android - 从相机捕获返回 Imageuri=null(但数据额外)

Question

在调试以下代码时，我将 picUri 的值设为 null，并且我可以看到 picUri=null data:"Intent"{act =inline-data (has extras)}" in trace. 为什么 picUri 没有相应的 uri 而有 data extras？

public void onClick(View v) {
        if (v.getId() == R.id.capture_btn) {
            try {
                // use standard intent to capture an image
                Intent captureIntent = new Intent(
                        MediaStore.ACTION_IMAGE_CAPTURE);
                // we will handle the returned data in onActivityResult
                startActivityForResult(captureIntent, CAMERA_CAPTURE);
            } catch (ActivityNotFoundException anfe) {
                Toast toast = Toast.makeText(this, "This device doesn't support the crop action!",
                        Toast.LENGTH_SHORT);
                toast.show();
            }
        }
    }

    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        if (resultCode == RESULT_OK) {
            if (requestCode == CAMERA_CAPTURE) {
                // get the Uri for the captured image
                picUri = data.getData();
                                        }
                 }
}

Answer 1

1. 在这里传递相机Intent

   private void INTENTCAMERA() {
   Intent cameraIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
   startActivityForResult(cameraIntent, CAMERA_REQUEST);
   }
   

---

1. 然后拍下你的照片

---

protected void onActivityResult(int requestCode, int resultCode, Intent data) {  
if (requestCode == CAMERA_REQUEST && resultCode == RESULT_OK) {
    Bitmap photo = (Bitmap) data.getExtras().get("data"); 
    imageView.setImageBitmap(photo);
    knop.setVisibility(Button.VISIBLE);


    // CALL THIS METHOD TO GET THE URI FROM THE BITMAP
    Uri tempUri = getImageUri(getApplicationContext(), photo);

    // CALL THIS METHOD TO GET THE ACTUAL PATH
    File finalFile = new File(getRealPathFromURI(tempUri));

    Log.e("ResultcapturedImage-->",mImageCaptureUri);
}  
 }

public Uri getImageUri(Context inContext, Bitmap inImage) {
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
inImage.compress(Bitmap.CompressFormat.JPEG, 100, bytes);
String path = Images.Media.insertImage(inContext.getContentResolver(), 
inImage, "Title", null);
return Uri.parse(path);
}

public String getRealPathFromURI(Uri uri) {
Cursor cursor = getContentResolver().query(uri, null, null, null, null); 
cursor.moveToFirst(); 
int idx = cursor.getColumnIndex(MediaStore.Images.ImageColumns.DATA); 
return cursor.getString(idx); 
}