在RadioButton上使用OnCheckedChangeListener反向显示/隐藏布局 [英] Reverse show / hide of layouts with OnCheckedChangeListener on a RadioButton

问题描述

代码

对于我的应用程序中的结帐，我让用户通过在RadioButton组中选择付款方式来决定他要使用的付款方式:

For the checkout in my app, I let the user decide the payment method he wants to use by selecting it in a RadioButton Group:

        <RadioGroup
            android:id="@+id/payment_method"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            >

            <RadioButton
                android:id="@+id/radio_prepaid"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="prepaid"
                android:tag="prepaid"
                />

            <RadioButton
                android:id="@+id/radio_creditcard"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="creditcard"
                android:textAllCaps="true"
                android:tag="creditcard"
                />
        </RadioGroup>

从用户选择中，我要显示或隐藏匹配的布局:

From the user selection I want to show or hide the matching Layout:

    <RelativeLayout
    android:id="@+id/relativeLayout_card"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:visibility="gone"
    >
    ...
    </RelativeLayout>

或

<androidx.constraintlayout.widget.ConstraintLayout
    android:id="@+id/cL_preapid"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:visibility="gone"
    >
...
</ConstraintLayout>

我是用这部分代码做到的:

I did it with this part of code:

    CompoundButton.OnCheckedChangeListener onPaymentChangedListener = (compoundButton,b) -> {

      if(compoundButton.getTag().equals("prepaid")) {
          relativeLayout_card.setVisibility(View.GONE);
          cl_prepaid.setVisibility(View.VISIBLE);

      }
      if(compoundButton.getTag().equals("creditcard")) {
          cl_prepaid.setVisibility(View.GONE);
          relativeLayout_card.setVisibility(View.VISIBLE);
      }

    };

    rb_creditcard.setOnCheckedChangeListener(onPaymentChangedListener);
    rb_prepaid.setOnCheckedChangeListener(onPaymentChangedListener);

问题

1.单击在我的预付费/信用卡"单选按钮上，可以完美显示匹配的视图

1. CLICK on my Prepaid / CreditCard RadioButton it shows the matching view perfectly

2.在我的Prepaid/CreditCard单选按钮上单击，它根本不执行任何操作

2. CLICK on my Prepaid / CreditCard RadioButton it does simply nothing

3.单击，在我的Prepaid/CreditCard单选按钮上，它会颠倒视图:"prepaid"显示CreditCard布局，"creditcard"显示我PrepaidPay Layout

3. CLICK on my Prepaid / CreditCard RadioButton it reverses the views: "prepaid" shows the CreditCard Layout, "creditcard" shows me PrepaidPay Layout

这是布局问题吗(我应该实现ViewSwwichter/ViewPager)还是我的代码有错误?

Is this a problem with the Layouts (should I implement a ViewSwwichter / ViewPager) or is there an error in my code?

谢谢

推荐答案

而不是每个 RadioButton 尝试在 RadioGroup

payment_method.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener()
    {
        public void onCheckedChanged(RadioGroup group, int checkedId)
        {
            RadioButton checkedRadioButton = (RadioButton)group.findViewById(checkedId);


            if(checkedRadioButton.isChecked()) {

                if (checkedId == R.id.radio_prepaid)
                {
                    relativeLayout_card.setVisibility(View.GONE);  
                    cl_prepaid.setVisibility(View.VISIBLE); 

                } 
                else if (checkedId == R.id.radio_creditcard)
                {
                    cl_prepaid.setVisibility(View.GONE);  
                    relativeLayout_card.setVisibility(View.VISIBLE); 

                } 
            }
        }
    });

这篇关于在RadioButton上使用OnCheckedChangeListener反向显示/隐藏布局的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！