Question

我正在尝试使用4个片段

[F1]

[F2] [F3] [F4]

F1将有3个按钮可在F2，F3和F4之间切换，但我不知道如何使用按钮属性，如在正常的活动中

这就是我在F1代码中的含义

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    // Inflate the layout for this fragment

    return inflater.inflate(R.layout.fragment_01, container, false);

}

Answer 1

检查一下：

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    // Inflate the layout for this fragment

    View view = inflater.inflate(R.layout.fragment_01, container, false);
    // here you have the reference of your button
    Button yourButton = (Button)view.findViewById(R.id.your_button_id);
    return view;

}

Answer 2

你应该首先获得视图，然后从视图中获取按钮也许是这样的

<<<<<<< mouseLabelCallbacks
const QMap<Qt::MouseButton, QString> TLabel::mMouseButtons = {
        {Qt::NoButton, QStringLiteral("NoButton")},           {Qt::LeftButton, QStringLiteral("LeftButton")},       {Qt::RightButton,     QStringLiteral("RightButton")},
        {Qt::MidButton, QStringLiteral("MidButton")},         {Qt::BackButton, QStringLiteral("BackButton")},       {Qt::ForwardButton,     QStringLiteral("ForwardButton")},
        {Qt::TaskButton, QStringLiteral("TaskButton")},       {Qt::ExtraButton4, QStringLiteral("ExtraButton4")},   {Qt::ExtraButton5,     QStringLiteral("ExtraButton5")},
        {Qt::ExtraButton6, QStringLiteral("ExtraButton6")},   {Qt::ExtraButton7, QStringLiteral("ExtraButton7")},   {Qt::ExtraButton8,     QStringLiteral("ExtraButton8")},
        {Qt::ExtraButton9, QStringLiteral("ExtraButton9")},   {Qt::ExtraButton10, QStringLiteral("ExtraButton10")}, {Qt::ExtraButton11,     QStringLiteral("ExtraButton11")},
        {Qt::ExtraButton12, QStringLiteral("ExtraButton12")}, {Qt::ExtraButton13, QStringLiteral("ExtraButton13")}, {Qt::ExtraButton14,     QStringLiteral("ExtraButton14")},
        {Qt::ExtraButton15, QStringLiteral("ExtraButton15")}, {Qt::ExtraButton16, QStringLiteral("ExtraButton16")}, {Qt::ExtraButton17,     QStringLiteral("ExtraButton17")},
        {Qt::ExtraButton18, QStringLiteral("ExtraButton18")}, {Qt::ExtraButton19, QStringLiteral("ExtraButton19")}, {Qt::ExtraButton20,     QStringLiteral("ExtraButton20")},
        {Qt::ExtraButton21, QStringLiteral("ExtraButton21")}, {Qt::ExtraButton22, QStringLiteral("ExtraButton22")}, {Qt::ExtraButton23,     QStringLiteral("ExtraButton23")},
        {Qt::ExtraButton24, QStringLiteral("ExtraButton24")},

};


=======
>>>>>>> development

也许你应该先做一些教程，不是那么难

Answer 3

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

    View view = inflater.inflate(R.layout.fragment_01, container, false);
    Button firstButton = (Button)view.findViewById(R.id.firstbutton);

    Button seconButton = (Button)view.findViewById(R.id.seconbutton);

    Button thirdButton = (Button)view.findViewById(R.id.thirdbutton);
    return view;

}

Answer 4

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

        rootView = inflater.inflate(R.layout.fragment_one, container, false);


        Button button = (Button) rootView.findViewById(R.id.buttonSayHi);
        button.setOnClickListener(new View.OnClickListener()
        {
            @Override
            public void onClick(View v)
            {
                onButtonClicked(v);
            }
        });
        return rootView;
    }

  public void onButtonClicked(View view)
  {
          //do your stuff here..           
    final FragmentTransaction ft = getFragmentManager().beginTransaction(); 
    ft.replace(R.id.frameLayoutFragmentContainer, new FragmentTwo(), "NewFragmentTag"); 
    ft.commit(); 

    ft.addToBackStack(null);    
  }
}

Answer 5

It's a simple way to reference a button or any widget in a fragment.

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        View view = inflater.inflate(R.layout.fragment_fragment_one, container, false);

        btnOne = view.findViewById(R.id.btnOne);

return view;

如何使用片段内的按钮？

5 个答案: