/**
* 创建缓存目录和.nomedia文件
*
* @param context
* @return
*/
private static File getExternalCacheDir(Context context) {
File dataDir = new File(new File(Environment.getExternalStorageDirectory(), "Android"), "data");
File appCacheDir = new File(new File(dataDir, context.getPackageName()), "cache");
if (!appCacheDir.exists()) {
if (!appCacheDir.mkdirs()) {
EasyLog.w("无法创建外部缓存目录");
return null;
}
try {
new File(appCacheDir, ".nomedia").createNewFile();
} catch (IOException e) {
EasyLog.i("不能创建 .nomedia文件");
}
}
return appCacheDir;
}
/**
* 返回 应用的缓存目录
* ，优先在sdcard上("/Android/data/[app_package_name]/cache"),需要sdcard操作权限,如果失败返回android系统的缓存目录
*
* @param context Application context
* @return Cache {@link File directory}
*/
public static File getCacheDirectory(Context context) {
File appCacheDir = null;
if (MEDIA_MOUNTED.equals(Environment.getExternalStorageState())
&& hasExternalStoragePermission(context)) {
appCacheDir = getExternalCacheDir(context);
}
if (appCacheDir == null) {
appCacheDir = context.getCacheDir();
}
if (appCacheDir == null) {
EasyLog.w("获取应用缓存目录失败");
}
return appCacheDir;
}
