二進制XML文件行＃415：錯誤充氣類片段

Question

我得到吹氣錯誤在我的活動代碼
我提到這個網站，我不能得到解決

我的XML代碼：

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
xmlns:app="http://schemas.android.com/apk/res-auto" 
xmlns:tools="http://schemas.android.com/tools" 
android:layout_width="fill_parent" 
android:layout_height="fill_parent" 
android:orientation="vertical"> 
    <fragment 
    android:id="@+id/projectcommends_combine" 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content" 
    android:name="com.servicebellpartner.Fragment.ProjectComments" 
    tools:layout="@layout/project_comments"></fragment></RelativeLayout> 

我的活動代碼：

public class OrderDetails extends AppCompatActivity implements View.OnClickListener { 

protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 

    setContentView(R.layout.order_detail); 

    FragmentTransaction fragmentTransaction = getFragmentManager().beginTransaction(); 
    ProjectComments projectComments = new ProjectComments(orderid); 
    fragmentTransaction.add(R.id.projectcommends_combine, projectComments); 
    fragmentTransaction.commit(); 
}} 

我的代碼片段：

public class ProjectComments extends Fragment { 
private String orderid; 
public ProjectComments(String orderid){ 
    this.orderid = orderid; 
} 

public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
} 

@Override 
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { 
    View view = inflater.inflate(R.layout.project_comments, container, false); 
    return view; 
}} 

我得到以下錯誤在運行應用程序

java.lang.RuntimeException: Unable to start activity ComponentInfo{com.servicebellpartner/com.servicebellpartner.Activity.OrderDetails}: android.view.InflateException: Binary XML file line #415: Error inflating class fragment 

請任何人給答案和解釋。

Answer 1

您的xml缺少u'r相對佈局的結束標記。 此外片段沒有公共無參數構造函數。 所以它不能被框架實例化。