Java 以编程方式创建带有Viewpager的表格布局不起作用

Java 以编程方式创建带有Viewpager的表格布局不起作用,java,android,android-viewpager,Java,Android,Android Viewpager,活动类: public class DynamicActivity extends AppCompatActivity{ private LinearLayout mLinearLayout; private View mView; @Override protected void onCreate(@Nullable Bundle savedInstanceState) { super.onCreate(savedInstanceState

活动类:

public class DynamicActivity extends AppCompatActivity{

    private LinearLayout mLinearLayout;
    private View mView;


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

        mLinearLayout = new LinearLayout(DynamicActivity.this);
        mLinearLayout.setOrientation(LinearLayout.VERTICAL);
        mLinearLayout.setLayoutParams(new LinearLayout.LayoutParams(
                ViewGroup.LayoutParams.MATCH_PARENT,
                ViewGroup.LayoutParams.MATCH_PARENT));


        TabLayout tabLayout = new TabLayout(DynamicActivity.this);
        tabLayout.setLayoutParams(new ViewGroup.LayoutParams(
                ViewGroup.LayoutParams.MATCH_PARENT,
                ViewGroup.LayoutParams.WRAP_CONTENT));
        tabLayout.setTabMode(TabLayout.MODE_SCROLLABLE);
        tabLayout.setTabGravity(TabLayout.GRAVITY_FILL);
        tabLayout.setBackgroundColor(Color.CYAN);
        mLinearLayout.addView(tabLayout);


        ViewPager viewPager = new ViewPager(DynamicActivity.this);
        viewPager.setLayoutParams(new ViewGroup.LayoutParams(
                ViewGroup.LayoutParams.MATCH_PARENT,
                ViewGroup.LayoutParams.WRAP_CONTENT));
        viewPager.setBackgroundColor(Color.BLUE);
        mLinearLayout.addView(viewPager);

        ViewPagerAdapter viewPagerAdapter = new ViewPagerAdapter(getSupportFragmentManager());
        viewPager.setAdapter(viewPagerAdapter);

        tabLayout.addTab(tabLayout.newTab());
        tabLayout.addTab(tabLayout.newTab());
        tabLayout.addTab(tabLayout.newTab());

        tabLayout.setupWithViewPager(viewPager);

        setContentView(mLinearLayout);
    }
}

**Adapter Class :**
public class ViewPagerAdapter extends FragmentStatePagerAdapter{
    public ViewPagerAdapter(FragmentManager fm) {
        super(fm);
    }

    @Override
    public CharSequence getPageTitle(int position) {
        return "Test";
    }

    @Override
    public Fragment getItem(int position) {
        return new TestFagment();
    }

    @Override
    public int getCount() {
        return 3;
    }
}
例外情况:

public class DynamicActivity extends AppCompatActivity{

    private LinearLayout mLinearLayout;
    private View mView;


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

        mLinearLayout = new LinearLayout(DynamicActivity.this);
        mLinearLayout.setOrientation(LinearLayout.VERTICAL);
        mLinearLayout.setLayoutParams(new LinearLayout.LayoutParams(
                ViewGroup.LayoutParams.MATCH_PARENT,
                ViewGroup.LayoutParams.MATCH_PARENT));


        TabLayout tabLayout = new TabLayout(DynamicActivity.this);
        tabLayout.setLayoutParams(new ViewGroup.LayoutParams(
                ViewGroup.LayoutParams.MATCH_PARENT,
                ViewGroup.LayoutParams.WRAP_CONTENT));
        tabLayout.setTabMode(TabLayout.MODE_SCROLLABLE);
        tabLayout.setTabGravity(TabLayout.GRAVITY_FILL);
        tabLayout.setBackgroundColor(Color.CYAN);
        mLinearLayout.addView(tabLayout);


        ViewPager viewPager = new ViewPager(DynamicActivity.this);
        viewPager.setLayoutParams(new ViewGroup.LayoutParams(
                ViewGroup.LayoutParams.MATCH_PARENT,
                ViewGroup.LayoutParams.WRAP_CONTENT));
        viewPager.setBackgroundColor(Color.BLUE);
        mLinearLayout.addView(viewPager);

        ViewPagerAdapter viewPagerAdapter = new ViewPagerAdapter(getSupportFragmentManager());
        viewPager.setAdapter(viewPagerAdapter);

        tabLayout.addTab(tabLayout.newTab());
        tabLayout.addTab(tabLayout.newTab());
        tabLayout.addTab(tabLayout.newTab());

        tabLayout.setupWithViewPager(viewPager);

        setContentView(mLinearLayout);
    }
}

**Adapter Class :**
public class ViewPagerAdapter extends FragmentStatePagerAdapter{
    public ViewPagerAdapter(FragmentManager fm) {
        super(fm);
    }

    @Override
    public CharSequence getPageTitle(int position) {
        return "Test";
    }

    @Override
    public Fragment getItem(int position) {
        return new TestFagment();
    }

    @Override
    public int getCount() {
        return 3;
    }
}
致命异常:主

E/AndroidRuntime:致命异常:主 进程:com.example.locale.tablayoutdynamicsample,PID:27084 java.lang.IllegalStateException:带有适配器com.example.locale.tablayoutdynamicsample的ViewPager。ViewPagerAdapter@3b0e90d6需要视图id 在android.support.v4.app.FragmentStatePagerAdapter.startUpdate(FragmentStatePagerAdapter.java:87)上 位于android.support.v4.view.ViewPager.populate(ViewPager.java:1148) 位于android.support.v4.view.ViewPager.populate(ViewPager.java:1116) 在android.support.v4.view.ViewPager.onMeasure上(ViewPager.java:1642) 在android.view.view.measure(view.java:18580) 位于android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5827) 位于android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1435) 位于android.widget.LinearLayout.measureVertical(LinearLayout.java:721) 位于android.widget.LinearLayout.onMeasure(LinearLayout.java:612) 在android.view.view.measure(view.java:18580) 位于android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5827) 位于android.widget.FrameLayout.onMeasure(FrameLayout.java:430) 位于android.support.v7.widget.ContentFrameLayout.onMeasure(ContentFrameLayout.java:139) 在android.view.view.measure(view.java:18580) 位于android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5827) 位于android.support.v7.widget.ActionBarOverlayLayout.onMeasure(ActionBarOverlayLayout.java:393) 在android.view.view.measure(view.java:18580) 位于android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5827) 位于android.widget.FrameLayout.onMeasure(FrameLayout.java:430) 在android.view.view.measure(view.java:18580) 位于android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5827) 位于android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1435) 位于android.widget.LinearLayout.measureVertical(LinearLayout.java:721) 位于android.widget.LinearLayout.onMeasure(LinearLayout.java:612) 在android.view.view.measure(view.java:18580) 位于android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5827) 位于android.widget.FrameLayout.onMeasure(FrameLayout.java:430) 在com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure上(PhoneWindow.java:2897) 在android.view.view.measure(view.java:18580) 在android.view.ViewRootImpl.performMeasure上(ViewRootImpl.java:2248) 在android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1306) 在android.view.ViewRootImpl.performTraversals上(ViewRootImpl.java:1548) 位于android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1191)