為什么我在handlePassEvent()方法中通過如下調(diào)用anser_right布局不會(huì)生效？ps：pass_view是在anser_right ?XML布局中的ID ?android:id="@+id/pass_view"<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"? ? android:id="@+id/pass_view"? ? android:layout_width="match_parent"? ? android:layout_height="match_parent"? ? android:background="#cc000000"? ? android:gravity="center"? ? android:orientation="vertical"? ? android:visibility="gone" >但通過setContentView(R.layout.anser_right)調(diào)用anser_right布局就可以正常顯示<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"? ? android:id="@+id/pass_view"? ? android:layout_width="match_parent"? ? android:layout_height="match_parent"? ? android:background="#cc000000"? ? android:gravity="center"? ? android:orientation="vertical" >這里去掉了android:visibility="gone"?