所以我现在正在开发的应用程序主要包括一个回收站视图-包括卡片视图，每个视图都包含一些文本视图，一个编辑按钮和一个删除按钮-以及一个用于添加新内容的浮动操作按钮卡视图。 所以我的问题是我正在使用一个片段来操纵视图以添加和编辑卡视图，并且当我编辑卡时，它在应调用edit方法时调用了add方法，这是此问题所涉及的代码。 首先这是ListActivity类
@Override
public void sendData(String manuf, String name, String model, String carImage,View myView) {
saveCarToDB(myView,manuf, name, model, carImage);
}
private final static int REQUEST_IMAGE_CAPTURE = 1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_list);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
final FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
// Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
// .setAction("Action", null).show();
fragment = new com.hitham.miscarros.Fragments.DialogPickerFragment();
fragment.show(getSupportFragmentManager(),"new car picker fragment"); }
});
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private void saveCarToDB (View v,String carManuf, String carName, String carModel, String carImage){
Cars miCarro = new Cars();
miCarro.setCarManuf(carManuf);
miCarro.setCarModel(carModel);
miCarro.setCarName(carName);
miCarro.setCarImage(carImage);
db.addCar(miCarro);
Snackbar.make(v, "Fucking Shit saved", Snackbar.LENGTH_LONG).show();
Log.e("ID:", String.valueOf(db.getCarsCount()));
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
fragment.dismiss();
//Refresh activity
startActivity(new Intent(ListActivity.this, ListActivity.class));
finish();
}
}, 1273);
}
这是RecyclerViewAdapter涉及的方法
public void editCar(Cars car)
{
DialogFragment fragment = new com.hitham.miscarros.Fragments.DialogPickerFragment();
fragment.show(((FragmentActivity)context).getSupportFragmentManager(),"edit car picker fragment");
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@Override
public void sendData(String carManuf, String carName, String carModel, String carImage,View myView) {
DatabaseHandler db = new DatabaseHandler(context);
Cars car = new Cars();
car.setCarID(getAdapterPosition());
if(carManuf != null)
car.setCarManuf(carManuf);
if(carName != null)
car.setCarName(carName);
if(carModel != null)
car.setCarModel(carModel);
if(carImage != null)
car.setCarImage(carImage);
db.updateCars(car);
notifyItemChanged(getAdapterPosition(), car);
dialog.dismiss();
Intent myIntent = new Intent(context,ListActivity.class);
context.startActivity(myIntent);
((Activity)context).finish();
((Activity)context).finish();
}
}
这是dialogFragment类
package com.hitham.miscarros.Fragments;
public class DialogPickerFragment extends DialogFragment {
public interface OnInputListener {
void sendData(String carManuf,String carName,String carModel,String carImage,View v);
}
public OnInputListener onInputListener;
private static final int REQUEST_IMAGE_CAPTURE = 1;
private Button imageBu;
private Button submitBu;
private ImageView carImage;
private EditText carManuf;
private EditText carName;
private EditText carModel;
private String imagePath;
private Cars car;
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View myView = LayoutInflater.from(getActivity()).inflate(R.layout.new_car_popup,null);
carManuf = myView.findViewById(R.id.nCarManuf);
carName = myView.findViewById(R.id.nCarName);
carModel = myView.findViewById(R.id.nCarDOB);
carImage = myView.findViewById(R.id.laImagenaPuta);
imageBu = myView.findViewById(R.id.addImageID);
submitBu = myView.findViewById(R.id.addCarID);
imageBu.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
try{
if (ActivityCompat.checkSelfPermission(getActivity(), Manifest.permission.READ_EXTERNAL_STORAGE)
!= PackageManager.PERMISSION_GRANTED){
ActivityCompat.requestPermissions(getActivity(), new String[]{
Manifest.permission.READ_EXTERNAL_STORAGE, Manifest.permission.WRITE_EXTERNAL_STORAGE},
REQUEST_IMAGE_CAPTURE);
}else {
Intent galleryIntent = new Intent(Intent.ACTION_PICK, MediaStore.Images
.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(galleryIntent,REQUEST_IMAGE_CAPTURE);
}
}catch (Exception e)
{
e.printStackTrace();
}
}
});
submitBu.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
String manuf = carManuf.getText().toString();
String name = carName.getText().toString();
String model = carModel.getText().toString();
onInputListener.sendData(manuf,name,model,imagePath,v);
}
});
myView.setBackgroundColor(Color.TRANSPARENT);
return myView;
}
// public Dialog onCreateDialog(@Nullable Bundle savedInstanceState) {
//
// }
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
switch (requestCode)
{
case REQUEST_IMAGE_CAPTURE:
if (resultCode == RESULT_OK)
{
Uri selectedImage = data.getData();
String[] filePathColumn = {MediaStore.Images.Media.DATA};
Cursor miCursor = getActivity().getContentResolver().query(selectedImage,filePathColumn,null,null,null);
miCursor.moveToFirst();
int columnIndex = miCursor.getColumnIndex(filePathColumn[0]);
imagePath = miCursor.getString(columnIndex);
miCursor.close();
Bitmap laImagenaPuta = BitmapFactory.decodeFile(imagePath);
carImage.setImageBitmap(laImagenaPuta);
}
}
}
@Override
public void onAttach(Context context) {
super.onAttach(context);
try{
onInputListener = (OnInputListener) getActivity();
}catch (ClassCastException e){
Log.e("maTag","on Attach : class cast exception");
}
}
}
p.s：我只包括了我认为涉及的内容。 回到我的问题，我可以用一个片段来做还是要为每个添加和编辑按钮制作两个不同的片段？ 在此先感谢您，不便之处，敬请原谅。