Java 以编程方式创建带有Viewpager的表格布局不起作用
活动类: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
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)