Android获取内置和外置sd卡路径的方法

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"></uses-permission>

Environment.getExternalStorageDirectory().getPath();

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import android.app.Activity;
import android.os.storage.StorageManager;

public class StorageList {
private Activity mActivity;
private StorageManager mStorageManager;
private Method mMethodGetPaths;

public StorageList(Activity activity) {
mActivity = activity;
if (mActivity != null) {
mStorageManager = (StorageManager)mActivity.getSystemService(Activity.STORAGE_SERVICE);
try {
mMethodGetPaths = mStorageManager.getClass().getMethod("getVolumePaths");
} catch (NoSuchMethodException e) {
e.printStackTrace();
}
}
}

public String[] getVolumePaths() {
String[] paths = null;
try {
paths = (String[]) mMethodGetPaths.invoke(mStorageManager);
} catch (IllegalArgumentException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (InvocationTargetException e) {
e.printStackTrace();
}
return paths;
}
}