Android相机参数图像大小

Question

嗨下面是我如何启动我的相机。我总是获得320×240的图像尺寸。关于如何设置以使相机以该设备支持的最大尺寸拍摄图像的任何想法？

 File photo = null; 
     String FILE_NAME ="20143"; 
Intent intent = new Intent("android.media.action.IMAGE_CAPTURE"); 
if (android.os.Environment.getExternalStorageState().equals(
     android.os.Environment.MEDIA_MOUNTED)) { 
    photo = new File(android.os.Environment.getExternalStorageDirectory(), FILE_NAME); 
} else { 
    photo = new File(getCacheDir(), FILE_NAME); 
}  
if (photo != null) { 
    intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(photo)); 
    selectedImageUri = Uri.fromFile(photo); 
    startActivityForResult(intent, CAMERA_PIC_REQUEST); 
} 

Answer 1

要获得该设备支持

Camera.Parameters parameters = mCamera.getParameters(); 
List<Camera.Size> sizes = parameters.getSupportedPictureSizes(); 

所有大小我用下面的方法寿获得最佳尺寸

private Camera.Size getBestPreviewSize(int width, int height, 
     Camera.Parameters parameters) { 
    Camera.Size result = null; 

    for (Camera.Size size : parameters.getSupportedPictureSizes()) { 
     Log.d("size: ", size.width + ":" + size.height); 
     if (size.width <= width && size.height <= height) { 
      if (result == null) { 
       result = size; 
      } else { 
       int resultArea = result.width * result.height; 
       int newArea = size.width * size.height; 

       if (newArea > resultArea) { 
        result = size; 
       } 
      } 
     } 
    } 

    return (result); 
} 

与int width, int height是surfaceHolder的宽度，高度。