更改屏幕片段后发生崩溃

Question

我想用捆绑包发送数据并在另一个片段中检索它们。

我的问题是，当我改变屏幕的方向Fragment Receive时，应用程序崩溃。

以下是一段我的代码：

片段接收：

@Override 
public View onCreateView(LayoutInflater inflater, ViewGroup container, 
         Bundle savedInstanceState) { 

    View view = inflater.inflate(R.layout.fragment_actuality, container, false); 

    ImageLoader imageLoader = AppController.getInstance().getImageLoader(); 

    ImageView networkImageView = (ImageView)view.findViewById(R.id.thumbnail); 

    Bundle bundle = getArguments(); 

    textcontent = (TextView)view.findViewById(R.id.content); 
    texttitle = (TextView)view.findViewById(R.id.title); 
    textdate = (TextView)view.findViewById(R.id.date); 
    textweb = (TextView)view.findViewById(R.id.web); 



    textcontent.setText(Html.fromHtml(bundle.getString("article"))); 
    textdate.setText("le " + bundle.getString("date")); 
    texttitle.setText(bundle.getString("title")); 
    textweb.setText("Pour plus d'information : " + bundle.getString("urlweb")); } 

Answer 1

此行添加到您的活动清单：

android:configChanges="keyboardHidden|orientation|screenSize" 

Answer 2

在转动，你的片段重新创建，onCreateView()将会再次调用和getArguments将为空。因此，您需要将数据保存在onSaveInstanceState()和onCreateView()中，如果savedInstanceState为空，则会添加数据，否则将从getArgument()获取数据，否则您将从savedInstanceState获取数据。

Answer 3

您应经常检查空以集束

@Override 
public View onCreateView(LayoutInflater inflater, ViewGroup container, 
         Bundle savedInstanceState) { 

    View view = inflater.inflate(R.layout.fragment_actuality, container, false); 
    ImageLoader imageLoader = AppController.getInstance().getImageLoader(); 
    ImageView networkImageView = (ImageView)view.findViewById(R.id.thumbnail); 

     textcontent = (TextView)view.findViewById(R.id.content); 
     texttitle = (TextView)view.findViewById(R.id.title); 
     textdate = (TextView)view.findViewById(R.id.date); 
     textweb = (TextView)view.findViewById(R.id.web); 


     if(savedInstanceState!=null){ 
     textcontent.setText(Html.fromHtml(bundle.getString("article"))); 
     textdate.setText("le " + bundle.getString("date")); 
     texttitle.setText(savedInstanceState.getString("title")); 
     textweb.setText("Pour plus d'information : "savedInstanceState.getString("urlweb")); 
}