我正在使用片段，当我更改方向时应用程序崩溃。这是日志猫：
05-29 05:56:52.158: E/AndroidRuntime(1428): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.bajraregistertesteclipse/com.example.bajraregistertesteclipse.MainActivity}: android.view.InflateException: Binary XML file line #16: Error inflating class fragment
05-29 05:56:52.158: E/AndroidRuntime(1428): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
05-29 05:56:52.158: E/AndroidRuntime(1428): at android.app.ActivityThread.handleRelaunchActivity(ActivityThread.java:3692)
05-29 05:56:52.158: E/AndroidRuntime(1428): at android.app.ActivityThread.access$700(ActivityThread.java:141)
05-29 05:56:52.158: E/AndroidRuntime(1428): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1240)
05-29 05:56:52.158: E/AndroidRuntime(1428): at android.os.Handler.dispatchMessage(Handler.java:99)
05-29 05:56:52.158: E/AndroidRuntime(1428): at android.os.Looper.loop(Looper.java:137)
05-29 05:56:52.158: E/AndroidRuntime(1428): at android.app.ActivityThread.main(ActivityThread.java:5039)
05-29 05:56:52.158: E/AndroidRuntime(1428): at java.lang.reflect.Method.invokeNative(Native Method)
05-29 05:56:52.158: E/AndroidRuntime(1428): at java.lang.reflect.Method.invoke(Method.java:511)
05-29 05:56:52.158: E/AndroidRuntime(1428): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
05-29 05:56:52.158: E/AndroidRuntime(1428): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
05-29 06:17:02.864: E/AndroidRuntime(1554): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.bajraregistertesteclipse/com.example.bajraregistertesteclipse.MainActivity}: android.view.InflateException: Binary XML file line #16: Error inflating class fragment
05-29 06:17:02.864: E/AndroidRuntime(1554): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2180)
05-29 05:56:52.158: E/AndroidRuntime(1428): Caused by: java.lang.IllegalStateException: Fragment com.example.bajraregistertesteclipse.SecondFragment did not create a view.
这是我的 First_Test_Fragment 类
package com.example.bajraregistertesteclipse;
import android.app.Fragment;
import android.app.FragmentTransaction;
import android.content.res.Configuration;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.Toast;
public class First_Test_Fragment extends Fragment {
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// TODO Auto-generated method stub
View view=inflater.inflate(R.layout.first_test_fragment,container,false);
Button btnLogin=(Button)view.findViewById(R.id.btnLogin);
btnLogin.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
FirstFragment firstFragment=new FirstFragment();
FragmentTransaction fragmentTransaction = getFragmentManager().beginTransaction();
fragmentTransaction.replace(R.id.detailFragment, firstFragment);
fragmentTransaction.addToBackStack(null);
fragmentTransaction.commit();
}
});
Button btnSignUp=(Button)view.findViewById(R.id.btnSignUp);
btnSignUp.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
SignUp signup=new SignUp();
FragmentTransaction fragmentTransaction = getFragmentManager().beginTransaction();
fragmentTransaction.replace(R.id.detailFragment, signup);
fragmentTransaction.addToBackStack(null);
fragmentTransaction.commit();
}
});
return view;
}
}
}
这是我的 FirstFragment 类
package com.example.bajraregistertesteclipse;
import android.app.Fragment;
import android.content.Intent;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
public class FirstFragment extends Fragment {
LoginDataBaseAdapter loginDataBaseAdapter;
EditText loginTestUser,loginTestPassword;
String userName,password,confirmpassword;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// TODO Auto-generated method stub
View view = inflater.inflate(R.layout.firstfragment, container, false);
loginTestUser=(EditText)view.findViewById(R.id.editTextUserNameToLogin);
loginTestPassword= (EditText)view.findViewById(R.id.editTextPasswordToLogin);
Button btnLogin = (Button) view.findViewById(R.id.buttonSignIn);
btnLogin.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
// Toast.makeText(getActivity(),"BttonLoginPressed",Toast.LENGTH_SHORT).show();
// get The User name and Password
userName=loginTestUser.getText().toString();
password=loginTestPassword.getText().toString();
// fetch the Password form database for respective user name
String storedPassword=loginDataBaseAdapter.getSinlgeEntry(userName);
// check if the Stored password matches with Password entered by user
if(password.equals(storedPassword))
{
Toast.makeText(getActivity(), "Congrats: Login Successfull", Toast.LENGTH_LONG).show();
// Intent intent = new Intent(getActivity(), Admin_Page.class);
// getActivity().startActivity(intent);
Intent open=new Intent("com.example.bajraregistertesteclipse.ADMIN_PAGE");
getActivity().startActivity(open);
// startActivity(open);
}
else
{
Toast.makeText(getActivity(), "User Name or Password does not match", Toast.LENGTH_LONG).show();
}
}
});
return view;
}
@Override
public void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
loginDataBaseAdapter=new LoginDataBaseAdapter(getActivity());
loginDataBaseAdapter=loginDataBaseAdapter.open();
}
}
我的 Mainfest.xml 是：
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.bajraregistertesteclipse"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="13"
android:targetSdkVersion="16" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="com.example.bajraregistertesteclipse.MAINACTIVITY" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".SignUp"></activity>
<activity android:name=".Admin_Page">
</activity>
</application>
现在我的问题是当方向改变时应用程序崩溃，当单击按钮时，应该启动新活动 Admin_Page 但应用程序崩溃。
先感谢您！！！