Android 我怎样才能从640*X大屏幕的相机取回照片？

您好，我现在调用camera intent whit参数来放置图像，如下所示：

imageUri = Uri.fromFile(new File(Environment.getExternalStorageDirectory(), "tmpPic.jpg"));
                Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
                cameraIntent.putExtra(MediaStore.EXTRA_OUTPUT, imageUri);
                startActivityForResult(cameraIntent, 1);

String filePath = Environment.getExternalStorageDirectory() + "/tmpPic.jpg";
                if (yourSelectedImage != null)
                    yourSelectedImage.recycle();
                yourSelectedImage = null;

                final BitmapFactory.Options options = new BitmapFactory.Options();
                options.inJustDecodeBounds = true;
                BitmapFactory.decodeFile(filePath, options);
                options.inSampleSize = 1;
                // Decode bitmap with inSampleSize set
                options.inJustDecodeBounds = false;
                yourSelectedImage = BitmapFactory.decodeFile(filePath, options);
                break;

我在活动结果中检索图像，如下所示：

imageUri = Uri.fromFile(new File(Environment.getExternalStorageDirectory(), "tmpPic.jpg"));
                Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
                cameraIntent.putExtra(MediaStore.EXTRA_OUTPUT, imageUri);
                startActivityForResult(cameraIntent, 1);

String filePath = Environment.getExternalStorageDirectory() + "/tmpPic.jpg";
                if (yourSelectedImage != null)
                    yourSelectedImage.recycle();
                yourSelectedImage = null;

                final BitmapFactory.Options options = new BitmapFactory.Options();
                options.inJustDecodeBounds = true;
                BitmapFactory.decodeFile(filePath, options);
                options.inSampleSize = 1;
                // Decode bitmap with inSampleSize set
                options.inJustDecodeBounds = false;
                yourSelectedImage = BitmapFactory.decodeFile(filePath, options);
                break;

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但在第

行中断之前，您选择了edimage=BitmapFactory.decodeFile（文件路径，选项）它属于内存不足异常。我知道样本大小是获得较小图像的方式，但这是我可以指定在和处使用640*X大位图的方式吗？或者我如何至少跟踪传入的图像太大，我应该使用样本大小？
奇怪的是，你得到了OOM，我使用了基本相同的代码，没有任何问题。为什么要调用
BitmapFactory.decodeFile（文件路径，选项）两次？为了知道图像的边界，我希望这是一种设置样本大小的方法