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Android 方法“;onCreateView“;“课堂内”;占位符片段“; public View onCreateView(布局、充气机、视图组容器、, Bundle savedInstanceState){ ArrayList rootView=新的ArrayList(); 视图根1=充气机。充气(R.layout.fragment1\u主页,容器,错误); 视图根2=充气机。充气(R.layout.fragment2\u主页,容器,错误); 视图根3=充气机。充气(R.layout.fragment3\u主页,容器,错误); 视图根4=充气机。充气(R.layout.fragment4\u主页,容器,错误); 添加(root1); 添加(root2); 添加(root3); 添加(root4); 开关(getArguments().getInt(参数节号)){ 案例1: 视图v=rootView.get(0); 按钮butt1=(按钮)v.findViewById(R.id.butt1); 最终文本视图文本1=(文本视图)v.findviewbyd(R.id.section_标签); butt1.setOnClickListener(新视图.OnClickListener(){ @凌驾 公共void onClick(视图v){ text1.setText(“你好”); } }); 返回v; 案例2: 返回rootView.get(1); 案例3: 返回rootView.get(2); 案例4: 返回rootView.get(3); 违约: 返回null; } }_Android_Android Fragments - Fatal编程技术网

Android 方法“;onCreateView“;“课堂内”;占位符片段“; public View onCreateView(布局、充气机、视图组容器、, Bundle savedInstanceState){ ArrayList rootView=新的ArrayList(); 视图根1=充气机。充气(R.layout.fragment1\u主页,容器,错误); 视图根2=充气机。充气(R.layout.fragment2\u主页,容器,错误); 视图根3=充气机。充气(R.layout.fragment3\u主页,容器,错误); 视图根4=充气机。充气(R.layout.fragment4\u主页,容器,错误); 添加(root1); 添加(root2); 添加(root3); 添加(root4); 开关(getArguments().getInt(参数节号)){ 案例1: 视图v=rootView.get(0); 按钮butt1=(按钮)v.findViewById(R.id.butt1); 最终文本视图文本1=(文本视图)v.findviewbyd(R.id.section_标签); butt1.setOnClickListener(新视图.OnClickListener(){ @凌驾 公共void onClick(视图v){ text1.setText(“你好”); } }); 返回v; 案例2: 返回rootView.get(1); 案例3: 返回rootView.get(2); 案例4: 返回rootView.get(3); 违约: 返回null; } }

Android 方法“;onCreateView“;“课堂内”;占位符片段“; public View onCreateView(布局、充气机、视图组容器、, Bundle savedInstanceState){ ArrayList rootView=新的ArrayList(); 视图根1=充气机。充气(R.layout.fragment1\u主页,容器,错误); 视图根2=充气机。充气(R.layout.fragment2\u主页,容器,错误); 视图根3=充气机。充气(R.layout.fragment3\u主页,容器,错误); 视图根4=充气机。充气(R.layout.fragment4\u主页,容器,错误); 添加(root1); 添加(root2); 添加(root3); 添加(root4); 开关(getArguments().getInt(参数节号)){ 案例1: 视图v=rootView.get(0); 按钮butt1=(按钮)v.findViewById(R.id.butt1); 最终文本视图文本1=(文本视图)v.findviewbyd(R.id.section_标签); butt1.setOnClickListener(新视图.OnClickListener(){ @凌驾 公共void onClick(视图v){ text1.setText(“你好”); } }); 返回v; 案例2: 返回rootView.get(1); 案例3: 返回rootView.get(2); 案例4: 返回rootView.get(3); 违约: 返回null; } },android,android-fragments,Android,Android Fragments,这是我的代码, 使用switch处理视图和侦听器的代码太长,我不知道如何将这些代码放到独立的类文件中。请帮忙 选择这条路 public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { ArrayList<View> rootView = new ArrayLi

这是我的代码,

使用switch处理视图和侦听器的代码太长,
我不知道如何将这些代码放到独立的类文件中。请帮忙

选择这条路

public View onCreateView(LayoutInflater inflater, ViewGroup container,
                                 Bundle savedInstanceState) {
            ArrayList<View> rootView = new ArrayList<>();
            View root1 = inflater.inflate(R.layout.fragment1_main_page, container, false);
            View root2 = inflater.inflate(R.layout.fragment2_main_page, container, false);
            View root3 = inflater.inflate(R.layout.fragment3_main_page, container, false);
            View root4 = inflater.inflate(R.layout.fragment4_main_page, container, false);
            rootView.add(root1);
            rootView.add(root2);
            rootView.add(root3);
            rootView.add(root4);
            switch (getArguments().getInt(ARG_SECTION_NUMBER)) {
                case 1:
                    View v = rootView.get(0);
                    Button butt1 = (Button) v.findViewById(R.id.butt1);
                    final TextView text1 = (TextView)v.findViewById(R.id.section_label);
                    butt1.setOnClickListener(new View.OnClickListener() {
                        @Override
                        public void onClick(View v) {
                            text1.setText("Hello");
                        }
                    });
                    return v;
                case 2:
                    return rootView.get(1);
                case 3:
                    return rootView.get(2);
                case 4:
                    return rootView.get(3);
                default:
                    return null;
            }
        }
创建用于设置侦听器的新方法

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



            switch (getArguments().getInt(ARG_SECTION_NUMBER)) {
                case 1:
                    View root1 =  inflater.inflate(R.layout.fragment1_main_page, container, false);
                      setListener(root1);
                    return root1;
                case 2:
                    View root2 = inflater.inflate(R.layout.fragment2_main_page, container, false);
                    return root2
                case 3:
                    View root3 = inflater.inflate(R.layout.fragment3_main_page, container, false);
                    return root3;

                default:
                    return null;
            }
        }

是的,但是是否可以将每个案例作为单个类文件或方法进行剪切?因为当我完成整个开关时,时间会非常长
 private void setListener(View root1) {

  // you can do declaration and set Listener here 

    }