1 files changed, 79 insertions, 0 deletions
diff --git a/org.fox.ttcomics/src/main/java/org/fox/ttcomics2/utils/CacheCleanupService.java b/org.fox.ttcomics/src/main/java/org/fox/ttcomics2/utils/CacheCleanupService.java
new file mode 100755
index 0000000..ec73e34
--- /dev/null
+++ b/org.fox.ttcomics/src/main/java/org/fox/ttcomics2/utils/CacheCleanupService.java
@@ -0,0 +1,79 @@
+package org.fox.ttcomics2.utils;
+
+import android.app.IntentService;
+import android.content.Intent;
+import android.os.Environment;
+import android.util.Log;
+
+import org.fox.ttcomics2.CommonActivity;
+
+import java.io.File;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Comparator;
+
+public class CacheCleanupService extends IntentService {
+    private final String TAG = this.getClass().getSimpleName();
+
+    public CacheCleanupService() {
+        super("CacheCleanupService");
+    }
+    public CacheCleanupService(String name) {
+        super(name);
+    }
+
+    public static boolean isStorageWritable() {
+        String state = Environment.getExternalStorageState();
+        return Environment.MEDIA_MOUNTED.equals(state);
+    }
+    @Override
+    protected void onHandleIntent(Intent workIntent) {
+        Log.d(TAG, "starting...");
+
+        if (isStorageWritable()) {
+            File cachePath = getExternalCacheDir();
+
+            try {
+
+                if (cachePath.isDirectory()) {
+                    long totalSize = 0;
+
+                    ArrayList<File> fileList = new ArrayList<File>();
+
+                    for (File file : cachePath.listFiles()) {
+                        if (file.getName().toLowerCase().contains(".png")) {
+                            totalSize += file.length();
+                            fileList.add(file);
+                        }
+                    }
+
+                    Log.d(TAG, "total cache size=" + totalSize);
+
+                    if (totalSize >= CommonActivity.MAX_CACHE_SIZE) {
+                        Log.d(TAG, "expiring oldest files...");
+
+                        Collections.sort(fileList, new Comparator<File>() {
+                            public int compare(File f1, File f2) {
+                                return Long.compare(f1.lastModified(), f2.lastModified());
+                            }
+                        });
+
+                        for (File file : fileList) {
+                            if (totalSize >= CommonActivity.MAX_CACHE_SIZE) {
+                                totalSize -= file.length();
+                                file.delete();
+                            } else {
+                                break;
+                            }
+                        }
+                    }
+                }
+
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+        }
+
+        Log.d(TAG, "done.");
+    }
+}
+\ No newline at end of file