android中的类强制转换异常?
嗨,除了这一行之外,我还有班上的演员android中的类强制转换异常?,android,Android,嗨,除了这一行之外,我还有班上的演员 wheel = (WheelView) findViewById(R.id.wheel); <LinearLayout android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_centerInParent="true" android:layout_margin="10dip" an
wheel = (WheelView) findViewById(R.id.wheel);
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:layout_margin="10dip"
android:background="@drawable/wheel_side_background">
<com.WheelView
android:id="@+id/wheel"
android:layout_width="fill_parent"
android:layout_height="150dip"
android:layout_marginTop="1dip"
android:layout_marginBottom="1dip">
您已声明类型为
com.WheelView
的布局对象。但是,您试图将其强制转换为另一个类,com.skynextech.firstdentalcare.WheelView
。这就是问题所在。我假设com.WheelView
是一个输入错误。此外,在关闭LinearLayout之前,请关闭xml中的WheelView标记
Exception:10-10 15:20:17.700: ERROR/AndroidRuntime(720): Caused by: java.lang.ClassCastException: com.skynextech.firstdentalcare.WheelView
10-10 15:20:17.700: ERROR/AndroidRuntime(720): at com.skynextech.firstdentalcare.PatientSetInfo.onCreate(PatientSetInfo.java:81)
10-10 15:20:17.700: ERROR/AndroidRuntime(720): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
10-10 15:20:17.700: ERROR/AndroidRuntime(720): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)