Question

我正在构建一个使用Helpshift API的Android应用。一切正常，但我目前正在尝试使用Fragments和ActionBar将所有内容移动到TabLayout中。我做了一个迷你应用来弄清楚碎片的功能而不会弄乱其他所有东西。我有一个主屏幕，你点击一个按钮，它启动包含带有碎片的TabLayout的活动。我无法弄清楚如何使可嵌入的支持片段出现在TabLayout中。我对Android很陌生，很抱歉，如果我的代码不是最好的。现在，在片段交易中没有替换占位符，我无法弄清楚原因。我非常感谢任何建议！谢谢:)让我知道我是否可以提供其他任何东西

这是我的主要活动类（由于隐私原因，帮助变更信息已被修改，希望我的问题仍然可以修复）

    public class MainActivity extends AppCompatActivity {
    Context mContext;
    public ConstraintLayout layout;
    Activity goToFragment;
    public Button start;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.home_screen);

        mContext = getApplicationContext();
        goToFragment = MainActivity.this;

       start = (Button) findViewById(R.id.button);
       start.setOnClickListener(new View.OnClickListener(){
           @Override
           public void onClick (View view) {
               launchFragments();
           }
       });

        //HELPSHIFT SET UP
        Core.init(All.getInstance());
        InstallConfig installConfig = new InstallConfig.Builder()
                        .setScreenOrientation(ActivityInfo.SCREEN_ORIENTATION_SENSOR_LANDSCAPE)
                .setEnableInAppNotification(true)
                .build();
        try {
            Core.install(getApplication(),
                    "****APIKEY*****",
                    "****DOMAIN*****",
                    "****APPID******", installConfig);

        } catch (InstallException e) {
            android.util.Log.e("Helpshift", "install call : ", e);
        }

    }

    private void launchFragments() {
        Intent intent1 = new Intent(mContext, HomeTab.class);
        intent1.putExtra("fragmentNumber", 0);
        startActivity(intent1);
    }
    }

Here is my ViewPager Adapter class:

        public class ViewPagerAdapter extends FragmentPagerAdapter {
    private final List<Fragment> mFragmentList = new ArrayList<>();
    private final List<String> mFragmentTitleList = new ArrayList<>();

    public ViewPagerAdapter(FragmentManager manager){
        super(manager);
    }

    @Override
    public Fragment getItem(int position) {
        return mFragmentList.get(position);
    }

    @Override
    public int getCount() {
        return mFragmentList.size();
    }

    public void addFragment(Fragment fragment, String title) {
        mFragmentList.add(fragment);
        mFragmentTitleList.add(title);
    }

    @Override
    public CharSequence getPageTitle(int position) {
        return mFragmentTitleList.get(position);
    }
    }

这是我的片段活动类：

public class HomeTab extends AppCompatActivity {
//    ImageButton FindCareButton;
private Toolbar toolbar;
private TabLayout tabLayout;
private ViewPager viewPager;
public Context context;


@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    context = getApplicationContext();

    Intent intent1 = getIntent();
    int var = intent1.getIntExtra("fragmentNumber", 0);

    toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);

    getSupportActionBar().setDisplayHomeAsUpEnabled(true);

    viewPager = (ViewPager) findViewById(R.id.viewpager);
    setupViewPager(viewPager);
    viewPager.setCurrentItem(var);

    tabLayout = (TabLayout) findViewById(R.id.tabs);
    tabLayout.setupWithViewPager(viewPager);

    if (findViewById(R.id.placeholder) != null) {
        if (savedInstanceState != null) {
            return;
        }
        Fragment faqFragment = new Fragment();
        faqFragment = Support.getFAQsFragment(HomeTab.this);
        getSupportFragmentManager().beginTransaction().add(R.id.placeholder, faqFragment).commit();
    }
   }




    private void setupViewPager(ViewPager viewPager){
        ViewPagerAdapter adapter = new ViewPagerAdapter(getSupportFragmentManager());
        adapter.addFragment(new FAQTab(), "FAQ");
        viewPager.setAdapter(adapter);
    }
    }

这是我的FAQTab课程：

public class FAQTab extends Fragment {
public FAQTab(){
}


@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
}

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
   return inflater.inflate(R.layout.faq_tab, container, false);

}

}

对于布局，我的faq_tab布局是一个空的FrameLayout，其id为＃34;占位符＆＃34; 我的home_screen布局是带有按钮的ConstraintLayout（id＆＃34;按钮＆＃34;）这是我的activity_main.xml：

    <?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.example.sasha.fragment_tester.MainActivity">

    <android.support.design.widget.AppBarLayout
        android:id="@+id/BarLayout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">

        <android.support.v7.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="?android:attr/actionBarSize"
            android:background="?android:attr/colorPrimary"
            app:layout_scrollFlags="scroll|enterAlways"
            app:popupTheme="@style/ThemeOverlay.AppCompat.Light"/>
        <android.support.design.widget.TabLayout
            android:id="@+id/tabs"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            app:tabGravity="fill"/>

    </android.support.design.widget.AppBarLayout>

    <android.support.v4.view.ViewPager
        android:id="@+id/viewpager"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:layout_behavior="@string/appbar_scrolling_view_behavior"
        />
   </android.support.design.widget.CoordinatorLayout>

如何使用Helpshift Embeddable Support Fragments Android

0 个答案: