[英]Android Temporary file - Life cycle
Android中臨時文件的生命周期是什么?
誰負責清理?
最終,我發現自己必須自己做,因此每次啟動應用程序時,我都會運行這種清除緩存的方法。
private static final long MIN_FREE_BYTES = 1024 * 1024 * 5; // this is 5M, Android recommend that there will always remind at last 1M
public static void cleareCache(File directory){
if(directory == null){
directory = AppGenManager.getInstance().getCacheDir();
}
if(checkRemindingSpace(directory.getPath()) > MIN_FREE_BYTES){
return;
}
File[] files = directory.listFiles();
if (files != null) {
for (File file : files){
if(file.isDirectory()){
cleareCache(file);
}
else{
file.delete();
}
}
}
}
/**
* @param path file path
* @return the number of available bytes on this directory
*/
private static long checkRemindingSpace(String path){
StatFs stat = new StatFs(path);
long blockSize = stat.getBlockSize();
long availableBlocks = stat.getAvailableBlocks();
return availableBlocks * blockSize;
}
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.