我试图使用viewswitcher在两个视图之间执行切换。一个是imageview，另一个是mappview。我有一个按钮，用户点击执行此开关，但我的代码导致了一个错误。你们知道怎么回事吗？
<?xml version="1.0" encoding="utf-8"?>
<linearlayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical">
<relativelayout
android:id="@+id/RelativeLayout01"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<imageview
android:id="@+id/banner"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignparenttop="true"
android:background="@drawable/banner_location"
android:clickable="false">
</imageview>
<linearlayout
android:id="@+id/LinearLayout01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/banner"
android:layout_centerhorizontal="true"
android:layout_gravity="center_horizontal"
android:orientation="horizontal"
android:paddingbottom="5px">
<imagebutton
android:id="@+id/btnBusSvcs"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginright="5px"
android:layout_margintop="5px"
android:background="@drawable/btn_bus_svcs">
</imagebutton>
<imagebutton
android:id="@+id/btnDrvRoute"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginleft="5px"
android:layout_margintop="5px"
android:background="@drawable/btn_drv_route">
</imagebutton>
</linearlayout>
<viewswitcher
android:id="@+id/switcher"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="@+id/imgViewBusSvcs"
android:layout_below="@+id/LinearLayout01">
<imageview
android:id="@+id/imgViewBusSvcs"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/LinearLayout01"
android:layout_centerinparent="true"
android:layout_gravity="center_horizontal"
android:background="@drawable/bus_svcs"
android:clickable="false">
</imageview>
<com.google.android.maps.mapview
android:id="@+id/mapview"
android:layout_width="fill_parent"
android:layout_height="300px"
android:apikey="REMOVE MY API KEY"
android:clickable="true">
</com.google.android.maps.mapview>
</viewswitcher>
<imagebutton
android:id="@+id/btnBackHome"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignparentbottom="true"
android:layout_centerhorizontal="true"
android:layout_gravity="center_horizontal"
android:background="@drawable/btn_back_to_home">
</imagebutton>
</relativelayout>
</linearlayout>
错误就是这样
11-05 20:53:13.964: ERROR/AndroidRuntime(1417): Uncaught handler: thread main exiting due to uncaught exception
11-05 20:53:13.995: ERROR/AndroidRuntime(1417): java.lang.ClassCastException: android.widget.FrameLayout$LayoutParams
11-05 20:53:13.995: ERROR/AndroidRuntime(1417): at android.widget.RelativeLayout.getRelatedView(RelativeLayout.java:694)
11-05 20:53:13.995: ERROR/AndroidRuntime(1417): at android.widget.RelativeLayout.getRelatedViewParams(RelativeLayout.java:708)
11-05 20:53:13.995: ERROR/AndroidRuntime(1417): at android.widget.RelativeLayout.applySizeRules(RelativeLayout.java:629)
11-05 20:53:13.995: ERROR/AndroidRuntime(1417): at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:279)
11-05 20:53:13.995: ERROR/AndroidRuntime(1417): at android.view.View.measure(View.java:7115)
11-05 20:53:13.995: ERROR/AndroidRuntime(1417): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:2875)
11-05 20:53:13.995: ERROR/AndroidRuntime(1417): at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:888)
11-05 20:53:13.995: ERROR/AndroidRuntime(1417): at android.widget.LinearLayout.measureVertical(LinearLayout.java:350)
11-05 20:53:13.995: ERROR/AndroidRuntime(1417): at android.widget.LinearLayout.onMeasure(LinearLayout.java:278)
11-05 20:53:13.995: ERROR/AndroidRuntime(1417): at android.view.View.measure(View.java:7115)
11-05 20:53:13.995: ERROR/AndroidRuntime(1417): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:2875)
11-05 20:53:13.995: ERROR/AndroidRuntime(1417): at android.widget.FrameLayout.onMeasure(FrameLayout.java:245)
11-05 20:53:13.995: ERROR/AndroidRuntime(1417): at android.view.View.measure(View.java:7115)
11-05 20:53:13.995: ERROR/AndroidRuntime(1417): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:2875)
11-05 20:53:13.995: ERROR/AndroidRuntime(1417): at android.widget.FrameLayout.onMeasure(FrameLayout.java:245)
11-05 20:53:13.995: ERROR/AndroidRuntime(1417): at android.view.View.measure(View.java:7115)
11-05 20:53:13.995: ERROR/AndroidRuntime(1417): at android.view.ViewRoot.performTraversals(ViewRoot.java:698)
11-05 20:53:13.995: ERROR/AndroidRuntime(1417): at android.view.ViewRoot.handleMessage(ViewRoot.java:1482)
11-05 20:53:13.995: ERROR/AndroidRuntime(1417): at android.os.Handler.dispatchMessage(Handler.java:99)
11-05 20:53:13.995: ERROR/AndroidRuntime(1417): at android.os.Looper.loop(Looper.java:123)
11-05 20:53:13.995: ERROR/AndroidRuntime(1417): at android.app.ActivityThread.main(ActivityThread.java:3948)
11-05 20:53:13.995: ERROR/AndroidRuntime(1417): at java.lang.reflect.Method.invokeNative(Native Method)
11-05 20:53:13.995: ERROR/AndroidRuntime(1417): at java.lang.reflect.Method.invoke(Method.java:521)
11-05 20:53:13.995: ERROR/AndroidRuntime(1417): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:782)
11-05 20:53:13.995: ERROR/AndroidRuntime(1417): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:540)
11-05 20:53:13.995: ERROR/AndroidRuntime(1417): at dalvik.system.NativeStart.main(Native Method)
非常感谢您的帮助！：）
最佳答案
您是在运行时设置布局参数，还是在XML中设置所有内容？
您是否尝试将ViewSwitcher的两个视图分别包装到其自己的线性布局中？