布局
<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" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" android:paddingBottom="@dimen/activity_vertical_margin" tools:context="com.basillee.asus.demo.MainActivity3"> <ImageView android:id="@+id/imageView" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerInParent="true" ></ImageView> </RelativeLayout>
后台代码
package com.basillee.asus.demo; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.os.Bundle; import android.support.v7.app.ActionBarActivity; import android.widget.ImageView; import java.io.IOException; import java.io.InputStream; import java.net.MalformedURLException; import java.net.URL; import java.net.URLConnection; public class MainActivity3 extends ActionBarActivity { private ImageView imageView=null; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main_activity3); imageView= (ImageView) findViewById(R.id.imageView); new Thread(new Runnable() { @Override public void run() { final Bitmap bitmap=getPicture("http://h.hiphotos.baidu.com/news/q%3D100/sign=be8e90f30cfa513d57aa68de0d6d554c/c75c10385343fbf29d10a30cb47eca8065388fe4.jpg"); try { Thread.sleep(2000); } catch (InterruptedException e) { e.printStackTrace(); } imageView.post(new Runnable() { @Override public void run() { imageView.setImageBitmap(bitmap); } }); } }).start(); } public Bitmap getPicture(String path){ Bitmap bm=null; try{ URL url=new URL(path); URLConnection connection=url.openConnection(); connection.connect(); InputStream inputStream=connection.getInputStream(); bm= BitmapFactory.decodeStream(inputStream); } catch (MalformedURLException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } return bm; } }
更多介绍请看android系列经验: http://jingyan.baidu.com/article/48b558e3372fae7f38c09a1d.html