addView(视图)在带有片段的AdapterView中不支持
addView(视图)在带有片段的AdapterView中不支持
提问于 2015-10-09 18:54:01
我在我的应用程序中有两个片段，我正在为tablet创建两个窗格模式，并且它的运行正常，但是一个窗格模式(对于普通的手机)每次运行应用程序都会崩溃。
这是MainActivity..。
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
if (findViewById(R.id.detail_container) != null) {
// The detail container view will be present only in the large-screen layouts
// (res/layout-sw600dp). If this view is present, then the activity should be
// in two-pane mode.
mTwoPane = true;
// In two-pane mode, show the detail view in this activity by
// adding or replacing the detail fragment using a
// fragment transaction.
if (savedInstanceState == null) {
getSupportFragmentManager().beginTransaction()
.replace(R.id.detail_container, new DetailFragment(), DETAILFRAGMENT_TAG)
.commit();
}
}
else{
mTwoPane = false;
getSupportFragmentManager().beginTransaction()
.replace(R.id.main_container, new PlaceholderFragment())
.commit();
}我有两个activity_main.xml，在文件夹布局中-sw600dp。
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/main_container"
android:name="com.example.moviefinal.MainFragment"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="2"
tools:layout="@android:layout/list_content"/>这是用于2窗格模式(Tablet UI)。
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:baselineAligned="false"
android:divider="?android:attr/dividerHorizontal"
android:orientation="horizontal"
tools:context="com.example.moviefinal.MainActivity">
<!--
This layout is a two-pane layout for the Items master/detail flow.
-->
<fragment
android:id="@+id/main_container"
android:name="com.example.moviefinal.MainFragment"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="2"
tools:layout="@android:layout/list_content"
/>
<FrameLayout
android:id="@+id/detail_container"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="4" />
</LinearLayout>这是in MainFragment.java
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
final Bundle savedInstanceState) {
rootView = inflater.inflate(R.layout.fragment_main, container, false);
db = new DBAdapter(this.getActivity());
gridView = (GridView) rootView.findViewById(R.id.gridview);
ImageAdapter imgAdapter = new ImageAdapter(getActivity());
gridView.setAdapter(imgAdapter);Fragment_main.xml
<?xml version="1.0" encoding="utf-8"?>
<GridView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/gridview"
android:name="com.example.moviefinal.MainFragment"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:columnWidth="85dp"
android:numColumns="auto_fit"
android:verticalSpacing="0dp"
android:horizontalSpacing="0dp"
android:gravity="center"
android:stretchMode="columnWidth"
tools:context=".MainActivity$PlaceholderFragment"
/>我发现了那些错误：
10-09 14:09:15.841 16029-16029/com.example.moviefinal E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: com.example.moviefinal, PID: 16029
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.moviefinal/com.example.moviefinal.MainActivity}: java.lang.UnsupportedOperationException: addView(View) is not supported in AdapterView
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2298)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360)
at android.app.ActivityThread.access$800(ActivityThread.java:144)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5221)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
Caused by: java.lang.UnsupportedOperationException: addView(View) is not supported in AdapterView
at android.widget.AdapterView.addView(AdapterView.java:456)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:968)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1136)
at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:739)
at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1499)
at android.support.v4.app.FragmentActivity.onStart(FragmentActivity.java:548)
at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1220)
at android.app.Activity.performStart(Activity.java:5949)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2261)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360)
at android.app.ActivityThread.access$800(ActivityThread.java:144)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5221)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)我认为GridView布局导致了这个错误！任何帮助！提前谢谢。
回答 1
Stack Overflow用户
回答已采纳
发布于 2015-10-09 20:34:55
你的第一个问题是：
<fragment
android:id="@+id/main_container"
android:name="com.example.moviefinal.MainFragment"如果在XML中声明一个片段，则无法以编程方式将其替换为另一个片段。
只需在这里放置一个FrameLayout，并在视图创建时添加您的片段。
另外，从您的GridView元素XML中删除以下内容：
android:name="com.example.moviefinal.MainFragment"我认为这就是导致"addView()不受支持“的原因。
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原文链接：
https://stackoverflow.com/questions/33045297
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