Android用ImageView显示本地和网上的图片

ImageView是Android程序中经常用到的组件，它将一个图片显示到屏幕上。在UI xml定义一个ImageView如下： public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.myimage); ImageView image1 = (ImageView) findViewById(R.myImage.image); //Bitmap bitmap = getLoacalBitmap("/aa/aa.jpg"); //从本地取图片 Bitmap bitmap = getHttpBitmap("http://blog.3gstdy.com/wp-content/themes/twentyten/images/headers/path.jpg"); //从网上取图片 image1 .setImageBitmap(bitmap); //设置Bitmap } /** * 加载本地图片 * http://bbs.3gstdy.com * @param url * @return */ public static Bitmap getLoacalBitmap(String url) { try { FileInputStream fis = new FileInputStream(url); return BitmapFactory.decodeStream(fis); } catch (FileNotFoundException e) { e.printStackTrace(); return null; } } /** * 从服务器取图片 *http://bbs.3gstdy.com * @param url * @return */ public static Bitmap getHttpBitmap(String url) { URL myFileUrl = null; Bitmap bitmap = null; try { Log.d(TAG, url); myFileUrl = new URL(url); } catch (MalformedURLException e) { e.printStackTrace(); } try { HttpURLConnection conn = (HttpURLConnection) myFileUrl.openConnection(); conn.setConnectTimeout(0); conn.setDoInput(true); conn.connect(); InputStream is = conn.getInputStream(); bitmap = BitmapFactory.decodeStream(is); is.close(); } catch (IOException e) { e.printStackTrace(); } return bitmap; }

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