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我需要顯示圖像從sqlite數據庫到gridview或圖庫視圖。
這是顯示在一個單一的視圖代碼: Android圖庫視圖與保存在sqlite中的圖像blob
mMain = (ImageView) findViewById(R.id.ivMain);
byte[] blob = imgs.getBytes(); //there is a method that will return the bytes from the database
ByteArrayInputStream inputStream = new ByteArrayInputStream(blob);
Bitmap bitmap = BitmapFactory.decodeStream(inputStream);
mMain.setImageBitmap(bitmap);
我爲網格視圖android的教程,但它從文件
// references to our images
private Integer[] mThumbIds = {
R.drawable.sample_2, R.drawable.sample_3
... }
得到的圖像是有辦法來填充從sqlite數據庫的gridview?
UPDATE:
進出口使用的ImageAdapter在android系統教程提供:
http://developer.android.com/resources/tutorials/views/hello-gridview.html
我的代碼變成這樣:
ArrayList<byte[]> image_arr = new ArrayList<byte[]>();
//loop through all images on sqlite
for(int l = 0 ;l< db.getAllImages().size(); l++){
Image imgs = db.getAllImages().get(l);
byte[] blob = imgs.getBytes();
image_arr.add(blob);
ByteArrayInputStream inputStream = new ByteArrayInputStream(blob);
Bitmap bitmap = BitmapFactory.decodeStream(inputStream);
// mMain.setImageBitmap(bitmap);
}
//TODO; find way to make the bitmap get to the ImageView
Gallery gallery = (Gallery) findViewById(R.id.gallery);
gallery.setAdapter(new ImageAdapter(this));
此代碼是主要的活動,所以我需要找到辦法通過ImageView中的資源位於其他文件中。
哇,那太快了!我會馬上檢查。感謝您的反饋 – 2012-02-20 07:40:33
謝謝@aashutosh,ArrayList image = new ArrayList ();想法幫助我處理字節數組,這將傳遞給ItemsAdapter,但請解釋更多此ItemsAdapter我目前使用示例適配器:http://developer.android.com/resources/tutorials/views/hello-gridview html的 –
2012-02-20 08:37:51