优化Android Bitmap显示：FinalBitmap解决OOM与滑动错位问题

private GridView gridView; 
private FinalBitmap fb; 
@Override 
protected void onCreate(Bundle savedInstanceState) { 
super.onCreate(savedInstanceState); 
setContentView(R.layout.images);

     gridView = (GridView) findViewById(R.id.gridView);
     gridView.setAdapter(mAdapter);

     fb = new FinalBitmap(this).init();//必须调用init初始化FinalBitmap模块
     fb.configLoadingImage(R.drawable.downloading);
     //这里可以进行其他十几项的配置，也可以不用配置，配置之后必须调用init()函数,才生效
     //fb.configBitmapLoadThreadSize(int size)
     //fb.configBitmapMaxHeight(bitmapHeight)
}
///////////////////////////adapter getView////////////////////////////////////////////

public View getView(int position, View convertView, ViewGroup parent) { 
ImageView iv; 
if(convertView == null){ 
convertView = View.inflate(BitmapCacheActivity.this,R.layout.image_item, null); 
iv = (ImageView) convertView.findViewById(R.id.imageView); 
iv.setScaleType(ScaleType.CENTER_CROP); convertView.setTag(iv); 
}else{ 
iv = (ImageView) convertView.getTag(); 
} 
//bitmap加载就这一行代码，display还有其他重载，详情查看源码 
//Images.imageUrls[position]为图片路径
fb.display(iv,Images.imageUrls[position]);