Sorageinfo类获得Android设备上挂载的所有存储器状态

获取Android设备挂载的所有存储器

public class StorageInfo
{
    public String path;
    public String state;
    public boolean isRemoveable;//判断存储器是否可以移除

    public StorageInfo(String path) {
        this.path = path;
    }

    public boolean isMounted() {
        return "mounted".equals(state);
    }//判断存储器的挂载状态
    public static List<StorageInfo> listAvaliableStorage(Context context) {
        ArrayList<StorageInfo> storagges = new ArrayList<StorageInfo>();
        StorageManager storageManager = (StorageManager) context.getSystemService(Context.STORAGE_SERVICE);
        try {
            Class<?>[] paramClasses = {};
            Method getVolumeList = StorageManager.class.getMethod("getVolumeList", paramClasses);
            getVolumeList.setAccessible(true);
            Object[] params = {};
            Object[] invokes = (Object[]) getVolumeList.invoke(storageManager, params);
            if (invokes != null) {
                StorageInfo info = null;
                for (int i = 0; i < invokes.length; i++) {
                    Object obj = invokes[i];
                    Method getPath = obj.getClass().getMethod("getPath", new Class[0]);
                    String path = (String) getPath.invoke(obj, new Object[0]);
                    info = new StorageInfo(path);
                    File file = new File(info.path);
                    if ((file.exists()) && (file.isDirectory()) && (file.canWrite())) {
                        Method isRemovable = obj.getClass().getMethod("isRemovable", new Class[0]);
                        String state = null;
                        try {
                            Method getVolumeState = StorageManager.class.getMethod("getVolumeState", String.class);
                            state = (String) getVolumeState.invoke(storageManager, info.path);
                            info.state = state;
                        } catch (Exception e) {
                            e.printStackTrace();
                        }

                        if (info.isMounted()) {
                            info.isRemoveable = ((Boolean) isRemovable.invoke(obj, new Object[0])).booleanValue();
                            storagges.add(info);
                        }
                    }
                }
            }
        } catch (NoSuchMethodException e1) {
            e1.printStackTrace();
        } catch (IllegalArgumentException e) {
            e.printStackTrace();
        } catch (IllegalAccessException e) {
            e.printStackTrace();
        } catch (InvocationTargetException e) {
            e.printStackTrace();
        }
        storagges.trimToSize();

        return storagges;
    }
}