如何在 android activity 中设置 viewpager，它使用抽屉扩展 BaseActivity

Question

我有一个带有 BaseActivity 的 android 项目，它为其他活动实现抽屉。一切都很好，但我的问题是，当我需要在一个扩展 activity 中添加一个 viewpager 时，viewpager 不起作用并且 tabhost 不显示！我使用了没有 BaseActivity 的相同代码并且一切正常，但在这种情况下它不起作用。我想当我将 activity 的 FragmentManager 传递给 viewpager 适配器时出了点问题。谁能帮帮我？

P.S：波纹管是我的代码的一部分：

基础活动Class：

public abstract class BaseActivity extends ActionBarActivity {

private DrawerLayout mDrawer;
private RecyclerView mRecycler;
private RecyclerView.Adapter mAdapter;
private Toolbar toolbar;
private RelativeLayout FullLayout;
private FrameLayout ContentLayout;

@Override
public void setContentView(int layoutResID) {
    FullLayout = (RelativeLayout) getLayoutInflater().inflate(R.layout.activity_base, null);
    ContentLayout = (FrameLayout) FullLayout.findViewById(R.id.content_frame);
    getLayoutInflater().inflate(layoutResID, ContentLayout, true);
    super.setContentView(FullLayout);

    //Drawer Initialization
    InitilizeDrawer();
}
}

MainActivity Class（有 ViewPager）：

public class MainActivity extends BaseActivity {

private StaticMaterialTabs tabHost;
private ViewPager pager;
private MainTabbarAdapter pagerAdapter;

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

    //Init View Pager
    tabHost = (StaticMaterialTabs) findViewById(R.id.tabHost);
    pager = (ViewPager) findViewById(R.id.pager);
    pagerAdapter = new MainTabbarAdapter(getSupportFragmentManager());
    pager.setAdapter(pagerAdapter);
    tabHost.setViewPager(pager);

}
}

BaseActivity 布局：

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">

<FrameLayout
    android:id="@+id/content_frame"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />

<android.support.v4.widget.DrawerLayout
    android:id="@+id/DrawerLayout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:elevation="7dp">

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

        <include
            android:id="@+id/toolbar"
            layout="@layout/toolbar"></include>

    </LinearLayout>

    <android.support.v7.widget.RecyclerView
        android:id="@+id/RecyclerView"
        android:layout_width="240dp"
        android:layout_height="match_parent"
        android:layout_gravity="right"
        android:background="@color/White"
        android:scrollbars="vertical"></android.support.v7.widget.RecyclerView>
</android.support.v4.widget.DrawerLayout>

MainActivity 布局：

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="right"
android:orientation="vertical">

<ir.MaterialTab.StaticMaterialTabs
    android:id="@+id/tabHost"
    android:layout_width="match_parent"
    android:layout_height="48dp"
    android:background="@color/ColorPrimary"
    android:textColor="@color/Gray"
    app:mtIndicatorColor="@color/ScrollColor"
    app:mtMrlRippleColor="@color/ScrollColor"
    app:mtPaddingMiddle="false"
    app:mtSameWeightTabs="false"
    app:mtTextColorSelected="@color/White" />

<android.support.v4.view.ViewPager
    android:id="@+id/pager"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_below="@+id/tabHost" />

Answer 1

对于那些有同样问题的人，我找到了如下工作示例：

BaseActivity Class:

public abstract class BaseActivity extends ActionBarActivity {

private DrawerLayout mDrawer;
private RecyclerView mRecycler;
private RecyclerView.Adapter mAdapter;
private Toolbar toolbar;
private RelativeLayout FullLayout;
private FrameLayout ContentLayout;

@Override
public void setContentView(int layoutResID) {
    FullLayout = (RelativeLayout) getLayoutInflater().inflate(R.layout.activity_base, null);
    ContentLayout = (FrameLayout) FullLayout.findViewById(R.id.content_frame);
    getLayoutInflater().inflate(layoutResID, ContentLayout, true);
    super.setContentView(FullLayout);

    //Drawer Initialization
    InitilizeDrawer();
}

BaseActivity 布局：

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">

<android.support.v4.widget.DrawerLayout
    android:id="@+id/DrawerLayout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:elevation="7dp">

    <FrameLayout
        android:id="@+id/content_frame"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

    <android.support.v7.widget.RecyclerView
        android:id="@+id/RecyclerView"
        android:layout_width="280dp"
        android:layout_height="match_parent"
        android:layout_gravity="right"
        android:background="@color/White"
        android:scrollbars="vertical"></android.support.v7.widget.RecyclerView>

</android.support.v4.widget.DrawerLayout>

MainActivity Class（使用 ViewPager）：

public class MainActivity extends BaseActivity {

private StaticMaterialTabs tabHost;
private ViewPager pager;
private MainTabbarAdapter pagerAdapter;

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

    //Init View Pager
    tabHost = (StaticMaterialTabs) findViewById(R.id.tabHost);
    pager = (ViewPager) findViewById(R.id.pager);
    pagerAdapter = new MainTabbarAdapter(getSupportFragmentManager());
    pager.setAdapter(pagerAdapter);
    tabHost.setViewPager(pager);
}

MainActivity 布局：

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="right"
android:orientation="vertical">

<include
    android:id="@+id/toolbar"
    layout="@layout/toolbar"></include>

<ir.MaterialTab.StaticMaterialTabs
    android:id="@+id/tabHost"
    android:layout_width="match_parent"
    android:layout_height="48dp"
    android:background="@color/ColorPrimary"
    android:textColor="@color/Gray"
    app:mtIndicatorColor="@color/ScrollColor"
    app:mtMrlRippleColor="@color/ScrollColor"
    app:mtPaddingMiddle="false"
    app:mtSameWeightTabs="false"
    app:mtTextColorSelected="@color/White" />

<android.support.v4.view.ViewPager
    android:id="@+id/pager"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_below="@+id/tabHost" />

</LinearLayout>

P.S: 我不记得是什么问题了（因为它是过去的），所以为那些有同样问题的人添加这个经过测试的答案。

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