Question

复活节快乐给社区所有人！我在Android中编写FragmentTabHost示例时感到绝望。我现在已经练了两天，看不到任何成功。

我的目标是在MainActivity中打开一个片段，放置一个FragmentTabHost 在这个片段上，并在标签页的上下文中分配另一个片段。

正如您在屏幕截图中看到的那样，嵌入页面的顶部被切断了通过选项卡控件的标题。放在顶部的按钮不是真的可见了。

我在这里添加了我的代码。我的思维错误在哪里？我怀疑它会很容易解决，但到目前为止，我正在徒劳地尝试。

public class MainActivity extends AppCompatActivity {

private Fragment fragment;

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

    fragment = new BaseFragment();
    FragmentManager fragmentManager = getSupportFragmentManager();
    FragmentTransaction ft = fragmentManager.beginTransaction();
    ft.replace(R.id.fragment_container, fragment);
    ft.commit();
}
}

public class BaseFragment extends Fragment {

private FragmentTabHost mTabHost;

private View getTabIndicator(Context context, int title, int icon) {
    View view = LayoutInflater.from(context).inflate(R.layout.tab_layout, null);
    ImageView iv = (ImageView) view.findViewById(R.id.imageView);
    iv.setImageResource(icon);
    TextView tv = (TextView) view.findViewById(R.id.textView);
    tv.setText(title);
    return view;
}

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

    return inflater.inflate(R.layout.fragment_base, null);
}

@Override
public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
    super.onViewCreated(view, savedInstanceState);
    mTabHost = (FragmentTabHost) getActivity().findViewById(R.id.tabhost);
    mTabHost.setup(getActivity(), getActivity().getSupportFragmentManager(), R.id.tabFrameLayout);

    mTabHost.addTab(
            mTabHost.newTabSpec("tab1").setIndicator(getTabIndicator(mTabHost.getContext(), R.string.label_1, 0)),
            TabFragment.class, null);
    mTabHost.addTab(
            mTabHost.newTabSpec("tab2").setIndicator(getTabIndicator(mTabHost.getContext(), R.string.label_2, 0)),
            TabFragment.class, null);
    mTabHost.addTab(
            mTabHost.newTabSpec("tab3").setIndicator(getTabIndicator(mTabHost.getContext(), R.string.label_3, 0)),
            TabFragment.class, null);
}
}


public class TabFragment extends Fragment {


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

    return inflater.inflate(R.layout.fragment_tab, null);
}

@Override
public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
    super.onViewCreated(view, savedInstanceState);
}
}

activity_main.xml中

    <?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/fragment_container"
    android:background="@color/colorPrimary"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />

fragment_base.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.app.FragmentTabHost
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/tabhost"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical" >

        <TabWidget
            android:id="@+id/tabs"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_weight="0"
            android:orientation="horizontal" />

        <FrameLayout
            android:id="@+id/tabFrameLayout"
            android:layout_width="match_parent"
            android:layout_height="0dp"
            android:layout_weight="1" />
    </LinearLayout>

</android.support.v4.app.FragmentTabHost>

fragment_tab.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical"
    android:background="@drawable/tab_indicator">


    <Button
        android:id="@+id/button"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Button" />

    <CheckBox
        android:id="@+id/checkBox"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="CheckBox" />

    <RadioButton
        android:id="@+id/radioButton"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="RadioButton" />
</LinearLayout>

FragmentTabHost嵌入页面被截断

0 个答案: