启用和禁用RecyclerView的外观

Question

我# Formula for mortgage calculator # M = L(I(1 + I)**N) / ((1 + I)**N - 1) # M = Monthly Payment, L = Loan, I = Interest, N = Number of payments, ** = exponent # Declares and asks for user to input loan amount. Then converts to float loanAmount = input('Enter loan amount \n') loanAmount = float(loanAmount) # Declares and asks user to input number of payments in years. Then converts to float. Years * 12 to get # total number of months years = input('How many years will you have the loan? \n') years = float(years) * 12 # Declares and asks user to input interest rate. Then converts to float and input interest rate is /100/12 interestRate = input('Enter Interest Rate \n') interestRate = float(interestRate) / 100 / 12 # Formula to calculate monthly payments mortgagePayment = loanAmount * (interestRate * (1 + interestRate) ** years) / ((1 + interestRate) ** years - 1) # Prints monthly payment on next line and reformat the string to a float using 2 decimal places print("The monthly mortgage payment is\n (%.2f) " % mortgagePayment) 上有Recylerview。我可以使用以下代码禁用recylerview项目选择

Activity

但我希望以下功能显示禁用/启用外观

启用RV：

关闭，禁用 recyclerView.addOnItemTouchListener(new RecyclerView.SimpleOnItemTouchListener() { @Override public boolean onInterceptTouchEvent(RecyclerView rv, MotionEvent e) { // true: consume touch event // false: dispatch touch event return touch; } }); 中的全部或部分项目，如下所示

我猜它对于`RecyclerView＆＃39;有点透明。因为项目仍然可以点击，因为我可以看到项目点击的涟漪效应，但功能在禁用时不起作用。如何在我的应用程序中实现此行为

Answer 1

从上面的代码中禁用recyclerview后，更改每行的不透明度和每个行项的setEnable（False），同时启用recyclerview删除不透明度和setEnable（true）。

在toogle按钮的changelistner中，使用不透明度和所有内容的更改刷新recyclerview。

为您提供信息我正在添加一个简单的代码： -

toggle.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
        @Override
        public void onCheckedChanged(CompoundButton compoundButton, boolean b) {
            if(b){
                tvText.setEnabled(true);
                tvText.setText("enabled");
                tvText.setAlpha(1);
            }else{
                tvText.setText("disabled");
                tvText.setAlpha(0.4f);
                tvText.setEnabled(false);
            }
        }
    });

从if else循环刷新recyclelerview并将启用/禁用值传递给它并更改每行的alpha。

Answer 2

只需在Recycler视图上添加透明视图，并将xml中的 android：clickable =“true”设置为前景视图。