FragmentTabHost将片段从片段传递到另一片段

我想将表单分隔成2个选项卡，第二个选项卡包含一个确认底部，该底部应检查是否填写了所需的字段并将其继续提交给服务器。FragmentTabHost将片段从片段传递到另一片段

某些必填字段位于片段1（选项卡1）中，而我的按钮 onclick函数位于片段2（选项卡2）上。

如何将EditText视图组件从片段1 xml传递到片段2 java类。

或者我应该把所有的功能放在主要活动内？

主要活动

protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.create_company); 

    final FragmentTabHost tabHost = (FragmentTabHost)findViewById(android.R.id.tabhost); 
    tabHost.setup(this, getSupportFragmentManager(), R.id.realtabcontent); 
    //1 
    tabHost.addTab(tabHost.newTabSpec("Basic Information") 
        .setIndicator("Basic Information"), 
      BasicCompanyInformation.class, 
      null); 
    //2 
    tabHost.addTab(tabHost.newTabSpec("Contact") 
        .setIndicator("Contact"), 
      ContactCompany.class, 
      null); 
} 
//Fragment 1 
public class ContactCompany extends Fragment { 

Button btnSubmit; 
EditText companyName; 

@Override 
public void onAttach(Activity activity) { 
    super.onAttach(activity); 

    CreateCompanyActivity createCompanyActivity = (CreateCompanyActivity) activity; 
} 

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

    View basicCompanyView = inflater.inflate(R.layout.basic_company_information, container, 
false); 
    companyName = (EditText) basicCompanyView.findViewById(R.id.edtTxtCompName); 
    return inflater.inflate(R.layout.contact_company, container, false); 
} 

@Override 
public void onViewCreated(View view, Bundle savedInstanceState) { 
    super.onViewCreated(view, savedInstanceState); 
} 

@Override 
public void onActivityCreated(Bundle savedInstanceState) { 
    super.onActivityCreated(savedInstanceState); 
    btnSubmit = (Button) this.getView().findViewById(R.id.btnSave); 
    btnSubmit.setOnClickListener(new View.OnClickListener() { 

     @Override 
     public void onClick(View v) { 
      String companyNameValue = companyName.getText().toString(); 
      btnSubmit.setText(companyNameValue); 
     } 
    }); 
} 

} 
//Fragment 2 
public class BasicCompanyInformation extends Fragment { 

private String[] statusArray; 
private Spinner statusSpinner; 
private Button btnNext1; 
@Override 
public void onAttach(Activity activity) { 
    super.onAttach(activity); 

    CreateCompanyActivity createCompanyActivity = (CreateCompanyActivity) activity; 
} 

@Override 
public void onViewCreated(View view, Bundle savedInstanceState) { 
    super.onViewCreated(view, savedInstanceState); 
    statusArray = new String[] { 
      "Call", "Following", "Deal", "Give up" 
    }; 
} 

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

    return inflater.inflate(R.layout.basic_company_information, container, false); 
} 
@Override 
public void onActivityCreated(Bundle savedInstanceState) { 
    super.onActivityCreated(savedInstanceState); 
    statusSpinner = (Spinner)getView().findViewById(R.id.statusSpinner); 
    btnNext1 = (Button)getView().findViewById(R.id.btnNext1); 

    ArrayAdapter<String> adapter = new ArrayAdapter<>(getActivity().getApplicationContext(), 
      R.layout.drop_down, statusArray); 
    statusSpinner.setAdapter(adapter); 
    btnNext1.setOnClickListener(new View.OnClickListener() { 

     @Override 
     public void onClick(View v) { 
      TabHost tabHost = (TabHost) getActivity().findViewById(android.R.id.tabhost); 
      tabHost.setCurrentTab(1); 
     } 
    }); 
} 
}

片段1的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="#f4f4f4"> 
<ScrollView 
    xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent"> 
    <TableLayout 
     android:layout_width="match_parent" 
     android:layout_height="match_parent" 
     android:layout_gravity="center_horizontal" 
     android:background="#fff" 
     android:stretchColumns="*"> 

     <TableRow 
      android:layout_width="match_parent" 
      android:layout_height="match_parent" 
      android:background="@drawable/border"> 

      <TextView 
       android:layout_width="wrap_content" 
       android:layout_height="wrap_content" 
       android:textAppearance="?android:attr/textAppearanceMedium" 
       android:text="Name:" 
       android:id="@+id/txtCompName" 
       android:textStyle="bold" 
       android:layout_gravity="center|center_horizontal"/> 

      <EditText 
       android:layout_width="match_parent" 
       android:layout_height="wrap_content" 
       android:id="@+id/edtTxtCompName" 
       android:hint="Company Name" 
       android:background="@drawable/border" 
       android:paddingLeft="5dp" 
       android:layout_marginRight="5dp" 
       android:singleLine="true" 
       android:inputType="textNoSuggestions" 
       /> 
     </TableRow> 

     <TableRow 
      android:layout_width="match_parent" 
      android:layout_height="match_parent" 
      android:background="@drawable/border"> 

      <TextView 
       android:layout_width="wrap_content" 
       android:layout_height="wrap_content" 
       android:textAppearance="?android:attr/textAppearanceMedium" 
       android:text="Status:" 
       android:id="@+id/txtStatus" 
       android:textStyle="bold" 
       android:layout_gravity="center|center_horizontal"/> 

      <Spinner 
       android:layout_width="wrap_content" 
       android:layout_height="40dp" 
       android:id="@+id/statusSpinner" 
       android:layout_column="1" 
       android:layout_marginRight="5dp" /> 


     </TableRow> 

     <TableRow 
      android:layout_width="match_parent" 
      android:layout_height="match_parent" 
      android:background="@drawable/border"> 

      <TextView 
       android:layout_width="wrap_content" 
       android:layout_height="wrap_content" 
       android:textAppearance="?android:attr/textAppearanceMedium" 
       android:text="Reg No:" 
       android:id="@+id/txtRegNo" 
       android:textStyle="bold" 
       android:layout_gravity="center|center_horizontal"/> 

      <EditText 
       android:layout_width="match_parent" 
       android:layout_height="wrap_content" 
       android:id="@+id/edtTxtRegNo" 
       android:hint="Register No." 
       android:background="@drawable/border" 
       android:paddingLeft="5dp" 
       android:layout_marginRight="5dp" 
       android:singleLine="true" 
       android:inputType="textNoSuggestions"/> 
     </TableRow> 

     <TableRow 
      android:layout_width="match_parent" 
      android:layout_height="match_parent" 
      android:background="@drawable/border"> 

      <TextView 
       android:layout_width="wrap_content" 
       android:layout_height="wrap_content" 
       android:textAppearance="?android:attr/textAppearanceMedium" 
       android:text="Type:" 
       android:id="@+id/txtBusinessType" 
       android:textStyle="bold" 
       android:layout_gravity="center|center_horizontal"/> 

      <EditText 
       android:layout_width="match_parent" 
       android:layout_height="wrap_content" 
       android:id="@+id/edttxtBusinessType" 
       android:hint="Business Type" 
       android:background="@drawable/border" 
       android:paddingLeft="5dp" 
       android:layout_marginRight="5dp" 
       android:singleLine="true" 
       android:inputType="textNoSuggestions"/> 
     </TableRow> 

     <TableRow 
      android:layout_width="match_parent" 
      android:layout_height="match_parent" 
      android:background="@drawable/border"> 

      <TextView 
       android:layout_width="wrap_content" 
       android:layout_height="wrap_content" 
       android:textAppearance="?android:attr/textAppearanceMedium" 
       android:text="Address:" 
       android:id="@+id/txtAddress" 
       android:textStyle="bold" 
       android:layout_gravity="center|top"/> 

      <EditText 
       android:layout_width="match_parent" 
       android:layout_height="wrap_content" 
       android:inputType="textMultiLine" 
       android:gravity="top" 
       android:lines="5" 
       android:ems="10" 
       android:scrollbars="vertical" 
       android:id="@+id/edtTxtAddress" 
       android:hint="Address" 
       android:background="@drawable/border" 
       android:paddingLeft="5dp" 
       android:layout_marginRight="5dp" 
       android:maxLines="5"/> 
     </TableRow> 

     <RelativeLayout 
      android:layout_width="match_parent" 
      android:layout_height="match_parent"> 
      <Button 
       android:layout_width="match_parent" 
       android:layout_height="wrap_content" 
       android:text="Next" 
       android:id="@+id/btnNext1" 
       android:layout_marginTop="5dp"/> 

     </RelativeLayout> 
    </TableLayout> 
</ScrollView>> </LinearLayout>

片段2 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"> 
<ScrollView 
    xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent"> 
    <TableLayout 
     android:layout_width="match_parent" 
     android:layout_height="match_parent" 
     android:layout_gravity="center_horizontal" 
     android:background="#fff" 
     android:stretchColumns="*"> 

     <TableRow 
      android:layout_width="match_parent" 
      android:layout_height="match_parent" 
      android:background="@drawable/border"> 

      <TextView 
       android:layout_width="wrap_content" 
       android:layout_height="wrap_content" 
       android:textAppearance="?android:attr/textAppearanceMedium" 
       android:text="Person:" 
       android:id="@+id/txtPerson" 
       android:textStyle="bold" 
       android:layout_gravity="center|center_horizontal"/> 

      <EditText 
       android:layout_width="match_parent" 
       android:layout_height="wrap_content" 
       android:id="@+id/editTxtPerson" 
       android:hint="Person in charge" 
       android:background="@drawable/border" 
       android:paddingLeft="5dp" 
       android:layout_marginRight="5dp" 
       android:singleLine="true" 
       android:inputType="textNoSuggestions" 
       /> 
     </TableRow> 

     <TableRow 
      android:layout_width="match_parent" 
      android:layout_height="match_parent" 
      android:background="@drawable/border"> 

      <TextView 
       android:layout_width="wrap_content" 
       android:layout_height="wrap_content" 
       android:textAppearance="?android:attr/textAppearanceMedium" 
       android:text="E-mail:" 
       android:id="@+id/txtEmail" 
       android:textStyle="bold" 
       android:layout_gravity="center|center_horizontal"/> 

      <EditText 
       android:layout_width="match_parent" 
       android:layout_height="wrap_content" 
       android:id="@+id/editTxtEmail" 
       android:hint="E-mail address" 
       android:background="@drawable/border" 
       android:paddingLeft="5dp" 
       android:layout_marginRight="5dp" 
       android:inputType="textEmailAddress" 
       android:singleLine="true"/> 
     </TableRow> 

     <TableRow 
      android:layout_width="match_parent" 
      android:layout_height="match_parent" 
      android:background="@drawable/border"> 

      <TextView 
       android:layout_width="wrap_content" 
       android:layout_height="wrap_content" 
       android:textAppearance="?android:attr/textAppearanceMedium" 
       android:text="Tel:" 
       android:id="@+id/txtTel" 
       android:textStyle="bold" 
       android:layout_gravity="center|center_horizontal"/> 

      <EditText 
       android:layout_width="match_parent" 
       android:layout_height="wrap_content" 
       android:id="@+id/edtTxtTel" 
       android:hint="Telephone" 
       android:background="@drawable/border" 
       android:paddingLeft="5dp" 
       android:layout_marginRight="5dp" 
       android:singleLine="true" 
       android:inputType="phone"/> 
     </TableRow> 

     <TableRow 
      android:layout_width="match_parent" 
      android:layout_height="match_parent" 
      android:background="@drawable/border"> 

      <TextView 
       android:layout_width="wrap_content" 
       android:layout_height="wrap_content" 
       android:textAppearance="?android:attr/textAppearanceMedium" 
       android:text="Remark" 
       android:id="@+id/txtRemark" 
       android:textStyle="bold" 
       android:layout_gravity="center|top"/> 

      <EditText 
       android:layout_width="match_parent" 
       android:layout_height="wrap_content" 
       android:inputType="textMultiLine" 
       android:gravity="top" 
       android:lines="5" 
       android:ems="10" 
       android:scrollbars="vertical" 
       android:id="@+id/edtTxtRemark" 
       android:hint="Remark" 
       android:background="@drawable/border" 
       android:paddingLeft="5dp" 
       android:layout_marginRight="5dp" 
       android:maxLines="5"/> 
     </TableRow> 

     <RelativeLayout 
      android:layout_width="match_parent" 
      android:layout_height="match_parent"> 
      <Button 
       android:layout_width="match_parent" 
       android:layout_height="wrap_content" 
       android:text="Confirm" 
       android:id="@+id/btnSave" 
       android:layout_marginTop="5dp"/> 

     </RelativeLayout> 
    </TableLayout> 
</ScrollView>>

来源

2016-03-15 Jacky Chong

在你的主要片段（一个持有视图页面，标签布局）保持两个片段的引用（你只需要fisrt，但以防万一以后你也可能需要秒）。像这样：

private SparseArray<Fragment> registeredFragments = new SparseArray<Fragment>(); 
@Override 
    public Object instantiateItem(ViewGroup container, int position) { 
     Log.d("dj", "intializing items FragPageAdapter"); 
     Fragment fragment = (Fragment) super.instantiateItem(container, position); 
     registeredFragments.put(position, fragment); 
     return fragment; 
    } 

    @Override 
    public void destroyItem(ViewGroup container, int position, Object object) { 
     Log.d("dj", "destroyed items FragPageAdapter"); 
     registeredFragments.remove(position); 
     super.destroyItem(container, position, object); 
    } 

    public Fragment getRegisteredFragment(int fragmentPosition) { 

    return registeredFragments.get(fragmentPosition); 
    }

而在你的片段2其中u想引用，并检查了一些成果做：确保ü已经设定了，当你在做的乌尔活动交易保持主片段的标签主要片段。这样你就可以使用标签来引用主要的片段。

mainFragment= (MainFragment) getActivity().getSupportFragmentManager(). 
      findFragmentByTag(ActivityHoldingMainFragment.TAG_FOR_MAIN_FRAG);

在第二片段获取第一片段这样的参考：

public Fragment findFragmentByPosition(int fragmentPosition) { 

    return mainFragment.getRegisteredFragment(fragmentPosition); 
} 
FirstFragment firstFrag = (FirstFragment) findFragmentByPosition(0); 
ArrayList<String> formOneData = firstFrag.getFormOneData();

// findFragmentByPosition（0）将被保持第一个片段;

在第一个片段中创建一个方法来获取所有数据;像这样：

public ArrayList<String> getFormOneData(){ 
    //TODO perform fecthing data from edit texts here and pass it as an //arraylist or any other of your choice 
}

来源

2016-03-15 06:53:32 DJphy

顺便说一句，我怎么能得到我的片段标签在另一个活动？ –

在活动类中创建一个静态变量，您可以使用它并随后使用它。像这样....在你做事务的活动中： - **声明一个类级别的变量：public static final String TAG_FOR_MAIN_FRAG =“packageName.MainFragment”; 然后声明并初始化您的主要片段：MainFragment mainFrag = new MainFragment（）; //稍后执行事务 getSupportFragmentManager（）。beginTransaction（）。replace（container.getId（），mainFrag，TAG_FOR_MAIN_FRAG）.addToBackStack（TAG_FOR_MAIN_FRAG）。承诺（）; ** //添加到后台是你的选择。你可以删除它也 – DJphy

然后在另一个活动引用你的mainFragment使用标签声明为公共静态在前面提到的活动。 – DJphy

FragmentTabHost将片段从片段传递到另一片段

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