音频录音机Android

Question

我正在做一个应用程序来录制声音，但是当我尝试录制声音时，模拟器停止了，因为它要求我插入SD卡。我必须做什么？我离不开SD卡吗？

谢谢！

package proiektua.proiektua; 


import java.io.FileDescriptor; 

import android.media.MediaPlayer; 
import android.net.Uri; 
import android.os.Bundle; 

import android.provider.MediaStore; 
import android.app.Activity; 
import android.content.Intent; 
import android.view.Menu; 
import android.view.View; 


public class MainActivity extends Activity { 

     int peticion = 1; 
     Uri url1; 
     private int STATE_CONFIGURE; 
     private int mState = STATE_CONFIGURE; 


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

     @Override 
     public boolean onCreateOptionsMenu(Menu menu) { 
      // Inflate the menu; this adds items to the action bar if it is present. 
      getMenuInflater().inflate(R.menu.main, menu); 
      return true; 
     } 

     public void grabar(View v) { 
      Intent intent = new Intent(MediaStore.Audio.Media.RECORD_SOUND_ACTION); 
      startActivityForResult(intent, peticion);} 

      public void setOutputFile(FileDescriptor fd) { 
        switch (mState) { 
       case STATE_RECORD: 
         throw new RuntimeException("setOutputFile cannot be called while recording!"); 

        case STATE_RELEASED: 
         throw new RuntimeException("setOutputFile called on an already released recorder!"); 
        default: 
         break; 
       } 
     } 

     public void reproducir(View v) { 
      MediaPlayer mediaPlayer = MediaPlayer.create(this, url1); 
      mediaPlayer.start(); 
     } 

     protected void onActivityResult(int requestCode, int resultCode, Intent data) { 
      if (resultCode == RESULT_OK && requestCode == peticion) { 
       url1 = data.getData(); 
      } 
     } 

    } 

Answer 1

您可以选择通过mksdcard命令创建SDCard并将其与amulator相关联。

Answer 2

请看看这个功能：

public void setOutputFile (FileDescriptor fd) 

Added in API level 3 
Pass in the file descriptor of the file to be written. Call this after setOutputFormat() but before prepare(). 

您可以决定在何处存储文件。

也看这个例子。 http://androidfreakers.blogspot.co.il/2011/09/using-mediarecorder.html