这是我的XML代码:
<Button
android:text="Button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/MyButton"
android:id="@+id/button1"
android:onClick="sayHellow" /> //RELEVANT PART
这是我的主要活动:
[Activity(Label = "FFFF", MainLauncher = true, Icon = "@drawable/icon", Theme = "@style/Theme.AppCompat.Light")]
public class MainActivity : AppCompatActivity
{
protected override void OnCreate(Bundle bundle)
{
base.OnCreate(bundle);
// Set our view from the "main" layout resource
SetContentView(Resource.Layout.Main);
}
public void sayHellow(View v) //CALLBACK FUNCTION
{
Snackbar.Make(v, "My text", Snackbar.LengthLong)
.Show();
}
}
问题是我收到运行时错误,调试窗口抱怨Button
无法找到&#34; sayHellow&#34;功能,但正如你所看到的,我根据文档声明了一切。