//1.獲取內存可用大小,內存路徑  String path=Environment.getDataDirectory().getAbsolutePath();  String memoryAvaliSpace= Formatter.formatFileSize(this,getAvailSpace(path));  //2.獲取sd卡可用大小，sd卡路徑  String sdPath=Environment.getExternalStorageDirectory().getAbsolutePath();  String sdAvaliSpace= Formatter.formatFileSize(this,getAvailSpace(sdPath));private long getAvailSpace(String path) {  //獲取可用內存大小  StatFs statfs=new StatFs(path);  //獲取可用區(qū)塊的個數  long count=statfs.getAvailableBlocks();  //獲取區(qū)塊大小  long size=statfs.getBlockSize();  //可用空間總大小  return count*size; }