Android 实现在SD卡建立一个文件夹

核心提示：package com.wiseideal;import java.io.File;import android.app.Activity;import android.os.Bundle;import android.os.Environment;public class make extends Activity

package com.wiseideal;

import java.io.File;

import android.app.Activity;

import android.os.Bundle;

import android.os.Environment;

public class make extends Activity {

/** Called when the activity is first created. */

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

File sd=Environment.getExternalStorageDirectory();

String path=sd.getPath()+"/notes";

File file=new File(path);

if(!file.exists())

file.mkdir();

}

}