蚂蚁的专栏

//调用系统自带的文件管理器package com.mayi.systemfile;import android.app.Activity;import android.content.Intent;import android.net.Uri;import android.os.Bundle;import android.view.Menu;import android.view.View;import android.widget.Toast;/** * MainActivity * @author mayi * @date 2014-12-29 */public class MainActivity extends Activity {private static final int FILE_SELECT_CODE = 0X111;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);}public void OpenSystemFile(View v) {Intent intent = new Intent(Intent.ACTION_GET_CONTENT);intent.setType("*/*");intent.addCategory(Intent.CATEGORY_OPENABLE);try {startActivityForResult(Intent.createChooser(intent, "请选择文件!"),FILE_SELECT_CODE);} catch (android.content.ActivityNotFoundException ex) {// Potentially direct the user to the Market with a DialogToast.makeText(this, "请安装文件管理器", Toast.LENGTH_SHORT).show();}}@Overridepublic boolean onCreateOptionsMenu(Menu menu) {getMenuInflater().inflate(R.menu.main, menu);return true;}/** 根据返回选择的文件，，来进行操作 **/@Overridepublic void onActivityResult(int requestCode, int resultCode, Intent data) {// TODO Auto-generated method stubif (resultCode == Activity.RESULT_OK) {// Get the Uri of the selected fileUri uri = data.getData();}super.onActivityResult(requestCode, resultCode, data);}}DEMO：

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