Android异步获取网络图片并处理图片出现OutOfMemory内存溢出的解决办法.docVIP

Android异步获取网络图片并处理图片出现Out Of Memory内存溢出的解决办法 测试环境为Adnroid 2.1以上。 1：AndroidManifest.xml 权限配置： 添加互联网访问权限： uses-permission android:name=android.permission.INTERNET / 2.异步图片类 ImageDownloadTask import java.io.ByteArrayOutputStream; import java.io.IOException; import java.io.InputStream; import .MalformedURLException; import .URL; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.os.AsyncTask; import android.widget.ImageView; public class ImageDownloadTask extends AsyncTaskObject, Object, Bitmap { private ImageView imageView = null; /*** * 这里获取到手机的分辨率大小 * */ public void setDisplayWidth(int width) { _displaywidth = width; } public int getDisplayWidth() { return _displaywidth; } public void setDisplayHeight(int height) { _displayheight = height; } public int getDisplayHeight() { return _displayheight; } public int getDisplayPixels() { return _displaypixels; } private int _displaywidth = 480; private int _displayheight = 800; private int _displaypixels = _displaywidth * _displayheight; @Override protected Bitmap doInBackground(Object... params) { // TODO Auto-generated method stub Bitmap bmp = null; imageView = (ImageView) params[1]; try { String url = (String) params[0]; bmp = getBitmap(url, _displaypixels,true); } catch (Exception e) { return null; } return bmp; } protected void onPostExecute(Bitmap result) { if (imageView != nullresult!=null) { imageView.setImageBitmap(result); if (null != result result.isRecycled() == false) System.gc(); } } /** * 通过URL获得网上图片。如:/xx.jpg * */ public Bitmap getBitmap(String url, int displaypixels, Boolean isBig) throws Mal