Question

我有代码来显示来自相机设备的捕捉图像

Intent intent    = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
                    String file_name = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss").format(new Date());
                    File file        = new File(Environment.getExternalStorageDirectory(),
                                        "tmp_avatar_" + file_name + ".jpg");
                    mImageCaptureUri = Uri.fromFile(file);
                    intent.putExtra(android.provider.MediaStore.EXTRA_OUTPUT, mImageCaptureUri);

                    try {   

                        intent.putExtra("return-data", true);
                        intent.putExtra("mImageCaptureUri", mImageCaptureUri); 
                        startActivityForResult(intent, PICK_FROM_CAMERA);
                    } catch (Exception e) {
                        e.printStackTrace();
                    }

并从路径设置图像位图，当我从纵向视图相机设备捕获图像时，它工作，但是当我从横向视图相机捕获图像时出现错误，我认为这是因为我检索图像的活动是肖像。所以你可以给我建议，以便我可以从肖像或风景摄像机捕捉图像？谢谢

Answer 1

试试这个

首先开始意图

Intent cameraIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); 
startActivityForResult(cameraIntent, CAMERA_REQUEST);

然后是结果的活动

 protected void onActivityResult(int requestCode, int resultCode, Intent data) {  
    if (requestCode == CAMERA_REQUEST) {  
        if(data!=null && resultCode == RESULT_OK)
        {
        bitMapForProfilePic = (Bitmap) data.getExtras().get("data");
        bitMapForProfilePic =Bitmap.createScaledBitmap(bitMapForProfilePic, getWindowManager().getDefaultDisplay().getWidth()/5, getWindowManager().getDefaultDisplay().getHeight()/4, true);
        registration_profilePicID.setImageBitmap(bitMapForProfilePic);           bitMapForProfilePic=null;
        }
      }
    }

如果你想存储位图

    extStorageDirectory = Environment.getExternalStorageDirectory().toString();
    OutputStream outStream = null;
   File file = new File(extStorageDirectory, "profilepicture.PNG");
   try {
    outStream = new FileOutputStream(file);
    bitMapForProfilePic.compress(Bitmap.CompressFormat.PNG, 100, outStream);

    outStream.flush();
    outStream.close();


   } catch (FileNotFoundException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
   } catch (IOException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
   }

然后设置图像

view.setImageBitmap(BitmapFactory.decodeFile("/sdcard/profilepicture.PNG"));

如果您有任何疑问，请告诉我......

Answer 2

我在其中一个应用中遇到过类似的问题，我已按以下方式解决了这个问题：首先保存您的实例状态：

@Override
protected void onSaveInstanceState(Bundle state) {
    super.onSaveInstanceState(state);
state.putString(IMAGE_FILE_PATH, imageFilePath); }

然后恢复它：

@Override
protected void onRestoreInstanceState(Bundle state) {
    super.onRestoreInstanceState(state);
ImageFilePath = state.getString(IMAGE_FILE_PATH); }

这适用于我，但变量ImageFilePath应该是您的Activity的全局，所以也许有更优雅的方式来实现这个

Android：强制关闭从相机横向获取图片图像

2 个答案: