android-怎麼在電話記憶卡裡創建文件夾然後保存圖像？

怎麼在電話記憶卡裡創建文件夾然後保存圖像？

怎麼在電話的記憶卡創建新的文件夾"MyFolder"然後將所有拍的照片保存到那個文件夾中？請幫下我。
下邊的代碼都會將所有的照片都保存到收集默認圖片庫中。我想要創建一個新的文件夾然後把所有拍的照片都保存到那個文件夾中，我應該怎麼做？

public class PhotoCaptureExample extends Activity 
  {
protected Button _button;
protected ImageView _image;
protected TextView _field;
protected String _path;
protected boolean _taken;

protected static final String PHOTO_TAKEN   = "photo_taken";

 @Override
  public void onCreate(Bundle savedInstanceState) 
 {
    super.onCreate(savedInstanceState);

    setContentView(R.layout.main);

    _image = ( ImageView ) findViewById( R.id.image );
    _field = ( TextView ) findViewById( R.id.field );
    _button = ( Button ) findViewById( R.id.button );
    _button.setOnClickListener( new ButtonClickHandler() );
   ;
  _path = Environment.getExternalStorageDirectory() + "/myfolder   
 /"+System.currentTimeMillis()+".jpg";




    File dir = new File(_path );
    try{
      if(dir.mkdir()) {
         System.out.println("Directory created");
      } 
      else {
         System.out.println("Directory is not created");
      }}
      catch(Exception e){

    }   
}

public class ButtonClickHandler implements View.OnClickListener 
{
    public void onClick( View view ){
        Log.i("MakeMachine", "ButtonClickHandler.onClick()" );
        startCameraActivity();
    }
}

protected void startCameraActivity()
{
    Log.i("MakeMachine", "startCameraActivity()" );
    File file = new File( _path );
    Uri outputFileUri = Uri.fromFile( file );

    Intent intent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE );
    intent.putExtra( MediaStore.EXTRA_OUTPUT, outputFileUri );

    startActivityForResult( intent, 0 );
}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) 
{   
    Log.i( "MakeMachine", "resultCode: " + resultCode );
    switch( resultCode )
    {
        case 0:
            Log.i( "MakeMachine", "User cancelled" );
            break;

        case -1:
            onPhotoTaken();
            break;
    }
}

protected void onPhotoTaken()
{
    Log.i( "MakeMachine", "onPhotoTaken" );

    _taken = true;

    BitmapFactory.Options options = new BitmapFactory.Options();
    options.inSampleSize = 4;

    Bitmap bitmap = BitmapFactory.decodeFile( _path, options );

    _image.setImageBitmap(bitmap);

    _field.setVisibility( View.GONE );
}

@Override 
protected void onRestoreInstanceState( Bundle savedInstanceState){
    Log.i( "MakeMachine", "onRestoreInstanceState()");
    if( savedInstanceState.getBoolean( PhotoCaptureExample.PHOTO_TAKEN ) ) {
        onPhotoTaken();
    }
}

@Override
protected void onSaveInstanceState( Bundle outState ) {
    outState.putBoolean( PhotoCaptureExample.PHOTO_TAKEN, _taken );
}
}

最佳回答：

參考，這個應該能夠滿足你的要求：Android調用手機拍照，將拍照的圖片放在指定文件夾中