同样也是用了GridView，获取手机中的图片，添加到数组中，显示
这里用到了一个AlbumHelper（相册帮助类），网上找的代码，感觉挺好的
public List<ImageBucket> getImagesBucketList(boolean refresh) {
if (refresh || (!refresh && !hasBuildImagesBucketList)) {
buildImagesBucketList();
}
List<ImageBucket> tmpList = new ArrayList<ImageBucket>();
Iterator<Entry<String, ImageBucket>> itr = bucketList.entrySet()
.iterator();
while (itr.hasNext()) {
Entry<String, ImageBucket> entry = (Entry<String, ImageBucket>) itr
.next();
tmpList.add(entry.getValue());
}
return tmpList;
}
获取到数据源之后，该显示了，也就是利用的获取图片帮助类里面的方法
// 初始化，给一些对象赋值
private void init() {
helper = AlbumHelper.getHelper();
helper.init(getApplicationContext());
contentList = helper.getImagesBucketList(false);
dataList = new ArrayList<ImageItem>();
for(int i = 0; i<contentList.size(); i++){
dataList.addAll( contentList.get(i).imageList );
}
back = (Button) findViewById(R.id.back);
cancel = (Button) findViewById(R.id.cancel);
cancel.setOnClickListener(new CancelListener());
back.setOnClickListener(new BackListener());
preview = (Button) findViewById(R.id.preview);
preview.setOnClickListener(new PreviewListener());
intent = getIntent();
Bundle bundle = intent.getExtras();
gridView = (GridView) findViewById(R.id.myGrid);
gridImageAdapter = new AlbumGridViewAdapter(mContext,dataList,Bimp.tempSelectBitmap);
gridView.setAdapter(gridImageAdapter);
tv = (TextView) findViewById(R.id.myText);
gridView.setEmptyView(tv);
okButton = (Button) findViewById(R.id.ok_button);
okButton.setText("完成"+"(" + Bimp.tempSelectBitmap.size()
+ "/"+ NeedApplication.picNums+")");
}
