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Android 片段中的制表符_Android_Android Fragments_Android Tabhost - Fatal编程技术网

Android 片段中的制表符

Android 片段中的制表符,android,android-fragments,android-tabhost,Android,Android Fragments,Android Tabhost,我的android应用程序有两个片段 1.左一(即菜单列表) 2.右一(即左菜单中一项的详细信息) 我面临的问题是在每个详细信息屏幕(右侧)上添加选项卡 我搜索了很多标签“tabs inside fragment”或“how to AddTabHost in a fragment”等 请帮帮我。 我被困在里面了!:-(使用最新的支持库,您可以在片段中使用ViewPager。ViewPager在类似选项卡的视图中显示片段(例如在Play Store中)。ViewPager中的“选项卡”也是片段。我

我的android应用程序有两个片段 1.左一(即菜单列表) 2.右一(即左菜单中一项的详细信息)

我面临的问题是在每个详细信息屏幕(右侧)上添加选项卡 我搜索了很多标签“tabs inside fragment”或“how to AddTabHost in a fragment”等

请帮帮我。
我被困在里面了!:-(

使用最新的支持库,您可以在片段中使用ViewPager。ViewPager在类似选项卡的视图中显示片段(例如在Play Store中)。ViewPager中的“选项卡”也是片段。

我面临同样的问题,此解决方案对我有效:

MainActivity-此活动包含actionbar选项卡(不是tabhost)

片段1(表1)

Fragment2(tab2)-此片段左侧有一个内部线性布局,用于显示权重为1的菜单,右侧有另一个线性布局,用于显示详细信息。在右侧线性布局中,我设置了一个放射组的样式,以显示类似于此放射组的选项卡(类似于此:但带有选项卡资产)然后我将更改linearlayouts以模拟细节片段内的选项卡

我希望你明白这个想法

试试这个

public class TabBar extends FragmentActivity implements
            TabHost.OnTabChangeListener {

        public static Context mContext;
        private TabHost mTabHost;
        private HashMap<String, TabInfo> mapTabInfo = new HashMap<String, TabBar.TabInfo>();
        private TabInfo mLastTab = null;

        private class TabInfo {
            private String tag;
            private Class<?> clss;
            private Bundle args;
            private Fragment fragment;

            TabInfo(String tag, Class<?> clazz, Bundle args) {
                this.tag = tag;
                this.clss = clazz;
                this.args = args;
            }

        }

        class TabFactory implements TabContentFactory {

            private final Context mContext;

            public TabFactory(Context context) {
                mContext = context;
            }

            /**
             * (non-Javadoc)
             * 
             * @see android.widget.TabHost.TabContentFactory#createTabContent(java.lang.String)
             */
            public View createTabContent(String tag) {
                View v = new View(mContext);
                v.setMinimumWidth(0);
                v.setMinimumHeight(0);
                return v;
            }

        }

        /**
         * (non-Javadoc)
         * 
         * @see android.support.v4.app.FragmentActivity#onCreate(android.os.Bundle)
         */
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.tabs_layout);

            initialiseTabHost(savedInstanceState);
            if (savedInstanceState != null) {
                mTabHost.setCurrentTabByTag(savedInstanceState.getString("tab")); 
            }
        }


        protected void onSaveInstanceState(Bundle outState) {
            outState.putString("tab", mTabHost.getCurrentTabTag()); // save the tab
                                                                    // selected
            super.onSaveInstanceState(outState);
        }

        private void initialiseTabHost(Bundle args) {
            mTabHost = (TabHost) findViewById(android.R.id.tabhost);
            mTabHost.setup();
            // mTabHost.getTabWidget().setStripEnabled(false);

            TabInfo tabInfo = null;
            TabBar.addTab(this, this.mTabHost,this.mTabHost.newTabSpec("Tab1"), (tabInfo = new TabInfo("Tab1", MyMapFragment.class, args)), "Favourite",
                    R.drawable.frd_tab_select_custom);
            this.mapTabInfo.put(tabInfo.tag, tabInfo);
            TabBar.addTab(this, this.mTabHost,this.mTabHost.newTabSpec("Tab2"), (tabInfo = new TabInfo(
                            "Tab2", PrflTab.class, args)), "Favourite",
                    R.drawable.me_tab_select_custom);
            this.mapTabInfo.put(tabInfo.tag, tabInfo);
            TabBar.addTab(this, this.mTabHost,
                    this.mTabHost.newTabSpec("Tab3"), (tabInfo = new TabInfo("Tab3", RequestFragment.class, args)), "Favourite",
                    R.drawable.request_tab_select_custom);
            this.mapTabInfo.put(tabInfo.tag, tabInfo);


            // Default to first tab

                this.onTabChanged("Tab1");

            mTabHost.setOnTabChangedListener(this);
        }

        /**
         * @param activity
         * @param tabHost
         * @param tabSpec
         * @param clss
         * @param args
         */
        private static View prepareTabView(Context context, String text,
                int drawable) {
            View view = LayoutInflater.from(context).inflate(
                    R.layout.tab_indicator, null);
            ((ImageView) view.findViewById(R.id.icon)).setImageResource(drawable);
            return view;

        }

        private static void addTab(TabBar activity, TabHost tabHost,
                TabHost.TabSpec tabSpec, TabInfo tabInfo, String title, int drawable) {
            // Attach a Tab view factory to the spec
            tabSpec.setContent(activity.new TabFactory(activity));
            String tag = tabSpec.getTag();
            View view = prepareTabView(tabHost.getContext(), title, drawable);
            tabSpec.setIndicator(view);

            tabInfo.fragment = activity.getSupportFragmentManager().findFragmentByTag(tag);
            if (tabInfo.fragment != null && !tabInfo.fragment.isDetached()) {
                FragmentTransaction ft = activity.getSupportFragmentManager().beginTransaction();
                ft.detach(tabInfo.fragment);
                ft.commit();
                activity.getSupportFragmentManager().executePendingTransactions();
            }

            tabHost.addTab(tabSpec);
            boolean flag = activity.getIntent().getBooleanExtra("notifi_falg", false);
            if (flag) {
                tabHost.setCurrentTab(2);
            }
        }


        public void onTabChanged(String tag) {
            TabInfo newTab = this.mapTabInfo.get(tag);
            if (mLastTab != newTab) {
                FragmentTransaction ft = this.getSupportFragmentManager().beginTransaction();
                if (mLastTab != null) {
                    if (mLastTab.fragment != null) {
                        ft.detach(mLastTab.fragment);
                    }
                }
                if (newTab != null) {
                    if (newTab.fragment == null) {
                        newTab.fragment = Fragment.instantiate(this,newTab.clss.getName(), newTab.args);
                        ft.add(R.id.tab_1, newTab.fragment, newTab.tag);
                    } else {
                        ft.attach(newTab.fragment);
                    }
                }

                mLastTab = newTab;
                ft.commit();
                this.getSupportFragmentManager().executePendingTransactions();
            }
        }

        @Override
        public void onStop() {
            super.onStop();
        }
    }
公共类选项卡栏扩展了FragmentActivity实现
TabHost.OnTabChangeListener{
公共静态语境;
私有TabHost-mTabHost;
私有HashMap mapTabInfo=新HashMap();
private TabInfo mLastTab=null;
私有类TabInfo{
私有字符串标签;
私家级CLS;
私有包args;
私有片段;
TabInfo(字符串标记、类clazz、包参数){
this.tag=tag;
this.clss=clazz;
this.args=args;
}
}
类TabFactory实现TabContentFactory{
私有最终上下文mContext;
公共选项卡工厂(上下文){
mContext=上下文;
}
/**
*(非Javadoc)
* 
*@see android.widget.TabHost.TabContentFactory#createTabContent(java.lang.String)
*/
公共视图createTabContent(字符串标记){
视图v=新视图(mContext);
v、 设置最小宽度(0);
v、 设置最小高度(0);
返回v;
}
}
/**
*(非Javadoc)
* 
*@see android.support.v4.app.FragmentActivity#onCreate(android.os.Bundle)
*/
创建时受保护的void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.tabs\u布局);
initialiseTabHost(savedInstanceState);
如果(savedInstanceState!=null){
mTabHost.setCurrentTabByTag(savedInstanceState.getString(“tab”));
}
}
SaveInstanceState上受保护的无效(束超出状态){
outState.putString(“tab”,mTabHost.getCurrentTabTag());//保存选项卡
//精选
super.onSaveInstanceState(超出状态);
}
私有void initialiseTabHost(Bundle args){
mTabHost=(TabHost)findViewById(android.R.id.TabHost);
mTabHost.setup();
//mTabHost.getTabWidget().setStripEnabled(false);
TabInfo TabInfo=null;
TabBar.addTab(this,this.mTabHost,this.mTabHost.newTabSpec(“Tab1”),(tabInfo=newtabinfo(“Tab1”,MyMapFragment.class,args)),“收藏夹”,
R.可绘制。frd\u选项卡\u选择\u自定义);
this.mapTabInfo.put(tabInfo.tag,tabInfo);
TabBar.addTab(this,this.mTabHost,this.mTabHost.newTabSpec(“Tab2”),(tabInfo=newtabinfo(
“Tab2”,PrflTab.class,args)),“收藏夹”,
R.可绘制。me\u选项卡\u选择\u自定义);
this.mapTabInfo.put(tabInfo.tag,tabInfo);
TabBar.addTab(this,this.mTabHost,
this.mTabHost.newTabSpec(“Tab3”),(tabInfo=newtabinfo(“Tab3”,RequestFragment.class,args)),“favorite”,
R.可绘制。请求(选项卡(选择)(自定义);
this.mapTabInfo.put(tabInfo.tag,tabInfo);
//默认设置为第一个选项卡
本表已更改(“表1”);
mTabHost.setOnTabChangedListener(此);
}
/**
*@param活动
*@param tabHost
*@param tabSpec
*@param-clss
*@param args
*/
私有静态视图prepareTabView(上下文、字符串文本、,
整数(可绘制){
视图=布局更平坦。从(上下文)。充气(
R.layout.tab_指示器,空);
((ImageView)view.findViewById(R.id.icon)).setImageResource(可绘制);
返回视图;
}
私有静态void addTab(TabBar活动、TabHost TabHost、,
TabHost.TabSpec TabSpec,TabInfo TabInfo,字符串标题,int可绘制){
//将选项卡视图工厂附着到等级库
tabSpec.setContent(activity.new TabFactory(activity));
String tag=tabSpec.getTag();
View=prepareTabView(tabHost.getContext(),标题,可绘制);
tabSpec.setIndicator(视图);
tabInfo.fragment=activity.getSupportFragmentManager().findFragmentByTag(标记);
if(tabInfo.fragment!=null&&!tabInfo.fragment.isDetached()){
FragmentTransaction ft=activity.getSupportFragmentManager().beginTransaction();
ft.detach(tabInfo.fragment);
ft.commit();
activity.getSupportFragmentManager().executePendingTransactions();
}
tabHost.addTab(tabSpec);
布尔标志=activity.getIntent().getBooleanExtra(“notifi_falg”,false);
国际单项体育联合会(旗){
tabHost.setCurrentTab(2);