我创建了一个滑动菜单，但日志向我显示了消息：
08-13 18:19:08.064: E/AndroidRuntime(755): FATAL EXCEPTION: main
08-13 18:19:08.064: E/AndroidRuntime(755): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.testeslidingmenuagvdnc/com.example.testeslidingmenuagvdnc.MainActivity}: android.view.InflateException: Binary XML file line #2: Error inflating class fragment
08-13 18:19:08.064: E/AndroidRuntime(755): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1736)
08-13 18:19:08.064: E/AndroidRuntime(755): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1752)
08-13 18:19:08.064: E/AndroidRuntime(755): at android.app.ActivityThread.access$1500(ActivityThread.java:123)
08-13 18:19:08.064: E/AndroidRuntime(755): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:993)
08-13 18:19:08.064: E/AndroidRuntime(755): at android.os.Handler.dispatchMessage(Handler.java:99)
08-13 18:19:08.064: E/AndroidRuntime(755): at android.os.Looper.loop(Looper.java:126)
08-13 18:19:08.064: E/AndroidRuntime(755): at android.app.ActivityThread.main(ActivityThread.java:3997)
08-13 18:19:08.064: E/AndroidRuntime(755): at java.lang.reflect.Method.invokeNative(Native Method)
08-13 18:19:08.064: E/AndroidRuntime(755): at java.lang.reflect.Method.invoke(Method.java:491)
08-13 18:19:08.064: E/AndroidRuntime(755): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:841)
08-13 18:19:08.064: E/AndroidRuntime(755): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:599)
08-13 18:19:08.064: E/AndroidRuntime(755): at dalvik.system.NativeStart.main(Native Method)
08-13 18:19:08.064: E/AndroidRuntime(755): Caused by: android.view.InflateException: Binary XML file line #2: Error inflating class fragment
08-13 18:19:08.064: E/AndroidRuntime(755): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:688)
08-13 18:19:08.064: E/AndroidRuntime(755): at android.view.LayoutInflater.inflate(LayoutInflater.java:457)
08-13 18:19:08.064: E/AndroidRuntime(755): at android.view.LayoutInflater.inflate(LayoutInflater.java:391)
08-13 18:19:08.064: E/AndroidRuntime(755): at android.view.LayoutInflater.inflate(LayoutInflater.java:347)
08-13 18:19:08.064: E/AndroidRuntime(755): at com.jeremyfeinstein.slidingmenu.lib.SlidingMenu.setMenu(SlidingMenu.java:375)
08-13 18:19:08.064: E/AndroidRuntime(755): at com.example.testeslidingmenuagvdnc.MainActivity.onCreate(MainActivity.java:28)
08-13 18:19:08.064: E/AndroidRuntime(755): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1048)
08-13 18:19:08.064: E/AndroidRuntime(755): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1700)
08-13 18:19:08.064: E/AndroidRuntime(755): ... 11 more
08-13 18:19:08.064: E/AndroidRuntime(755): Caused by: java.lang.ClassCastException: com.example.testeslidingmenuagvdnc.SlidingMenuFragment cannot be cast to android.app.Fragment
08-13 18:19:08.064: E/AndroidRuntime(755): at android.app.Fragment.instantiate(Fragment.java:493)
08-13 18:19:08.064: E/AndroidRuntime(755): at android.app.Fragment.instantiate(Fragment.java:468)
08-13 18:19:08.064: E/AndroidRuntime(755): at android.app.Activity.onCreateView(Activity.java:4081)
08-13 18:19:08.064: E/AndroidRuntime(755): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:664)
08-13 18:19:08.064: E/AndroidRuntime(755): ... 18 more
滑动菜单
public class SlidingMenuFragment extends Fragment implements ExpandableListView.OnChildClickListener {
private ExpandableListView sectionListView;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
List<Section> sectionList = createMenu();
View view = inflater.inflate(R.layout.slidingmenu_fragment, container, false);
this.sectionListView = (ExpandableListView) view.findViewById(R.id.slidingmenu_view);
this.sectionListView.setGroupIndicator(null);
SectionListAdapter sectionListAdapter = new SectionListAdapter(this.getActivity(), sectionList);
this.sectionListView.setAdapter(sectionListAdapter);
this.sectionListView.setOnGroupClickListener(new ExpandableListView.OnGroupClickListener() {
@Override
public boolean onGroupClick(ExpandableListView parent, View v, int groupPosition, long id) {
return true;
}
});
this.sectionListView.setOnChildClickListener(this);
int count = sectionListAdapter.getGroupCount();
for (int position = 0; position < count; position++) {
this.sectionListView.expandGroup(position);
}
return view;
}
private List<Section> createMenu() {
List<Section> sectionList = new ArrayList<Section>();
Section oDemoSection = new Section("Demos");
oDemoSection.addSectionItem(101,"List/Detail (Fragment)", "slidingmenu_friends");
oDemoSection.addSectionItem(102, "Airport (AsyncTask)", "slidingmenu_airport");
Section oGeneralSection = new Section("General");
oGeneralSection.addSectionItem(201, "Settings", "slidingmenu_settings");
oGeneralSection.addSectionItem(202, "Rate this app", "slidingmenu_rating");
oGeneralSection.addSectionItem(203, "Eula", "slidingmenu_eula");
oGeneralSection.addSectionItem(204, "Quit", "slidingmenu_quit");
sectionList.add(oDemoSection);
sectionList.add(oGeneralSection);
return sectionList;
}
@Override
public boolean onChildClick(ExpandableListView parent, View v,
int groupPosition, int childPosition, long id) {
switch ((int)id) {
case 101:
//TODO
break;
case 102:
//TODO
break;
case 201:
//TODO
break;
case 202:
//TODO
break;
case 203:
//TODO
break;
case 204:
//TODO
break;
}
return false;
}
}
我的活动：
公共类 MainActivity 扩展 Activity { 私有 SlidingMenu 滑动菜单；
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
slidingMenu = new SlidingMenu(this);
slidingMenu.setMode(SlidingMenu.LEFT);
slidingMenu.setTouchModeAbove(SlidingMenu.TOUCHMODE_FULLSCREEN);
slidingMenu.setShadowWidthRes(R.dimen.slidingmenu_shadow_width);
slidingMenu.setShadowDrawable(R.drawable.slidingmenu_shadow);
slidingMenu.setBehindOffsetRes(R.dimen.slidingmenu_offset);
slidingMenu.setFadeDegree(0.35f);
slidingMenu.attachToActivity(this, SlidingMenu.SLIDING_CONTENT);
slidingMenu.setMenu(R.layout.slidingmenu);
getActionBar().setDisplayHomeAsUpEnabled(true);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
public void onBackPressed() {
if ( slidingMenu.isMenuShowing()) {
slidingMenu.toggle();
}
else {
super.onBackPressed();
}
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if ( keyCode == KeyEvent.KEYCODE_MENU ) {
this.slidingMenu.toggle();
return true;
}
return super.onKeyDown(keyCode, event);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
this.slidingMenu.toggle();
return true;
default:
return super.onOptionsItemSelected(item);
}
}
}
活动的 XML：
<RelativeLayout 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:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/hello_world" />
</RelativeLayout>
XML 滑块菜单：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="@color/purple_dark" >
<ExpandableListView android:id="@+id/slidingmenu_view"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:transcriptMode="alwaysScroll"/>
</LinearLayout>
ListView 的 XML 项：
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="@drawable/slidingmenu_list_selector_background">
<ImageView
android:id="@+id/slidingmenu_sectionitem_icon"
android:layout_width="wrap_content"
android:layout_height="30dp"
android:layout_centerVertical="true"
android:paddingLeft="15dp"/>
<TextView
android:id="@+id/slidingmenu_sectionitem_label"
android:layout_width="match_parent"
android:layout_height="50dp"
android:layout_toRightOf="@id/slidingmenu_sectionitem_icon"
android:gravity="center_vertical"
android:text="TextView"
android:textColor="#FFFFFF"/>
</RelativeLayout>