Question

我有一个片段。在这个片段中，我宣布了一个鳍状肢和一个水平回收视图。我遇到了问题而且不知道如何解决它们。

当我打开应用程序时，一切看起来都很不错screenshot link，但是当我将屏幕旋转到横向时，我看到了鳍状肢screenshot link的视觉错误，但当我将其旋转回肖像时已经看到了recyclerview已经screenshot link。

HomeFragment.class

public class HomeFragment extends RoboFragment {
    @InjectView(R.id.viewFlipper)
    ViewFlipper mViewFlipper;
    ArrayList<Category> categoriesList;
    private View rootView;
    private GestureDetector mGestureDetector;
    private int[] mResources = {
            R.mipmap.temp_screen_1,
            R.mipmap.temp_screen_2,
            R.mipmap.temp_screen_3,
            R.mipmap.temp_screen_4
    };

    public void createCategories() {

        categoriesList = new ArrayList<>();
        categoriesList.add(new Category("Android", R.mipmap.icon_android));
        categoriesList.add(new Category("IOS", R.mipmap.icon_ios));
        categoriesList.add(new Category("Windows Phone", R.mipmap.icon_windows_phone));
        categoriesList.add(new Category("Blackberry", R.mipmap.icon_blackberry));
        categoriesList.add(new Category("Budget phones", R.mipmap.icon_phone));
        categoriesList.add(new Category("Tablets", R.mipmap.icon_tablet));
        categoriesList.add(new Category("Jewelry & Watch", R.mipmap.icon_watch));
        categoriesList.add(new Category("Health & Beauty", R.mipmap.icon_umbrella));
    }


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

        return rootView;
    }

    @Override
    public void onViewCreated(View view, Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);
        Utils.showToolbar(getActivity());

        setSlideShow();
        setCategories();

    }

    private void setCategories() {
        createCategories();

        RecyclerView recyclerView = (RecyclerView) rootView.findViewById(R.id.my_recycler_view);
        recyclerView.setHasFixedSize(true);
        HorizontalRecycleViewAdapter adapter = new HorizontalRecycleViewAdapter(getActivity(), categoriesList);
        recyclerView.setLayoutManager(new LinearLayoutManager(getActivity(), LinearLayoutManager.HORIZONTAL, false));
        recyclerView.setNestedScrollingEnabled(false);
        recyclerView.setAdapter(adapter);
    }

    private void setSlideShow() {
        for (int mResource : mResources) {
            ResizableImageView imgageView = new ResizableImageView(getActivity());
            imgageView.setImageResource(mResource);
            mViewFlipper.addView(imgageView);
        }

        mViewFlipper.setInAnimation(getActivity(), android.R.anim.fade_in);
        mViewFlipper.setOutAnimation(getActivity(), android.R.anim.fade_out);

        CustomGestureDetector customGestureDetector = new CustomGestureDetector(mViewFlipper);
        mGestureDetector = new GestureDetector(getActivity(), customGestureDetector);

        mViewFlipper.setAutoStart(true);
        mViewFlipper.setFlipInterval(5000);
    }
}

fragment_home.xml

<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:focusable="true"
        android:focusableInTouchMode="true">

        <ViewFlipper
            android:id="@+id/viewFlipper"
            android:layout_width="match_parent"
            android:layout_height="wrap_content" />

        <android.support.v7.widget.RecyclerView
            android:layout_below="@+id/viewFlipper"
            android:id="@+id/my_recycler_view"
            android:layout_width="match_parent"
            android:layout_height="200dp"
            android:scrollbars="none" />
    </RelativeLayout>

</ScrollView>

MainActivity.class

@ContentView(R.layout.activity_main)
public class MainActivity extends RoboActionBarActivity {

    @InjectView(R.id.tool_bar)
    Toolbar toolbar;

    SlidingMenu menu;

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

        setToolBar();
        setSlideMenu();

        if (savedInstanceState == null) {
            getSupportFragmentManager().beginTransaction()
                    .add(R.id.container, new SplashFragment())
                    .commit();
        } else {
            getSupportFragmentManager().beginTransaction()
                    .add(R.id.container, new HomeFragment())
                    .commit();
        }
    }

    private void setToolBar() {
        setSupportActionBar(toolbar);
    }

    private void setSlideMenu() {
        menu = new SlidingMenu(this);
        menu.setMenu(R.layout.slidemenu);
        menu.setMode(SlidingMenu.LEFT);
        menu.setSlidingEnabled(false);
        menu.setTouchModeAbove(SlidingMenu.TOUCHMODE_FULLSCREEN);
        menu.setFadeDegree(0.35f);
        menu.attachToActivity(this, SlidingMenu.SLIDING_CONTENT);
        menu.setBehindWidthRes(R.dimen.slidingmenu_behind_width);// Setting toolbar as the ActionBar with setSupportActionBar() call
    }

    public void toggleSlidingMenu(View view) {
        menu.toggle();
    }
}

activity_main.xml中

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".activities.MainActivity">

    <include
        android:id="@+id/tool_bar"
        layout="@layout/tool_bar" />
    <FrameLayout
        android:layout_below="@+id/tool_bar"
        android:id="@+id/container"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        tools:context=".activities.MainActivity"
        tools:ignore="MergeRootFrame" />
</RelativeLayout>

Answer 1

您似乎多次添加您的片段，没有错误，您只有两次相同的视图，如果您将方向更改为纵向，则您有3 ...等等。

NULL

使用if (savedInstanceState == null) { getSupportFragmentManager().beginTransaction() .add(R.id.container, new SplashFragment()) .commit(); } else { getSupportFragmentManager().beginTransaction() .add(R.id.container, new HomeFragment()) // <- here .commit(); }或检查片段是否已添加。

Android UI错误与recyclerview和脚蹼

1 个答案: