CODEWITHSUNDEEP
androidmvvmandroid-databinding
user2028
user2028

Reputation: 183

Form generic objects in method

I am trying to make one of my function to be common for all my binding activities. i would like to hear some suggestions from you on this .

At present my code looks like :-

public static void stateDialog(Context context, String[] stateList, final FragmentSendAlertBinding binding) {
    mStateDialog = new Dialog(context);
    mStateDialog.getWindow().setBackgroundDrawable(new ColorDrawable(android.graphics.Color.TRANSPARENT));
    mStateDialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
    mStateDialog.show();
    mStateDialog.setCancelable(false);
    mStateDialog.setContentView(R.layout.dialog_select_state);
    CardView cvState = (CardView) mStateDialog.findViewById(R.id.cv_state);
    final ListView states = (ListView) mStateDialog.findViewById(R.id.countryList);
    final TextView tvCancel = (TextView) mStateDialog.findViewById(R.id.tv_cancel);
    final Animation myAnim = AnimationUtils.loadAnimation(context, R.anim.bounce);
    MyBounceInterpolator interpolator = new MyBounceInterpolator(0.2, 20);
    myAnim.setInterpolator(interpolator);
    cvState.startAnimation(myAnim);
    ArrayAdapter<String> itemList = new ArrayAdapter<String>(context, android.R.layout.simple_list_item_1, stateList);
    states.setAdapter(itemList);
    states.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> arg0, View arg1, int position, long arg3) {
            binding.tvState.setText((String) arg0.getItemAtPosition(position));
            mStateDialog.dismiss();
        }
    });
    tvCancel.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            mStateDialog.dismiss();
        }
    });

}

Can i use something like :

public static void stateDialog(Context context, String[] stateList, final  ViewDataBinding<T> binding) {
       }

stateDialog is an function created inside my Alert Class and i just want this function to be common for all my Binding activities .I do not want to create separate functions for my each binding activity.

so that my this function can be used for all my binding activities not just for FragmentSendAlertBinding

This may seems silly to you but i just want to know that is there any way to achieve this .

Thanks&Regards I have never created generic classes before , i just trying

Any help would be greatly Appreciated!!!.

Upvotes: 0

Views: 87

Answers (2)

Ravi
Ravi

Reputation: 35549

Instead of making it generic i will suggest you to create interface for that

interface StateDialogListener{
    public void onValueSelect(String value);
}

Your method will look

public static void stateDialog(Context context, String[] stateList, final StateDialogListener listener) {
    mStateDialog = new Dialog(context);
    mStateDialog.getWindow().setBackgroundDrawable(new ColorDrawable(android.graphics.Color.TRANSPARENT));
    mStateDialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
    mStateDialog.show();
    mStateDialog.setCancelable(false);
    mStateDialog.setContentView(R.layout.dialog_select_state);
    CardView cvState = (CardView) mStateDialog.findViewById(R.id.cv_state);
    final ListView states = (ListView) mStateDialog.findViewById(R.id.countryList);
    final TextView tvCancel = (TextView) mStateDialog.findViewById(R.id.tv_cancel);
    final Animation myAnim = AnimationUtils.loadAnimation(context, R.anim.bounce);
    MyBounceInterpolator interpolator = new MyBounceInterpolator(0.2, 20);
    myAnim.setInterpolator(interpolator);
    cvState.startAnimation(myAnim);
    ArrayAdapter<String> itemList = new ArrayAdapter<String>(context, android.R.layout.simple_list_item_1, stateList);
    states.setAdapter(itemList);
    states.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> arg0, View arg1, int position, long arg3) {
            listener.onValueSelect((String) arg0.getItemAtPosition(position));
            //binding.tvState.setText((String) arg0.getItemAtPosition(position));
            mStateDialog.dismiss();
        }
    });
    tvCancel.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            mStateDialog.dismiss();
        }
    });

}

And finally from wherever you are calling it

stateDialog(this,<your stateList>, new StateDialogListener(){
     @Override
     public void onValueSelect(String value){
         binding.tvState.setText(value);
     }
});

Upvotes: 1

Nawaraj Sharma
Nawaraj Sharma

Reputation: 43

Create a parent class for binding activity. Note that the class should have all the methods that you're going to use from the objects of its child classes. Then create other child classes that extends the parent binding class. 

class ParentBinding{

    public void method1();

    public void method2();

    public void method3();

}

Cusom Binding class

class BindingClass1 extends ParentBinding{

@override
public void method1(){
  super();
}

@override
public void method1(){
  super();
}

@override
public void method1(){
  super();
}

}

Then your method can be written as

public static void stateDialog(Context context, String[] stateList, final ParentBinding binding) {

Upvotes: 0

Related Questions