拍照并将其传递给另一项活动

Question

我想创建一个简单的应用程序，我可以拍照并传递这张照片，然后关闭相机并将此照片传递给另一个活动。我不知道怎么开始。你能举一些例子我怎么能这么简单地做到这一点？

Answer 1

捕获图像：     int CAMERA_REQUEST = 1888;

    Intent cameraIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
    cameraIntent.putExtra("putSomething", true);
    startActivityForResult(cameraIntent, CAMERA_REQUEST);

通过onActivityResult获取照片：

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {  
    super.onActivityResult(requestCode, resultCode, data);
    if (requestCode == CAMERA_REQUEST && resultCode == RESULT_OK) {  
        this.photo = (Bitmap) data.getExtras().get("data");
    }
}

您可以通过将照片转换为字节数组并传递意图来传递照片

    ByteArrayOutputStream stream = new ByteArrayOutputStream();
    photo.compress(Bitmap.CompressFormat.PNG, 90, stream);
    byte[] image = stream.toByteArray();

    Intent intent = new Intent(this, YourActivity.class);
    intent.putExtra("photo", image);
    startActivity(intent);