custom dialog

public void dialogSetQuantity(Context context, Product product) {
    final Dialog dialog = new Dialog(mContext, R.style.WideDialog);    dialog.getWindow().setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));
    final DialogQuantityBinding mDialogBinding = DataBindingUtil.inflate(LayoutInflater.from(mContext), R.layout.dialog_quantity, null, false);    dialog.setContentView(mDialogBinding.getRoot());
    mDialogBinding.edtQuantity.setText(String.valueOf(product.getTempQty()));    mDialogBinding.edtQuantity.setSelection(mDialogBinding.edtQuantity.getText().length());    mDialogBinding.txtTitle.setText(product.getProductName());
    mDialogBinding.txtCancel.setOnClickListener(new View.OnClickListener() {
        @Override        public void onClick(View v) {
            dialog.dismiss();            Utils.getInstance().hideKeyboard(v, mContext);
        }
    });
    mDialogBinding.edtQuantity.addTextChangedListener(new TextWatcher() {
        @Override        public void beforeTextChanged(CharSequence s, int start, int count, int after) {

        }

        @Override        public void onTextChanged(CharSequence s, int start, int before, int count) {
            if (Utils.validateString(mDialogBinding.edtQuantity.getText().toString().trim())) {
                int qty = Integer.parseInt(mDialogBinding.edtQuantity.getText().toString().trim());                if (qty > product.getQty()) {
                    mDialogBinding.txtOk.setTextColor(mContext.getResources().getColor(R.color.divider_color));                    mDialogBinding.txtOk.setEnabled(false);                    mDialogBinding.txtOk.setClickable(false);
                } else {
                    if(qty < 1) {
                        mDialogBinding.txtOk.setTextColor(mContext.getResources().getColor(R.color.divider_color));
                    }else{
                        mDialogBinding.txtOk.setEnabled(true);                        mDialogBinding.txtOk.setClickable(true);                        mDialogBinding.txtOk.setTextColor(mContext.getResources().getColor(R.color.black));                    }
                }
            }
        }

        @Override        public void afterTextChanged(Editable s) {

        }
    });
    if (Utils.validateString(mDialogBinding.edtQuantity.getText().toString().trim())) {
        int qty = Integer.parseInt(mDialogBinding.edtQuantity.getText().toString().trim());        if (qty > product.getQty()) {
            mDialogBinding.txtOk.setTextColor(mContext.getResources().getColor(R.color.divider_color));            mDialogBinding.txtOk.setEnabled(false);            mDialogBinding.txtOk.setClickable(false);
        } else {
            mDialogBinding.txtOk.setEnabled(true);            mDialogBinding.txtOk.setClickable(true);            mDialogBinding.txtOk.setTextColor(mContext.getResources().getColor(R.color.black));
        }
    }

    mDialogBinding.txtMessage.setText(mContext.getResources().getString(R.string.please_enter_quantity_between) + " " + product.getQty());    mDialogBinding.txtOk.setOnClickListener(new View.OnClickListener() {
        @Override        public void onClick(View v) {

            if (Utils.validateString(mDialogBinding.edtQuantity.getText().toString().trim())) {
                int qty = Integer.parseInt(mDialogBinding.edtQuantity.getText().toString().trim());                if (qty > product.getQty()) {
                    mDialogBinding.txtOk.setTextColor(mContext.getResources().getColor(R.color.divider_color));
                } else {
                    dialog.dismiss();                    mDialogBinding.txtOk.setTextColor(mContext.getResources().getColor(R.color.black));                    product.setTempQty(Integer.parseInt(mDialogBinding.edtQuantity.getText().toString().trim()));                    int pos = alstProduct.indexOf(product);                    alstProduct.set(pos, product);                    notifyDataSetChanged();
                }
            }
        }
    });    dialog.show();}

=======================

dialog_quantity.xml

<?xml version="1.0" encoding="utf-8"?><layout xmlns:android="http://schemas.android.com/apk/res/android">
    <LinearLayout        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:layout_gravity="center"        android:layout_margin="@dimen/dp20"        android:background="@android:color/transparent"        android:gravity="center"        android:orientation="vertical">
        <LinearLayout            android:id="@+id/lyt_main"            android:layout_width="match_parent"            android:layout_height="wrap_content"            android:background="@drawable/profile_ractangle_box"            android:orientation="vertical"            android:paddingBottom="@dimen/dp10"            android:paddingLeft="@dimen/dp10"            android:paddingRight="@dimen/dp10">
            <TextView                android:id="@+id/txtTitle"                fontPath="fonts/Poppins-Medium.ttf"                android:layout_width="match_parent"                android:layout_height="wrap_content"                android:layout_gravity="center"                android:layout_marginLeft="@dimen/dp10"                android:layout_marginRight="@dimen/dp10"                android:layout_marginTop="@dimen/dp10"                android:gravity="center"                android:text=""                android:textColor="@color/white"                android:textSize="@dimen/sp20" />
            <TextView                android:id="@+id/txtMessage"                fontPath="fonts/Poppins-Medium.ttf"                android:layout_width="match_parent"                android:layout_height="wrap_content"                android:layout_gravity="center"                android:layout_marginLeft="@dimen/dp10"                android:layout_marginRight="@dimen/dp10"                android:gravity="center"                android:text=""                android:textColor="@color/white"                android:textSize="@dimen/sp16" />
            <EditText                android:id="@+id/edt_quantity"                android:layout_width="match_parent"                android:layout_height="wrap_content"                android:layout_gravity="center"                android:layout_margin="@dimen/dp15"                android:background="@drawable/edittext_remark"                android:gravity="center|left"                android:inputType="number"                android:maxLines="5"                android:maxLength="5"                android:paddingBottom="@dimen/dp5"                android:paddingLeft="@dimen/dp10"                android:paddingRight="@dimen/dp10"                android:paddingTop="@dimen/dp5"                android:singleLine="false"                android:textColor="@color/black" />
            <LinearLayout                android:layout_width="match_parent"                android:layout_height="wrap_content"                android:orientation="horizontal"                android:paddingBottom="@dimen/dp10">
                <TextView                    android:id="@+id/txt_ok"                    style="@style/txtDialogTextStyle"                    android:layout_width="0dp"                    android:layout_height="wrap_content"                    android:layout_weight="0.5"                    android:text="@string/btn_ok" />
                <TextView                    android:id="@+id/txt_cancel"                    style="@style/txtDialogTextStyle"                    android:layout_width="0dp"                    android:layout_height="wrap_content"                    android:layout_weight="0.5"                    android:text="@string/btn_cancel" />
            </LinearLayout>        </LinearLayout>    </LinearLayout></layout>