Java 在android中拍摄照片的默认照相机

如何在android中使用默认摄像头拍照？

打开摄像头的目的是

Uri imageUri;
final int TAKE_PICTURE = 115;

public void capturePhoto(View view) {
    Intent intent = new Intent("android.media.action.IMAGE_CAPTURE");
    File photoFile = new File(Environment.getExternalStorageDirectory(),  "Photo.png");
    intent.putExtra(MediaStore.EXTRA_OUTPUT,
            Uri.fromFile(photoFile));
    imageUri = Uri.fromFile(photoFile);
    startActivityForResult(intent, TAKE_PICTURE);
}

@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    switch (requestCode) {
        case TAKE_PICTURE:
            if (resultCode == Activity.RESULT_OK) {
                Uri selectedImageUri = imageUri;
                //Do what ever you want
        }
    }
}

捕获后提供图像的代码是

---

这是一个简单的示例。无论如何，这将以小位图的形式返回图像。如果要检索全尺寸图像，则要复杂一点

ImageView  takePhotoView = (ImageView) findViewById(R.id.iwTakePicture);
Bitmap imageBitmap = null;
takePhotoView.setOnClickListener(new View.OnClickListener() {

            public void onClick(View v) {
                // TODO Auto-generated method stub              
                dispatchTakePictureIntent(0);
            }
        });

    private void dispatchTakePictureIntent(int actionCode) {
          Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);     
          startActivityForResult(takePictureIntent, actionCode);      
        }

    private void handleSmallCameraPhoto(Intent intent) {
        Bundle extras = intent.getExtras();
        this.imageBitmap = (Bitmap) extras.get("data");
        takePhotoView.setImageBitmap(imageBitmap);
    }

   @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) { 
        if(resultCode == RESULT_OK)
            handleSmallCameraPhoto(data);
   }

---

可能重复的谢谢你这么多，我已经摸索了大约一个小时，试图让相机对象和预览方法的工作，当这是所有我想从一开始。嗨阿卜汉，你的代码将显示所有第三方相机应用程序以及默认的相机应用程序。如果有人想只显示默认摄像头，而不显示任何第三方摄像头应用程序（如Line camera和Paper camera）的选择器，该怎么办？@NaumanZubair很难设置。我们有一个名为

SetClassName

的方法，但为此，您需要知道默认摄像头应用程序的确切类别，但我们都知道，我们有不同的

OEM

，它们可能会为默认应用程序使用不同的软件包。所以这是一种试错方案。我找到了解决方案，这里是@Abhan。我理解你的观点，但对于特定用户，根据客户的限制要求，它可能会对其他开发人员有所帮助。

protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    Uri uriImage;
    InputStream inputStream = null;
    if ( (requestCode == SELECT_IMAGE || requestCode == CAPTURE_IMAGE) && resultCode == Activity.RESULT_OK) {
        uriImage = data.getData();
        try {
            inputStream = getContentResolver().openInputStream(uriImage);
            Bitmap bitmap = BitmapFactory.decodeStream(inputStream, null, options);
            imageView.setImageBitmap(bitmap);
        } catch (NullPointerException e) {
            e.printStackTrace();
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (Exception e) {
            e.printStackTrace();
        }
        imageView.setScaleType(ImageView.ScaleType.CENTER_INSIDE);
        imageView.setAdjustViewBounds(true);
    }
}

ImageView  takePhotoView = (ImageView) findViewById(R.id.iwTakePicture);
Bitmap imageBitmap = null;
takePhotoView.setOnClickListener(new View.OnClickListener() {

            public void onClick(View v) {
                // TODO Auto-generated method stub              
                dispatchTakePictureIntent(0);
            }
        });

    private void dispatchTakePictureIntent(int actionCode) {
          Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);     
          startActivityForResult(takePictureIntent, actionCode);      
        }

    private void handleSmallCameraPhoto(Intent intent) {
        Bundle extras = intent.getExtras();
        this.imageBitmap = (Bitmap) extras.get("data");
        takePhotoView.setImageBitmap(imageBitmap);
    }

   @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) { 
        if(resultCode == RESULT_OK)
            handleSmallCameraPhoto(data);
   }