ViewPager和Tablayout
布局文件主类第二个类第三个类二、三布局适配器
布局文件
<android.support.design.widget.TabLayout
android:id="@+id/tables"
android:layout_width="match_parent"
android:layout_height="wrap_content">
</android.support.design.widget.TabLayout>
<android.support.v4.view.ViewPager
android:layout_below="@id/tables"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/pager"
android:layout_above="@id/lay"
>
</android.support.v4.view.ViewPager>
<LinearLayout
android:id="@+id/lay"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:layout_alignParentBottom="true"
>
<RadioGroup
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
>
<RadioButton
android:id="@+id/t1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="1"
android:layout_weight="1"
android:gravity="center"
android:button="@null"
android:drawableTop="@drawable/backgrounds"
/>
<RadioButton
android:id="@+id/t2"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="2"
android:layout_weight="1"
android:gravity="center"
android:button="@null"
android:drawableTop="@drawable/back1"
/>
</RadioGroup>
</LinearLayout>
主类
ViewPager viewPager;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_demo);
viewPager = findViewById(R.id.pager);
ArrayList<Fragment> list = new ArrayList<>();
list.add(new Fragment1());
list.add(new Fragment2());
MyAdapter myAdapter = new MyAdapter(getSupportFragmentManager(), list);
viewPager.setAdapter(myAdapter);
viewPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {
@Override
public void onPageScrolled(int i, float v, int i1) {
}
@Override
public void onPageSelected(int i) {
if(i == 0){
RadioButton r1 = findViewById(R.id.t1);
r1.setChecked(true);
}else{
RadioButton r2 = findViewById(R.id.t2);
r2.setChecked(true);
}
}
@Override
public void onPageScrollStateChanged(int i) {
}
});
}
第二个类
public class Fragment1 extends Fragment {
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
return inflater.inflate(R.layout.left,container,false);
}
}
第三个类
public class Fragment2 extends Fragment {
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
return inflater.inflate(R.layout.right,container,false);
}
}
二、三布局
<android.support.constraint.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#ff0"
>
</android.support.constraint.ConstraintLayout>
<android.support.constraint.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#f00"
>
</android.support.constraint.ConstraintLayout>
适配器
class MyAdapter extends FragmentPagerAdapter {
ArrayList<Fragment> list;
public MyAdapter(FragmentManager fm,ArrayList<Fragment> list) {
super(fm);
this.list = list;
}
@Override
public Fragment getItem(int i) {
return list.get(i);
}
@Override
public int getCount() {
return list.size();
}
}
效果图
