Question

我已经跟随Google docs创建了一个导航抽屉，并且跟随了它在onCreate方法中调用selectItem的结构，带有一个默认项，只是用一些东西启动片段：

if (savedInstanceState == null) {
        selectItem(99); //default map to start with
    }

哪个电话：

    private void selectItem(int position) {
        MyMapFragmentActivity fragMap = new MyMapFragmentActivity();

        Bundle args = new Bundle();
        args.putInt(MyMapFragmentActivity.ARG_MENU_ITEM, position);
        fragMap.setArguments(args);

        FragmentManager fragMgr = getFragmentManager();
        fragMgr.beginTransaction().replace(R.id.content_frame, fragMap).commit();
    }

因此，在第一次启动应用程序时，这很好用，片段打开。导航抽屉也可以工作，当我单击菜单时，它会打开抽屉，其中包含要选择的菜单项列表。

然而，当我点击一个项目时，这就是它的中断点：

    private class DrawerItemClickListener implements ListView.OnItemClickListener {

    @Override
    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
        Toast.makeText(MainActivity.this, "Menu clicked " + position , Toast.LENGTH_LONG).show();

        selectItem(position);

        mDrawerLayout.closeDrawer(mMenuList);
    }
}

我遇到InflateException导致致命的崩溃：当我点击一个项目时，立即错误地膨胀类片段。

因此，函数selectItem第一次工作，但是从MainActivity的onCreate（）调用它，但是在onItemClick方法中调用它并且它失败并出现该错误 - 即，当我注释掉selectItem（position）时从onItemClick方法来看，没有崩溃。

更奇怪的是，当我在DrawerItemClickListener的onItemClick内的selectItem（位置）行设置断点时，它实际上似乎有效，但我无法找到实际失败的地方，因为它打开了所有

。崩溃之前我不理解的各种内置类/功能。

fragment_map.xml：

<?xml version="1.0" encoding="utf-8"?>
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/map"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:name="com.google.android.gms.maps.SupportMapFragment" />

请求的异常堆栈：

 E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: com.example.this.empire, PID: 26454
android.view.InflateException: Binary XML file line #2: Error inflating class fragment
        at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:719)
        at android.view.LayoutInflater.inflate(LayoutInflater.java:470)
        at android.view.LayoutInflater.inflate(LayoutInflater.java:398)
        at com.example.this.empire.MyMapFragmentActivity.onCreateView(MyMapFragmentActivity.java:66)
        at android.app.Fragment.performCreateView(Fragment.java:1700)
        at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:890)
        at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:1062)
        at android.app.BackStackRecord.run(BackStackRecord.java:684)
        at android.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1453)
        at android.app.FragmentManagerImpl$1.run(FragmentManager.java:443)
        at android.os.Handler.handleCallback(Handler.java:733)
        at android.os.Handler.dispatchMessage(Handler.java:95)
        at android.os.Looper.loop(Looper.java:136)
        at android.app.ActivityThread.main(ActivityThread.java:5586)
        at java.lang.reflect.Method.invokeNative(Native Method)
        at java.lang.reflect.Method.invoke(Method.java:515)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1268)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1084)
        at dalvik.system.NativeStart.main(Native Method)
        Caused by: java.lang.IllegalArgumentException: Binary XML file line #2: Duplicate id      0x7f0a0059, tag null, or parent id 0x0 with another fragment for   com.google.android.gms.maps.SupportMapFragment
        at android.support.v4.app.FragmentManagerImpl.onCreateView(FragmentManager.java:2164)
        at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:297)
        at android.support.v7.app.ActionBarActivity.onCreateView(ActionBarActivity.java:547)
        at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:691)
                at android.view.LayoutInflater.inflate(LayoutInflater.java:470)
                at android.view.LayoutInflater.inflate(LayoutInflater.java:398)
                at com.example.this.empire.MyMapFragmentActivity.onCreateView(MyMapFragmentActivity.java:66)
            at android.app.Fragment.performCreateView(Fragment.java:1700)
            at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:890)
            at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:1062)
            at android.app.BackStackRecord.run(BackStackRecord.java:684)
            at android.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1453)
            at android.app.FragmentManagerImpl$1.run(FragmentManager.java:443)
            at android.os.Handler.handleCallback(Handler.java:733)
            at android.os.Handler.dispatchMessage(Handler.java:95)
            at android.os.Looper.loop(Looper.java:136)
            at android.app.ActivityThread.main(ActivityThread.java:5586)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:515)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1268)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1084)
            at dalvik.system.NativeStart.main(Native Method)

单击导航抽屉项目时出现InflateException

0 个答案: