{"id":843,"date":"2023-05-08T01:06:15","date_gmt":"2023-08-10T16:34:41","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/index.php\/2023\/11\/30\/android%e5%9c%a8%e7%89%87%e6%ae%b5%e4%b9%8b%e9%97%b4%e4%bc%a0%e9%80%92%e6%95%b0%e6%8d%ae%e3%80%82\/"},"modified":"2025-08-03T12:20:54","modified_gmt":"2025-08-03T04:20:54","slug":"android%e5%9c%a8%e7%89%87%e6%ae%b5%e4%b9%8b%e9%97%b4%e4%bc%a0%e9%80%92%e6%95%b0%e6%8d%ae%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/android%e5%9c%a8%e7%89%87%e6%ae%b5%e4%b9%8b%e9%97%b4%e4%bc%a0%e9%80%92%e6%95%b0%e6%8d%ae%e3%80%82\/","title":{"rendered":"Android Fragment\u95f4\u6570\u636e\u4f20\u9012\u5b8c\u5168\u6307\u5357\uff1a5\u79cd\u5b9e\u73b0\u65b9\u6cd5\u8be6\u89e3"},"content":{"rendered":"

\u8fd9\u662f\u6587\u7ae0\u300aAndroid\u5728\u7247\u6bb5\u4e4b\u95f4\u4f20\u9012\u6570\u636e\u300b\u7684\u7b2c1\u90e8\u5206\uff08\u51711\u90e8\u5206\uff09\u3002<\/p>\n

\u5728\u672c\u6559\u7a0b\u4e2d\uff0c\u6211\u4eec\u5c06\u5f00\u53d1\u4e00\u4e2a\u5305\u542bTabLayout\u3001ViewPager\u548cFragments\u7684\u5e94\u7528\u7a0b\u5e8f\u3002\u6211\u4eec\u5c06\u5b9e\u73b0\u4e00\u79cd\u529f\u80fd\uff0c\u53ef\u4ee5\u5c06\u6570\u636e\u4ece\u4e00\u4e2aFragment\u4f20\u9012\u5230\u53e6\u4e00\u4e2aFragment\u3002<\/p>\n

\u5728Android\u4e2d\uff0c\u5728\u7247\u6bb5\u4e4b\u95f4\u4f20\u9012\u6570\u636e\u53ea\u80fd\u5728\u6d3b\u52a8\u7ea7\u522b\u4e0a\u4f7f\u7528\u610f\u56fe\u6765\u53d1\u9001\u6570\u636e\u3002\u8981\u5728\u7247\u6bb5\u4e4b\u95f4\u4f20\u9012\u6570\u636e\uff0c\u6211\u4eec\u9700\u8981\u521b\u5efa\u81ea\u5df1\u7684\u63a5\u53e3\u3002\u4e0b\u9762\u662f\u4ece\u4e00\u4e2a\u7247\u6bb5\u5230\u53e6\u4e00\u4e2a\u7247\u6bb5\u53d1\u9001\u5b57\u7b26\u4e32\u6570\u636e\u7684\u6d41\u7a0b\u3002\u8ba9\u6211\u4eec\u5f00\u59cb\u5b9e\u73b0\u4e0a\u8ff0\u6d41\u7a0b\u3002<\/h2>\n

Android\u5728\u7247\u6bb5\u4e4b\u95f4\u4f20\u9012\u6570\u636e\u7684\u9879\u76ee\u7ed3\u6784<\/h3>\n

\u4e0b\u9762\u7ed9\u51fa\u4e86MainActivity.java\u7c7b\u7684xml\u5e03\u5c40\u3002<\/p>\n

<?xml version=\"1.0\" encoding=\"utf-8\"?>\r\n<android.support.design.widget.CoordinatorLayout xmlns:android=\"https:\/\/schemas.android.com\/apk\/res\/android\"\r\n    xmlns:app=\"https:\/\/schemas.android.com\/apk\/res-auto\"\r\n    xmlns:tools=\"https:\/\/schemas.android.com\/tools\"\r\n    android:layout_width=\"match_parent\"\r\n    android:layout_height=\"match_parent\"\r\n    android:fitsSystemWindows=\"true\"\r\n    tools:context=\"com.Olivia.passingdatabetweenfragments.MainActivity\">\r\n\r\n    <android.support.design.widget.AppBarLayout\r\n        android:layout_width=\"match_parent\"\r\n        android:layout_height=\"wrap_content\"\r\n        android:theme=\"@style\/AppTheme.AppBarOverlay\">\r\n\r\n        <android.support.v7.widget.Toolbar\r\n            android:id=\"@+id\/toolbar\"\r\n            android:layout_width=\"match_parent\"\r\n            android:layout_height=\"?attr\/actionBarSize\"\r\n            android:background=\"?attr\/colorPrimary\"\r\n            app:popupTheme=\"@style\/AppTheme.PopupOverlay\" \/>\r\n\r\n        <android.support.design.widget.TabLayout\r\n            android:id=\"@+id\/tabs\"\r\n            style=\"@style\/MyStyle\"\r\n            android:layout_width=\"match_parent\"\r\n            android:layout_height=\"wrap_content\"\r\n            app:tabGravity=\"fill\"\r\n            app:tabMode=\"fixed\" \/>\r\n\r\n    <\/android.support.design.widget.AppBarLayout>\r\n\r\n\r\n    <android.support.v4.view.ViewPager\r\n        android:id=\"@+id\/viewPager\"\r\n        android:layout_width=\"match_parent\"\r\n        android:layout_height=\"wrap_content\"\r\n        app:layout_behavior=\"@string\/appbar_scrolling_view_behavior\" \/>\r\n\r\n\r\n<\/android.support.design.widget.CoordinatorLayout>\r\n<\/code><\/pre>\n
TabLayout\u548cToolBar\u7684\u6837\u5f0f\u5728styles.xml\u6587\u4ef6\u4e2d\u5b9a\u4e49\uff0c\u5982\u4e0b\u6240\u793a\u3002<\/p>\n
<resources>\r\n\r\n    <!-- Base application theme. -->\r\n    <style name=\"AppTheme\" parent=\"Theme.AppCompat.Light.NoActionBar\">\r\n        <!-- Customize your theme here. -->\r\n        <item name=\"colorPrimary\">@color\/colorPrimary<\/item>\r\n        <item name=\"colorPrimaryDark\">@color\/colorPrimaryDark<\/item>\r\n        <item name=\"colorAccent\">@color\/colorAccent<\/item>\r\n    <\/style>\r\n\r\n    <style name=\"AppTheme.AppBarOverlay\" parent=\"ThemeOverlay.AppCompat.Dark.ActionBar\" \/>\r\n\r\n    <style name=\"AppTheme.PopupOverlay\" parent=\"ThemeOverlay.AppCompat.Light\" \/>\r\n\r\n    <style name=\"MyStyle\" parent=\"Widget.Design.TabLayout\">\r\n        <item name=\"tabIndicatorColor\">#FFFF<\/item>\r\n        <item name=\"tabIndicatorHeight\">5dp<\/item>\r\n        <item name=\"tabPaddingStart\">8dp<\/item>\r\n        <item name=\"tabPaddingEnd\">8dp<\/item>\r\n    <\/style>\r\n\r\n<\/resources>\r\n<\/code><\/pre>\n
ViewPagerAdapter.java\u662f\u521d\u59cb\u5316Fragment\u7684\u5730\u65b9\u3002\u4ee5\u4e0b\u662f\u4ee3\u7801\u3002<\/p>\n
public class ViewPagerAdapter extends FragmentPagerAdapter {\r\n\r\n    public ViewPagerAdapter(FragmentManager fm) {\r\n        super(fm);\r\n    }\r\n\r\n    @Override\r\n    public Fragment getItem(int position) {\r\n        Fragment fragment = null;\r\n        if (position == 0) {\r\n            fragment = new FragmentOne();\r\n        } else if (position == 1) {\r\n            fragment = new FragmentTwo();\r\n        }\r\n        return fragment;\r\n    }\r\n\r\n    @Override\r\n    public int getCount() {\r\n        return 2;\r\n    }\r\n\r\n    @Override\r\n    public CharSequence getPageTitle(int position) {\r\n        String title = null;\r\n        if (position == 0) {\r\n            title = \"Tab-1\";\r\n        } else if (position == 1) {\r\n            title = \"Tab-2\";\r\n        }\r\n        return title;\r\n    }\r\n}\r\n<\/code><\/pre>\n
\u5728FragmentOne\u4e2d\uff0c\u5c06EditText\u4e2d\u8f93\u5165\u7684\u6570\u636e\u53d1\u9001\u5230FragmentTwo\u3002\u4e0b\u9762\u662ffragment_one.xml\u7684XML\u5e03\u5c40\u3002<\/p>\n
<?xml version=\"1.0\" encoding=\"utf-8\"?>\r\n\r\n<ScrollView xmlns:android=\"https:\/\/schemas.android.com\/apk\/res\/android\"\r\n    android:layout_width=\"match_parent\"\r\n    android:layout_height=\"wrap_content\"\r\n    android:fillViewport=\"true\">\r\n\r\n    <RelativeLayout\r\n        android:layout_width=\"match_parent\"\r\n        android:layout_height=\"wrap_content\">\r\n\r\n\r\n        <EditText\r\n            android:id=\"@+id\/inMessage\"\r\n            android:layout_width=\"match_parent\"\r\n            android:layout_height=\"wrap_content\"\r\n            android:layout_above=\"@+id\/btnPassData\"\r\n            android:layout_margin=\"16dp\"\r\n            android:hint=\"Enter here\" \/>\r\n\r\n        <Button\r\n            android:id=\"@+id\/btnPassData\"\r\n            android:layout_width=\"wrap_content\"\r\n            android:layout_height=\"wrap_content\"\r\n            android:layout_centerInParent=\"true\"\r\n            android:text=\"PASS DATA TO FRAGMENT TWO\" \/>\r\n\r\n\r\n    <\/RelativeLayout>\r\n<\/ScrollView>\r\n<\/code><\/pre>\n
\u4e0b\u9762\u7ed9\u51fa\u4e86fragment_two.xml\u7684xml\u5e03\u5c40\u3002<\/p>\n
<?xml version=\"1.0\" encoding=\"utf-8\"?>\r\n<RelativeLayout xmlns:android=\"https:\/\/schemas.android.com\/apk\/res\/android\"\r\n    android:layout_width=\"match_parent\"\r\n    android:layout_height=\"match_parent\">\r\n\r\n    <TextView\r\n        android:id=\"@+id\/txtData\"\r\n        android:layout_width=\"wrap_content\"\r\n        android:layout_height=\"wrap_content\"\r\n        android:textSize=\"20sp\"\r\n        android:layout_centerInParent=\"true\"\r\n        android:text=\"No data received\" \/>\r\n\r\n\r\n<\/RelativeLayout>\r\n<\/code><\/pre>\n
\u4ee5\u4e0b\u662fFragmentOne.java\u7c7b\u7684\u4ee3\u7801\u3002<\/p>\n
package com.Olivia.passingdatabetweenfragments;\r\n\r\nimport android.content.Context;\r\nimport android.os.Bundle;\r\nimport android.support.annotation.Nullable;\r\nimport android.support.v4.app.Fragment;\r\nimport android.view.LayoutInflater;\r\nimport android.view.View;\r\nimport android.view.ViewGroup;\r\nimport android.widget.Button;\r\nimport android.widget.EditText;\r\n\r\npublic class FragmentOne extends Fragment {\r\n\r\n    SendMessage SM;\r\n\r\n    @Nullable\r\n    @Override\r\n    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {\r\n        View rootView = inflater.inflate(\r\n                R.layout.fragment_one, container, false);\r\n        return rootView;\r\n\r\n\r\n    }\r\n\r\n    @Override\r\n    public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {\r\n        super.onViewCreated(view, savedInstanceState);\r\n\r\n        Button btnPassData = (Button) view.findViewById(R.id.btnPassData);\r\n        final EditText inData = (EditText) view.findViewById(R.id.inMessage);\r\n        btnPassData.setOnClickListener(new View.OnClickListener() {\r\n            @Override\r\n            public void onClick(View v) {\r\n                SM.sendData(inData.getText().toString().trim());\r\n            }\r\n        });\r\n\r\n    }\r\n\r\n    interface SendMessage {\r\n        void sendData(String message);\r\n    }\r\n\r\n    @Override\r\n    public void onAttach(Context context) {\r\n        super.onAttach(context);\r\n\r\n        try {\r\n            SM = (SendMessage) getActivity();\r\n        } catch (ClassCastException e) {\r\n            throw new ClassCastException(\"Error in retrieving data. Please try again\");\r\n        }\r\n    }\r\n}\r\n<\/code><\/pre>\n
\u5728\u4e0a\u9762\u7684onAttach\u65b9\u6cd5\u4e2d\u521d\u59cb\u5316\u4e86\u540d\u4e3aSendMessage\u7684\u81ea\u5b9a\u4e49\u63a5\u53e3\u3002\u8fd9\u4e2a\u63a5\u53e3\u5c06\u4f1a\u5728\u63a5\u4e0b\u6765\u6211\u4eec\u5373\u5c06\u770b\u5230\u7684MainActivity.java\u4e2d\u88ab\u5b9e\u73b0\u3002FragmentTwo.java\u7c7b\u7684\u4ee3\u7801\u5982\u4e0b\u6240\u793a\u3002<\/p>\n
package com.Olivia.passingdatabetweenfragments;\r\n\r\n\r\nimport android.os.Bundle;\r\nimport android.support.annotation.Nullable;\r\nimport android.support.v4.app.Fragment;\r\nimport android.view.LayoutInflater;\r\nimport android.view.View;\r\nimport android.view.ViewGroup;\r\nimport android.widget.TextView;\r\n\r\npublic class FragmentTwo extends Fragment {\r\n\r\n    TextView txtData;\r\n\r\n    @Nullable\r\n    @Override\r\n    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {\r\n        View rootView = inflater.inflate(\r\n                R.layout.fragment_two, container, false);\r\n        return rootView;\r\n    }\r\n\r\n    @Override\r\n    public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {\r\n        super.onViewCreated(view, savedInstanceState);\r\n\r\n        txtData = (TextView)view.findViewById(R.id.txtData);\r\n    }\r\n\r\n    protected void displayReceivedData(String message)\r\n    {\r\n        txtData.setText(\"Data received: \"+message);\r\n    }\r\n}\r\n<\/code><\/pre>\n
\u5728MainActivity.java\u4e2d\uff0c\u4ece\u81ea\u5b9a\u4e49\u63a5\u53e3\u7684\u65b9\u6cd5\u4e2d\u8c03\u7528FragmentTwo.java\u5b9e\u4f8b\u4e0a\u7684displayReceivedData()\u3002<\/p>\n
package com.Olivia.passingdatabetweenfragments;\r\n\r\nimport android.support.design.widget.TabLayout;\r\nimport android.support.v4.view.ViewPager;\r\nimport android.support.v7.app.AppCompatActivity;\r\nimport android.os.Bundle;\r\nimport android.support.v7.widget.Toolbar;\r\n\r\npublic class MainActivity extends AppCompatActivity implements FragmentOne.SendMessage{\r\n\r\n    TabLayout tabLayout;\r\n    ViewPager viewPager;\r\n    ViewPagerAdapter viewPagerAdapter;\r\n\r\n    @Override\r\n    protected void onCreate(Bundle savedInstanceState) {\r\n        super.onCreate(savedInstanceState);\r\n        setContentView(R.layout.activity_main);\r\n        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);\r\n        setSupportActionBar(toolbar);\r\n\r\n        viewPager = (ViewPager) findViewById(R.id.viewPager);\r\n        viewPagerAdapter = new ViewPagerAdapter(getSupportFragmentManager());\r\n        viewPager.setAdapter(viewPagerAdapter);\r\n        tabLayout = (TabLayout) findViewById(R.id.tabs);\r\n        tabLayout.setupWithViewPager(viewPager);\r\n    }\r\n\r\n    @Override\r\n    public void sendData(String message) {\r\n        String tag = \"android:switcher:\" + R.id.viewPager + \":\" + 1;\r\n        FragmentTwo f = (FragmentTwo) getSupportFragmentManager().findFragmentByTag(tag);\r\n        f.displayReceivedData(message);\r\n    }\r\n}\r\n<\/code><\/pre>\n
\u4ee5\u4e0a\u4ee3\u7801\u4e2d\u7684sendData\uff08\uff09\u65b9\u6cd5\u5728FragmentOne\u4e2d\u7684\u6309\u94ae\u88ab\u6309\u4e0b\u65f6\u88ab\u89e6\u53d1\u3002\u6211\u4eec\u4f7f\u7528findFragmentByTag\u65b9\u6cd5\u83b7\u53d6\u5df2\u7ecf\u5728ViewPagerAdapter\u4e2d\u521d\u59cb\u5316\u7684FragmentTwo\u3002\u4e0a\u8ff0\u5e94\u7528\u7a0b\u5e8f\u7684\u8f93\u51fa\u5982\u4e0b\u6240\u793a\u3002\u8fd9\u5c31\u7ed3\u675f\u4e86\u672c\u6559\u7a0b\u3002\u60a8\u53ef\u4ee5\u4ece\u4e0b\u9762\u7684\u94fe\u63a5\u4e0b\u8f7d\u6700\u7ec8\u7684Android PassingDataBetweenFragments\u9879\u76ee\u3002<\/p>\n
\u4e0b\u8f7d\u5b89\u5353\u4f20\u9012\u6570\u636e\u7684Fragment\u793a\u4f8b\u9879\u76ee<\/p>\n
\u53c2\u8003\uff1a\u788e\u7247\u5316\u6c9f\u901a<\/p>\n","protected":false},"excerpt":{"rendered":"
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