/** * 方法一 * @return */ public String getSDPath1() { File sdDir = null; boolean sdCardExist = Environment.getExternalStorageState().equals( Environment.MEDIA_MOUNTED); // 判断sd卡是否存在 if (sdCardExist) { sdDir = Environment.getExternalStorageDirectory();// 获取跟目录 return sdDir.toString(); } else { return null; } }
1、API>=23 时方法一无效(暂未测试)
2、有些厂商的Rom改动太多,对相关原生API的支持存在问题,这时方法一可能会存在问题。
方法二
public String getSDPath() { String path; path=getStoragePath(context,false); if(path==null){ path=getStoragePath(context,true); } return path; } /** * 获取内部存储和外部存储(内外sd卡)的路径, * 参数 is_removable为false时得到的是内置sd卡路径,为true则为外置sd卡路径。 * @param mContext * @param is_removale * @return */ private static String getStoragePath(Context mContext, boolean is_removale) { StorageManager mStorageManager = (StorageManager) mContext.getSystemService(Context.STORAGE_SERVICE); Class<?> storageVolumeClazz = null; try { storageVolumeClazz = Class.forName("android.os.storage.StorageVolume"); Method getVolumeList = mStorageManager.getClass().getMethod("getVolumeList"); Method getPath = storageVolumeClazz.getMethod("getPath"); Method isRemovable = storageVolumeClazz.getMethod("isRemovable"); Object result = getVolumeList.invoke(mStorageManager); final int length = Array.getLength(result); for (int i = 0; i < length; i++) { Object storageVolumeElement = Array.get(result, i); String path = (String) getPath.invoke(storageVolumeElement); boolean removable = (Boolean) isRemovable.invoke(storageVolumeElement); if (is_removale == removable) { return path; } } } catch (ClassNotFoundException e) { e.printStackTrace(); } catch (InvocationTargetException e) { e.printStackTrace(); } catch (NoSuchMethodException e) { e.printStackTrace(); } catch (IllegalAccessException e) { e.printStackTrace(); } return null; }