Android中Glide获取缓存大小并清除缓存图片

 import android.content.Context; import android.os.Looper; import android.text.TextUtils; import com.bumptech.glide.Glide; import com.bumptech.glide.load.engine.cache.ExternalCacheDiskCacheFactory; import com.bumptech.glide.load.engine.cache.InternalCacheDiskCacheFactory; import java.io.File; import java.math.BigDecimal; /**Glide缓存工具类 * Created by Trojx on 2016/10/10 0010. */ public class GlideCacheUtil { private static GlideCacheUtil inst; public static GlideCacheUtil getInstance() { if (inst == null) { inst = new GlideCacheUtil(); } return inst; } /** * 清除图片磁盘缓存 */ public void clearImageDiskCache(Context context) { try { if (Looper.myLooper() == Looper.getMainLooper()) { new Thread(new Runnable() { @Override public void run() { Glide.get(context).clearDiskCache(); // BusUtil.getBus().post(new GlideCacheClearSuccessEvent()); } }).start(); } else { Glide.get(context).clearDiskCache(); } } catch (Exception e) { e.printStackTrace(); } } /** * 清除图片内存缓存 */ public void clearImageMemoryCache(Context context) { try { if (Looper.myLooper() == Looper.getMainLooper()) { //只能在主线程执行 Glide.get(context).clearMemory(); } } catch (Exception e) { e.printStackTrace(); } } /** * 清除图片所有缓存 */ public void clearImageAllCache(Context context) { clearImageDiskCache(context); clearImageMemoryCache(context); String ImageExternalCatchDir=context.getExternalCacheDir()+ExternalCacheDiskCacheFactory.DEFAULT_DISK_CACHE_DIR; deleteFolderFile(ImageExternalCatchDir, true); } /** * 获取Glide造成的缓存大小 * * @return CacheSize */ public String getCacheSize(Context context) { try { return getFormatSize(getFolderSize(new File(context.getCacheDir() + "/"+InternalCacheDiskCacheFactory.DEFAULT_DISK_CACHE_DIR))); } catch (Exception e) { e.printStackTrace(); } return ""; } /** * 获取指定文件夹内所有文件大小的和 * * @param file file * @return size * @throws Exception */ private long getFolderSize(File file) throws Exception { long size = 0; try { File[] fileList = file.listFiles(); for (File aFileList : fileList) { if (aFileList.isDirectory()) { size = size + getFolderSize(aFileList); } else { size = size + aFileList.length(); } } } catch (Exception e) { e.printStackTrace(); } return size; } /** * 删除指定目录下的文件，这里用于缓存的删除 * * @param filePath filePath * @param deleteThisPath deleteThisPath */ private void deleteFolderFile(String filePath, boolean deleteThisPath) { if (!TextUtils.isEmpty(filePath)) { try { File file = new File(filePath); if (file.isDirectory()) { File files[] = file.listFiles(); for (File file1 : files) { deleteFolderFile(file1.getAbsolutePath(), true); } } if (deleteThisPath) { if (!file.isDirectory()) { file.delete(); } else { if (file.listFiles().length == 0) { file.delete(); } } } } catch (Exception e) { e.printStackTrace(); } } } /** * 格式化单位 * * @param size size * @return size */ private static String getFormatSize(double size) { double kiloByte = size / 1024; if (kiloByte <1) { return size + "Byte"; } double megaByte = kiloByte / 1024; if (megaByte <1) { BigDecimal result1 = new BigDecimal(Double.toString(kiloByte)); return result1.setScale(2, BigDecimal.ROUND_HALF_UP).toPlainString() + "KB"; } double gigaByte = megaByte / 1024; if (gigaByte <1) { BigDecimal result2 = new BigDecimal(Double.toString(megaByte)); return result2.setScale(2, BigDecimal.ROUND_HALF_UP).toPlainString() + "MB"; } double teraBytes = gigaByte / 1024; if (teraBytes <1) { BigDecimal result3 = new BigDecimal(Double.toString(gigaByte)); return result3.setScale(2, BigDecimal.ROUND_HALF_UP).toPlainString() + "GB"; } BigDecimal result4 = new BigDecimal(teraBytes); return result4.setScale(2, BigDecimal.ROUND_HALF_UP).toPlainString() + "TB"; } }