12/30/2023 0 Comments Any kotlinThe this reference in Lambda refers to the class that surrounds it. From the compiler's point of view, a lambda is a block of code, not an object, and it cannot be treated as an object reference. Note that there is no this inside a lambda like an anonymous class object: there is no way to refer to an instance of the anonymous class to which the lambda is converted. The SAM constructor accepts only one host - a lambda used as the single abstract method body of a functional interface - and returns an instance of the class that implements the interface. The name of the SAM constructor is the same as the name of the underlying functional interface. Public interface OnClickListener / / test This means that you can't call toInt() directly on value because it doesn't know that it contains a String at compile time, even though it does at runtime.Posted on April 1, 2023, 12:13 p.m. The reason you must cast to a String first is because toInt() is an extension method on String, and value is of type Any?. That precisely is what the toInt() method does. The fact that this String represents an integer doesn't matter, as it would need to be parsed into an Int. This isn't working because, as the exception is telling you, value contains a String, and a String cannot be coerced into an Int. Note that select Kotlin/Java as the programming language Step 2: Add Biometric permission in the manifest Go to the AndroidMenifest.xml file and add the following permission there. The problem is that you were attempting to cast directly from a String to an Int with value as Int. Step 1: Create a new project To create a new project in Android Studio please refer to How to Create/Start a New Project in Android Studio.
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