Method has incorrect signature - android-studio

Question

Despite having the method onButtonHomeClick declared in the Java file MainActivity, when I attempt to reference the method in the XML I receive the error message: "Method onButtonHomeClick in MainActivity has incorrect signature". Both of them are below, and I cannot for the life of me figure out why it is returning such an error, especially since attempting to navigate to the declaration by Ctrl clicking onButtonHomeClick in the XML file navigates to the method in the Java class.
And it's definitely struggling to find the method, as the Android Monitor returns a fatal error when attempting to assign the behaviour to the button.
<!-- XML file -->
<item
android:id="#+id/button_home"
android:orderInCategory="100"
android:icon="#drawable/home"
android:title="Home"
android:onClick="onButtonHomeClick"
app:showAsAction="always"
/>
//Java method
public void onButtonHomeClick(View v){
Intent intent = new Intent(this, MainActivity.class);
}

Answer 1

Clean your project and then make sure the method onButtonHomeClick() is declared as public void.

Answer 2

Your On Click Method has Invalid Arguments for MenuItem. For MenuItem, it is
public void onClickMethod(MenuItem menuItem) {
// Your code here
}
Whereas public void onClickMethod(View view) {...} is for View present in your activity layout.
Also just creating an Intent will not start the Activity. For starting the activity you should pass your intent to startActivity().

Answer 3

you need to add startActivity(intent); in your method, so it should be something like this:
public void onButtonHomeClick(View v){
Intent intent = new Intent(this, MainActivity.class);
startActivity(intent);
}
I tried your code with startActivity(intent); included and it works just fine

Answer 4

in kotlin:
<android.support.v7.widget.AppCompatButton
android:id="#+id/mRecharge_btn"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:onClick="onClick"
android:textSize="18sp" />
in your activity create public fun onClick
public fun onClick(view: View?) {
// do ur logic here
}

Answer 5

You must also define the android: onClick method to all views. Remember that the click method name is the same in all views.
<RadioGroup
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layoutDirection="rtl" >
<RadioButton
android:id="#+id/radioButton_score"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Score"
android:onClick="OnClickView"/>
<RadioButton
android:id="#+id/radioButton_discoun_percent"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Discoun Percent"
android:onClick="OnClickView" />
</RadioGroup>
public void OnClickView(View view) {
switch(view.getId()){
case R.id.radioButton_score:
Toast.makeText(this, "click Score",
Toast.LENGTH_SHORT).show();
break;
case R.id.radioButton_discoun_percent:
Toast.makeText(this, "click Discoun Percent",
Toast.LENGTH_SHORT).show();
break;
}
}

Answer 6

Did you remember to include in your MainActvity.java file the import for the View class? (It's not imported by default.)
import android.view.View;