我在主活动文件中有一个gridview布局。最初我能够通过滚动查看所有图像，但后来当我在同一活动中添加了汉堡包菜单时，gridview图像没有显示所有图像，我也无法滚动。 我在activity.xml文件中添加了scrollview，不幸的是app停止了。 这是logcat：
08-01 13:14:05.028 6153-6153/com.example.luke.goweb E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.luke.goweb, PID: 6153
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.luke.goweb/com.example.luke.goweb.MainActivity}: android.view.InflateException: Binary XML file line #88: ScrollView can host only one direct child
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2416)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)
at android.app.ActivityThread.-wrap11(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
Caused by: android.view.InflateException: Binary XML file line #88: ScrollView can host only one direct child
at android.view.LayoutInflater.inflate(LayoutInflater.java:539)
at android.view.LayoutInflater.inflate(LayoutInflater.java:423)
at android.view.LayoutInflater.inflate(LayoutInflater.java:374)
at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:280)
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:140)
at com.example.luke.goweb.MainActivity.onCreate(MainActivity.java:38)
at android.app.Activity.performCreate(Activity.java:6237)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)
at android.app.ActivityThread.-wrap11(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
Caused by: java.lang.IllegalStateException: ScrollView can host only one direct child
at android.widget.ScrollView.addView(ScrollView.java:269)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:839)
at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:798)
at android.view.LayoutInflater.inflate(LayoutInflater.java:515)
at android.view.LayoutInflater.inflate(LayoutInflater.java:423)
at android.view.LayoutInflater.inflate(LayoutInflater.java:374)
at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:280)
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:140)
at com.example.luke.goweb.MainActivity.onCreate(MainActivity.java:38)
at android.app.Activity.performCreate(Activity.java:6237)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)
at android.app.ActivityThread.-wrap11(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
它说 scrollview只能托管一个直接孩子。它在framelayout中工作正常，但我无法看到所有图像，也无法滚动。 不幸的是，在scrollview中停止了。 但我想在同一活动页面上使用gridview和汉堡包菜单。 这是activity.xml代码：
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<GridView
android:id="@+id/gridview"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:verticalSpacing="2dp"
android:horizontalSpacing="2dp"
android:stretchMode="columnWidth"
android:numColumns="2"/>
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/drawerLayout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<!-- The main content view -->
<RelativeLayout
android:id="@+id/mainContent"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<!-- The navigation drawer -->
<RelativeLayout
android:layout_width="280dp"
android:layout_height="match_parent"
android:id="@+id/drawerPane"
android:layout_gravity="start">
<!-- Profile Box -->
<RelativeLayout
android:id="@+id/profileBox"
android:layout_width="match_parent"
android:layout_height="100dp"
android:background="@color/material_blue_grey_800"
android:padding="8dp" >
<ImageView
android:id="@+id/avatar"
android:layout_width="50dp"
android:layout_height="50dp"
android:src="@drawable/ic_account_circle_black_24dp"
android:layout_marginTop="15dp" />
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="42dp"
android:layout_centerVertical="true"
android:layout_marginLeft="15dp"
android:layout_toRightOf="@+id/avatar"
android:orientation="vertical" >
<TextView
android:id="@+id/userName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Username"
android:textColor="#fff"
android:textSize="16sp"
android:textStyle="bold" />
<TextView
android:id="@+id/desc"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:layout_marginTop="4dp"
android:text="View Profile"
android:textColor="#fff"
android:textSize="12sp" />
</LinearLayout>
</RelativeLayout>
<!-- List of Actions (pages) -->
<ListView
android:id="@+id/navList"
android:layout_width="280dp"
android:layout_height="match_parent"
android:layout_below="@+id/profileBox"
android:choiceMode="singleChoice"
android:background="#ffffffff" />
</RelativeLayout>
</android.support.v4.widget.DrawerLayout>
</FrameLayout>
有任何帮助吗？还是有什么建议？提前谢谢。
答案 0 :(得分：2)
编辑2：我刚刚注意到你在FrameLayout内部的方法中包含了DrawerLayout。在ScrollView内部，它可以确保导致崩溃。如果将它移到ScrollView之外，你的问题就会消失。
答案 1 :(得分：2)
正如您所提到的，您可以在网格视图中查看和滚动所有图像。但是在实施汉堡包菜单或导航抽屉后，卷轴无法正常工作。 我要说的是，不要混淆导航抽屉和网格布局的布局代码，你最好将这两个文件分开，并在需要时调用它。 这是实现导航抽屉的完整代码。希望这对你有所帮助。 首先创建一个xml文件并添加以下代码：
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<!-- The main content view -->
<FrameLayout
android:id="@+id/content_frame"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<!-- The navigation drawer -->
<ListView android:id="@+id/left_drawer"
android:layout_width="240dp"
android:layout_height="match_parent"
android:layout_gravity="start"
android:choiceMode="singleChoice"
android:divider="@android:color/transparent"
android:dividerHeight="0dp"
android:background="#111"/>
</android.support.v4.widget.DrawerLayout>
稍后创建一个DrawerItemClickListener类并添加以下代码：
private class DrawerItemClickListener implements ListView.OnItemClickListener {
@Override
public void onItemClick(AdapterView parent, View view, int position, long id) {
selectItem(position);
}
}
/** Swaps fragments in the main content view */
private void selectItem(int position) {
// Create a new fragment and specify the planet to show based on position
Fragment fragment = new PlanetFragment();
Bundle args = new Bundle();
args.putInt(PlanetFragment.ARG_PLANET_NUMBER, position);
fragment.setArguments(args);
// Insert the fragment by replacing any existing fragment
FragmentManager fragmentManager = getFragmentManager();
fragmentManager.beginTransaction()
.replace(R.id.content_frame, fragment)
.commit();
// Highlight the selected item, update the title, and close the drawer
mDrawerList.setItemChecked(position, true);
setTitle(mPlanetTitles[position]);
mDrawerLayout.closeDrawer(mDrawerList);
}
@Override
public void setTitle(CharSequence title) {
mTitle = title;
getActionBar().setTitle(mTitle);
}
现在是时候在MainActivity源文件中写一些东西了
public class MainActivity extends Activity {
private DrawerLayout mDrawerLayout;
private ActionBarDrawerToggle mDrawerToggle;
private CharSequence mDrawerTitle;
private CharSequence mTitle;
...
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
...
mTitle = mDrawerTitle = getTitle();
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout,
R.drawable.ic_drawer, R.string.drawer_open, R.string.drawer_close) {
/** Called when a drawer has settled in a completely closed state. */
public void onDrawerClosed(View view) {
super.onDrawerClosed(view);
getActionBar().setTitle(mTitle);
invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu()
}
/** Called when a drawer has settled in a completely open state. */
public void onDrawerOpened(View drawerView) {
super.onDrawerOpened(drawerView);
getActionBar().setTitle(mDrawerTitle);
invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu()
}
};
// Set the drawer toggle as the DrawerListener
mDrawerLayout.setDrawerListener(mDrawerToggle);
}
/* Called whenever we call invalidateOptionsMenu() */
@Override
public boolean onPrepareOptionsMenu(Menu menu) {
// If the nav drawer is open, hide action items related to the content view
boolean drawerOpen = mDrawerLayout.isDrawerOpen(mDrawerList);
menu.findItem(R.id.action_websearch).setVisible(!drawerOpen);
return super.onPrepareOptionsMenu(menu);
}
}
在此之后，您将能够查看完整的网格布局以及导航抽屉。从左向右滑动屏幕，您将看到导航抽屉。要使用应用程序图标添加操作，您可以通过 @Shobhik 浏览链接。 您也可以按照 @ cricket_007 的建议，使用GridLayout进行RecyclerView。 请遵循以下任何建议，否则此代码将完成您的工作!!
答案 2 :(得分：1)
FrameLayout可以包含很多孩子，但ScrollView不能。如果您仍想使用ScrollView添加LinearLayout或其他内容作为其他孩子的父母。