我正在尝试在布局中使用片段。我的Android应用程序的目标是4.0.0及更高版本，因此我不使用v4支持库，而是使用内置的Fragment库。
我尝试了以下代码，但应用程序崩溃了。
这是主要活动：
package com.m3ph1st0s.vantium;
import android.os.Bundle;
import android.view.Window;
import android.app.Activity;
import android.app.Fragment;
import android.app.FragmentManager;
import android.app.FragmentTransaction;
public class AdminHomeActivity_wf extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
this.requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.admin_home_wf);
Fragment fragment = new AH_MainFragment();
FragmentManager fm = getFragmentManager();
FragmentTransaction transaction = fm.beginTransaction();
transaction.replace(R.id.frame, fragment);
transaction.commit();
}
}
布局：
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/general_bg" >
<ImageView
android:id="@+id/imageView1"
android:layout_width="40dp"
android:layout_height="180dp"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:contentDescription="@+string/desc"
android:scaleType="fitXY"
android:src="@drawable/a_home_side" />
<FrameLayout
android:id="@+id/frame"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_alignBottom="@+id/imageView1"
android:layout_alignParentRight="true"
android:layout_alignTop="@+id/imageView1"
android:layout_toRightOf="@+id/imageView1" >
</FrameLayout>
片段类：
package com.m3ph1st0s.vantium;
import android.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
public class AH_MainFragment extends Fragment {
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
return inflater.inflate(R.layout.ahfrag_main, container, false);
}
}
片段布局：
<?xml version="1.0" encoding="utf-8"?>
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/ahfrag_main_id"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<LinearLayout
android:id="@+id/IconUser"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="@+id/IconApps"
android:layout_marginRight="71dp"
android:layout_toLeftOf="@+id/IconApps"
android:background="@drawable/contour"
android:gravity="center"
android:orientation="vertical" >
<ImageView
android:id="@+id/imageView2"
android:layout_width="50dp"
android:layout_height="50dp"
android:contentDescription="@+string/desc"
android:src="@drawable/a_home_user" />
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/a_home_user"
android:textAppearance="?android:attr/textAppearanceSmall"
android:textSize="10sp" />
</LinearLayout>
<LinearLayout
android:id="@+id/IconIntAcc"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottom="@+id/IconApps"
android:layout_alignLeft="@+id/IconUser"
android:background="@drawable/contour"
android:gravity="center"
android:orientation="vertical" >
<ImageView
android:id="@+id/imageView21"
android:layout_width="50dp"
android:layout_height="50dp"
android:contentDescription="@+string/desc"
android:src="@drawable/a_home_intacc" />
<TextView
android:id="@+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center"
android:text="@string/a_home_intacc"
android:textAppearance="?android:attr/textAppearanceSmall"
android:textSize="10sp" />
</LinearLayout>
<LinearLayout
android:id="@+id/IconApps"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="@+id/IconUser"
android:layout_centerHorizontal="true"
android:background="@drawable/contour"
android:gravity="center"
android:orientation="vertical" >
<ImageView
android:id="@+id/imageView12"
android:layout_width="50dp"
android:layout_height="50dp"
android:contentDescription="@+string/desc"
android:src="@drawable/a_home_appmng" />
<TextView
android:id="@+id/textView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center"
android:text="@string/a_home_appmng"
android:textAppearance="?android:attr/textAppearanceSmall"
android:textSize="10sp" />
</LinearLayout>
<LinearLayout
android:id="@+id/IconAppWeb"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/IconApps"
android:layout_alignTop="@+id/IconIntAcc"
android:background="@drawable/contour"
android:gravity="center"
android:orientation="vertical" >
<ImageView
android:id="@+id/imageView5"
android:layout_width="50dp"
android:layout_height="50dp"
android:contentDescription="@+string/desc"
android:src="@drawable/a_home_applis" />
<TextView
android:id="@+id/textView4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center"
android:text="@string/a_home_applis"
android:textAppearance="?android:attr/textAppearanceSmall"
android:textSize="10sp" />
</LinearLayout>
<LinearLayout
android:id="@+id/IconTime"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="@+id/IconApps"
android:layout_marginLeft="71dp"
android:layout_toRightOf="@+id/IconApps"
android:background="@drawable/contour"
android:gravity="center"
android:orientation="vertical" >
<ImageView
android:id="@+id/imageView8"
android:layout_width="50dp"
android:layout_height="50dp"
android:contentDescription="@+string/desc"
android:src="@drawable/a_home_time" />
<TextView
android:id="@+id/textView5"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center"
android:text="@string/a_home_time"
android:textAppearance="?android:attr/textAppearanceSmall"
android:textSize="10sp" />
</LinearLayout>
<LinearLayout
android:id="@+id/IconIntBrows"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/IconTime"
android:layout_alignTop="@+id/IconAppWeb"
android:background="@drawable/contour"
android:gravity="center"
android:orientation="vertical" >
<ImageView
android:id="@+id/imageView7"
android:layout_width="50dp"
android:layout_height="50dp"
android:contentDescription="@+string/desc"
android:src="@drawable/a_home_intbrset" />
<TextView
android:id="@+id/textView6"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center"
android:text="@string/a_home_intbrset"
android:textAppearance="?android:attr/textAppearanceSmall"
android:textSize="10sp" />
</LinearLayout>
</RelativeLayout>
</fragment>
我在logcat中得到错误：
06-30 14:47:01.824: D/AndroidRuntime(2526): Shutting down VM
06-30 14:47:01.824: W/dalvikvm(2526): threadid=1: thread exiting with uncaught exception (group=0x40e0b930)
06-30 14:47:01.832: E/AndroidRuntime(2526): FATAL EXCEPTION: main
06-30 14:47:01.832: E/AndroidRuntime(2526): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.m3ph1st0s.vantium/com.m3ph1st0s.vantium.AdminHomeActivity_wf}: android.view.InflateException: Binary XML file line #2: Error inflating class fragment
06-30 14:47:01.832: E/AndroidRuntime(2526): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2180)
06-30 14:47:01.832: E/AndroidRuntime(2526): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
06-30 14:47:01.832: E/AndroidRuntime(2526): at android.app.ActivityThread.access$600(ActivityThread.java:141)
06-30 14:47:01.832: E/AndroidRuntime(2526): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
06-30 14:47:01.832: E/AndroidRuntime(2526): at android.os.Handler.dispatchMessage(Handler.java:99)
06-30 14:47:01.832: E/AndroidRuntime(2526): at android.os.Looper.loop(Looper.java:137)
06-30 14:47:01.832: E/AndroidRuntime(2526): at android.app.ActivityThread.main(ActivityThread.java:5041)
06-30 14:47:01.832: E/AndroidRuntime(2526): at java.lang.reflect.Method.invokeNative(Native Method)
06-30 14:47:01.832: E/AndroidRuntime(2526): at java.lang.reflect.Method.invoke(Method.java:511)
06-30 14:47:01.832: E/AndroidRuntime(2526): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
06-30 14:47:01.832: E/AndroidRuntime(2526): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
06-30 14:47:01.832: E/AndroidRuntime(2526): at dalvik.system.NativeStart.main(Native Method)
06-30 14:47:01.832: E/AndroidRuntime(2526): Caused by: android.view.InflateException: Binary XML file line #2: Error inflating class fragment
06-30 14:47:01.832: E/AndroidRuntime(2526): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:704)
06-30 14:47:01.832: E/AndroidRuntime(2526): at android.view.LayoutInflater.inflate(LayoutInflater.java:466)
06-30 14:47:01.832: E/AndroidRuntime(2526): at android.view.LayoutInflater.inflate(LayoutInflater.java:396)
06-30 14:47:01.832: E/AndroidRuntime(2526): at com.m3ph1st0s.vantium.AH_MainFragment.onCreateView(AH_MainFragment.java:14)
06-30 14:47:01.832: E/AndroidRuntime(2526): at android.app.Fragment.performCreateView(Fragment.java:1695)
06-30 14:47:01.832: E/AndroidRuntime(2526): at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:885)
06-30 14:47:01.832: E/AndroidRuntime(2526): at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:1035)
06-30 14:47:01.832: E/AndroidRuntime(2526): at android.app.Activity.onCreateView(Activity.java:4736)
06-30 14:47:01.832: E/AndroidRuntime(2526): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:680)
06-30 14:47:01.832: E/AndroidRuntime(2526): at android.view.LayoutInflater.inflate(LayoutInflater.java:466)
06-30 14:47:01.832: E/AndroidRuntime(2526): at android.view.LayoutInflater.inflate(LayoutInflater.java:396)
06-30 14:47:01.832: E/AndroidRuntime(2526): at com.m3ph1st0s.vantium.AH_MainFragment.onCreateView(AH_MainFragment.java:14)
06-30 14:47:01.832: E/AndroidRuntime(2526): at android.app.Fragment.performCreateView(Fragment.java:1695)
06-30 14:47:01.832: E/AndroidRuntime(2526): at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:885)
06-30 14:47:01.832: E/AndroidRuntime(2526): at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:1057)
06-30 14:47:01.832: E/AndroidRuntime(2526): at android.app.BackStackRecord.run(BackStackRecord.java:682)
06-30 14:47:01.832: E/AndroidRuntime(2526): at android.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1435)
06-30 14:47:01.832: E/AndroidRuntime(2526): at android.app.Activity.performStart(Activity.java:5113)
06-30 14:47:01.832: E/AndroidRuntime(2526): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2153)
06-30 14:47:01.832: E/AndroidRuntime(2526): ... 11 more
06-30 14:47:01.832: E/AndroidRuntime(2526): Caused by: java.lang.IllegalArgumentException: Binary XML file line #2: Duplicate id 0x7f070023, tag null, or parent id 0x7f070013 with another fragment for null
06-30 14:47:01.832: E/AndroidRuntime(2526): at android.app.Activity.onCreateView(Activity.java:4722)
06-30 14:47:01.832: E/AndroidRuntime(2526): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:680)
06-30 14:47:01.832: E/AndroidRuntime(2526): ... 29 more
06-30 14:47:03.629: I/Process(2526): Sending signal. PID: 2526 SIG: 9
我不明白是什么问题。 有人可以帮忙吗？
答案 0 :(得分：1)
我找到了一个解决方案，虽然我不确定我理解它的工作原理：
我只是在片段的XML文件中用fragment标记替换了RelativeLayout标记。 LinearLayout也应该有用。
显然，识别fragment类是个问题。
答案 1 :(得分：0)
原因是，如果您使用FragmentManager替换/添加片段，则需要使用FrameLayout作为占位符。如果您使用片段，则无法替换/添加，这就是您崩溃的原因。