activity班:
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:
致命异常:main
E/AndroidRuntime:致命异常:主进程:com.example.locale.TablayoutDynamicSample.27084 java.lang.IllegalState异常:带有适配器com.example.locale.TablayoutDynamicSample.ViewPagerAdapter@3B0E90D6的ViewPager在Android.support.v4.app.FragmentStatePagerAdapter.StartupDate(FragmentStatePagerAdapter.87)在Android.support.v4.view.ViewPager.Populate(Android.support.v7.widget.contentframelayout.onMeasure(contentframelayout.java:139)在Android.view.view.measure(view.java:18580)在Android.support.v7.widget.actionbaroverlayout.onMeasure(actionbaroverlayout.java:5827)在Android.support.v7.widget.actionbaroverlayout.393)在Android.view.view.view.measure(view.java:5827)在.FrameLayout.onMeasure(FrameLayout.java:430)在com.android.internal.policy.impl.PhoneWindow$decoview.onMeasure(PhoneWindow.java:2897)在android.view.view.measure(view.java:18580)在android.view.view.measure(view.view.rootimpl.performMeasure(view.rootimpl.java:2248)在android.view.view.rootimpl.measurehiarchy(ain(ActivityThread.java:5951)在java.lang.Reflect.Method.Invoke(原生方法)在java.lang.Reflect.Method.Invoke(Method.java:372)在com.android.internal.os.zygoteInit$MethodAndargscaller.run(zygoteInit.java:1388)在com.android.internal.os.zygoteInit.main(zygoteInit.java:1183)
它说“vewpager with Adapter viewpageradapter@3b0e90d6 requires a view id
”所以请尝试以下操作:
viewPager.setId(anyInteger);