulator or the real machine.

Android uses ImageView to display network pictures