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package com.androidbegin.parselistviewimgtxt; // w w w . ja v a 2s .c om import java.io.File; import android.content.Context; 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(), "ParseListViewImgTxt"); else cacheDir = context.getCacheDir(); if (!cacheDir.exists()) cacheDir.mkdirs(); } public File getFile(String url) { String filename = String.valueOf(url.hashCode()); // String filename = URLEncoder.encode(url); File f = new File(cacheDir, filename); return f; } public void clear() { File[] files = cacheDir.listFiles(); if (files == null) return; for (File f : files) f.delete(); } }