由于项目需要,在有外置sdcard的情况下,可能不希望直接将应用内数据存入内置sdcard,我于是专门写了一个函数来获取sdcard路径
如果有外置sdcard就获取外置sdcard,如果没有就用系统默认的"外置sdcard"(深入研究可能知道,这个外置sdcard实际是从内置sdcard里面分出来的一个分区而已)
下面直接上代码:
public static String getSDCardPath(){ String cmd = "cat /proc/mounts"; Runtime run = Runtime.getRuntime(); BufferedInputStream in=null; BufferedReader inBr=null; try { Process p = run.exec(cmd); in = new BufferedInputStream(p.getInputStream()); inBr = new BufferedReader(new InputStreamReader(in)); String lineStr; while ((lineStr = inBr.readLine()) != null) { Log.i("CommonUitls", lineStr); if (lineStr.toLowerCase().contains("sdcard".toLowerCase()) && lineStr.contains(".android_secure")) { String[] strArray = lineStr.split(" "); if (strArray != null && strArray.length >= 5) { String result = strArray[1].replace("/.android_secure", ""); Log.i("CommonUitls", result); return result; } } if(lineStr.toLowerCase().contains("extsd".toLowerCase())){ String[] strArray = lineStr.split(" "); Log.i("CommonUitls", strArray[1]); return strArray[1]; } if (p.waitFor() != 0 && p.exitValue() == 1) { Log.e("CommonUitls", "CMD cat /proc/mounts ERROR!"); } } } catch (Exception e) { e.printStackTrace(); Log.e("CommonUitls", e.toString()); }finally{ try { if(in!=null){ in.close(); } } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); Log.e("CommonUitls", e.toString()); } try { if(inBr!=null){ inBr.close(); } } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); Log.e("CommonUitls", e.toString()); } } return Environment.getExternalStorageDirectory().getPath(); }
时间: 2024-11-02 00:09:17