sqllite 存储图片

方法一：


Java代码 
public void saveIcon(Bitmap icon) {    
        if (icon == null) {    
            return;    
        }    
    
        // 最终图标要保存到浏览器的内部数据库中，系统程序均保存为SQLite格式，Browser也不例外，因为图片是二进制的所以使用字节数组存储数据库的    
        // BLOB类型    
        final ByteArrayOutputStream os = new ByteArrayOutputStream();    
        // 将Bitmap压缩成PNG编码，质量为100%存储            
        icon.compress(Bitmap.CompressFormat.PNG, 100, os);     
        // 构造SQLite的Content对象，这里也可以使用raw    
        ContentValues values = new ContentValues();     
        // 写入数据库的Browser.BookmarkColumns.TOUCH_ICON字段    
        values.put(Browser.BookmarkColumns.TOUCH_ICON, os.toByteArray());     
            
        DBUtil.update(....);//调用更新或者插入到数据库的方法    
    }   

   方法二：如果数据表入口时一个content:URIimport android.provider.MediaStore.Images.Media; 

Java代码 
import android.content.ContentValues;    
import java.io.OutputStream;    
    
// Save the name and description of an image in a ContentValues map.      
ContentValues values = new ContentValues(3);    
values.put(Media.DISPLAY_NAME, "road_trip_1");    
values.put(Media.DESCRIPTION, "Day 1, trip to Los Angeles");    
values.put(Media.MIME_TYPE, "image/jpeg");    
    
// Add a new record without the bitmap, but with the values just set.    
// insert() returns the URI of the new record.    
Uri uri = getContentResolver().insert(Media.EXTERNAL_CONTENT_URI, values);    
    
// Now get a handle to the file for that record, and save the data into it.    
// Here, sourceBitmap is a Bitmap object representing the file to save to the database.    
try {    
    OutputStream outStream = getContentResolver().openOutputStream(uri);    
    sourceBitmap.compress(Bitmap.CompressFormat.JPEG, 50, outStream);    
    outStream.close();    
} catch (Exception e) {    
    Log.e(TAG, "exception while writing image", e);    
}   

import android.content.ContentValues; 
import java.io.OutputStream; 
 
// Save the name and description of an image in a ContentValues map.   
ContentValues values = new ContentValues(3); 
values.put(Media.DISPLAY_NAME, "road_trip_1"); 
values.put(Media.DESCRIPTION, "Day 1, trip to Los Angeles"); 
values.put(Media.MIME_TYPE, "image/jpeg"); 
 
// Add a new record without the bitmap, but with the values just set. 
// insert() returns the URI of the new record. 
Uri uri = getContentResolver().insert(Media.EXTERNAL_CONTENT_URI, values); 
 
// Now get a handle to the file for that record, and save the data into it. 
// Here, sourceBitmap is a Bitmap object representing the file to save to the database. 
try { 
    OutputStream outStream = getContentResolver().openOutputStream(uri); 
    sourceBitmap.compress(Bitmap.CompressFormat.JPEG, 50, outStream); 
    outStream.close(); 
} catch (Exception e) { 
    Log.e(TAG, "exception while writing image", e); 
}   
转载:http://sanfeng-chow.iteye.com/blog/599350