Databases
StackOverflow2013
Postsdbo
PO
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PO
    primarykey
    data
    text
    <pre><code>import java.io.BufferedInputStream; import java.io.BufferedOutputStream; import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.io.ObjectInputStream; import java.io.ObjectOutputStream; import java.io.StreamCorruptedException; import java.text.SimpleDateFormat; import java.util.HashMap; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.os.Environment; import android.util.Log; public class CacheStore { private static CacheStore INSTANCE = null; private HashMap&lt;String, String&gt; cacheMap; private HashMap&lt;String, Bitmap&gt; bitmapMap; private static final String cacheDir = "/Android/data/com.yourbusiness/cache/"; private static final String CACHE_FILENAME = ".cache"; @SuppressWarnings("unchecked") private CacheStore() { cacheMap = new HashMap&lt;String, String&gt;(); bitmapMap = new HashMap&lt;String, Bitmap&gt;(); File fullCacheDir = new File(Environment.getExternalStorageDirectory().toString(),cacheDir); if(!fullCacheDir.exists()) { Log.i("CACHE", "Directory doesn't exist"); cleanCacheStart(); return; } try { ObjectInputStream is = new ObjectInputStream(new BufferedInputStream(new FileInputStream(new File(fullCacheDir.toString(), CACHE_FILENAME)))); cacheMap = (HashMap&lt;String,String&gt;)is.readObject(); is.close(); } catch (StreamCorruptedException e) { Log.i("CACHE", "Corrupted stream"); cleanCacheStart(); } catch (FileNotFoundException e) { Log.i("CACHE", "File not found"); cleanCacheStart(); } catch (IOException e) { Log.i("CACHE", "Input/Output error"); cleanCacheStart(); } catch (ClassNotFoundException e) { Log.i("CACHE", "Class not found"); cleanCacheStart(); } } private void cleanCacheStart() { cacheMap = new HashMap&lt;String, String&gt;(); File fullCacheDir = new File(Environment.getExternalStorageDirectory().toString(),cacheDir); fullCacheDir.mkdirs(); File noMedia = new File(fullCacheDir.toString(), ".nomedia"); try { noMedia.createNewFile(); Log.i("CACHE", "Cache created"); } catch (IOException e) { Log.i("CACHE", "Couldn't create .nomedia file"); e.printStackTrace(); } } private synchronized static void createInstance() { if(INSTANCE == null) { INSTANCE = new CacheStore(); } } public static CacheStore getInstance() { if(INSTANCE == null) createInstance(); return INSTANCE; } public void saveCacheFile(String cacheUri, Bitmap image) { File fullCacheDir = new File(Environment.getExternalStorageDirectory().toString(),cacheDir); String fileLocalName = new SimpleDateFormat("ddMMyyhhmmssSSS").format(new java.util.Date())+".PNG"; File fileUri = new File(fullCacheDir.toString(), fileLocalName); FileOutputStream outStream = null; try { outStream = new FileOutputStream(fileUri); image.compress(Bitmap.CompressFormat.PNG, 100, outStream); outStream.flush(); outStream.close(); cacheMap.put(cacheUri, fileLocalName); Log.i("CACHE", "Saved file "+cacheUri+" (which is now "+fileUri.toString()+") correctly"); bitmapMap.put(cacheUri, image); ObjectOutputStream os = new ObjectOutputStream(new BufferedOutputStream( new FileOutputStream(new File(fullCacheDir.toString(), CACHE_FILENAME)))); os.writeObject(cacheMap); os.close(); } catch (FileNotFoundException e) { Log.i("CACHE", "Error: File "+cacheUri+" was not found!"); e.printStackTrace(); } catch (IOException e) { Log.i("CACHE", "Error: File could not be stuffed!"); e.printStackTrace(); } } public Bitmap getCacheFile(String cacheUri) { if(bitmapMap.containsKey(cacheUri)) return (Bitmap)bitmapMap.get(cacheUri); if(!cacheMap.containsKey(cacheUri)) return null; String fileLocalName = cacheMap.get(cacheUri).toString(); File fullCacheDir = new File(Environment.getExternalStorageDirectory().toString(),cacheDir); File fileUri = new File(fullCacheDir.toString(), fileLocalName); if(!fileUri.exists()) return null; Log.i("CACHE", "File "+cacheUri+" has been found in the Cache"); Bitmap bm = BitmapFactory.decodeFile(fileUri.toString()); bitmapMap.put(cacheUri, bm); return bm; } } </code></pre>
    singulars
    1. This table or related slice is empty.
    1. POHow to store images in Cache Memory
      singulars
      1. PTQuestion
    1. PTAnswer
    1. USRupok
    1. USRupok
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. POHow to store images in Cache Memory
      singulars
      1. PTQuestion
    1. This table or related slice is empty.
    1. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTAcceptedByOriginator
    2. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    1. COWill this code, store my images to the sdcard?
      singulars
      1. PO
      1. USAndro Selva
    2. COto store in sd card http://stackoverflow.com/questions/5530737/android-saving-to-sd-card
      singulars
      1. PO
      1. USRupok
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload