清除手机缓存工具类

public class CacheClearUtil
{
    private static final String CACHE_DATA_DB = "/data/data/com.gtafe.zhpj/databases";
    private static final String CACHE_DATA_SF = "/data/data/com.gtafe.zhpj/shared_prefs";
    private static final String CACHE_DATA_CACHE = "/data/data/com.gtafe.zhpj/cache";
    private static File lFileDB;
    private static File lFileSF;
    private static File lFileC;
    /**
     * 获取所有缓存
     * @param context
     * @return
     * @throws Exception
     */
    public static String getTotalCacheSize(Context context) throws Exception {
        lFileDB = new File(CACHE_DATA_DB);
        lFileSF = new File(CACHE_DATA_SF);
        lFileC = new File(CACHE_DATA_CACHE);
        //内存缓存DB和SF,cache,files文件
        long cacheSizeDB = getFolderSize(lFileDB);
        long cacheSizeSF = getFolderSize(lFileSF);
        long cacheSizeC = getFolderSize(lFileC);
        long cacheSize = cacheSizeDB + cacheSizeSF + cacheSizeC + getFolderSize(context.getFilesDir());  //context.getFilesDir()或者像上面一样直接用路径
        //fresco产生的cache，如果需要就加入下面这行代码
        //long cacheSizeFresco = Fresco.getImagePipelineFactory().getMainDiskStorageCache().getSize();
        //cacheSize = cacheSize +  cacheSizeFresco;
        if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
            cacheSize = cacheSize +  getFolderSize(context.getExternalCacheDir());
        }
        return getFormatSize(cacheSize);
    }

    /**
     * 清除所有缓存
     * @param context
     * @return
     */
    static boolean isClearSuccess = true;
    public static void clearAllCache(Context context,ShowClearResultListener showClearResultListener) {
        mListener = showClearResultListener;  //监听初始化
        showWaitingDialog(context);  //弹框等待
        //清理Fresco的缓存
        /*ImagePipeline imagePipeline = Fresco.getImagePipeline();
        imagePipeline.clearCaches();*/
        //清理内存和文件缓存
        isClearSuccess = deleteDir(lFileDB);
        isClearSuccess = deleteDir(lFileSF);
        isClearSuccess = deleteDir(lFileC);
        isClearSuccess = deleteDir(context.getFilesDir());
        if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
            isClearSuccess = deleteDir(context.getExternalCacheDir());
        }
    }

    private static boolean deleteDir(File dir) {
        if (dir != null && dir.isDirectory()) {
            String[] children = dir.list();
            for (int i = 0; i < children.length; i++) {
                boolean success = deleteDir(new File(dir, children[i]));
                if (!success) {
                    return false;
                }
            }
        }
        return dir.delete();
    }

    // 获取文件
    //Context.getExternalFilesDir() --> SDCard/Android/data/你的应用的包名/files/ 目录，一般放一些长时间保存的数据
    //Context.getExternalCacheDir() --> SDCard/Android/data/你的应用包名/cache/目录，一般存放临时缓存数据
    public static long getFolderSize(File file) throws Exception {
        long size = 0;
        try {
            File[] fileList = file.listFiles();
            for (int i = 0; i < fileList.length; i++) {
                Log.d("test11","file"+i+" = "+fileList[i].toString());
                // 如果下面还有文件
                if (fileList[i].isDirectory()) {
                    size = size + getFolderSize(fileList[i]);
                } else {
                    size = size + fileList[i].length();
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return size;
    }

    /**
     * 格式化单位
     *
     * @param size
     * @return
     */
    public static String getFormatSize(double size) {
        double kiloByte = size / 1024;
        if (kiloByte < 1) {
//            return size + "Byte";
            return "0.0M";
        }

        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";
    }


    /**
     * 弹框确认方法
     */
    public static void showWaitingDialog(Context context){
        //弹框
        popupConfirmDialog(context , "清除中...", R.mipmap.ch_logo_qq);
    }


    private static Dialog modifyDialog;
    static ShowClearResultListener mListener;
    private static void popupConfirmDialog(Context context, String content, int resId) {
        modifyDialog = new Dialog(context);
        //弹框内容
        if (modifyDialog == null) {
           /* View contentView = LayoutInflater.from(context).inflate(R.layout.dialog_waiting_for_opr, null);
            TextView modifyContent = (TextView) contentView.findViewById(R.id.dialog_content_text);
            modifyContent.setText(content);
            ImageView modifyImage = (ImageView)contentView.findViewById(R.id.dialog_content_image);
            modifyImage.setImageDrawable(context.getResources().getDrawable(resId));
            modifyDialog = new Dialog(context, R.style.clearCacheDialogTheme);  //使用自定义的样式
            modifyDialog.setCanceledOnTouchOutside(false);  //外围点击不消失
            modifyDialog.setContentView(contentView);*/
        }
//        modifyDialog.show();
        sleepToWaitClear();
    }

    static Handler mHandler = new Handler();
    private static void sleepToWaitClear(){
        mHandler.postDelayed(mRunnableDialogDismiss,1000);  //延迟启动
    }

    private static Runnable mRunnableDialogDismiss = new Runnable() {
        @Override
        public void run() {
            if(modifyDialog != null ){
                modifyDialog.dismiss();
                modifyDialog = null;
                mListener.Clear(isClearSuccess);
            }
        }
    };

    /**
     * 1秒后回调清除结果
     */
    public interface ShowClearResultListener{
        void Clear(boolean isClear);
    }
}