我找不到我的应用程序在Android中创建的文件的位置

Question

你好，我的代码有两个按钮保存并读取当我按下保存它将数据保存到SampleFile.xml，当我按下加载XML的内容文件显示在设备的屏幕上。我的应用程序工作，但是当我试图找到SampleFile.xml时，无处可寻。我想我的应用程序仿真程序和物理设备

public class MainActivity extends Activity { 
    EditText inputText; 
    TextView response; 
    Button saveButton,readButton; 

    private String filename = "SampleFile.xml"; 
    private String filepath = "MyFileStorage"; 
    File myExternalFile; 
    String myData = "<question> "+ Test.s +" <qusetion>\n"; 


    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 

     inputText = (EditText) findViewById(R.id.myInputText); 
     response = (TextView) findViewById(R.id.response); 



     saveButton = 
       (Button) findViewById(R.id.saveExternalStorage); 
     saveButton.setOnClickListener(new OnClickListener() { 
      @Override 
      public void onClick(View v) { 
       try { 
        FileOutputStream fos = new FileOutputStream(myExternalFile); 
        fos.write(myData.toString().getBytes()); 
        fos.close(); 
       } catch (IOException e) { 
        e.printStackTrace(); 
       } 
       inputText.setText(""); 
       response.setText("SampleFile.xml saved to External Storage.."); 
      } 
     }); 

     readButton = (Button) findViewById(R.id.getExternalStorage); 
     readButton.setOnClickListener(new OnClickListener() { 
      @Override 
      public void onClick(View v) { 
       try { 
        FileInputStream fis = new FileInputStream(myExternalFile); 
        DataInputStream in = new DataInputStream(fis); 
        BufferedReader br = 
          new BufferedReader(new InputStreamReader(in)); 
        String strLine; 
        while ((strLine = br.readLine()) != null) { 
         myData = myData + strLine; 
        } 
        in.close(); 
       } catch (IOException e) { 
        e.printStackTrace(); 
       } 
       inputText.setText(myData); 
       response.setText("SampleFile.xml data retrieved from External Storage..."); 
      } 
     }); 

     if (!isExternalStorageAvailable() || isExternalStorageReadOnly()) { 
      saveButton.setEnabled(false); 
     } 
     else { 
      myExternalFile = new File(getExternalFilesDir(filepath), filename); 
     } 


    } 
     private static boolean isExternalStorageReadOnly() { 
     String extStorageState = Environment.getExternalStorageState(); 
     if (Environment.MEDIA_MOUNTED_READ_ONLY.equals(extStorageState))  { 
      return true; 
     } 
     return false; 
    } 

     private static boolean isExternalStorageAvailable() { 
     String extStorageState = Environment.getExternalStorageState(); 
     if (Environment.MEDIA_MOUNTED.equals(extStorageState)) { 
      return true; 
     } 
     return false; 
    } 
} 

Answer 1

试图找到Android的文件/数据/数据/ your_package/MyFileStorage/SampleFile.xml