Question

现在我正在尝试将数据从一个片段传递到另一个片段方法。

例如，

片段一个

 listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
 @Override
 public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
 //DB Connection
 ...
 ...
values_description = stringArrayList_description.toArray(new String[stringArrayList_description.size()]);
 Fragmenttwo frag_two = new Fragmenttwo();
Bundle args = new Bundle();
args.putString("data","data12344");
frag_two.setArguments(args);
getFragmentManager().beginTransaction().add(R.id.text_view,frag_two);
//Toast.makeText(getActivity(),"position"+parent.getItemAtPosition(position),Toa    st.LENGTH_SHORT).show();
}
});

第二片段

  public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.fragment_listview_two, container, false);
    textView = (TextView)view.findViewById(R.id.text_view);
    Bundle bundle = this.getArguments();
    value = bundle.getString("data","nulll");
    setData(value);
    return view;
}

public void setData(String data){
    textView.setText(data);
}

但我无法从第二个碎片接收数据，它会抛出错误，

04-07 11:24:03.887 2937-2937/com.ats.test E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.ats.test, PID: 2937                      
android.view.InflateException: Binary XML file line #13: Error inflating class fragment
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:719)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:761)
at android.view.LayoutInflater.inflate(LayoutInflater.java:498)
at android.view.LayoutInflater.inflate(LayoutInflater.java:398)
at fragments.Callhistory_Fragment.onCreateView(Callhistory_Fragment.java:35)
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$1.run(FragmentManager.java:443)
at android.os.Handler.handleCallback(Handler.java:733)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:146)
at android.app.ActivityThread.main(ActivityThread.java:5511)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1283)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1099)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.NullPointerException
at fragments.Fragmenttwo.onCreateView(Fragmenttwo.java:27)
at android.app.Fragment.performCreateView(Fragment.java:1700)
at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:866)
at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:1040)
at android.app.FragmentManagerImpl.addFragment(FragmentManager.java:1142)
at android.app.Activity.onCreateView(Activity.java:4877)
at android.support.v4.app.BaseFragmentActivityHoneycomb.onCreateView(BaseFragmentActivityHoneycomb.java:34)
at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:80)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:695)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:761) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:498) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:398) 
at fragments.Callhistory_Fragment.onCreateView(Callhistory_Fragment.java:35) 
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$1.run(FragmentManager.java:443) 
at android.os.Handler.handleCallback(Handler.java:733) 
at android.os.Handler.dispatchMessage(Handler.java:95) 
at android.os.Looper.loop(Looper.java:146) 
at android.app.ActivityThread.main(ActivityThread.java:5511) 
at java.lang.reflect.Method.invokeNative(Native Method) 
at java.lang.reflect.Method.invoke(Method.java:515) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1283)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1099) 
at dalvik.system.NativeStart.main(Native Method)

片段处理另一个片段（fragmentone和fragmenttwo）

 <fragment
    android:layout_width="206dp"
    android:layout_height="match_parent"
    android:id="@+id/fragment1"
    android:layout_weight="1"
    android:name="fragments.Fragmentone"
    android:layout_gravity="left|center_vertical"></fragment>

 <fragment
    android:layout_width="164dp"
    android:layout_height="match_parent"
    android:id="@+id/fragment2"
    android:layout_weight="1"
    android:name="fragments.Fragmenttwo"
    android:layout_gravity="right|center_vertical"
    ></fragment>

   </FrameLayout>

R.Layout.fragment_listview_two.xml

 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#f467f7">
 <TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/text_view"
android:text="description \n here"
android:textColor="#000000"
android:textAppearance="?android:textAppearanceLarge"/>

</LinearLayout>

请指导我，我不知道我错在哪里。

Answer 1

试一试!!!!

在

添加bundle！= null

height: auto !important

Answer 2

试试这个..

在你的FromFragment：

Fragment fragment = new Fragment(); // replace your custom fragment class 
Bundle bundle = new Bundle();
FragmentTransaction fragmentTransaction = getSupportFragmentManager().beginTransaction();
bundle.putString("key","value"); // use as per your need
fragment.setArguments(bundle);
fragmentTransaction.addToBackStack(null);
fragmentTransaction.replace(viewID,fragment);
fragmentTransaction.commit();

在自定义片段类

中

Bundle mBundle = new Bundle();
mBundle = getArguments();
mBundle.getString(key);

// key必须与第一个片段中给出的相同

Answer 3

你需要像这样提交你的片段：

      getFragmentManager().beginTransaction().add(R.id.text_view,frag_two).commit();

Answer 4

您可以将任何数据简单地传递给第二个片段的构造函数。

String text = "test";


SecondFragment fragment = new SecondFragment(text);
        FragmentManager fragmentManager = getActivity().getSupportFragmentManager();
        FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
        fragmentTransaction.replace(R.id.content_frame, fragment);
        fragmentTransaction.addToBackStack(null);
        fragmentTransaction.commit();

然后在SecondFragment

String receivingText;


public SecondFragment(String text){
      this.receivingText = text;
}

将数据从一个碎片传递到另一个碎片功能

4 个答案: