Android获取机身存储、内置SD卡与外置TF卡路径
16lz
2021-01-24
获取机身存储路径(可以通过openFileInput,openFileOutput进行操作)
String path=Environment.getDataDirectory().getAbsolutePath();返回/data
获取内置SD卡路径:
public String getStorageDir(){ if(!(Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED))){ return ""; } File dirFile=Environment.getExternalStorageDirectory(); Log.d(TAG, dirFile.getAbsolutePath()); return dirFile.getAbsolutePath(); }
返回/storage/emulated/o
获取外置TF卡路径:
思路:通过linux中的mount命令。
public String getTFDir(){String path="";try {InputStream ins=Runtime.getRuntime().exec("mount").getInputStream();BufferedReader reader=new BufferedReader(new InputStreamReader(ins));String line="";while((line=reader.readLine())!=null){if(line.contains("sdcard")){if(line.contains("vfat")||line.contains("fuse")){String split[]=line.split(" ");path=split[1];Log.d(TAG,path);}}}reader.close();ins.close();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}finally{}return path;}返回/storage/sdcard1这就是我们想要的路径。
获取可用空间
public static long getAvailableSize(String path){ try{ File base = new File(path); StatFs stat = new StatFs(base.getPath()); long nAvailableCount = stat.getBlockSize() * ((long) stat.getAvailableBlocks()); return nAvailableCount; }catch(Exception e){ e.printStackTrace(); } return 0; }返回bytes单位的大小。
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