android camera系列

Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(intent, REQUEST_CODE_CAMERA);

@Override
    protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if(requestCode == REQUEST_CODE_CAMERA){
            Bundle extras = data.getExtras();
            Bitmap bitmap = (Bitmap) extras.get("data");
            iv.setImageBitmap(bitmap);
        }
    }