Mega Code Archive
File Cache
<![CDATA[
//package com.mediaportal.ampdroid.lists;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import android.content.Context;
import android.graphics.Bitmap;
public class FileCache {
private File cacheDir;
public FileCache(Context context){
//Find the dir to save cached images
if (android.os.Environment.getExternalStorageState().equals(android.os.Environment.MEDIA_MOUNTED))
cacheDir = new File(android.os.Environment.getExternalStorageDirectory(),
"aMPdroid/.Cache");
else
cacheDir=context.getCacheDir();
if(!cacheDir.exists())
cacheDir.mkdirs();
}
public File getFile(String filename){
//I identify images by hashcode. Not a perfect solution, good for the demo.
//String filename=String.valueOf(url.hashCode());
File f = new File(cacheDir, filename);
return f;
}
public void clear(){
File[] files=cacheDir.listFiles();
for(File f:files)
f.delete();
}
public void storeBitmap(Bitmap _bitmap, File _file) {
try {
if (android.os.Environment.getExternalStorageState().equals(
android.os.Environment.MEDIA_MOUNTED)) {
File parentDir = _file.getParentFile();
if (!parentDir.exists()) {
parentDir.mkdirs();
}
FileOutputStream f = new FileOutputStream(_file);
_bitmap.compress(Bitmap.CompressFormat.JPEG, 100, f);
f.flush();
f.close();
} else {
// todo: write to internal memory here???
}
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}
]]>