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我使用游标适配器将购物车项目填充到列表中。我的ListView项具有购物车计数增加和减少，同时点击按钮
- 价格的TextView
- 产品名称的TextView
- 计数的TextView
- 增量按钮
- 递减按钮移到
当我点击递增/递减键的值在一定的条件下递增/递减后接触查看行，否则计数不会改变。 在某些情况下，如果我单击第1行增量按钮，则项目计数在第2行中增加。
注意： 1.我使用光标适配器填充List。 2.使用增量&在活动类中减少clicklistener。
这里是我的代码：
cartList.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(final AdapterView<?> parent, View itemView, final int position, final long rowId) {
txt_cartProduct = (TextView) itemView.findViewById(R.id.cartProduct);
txt_cartQuantity = (TextView) itemView.findViewById(R.id.cartQuantity);
txt_cartPrice = (TextView) itemView.findViewById(R.id.cartPrice);
txt_cartPriceDum = (TextView) itemView.findViewById(R.id.cartPriceDum);
txt_cartCount = (TextView) itemView.findViewById(R.id.cartCount);
img_ivDecrease = (ImageView) itemView.findViewById(R.id.ivDecrease);
img_ivIncrease = (ImageView) itemView.findViewById(R.id.ivIncrease);
but_addTowish = (Button) itemView.findViewById(R.id.addTowish);
but_remove = (Button) itemView.findViewById(R.id.remove);
img_ivIncrease.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
strPrice = txt_cartPrice.getText().toString();
price = Integer.parseInt(strPrice);
int counter = 0;
try {
counter = Integer.parseInt(txt_cartCount.getText().toString());
} catch (NumberFormatException e) {
e.printStackTrace();
}
counter++;
if (counter > 0) {
txt_cartCount.setText(Integer.toString(counter));
txt_cartPrice.setVisibility(View.GONE);
txt_cartPriceDum.setVisibility(View.VISIBLE);
quantity = txt_cartCount.getText().toString();
total = (Integer.parseInt(quantity)) * (price);
netA = String.valueOf(total);
sum += price;
if (sum == 0) {
netAmount = Integer.parseInt(txt_cartPriceDum.getText().toString());
}
netAmount = sum;
Log.e("Sum is", String.valueOf(sum));
txt_cartPriceDum.setText(String.valueOf(total));
cartCount = Integer.parseInt(quantity);
Toast.makeText(context, "netAmount" + netAmount + "\n" + "Total" + total, Toast.LENGTH_SHORT).show();
if (counter == 1) {
cartPrice = price;
cartSum = sum;
}
if (counter == 0) {
cartPrice = 0;
cartSum = 0;
cartCount = 0;
Toast.makeText(context, "Minimum Item is 1", Toast.LENGTH_SHORT).show();
}
int count_check = 1;
if (count_check >= position) {
count_check++;
} else if (count_check == 0) {
Toast.makeText(context, "Minimum Item is 1", Toast.LENGTH_SHORT).show();
}
}
}
});
img_ivDecrease.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
strPrice = txt_cartPrice.getText().toString();
price = Integer.parseInt(strPrice);
int counter = 0;
try {
counter = Integer.parseInt(txt_cartCount.getText().toString());
} catch (NumberFormatException e) {
e.printStackTrace();
}
counter--;
if (counter > 0) {
txt_cartCount.setText(Integer.toString(counter));
txt_cartPrice.setVisibility(View.GONE);
txt_cartPriceDum.setVisibility(View.VISIBLE);
quantity = txt_cartCount.getText().toString();
total = (Integer.parseInt(quantity)) * (price);
netA = String.valueOf(total);
sum -= price;
if (sum == 0) {
netAmount = Integer.parseInt(txt_cartPriceDum.getText().toString());
}
Log.e("Sum - is", String.valueOf(sum));
txt_cartPriceDum.setText(String.valueOf(total));
cartCount = Integer.parseInt(quantity);
Toast.makeText(context, "netAmount" + netAmount + "\n" + "Total" + total, Toast.LENGTH_SHORT).show();
if (counter == 1) {
cartPrice = price;
cartSum = sum;
}
if (counter == 0) {
cartPrice = 0;
cartSum = 0;
cartCount = 0;
}
}
}
});
}
});