CODEWITHSUNDEEP
javaandroidandroid-emulatorcustom-controls
Lordking
Lordking

Reputation: 1413

Creating custom button class in Android

I'm trying to create custom button class for my android app 

public class TicTacButton extends Button

I've set all the constructors inside the TicTacButton and created custom methods and properties. In my main activity, I've tried to initialize the Buttons as 

TicTacButton btn = (TicTacButton) findViewById(R.id.button1);

I'm getting a

java.castClassException. android.widget.Button cannot be cast to com.example.tictactoetitan.TicTacButton

I tried changing my xml file as 

<TicTacButton
        android:id="@+id/button2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignTop="@+id/button1"
        android:layout_toRightOf="@+id/button1" />

It didn't work.

Upvotes: 2

Views: 7689

Answers (1)

Lordking
Lordking

Reputation: 1413

Using the full package name in the XML file fixed it.

<com.example.tictactoetitan.TicTacButton
        android:id="@+id/button2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignTop="@+id/button1"
        android:layout_toRightOf="@+id/button1" />

Upvotes: 4

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